./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-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_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/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_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/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_10a81491-5c95-453f-a4ec-35068d1edac5/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 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b --- 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 18:15:50,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:15:50,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:15:50,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:15:50,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:15:50,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:15:50,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:15:50,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:15:50,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:15:50,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:15:50,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:15:50,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:15:50,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:15:50,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:15:50,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:15:50,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:15:50,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:15:50,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:15:50,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:15:50,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:15:50,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:15:50,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:15:50,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:15:50,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:15:50,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:15:50,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:15:50,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:15:50,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:15:50,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:15:50,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:15:50,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:15:50,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:15:50,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:15:50,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:15:50,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:15:50,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:15:50,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:15:50,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:15:50,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:15:50,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:15:50,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:15:50,141 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 18:15:50,182 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:15:50,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:15:50,183 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:15:50,184 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:15:50,185 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:15:50,185 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:15:50,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:15:50,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:15:50,186 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:15:50,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:15:50,187 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:15:50,188 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:15:50,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:15:50,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:15:50,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:15:50,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:15:50,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:15:50,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:15:50,189 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 18:15:50,190 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:15:50,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:15:50,190 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:15:50,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:15:50,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:15:50,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:15:50,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:15:50,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:15:50,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:15:50,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:15:50,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:15:50,193 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:15:50,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:15:50,193 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:15:50,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:15:50,194 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:15:50,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:15:50,194 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_10a81491-5c95-453f-a4ec-35068d1edac5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b [2022-11-25 18:15:50,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:15:50,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:15:50,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:15:50,482 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:15:50,482 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:15:50,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2022-11-25 18:15:53,615 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:15:53,880 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:15:53,881 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2022-11-25 18:15:53,888 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/data/04e446566/f4b6c38888c0406b8e6003c630d42df4/FLAG26341aa76 [2022-11-25 18:15:53,902 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/data/04e446566/f4b6c38888c0406b8e6003c630d42df4 [2022-11-25 18:15:53,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:15:53,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:15:53,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:15:53,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:15:53,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:15:53,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:15:53" (1/1) ... [2022-11-25 18:15:53,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a5dca5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:53, skipping insertion in model container [2022-11-25 18:15:53,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:15:53" (1/1) ... [2022-11-25 18:15:53,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:15:53,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:15:54,146 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_10a81491-5c95-453f-a4ec-35068d1edac5/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c[3034,3047] [2022-11-25 18:15:54,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:15:54,165 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:15:54,218 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_10a81491-5c95-453f-a4ec-35068d1edac5/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c[3034,3047] [2022-11-25 18:15:54,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:15:54,259 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:15:54,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:54 WrapperNode [2022-11-25 18:15:54,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:15:54,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:15:54,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:15:54,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:15:54,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:54" (1/1) ... [2022-11-25 18:15:54,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:54" (1/1) ... [2022-11-25 18:15:54,345 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 16, calls inlined = 24, statements flattened = 325 [2022-11-25 18:15:54,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:15:54,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:15:54,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:15:54,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:15:54,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:54" (1/1) ... [2022-11-25 18:15:54,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:54" (1/1) ... [2022-11-25 18:15:54,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:54" (1/1) ... [2022-11-25 18:15:54,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:54" (1/1) ... [2022-11-25 18:15:54,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:54" (1/1) ... [2022-11-25 18:15:54,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:54" (1/1) ... [2022-11-25 18:15:54,409 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:54" (1/1) ... [2022-11-25 18:15:54,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:54" (1/1) ... [2022-11-25 18:15:54,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:15:54,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:15:54,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:15:54,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:15:54,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:54" (1/1) ... [2022-11-25 18:15:54,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:15:54,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:15:54,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:15:54,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:15:54,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:15:54,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:15:54,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:15:54,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:15:54,514 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 18:15:54,515 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 18:15:54,515 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 18:15:54,515 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 18:15:54,515 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 18:15:54,515 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 18:15:54,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:15:54,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 18:15:54,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:15:54,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:15:54,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:15:54,518 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 18:15:54,736 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:15:54,738 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:15:55,436 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:15:55,452 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:15:55,452 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-25 18:15:55,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:15:55 BoogieIcfgContainer [2022-11-25 18:15:55,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:15:55,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:15:55,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:15:55,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:15:55,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:15:53" (1/3) ... [2022-11-25 18:15:55,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ac8a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:15:55, skipping insertion in model container [2022-11-25 18:15:55,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:54" (2/3) ... [2022-11-25 18:15:55,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ac8a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:15:55, skipping insertion in model container [2022-11-25 18:15:55,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:15:55" (3/3) ... [2022-11-25 18:15:55,476 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-trans.wvr.c [2022-11-25 18:15:55,486 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:15:55,498 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:15:55,498 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-25 18:15:55,499 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:15:55,685 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 18:15:55,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 421 places, 445 transitions, 914 flow [2022-11-25 18:15:56,002 INFO L130 PetriNetUnfolder]: 34/442 cut-off events. [2022-11-25 18:15:56,002 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 18:15:56,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 442 events. 34/442 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 941 event pairs, 0 based on Foata normal form. 0/378 useless extension candidates. Maximal degree in co-relation 336. Up to 2 conditions per place. [2022-11-25 18:15:56,019 INFO L82 GeneralOperation]: Start removeDead. Operand has 421 places, 445 transitions, 914 flow [2022-11-25 18:15:56,036 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 398 places, 421 transitions, 857 flow [2022-11-25 18:15:56,040 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:15:56,074 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 398 places, 421 transitions, 857 flow [2022-11-25 18:15:56,079 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 398 places, 421 transitions, 857 flow [2022-11-25 18:15:56,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 398 places, 421 transitions, 857 flow [2022-11-25 18:15:56,202 INFO L130 PetriNetUnfolder]: 33/421 cut-off events. [2022-11-25 18:15:56,202 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 18:15:56,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 421 events. 33/421 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 891 event pairs, 0 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 336. Up to 2 conditions per place. [2022-11-25 18:15:56,227 INFO L119 LiptonReduction]: Number of co-enabled transitions 43134 [2022-11-25 18:16:26,725 INFO L134 LiptonReduction]: Checked pairs total: 48352 [2022-11-25 18:16:26,726 INFO L136 LiptonReduction]: Total number of compositions: 565 [2022-11-25 18:16:26,742 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:16:26,749 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;@12e027e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:16:26,749 INFO L358 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2022-11-25 18:16:26,752 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-11-25 18:16:26,752 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:16:26,752 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:16:26,753 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 18:16:26,753 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2022-11-25 18:16:26,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:16:26,758 INFO L85 PathProgramCache]: Analyzing trace with hash 59181, now seen corresponding path program 1 times [2022-11-25 18:16:26,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:16:26,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467239414] [2022-11-25 18:16:26,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:16:26,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:16:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:16:27,072 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 18:16:27,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:16:27,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467239414] [2022-11-25 18:16:27,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467239414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:16:27,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:16:27,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:16:27,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517718542] [2022-11-25 18:16:27,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:16:27,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:16:27,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:16:27,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:16:27,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:16:27,172 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 1010 [2022-11-25 18:16:27,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 131 flow. Second operand has 3 states, 3 states have (on average 407.6666666666667) internal successors, (1223), 3 states have internal predecessors, (1223), 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 18:16:27,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:16:27,178 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 1010 [2022-11-25 18:16:27,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:16:30,097 INFO L130 PetriNetUnfolder]: 9519/13525 cut-off events. [2022-11-25 18:16:30,097 INFO L131 PetriNetUnfolder]: For 618/618 co-relation queries the response was YES. [2022-11-25 18:16:30,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27675 conditions, 13525 events. 9519/13525 cut-off events. For 618/618 co-relation queries the response was YES. Maximal size of possible extension queue 933. Compared 76206 event pairs, 8314 based on Foata normal form. 0/5557 useless extension candidates. Maximal degree in co-relation 12700. Up to 6767 conditions per place. [2022-11-25 18:16:30,195 INFO L137 encePairwiseOnDemand]: 991/1010 looper letters, 89 selfloop transitions, 6 changer transitions 0/95 dead transitions. [2022-11-25 18:16:30,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 95 transitions, 410 flow [2022-11-25 18:16:30,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:16:30,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:16:30,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1336 transitions. [2022-11-25 18:16:30,218 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4409240924092409 [2022-11-25 18:16:30,219 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1336 transitions. [2022-11-25 18:16:30,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1336 transitions. [2022-11-25 18:16:30,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:16:30,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1336 transitions. [2022-11-25 18:16:30,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 445.3333333333333) internal successors, (1336), 3 states have internal predecessors, (1336), 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 18:16:30,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1010.0) internal successors, (4040), 4 states have internal predecessors, (4040), 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 18:16:30,251 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1010.0) internal successors, (4040), 4 states have internal predecessors, (4040), 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 18:16:30,253 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 131 flow. Second operand 3 states and 1336 transitions. [2022-11-25 18:16:30,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 95 transitions, 410 flow [2022-11-25 18:16:30,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 95 transitions, 392 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-25 18:16:30,285 INFO L231 Difference]: Finished difference. Result has 54 places, 56 transitions, 164 flow [2022-11-25 18:16:30,287 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1010, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=54, PETRI_TRANSITIONS=56} [2022-11-25 18:16:30,292 INFO L288 CegarLoopForPetriNet]: 62 programPoint places, -8 predicate places. [2022-11-25 18:16:30,292 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 56 transitions, 164 flow [2022-11-25 18:16:30,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 407.6666666666667) internal successors, (1223), 3 states have internal predecessors, (1223), 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 18:16:30,294 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:16:30,295 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 18:16:30,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:16:30,296 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2022-11-25 18:16:30,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:16:30,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1837310, now seen corresponding path program 1 times [2022-11-25 18:16:30,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:16:30,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136300693] [2022-11-25 18:16:30,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:16:30,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:16:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:16:30,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:16:30,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:16:30,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136300693] [2022-11-25 18:16:30,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136300693] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:16:30,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158363066] [2022-11-25 18:16:30,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:16:30,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:16:30,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:16:30,491 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:16:30,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 18:16:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:16:30,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 18:16:30,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:16:30,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:16:30,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:16:30,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:16:30,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158363066] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:16:30,744 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:16:30,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-11-25 18:16:30,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444210359] [2022-11-25 18:16:30,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:16:30,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:16:30,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:16:30,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:16:30,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:16:30,856 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 1010 [2022-11-25 18:16:30,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 56 transitions, 164 flow. Second operand has 7 states, 7 states have (on average 408.14285714285717) internal successors, (2857), 7 states have internal predecessors, (2857), 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 18:16:30,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:16:30,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 1010 [2022-11-25 18:16:30,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:16:36,883 INFO L130 PetriNetUnfolder]: 23805/33811 cut-off events. [2022-11-25 18:16:36,884 INFO L131 PetriNetUnfolder]: For 300/300 co-relation queries the response was YES. [2022-11-25 18:16:36,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68734 conditions, 33811 events. 23805/33811 cut-off events. For 300/300 co-relation queries the response was YES. Maximal size of possible extension queue 1867. Compared 213003 event pairs, 20785 based on Foata normal form. 0/13906 useless extension candidates. Maximal degree in co-relation 54903. Up to 6765 conditions per place. [2022-11-25 18:16:37,056 INFO L137 encePairwiseOnDemand]: 998/1010 looper letters, 203 selfloop transitions, 33 changer transitions 0/236 dead transitions. [2022-11-25 18:16:37,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 236 transitions, 1080 flow [2022-11-25 18:16:37,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:16:37,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 18:16:37,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3094 transitions. [2022-11-25 18:16:37,064 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4376237623762376 [2022-11-25 18:16:37,065 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3094 transitions. [2022-11-25 18:16:37,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3094 transitions. [2022-11-25 18:16:37,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:16:37,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3094 transitions. [2022-11-25 18:16:37,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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 18:16:37,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1010.0) internal successors, (8080), 8 states have internal predecessors, (8080), 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 18:16:37,091 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1010.0) internal successors, (8080), 8 states have internal predecessors, (8080), 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 18:16:37,091 INFO L175 Difference]: Start difference. First operand has 54 places, 56 transitions, 164 flow. Second operand 7 states and 3094 transitions. [2022-11-25 18:16:37,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 236 transitions, 1080 flow [2022-11-25 18:16:37,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 236 transitions, 1056 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:16:37,096 INFO L231 Difference]: Finished difference. Result has 61 places, 80 transitions, 371 flow [2022-11-25 18:16:37,097 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1010, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=371, PETRI_PLACES=61, PETRI_TRANSITIONS=80} [2022-11-25 18:16:37,097 INFO L288 CegarLoopForPetriNet]: 62 programPoint places, -1 predicate places. [2022-11-25 18:16:37,098 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 80 transitions, 371 flow [2022-11-25 18:16:37,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 408.14285714285717) internal successors, (2857), 7 states have internal predecessors, (2857), 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 18:16:37,100 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:16:37,100 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1] [2022-11-25 18:16:37,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 18:16:37,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-25 18:16:37,318 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2022-11-25 18:16:37,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:16:37,319 INFO L85 PathProgramCache]: Analyzing trace with hash 56959310, now seen corresponding path program 1 times [2022-11-25 18:16:37,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:16:37,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364874096] [2022-11-25 18:16:37,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:16:37,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:16:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:16:37,409 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:16:37,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:16:37,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364874096] [2022-11-25 18:16:37,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364874096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:16:37,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:16:37,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:16:37,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318466470] [2022-11-25 18:16:37,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:16:37,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:16:37,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:16:37,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:16:37,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:16:37,450 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 1010 [2022-11-25 18:16:37,452 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 80 transitions, 371 flow. Second operand has 3 states, 3 states have (on average 408.3333333333333) internal successors, (1225), 3 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:16:37,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:16:37,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 1010 [2022-11-25 18:16:37,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:16:42,396 INFO L130 PetriNetUnfolder]: 23796/33799 cut-off events. [2022-11-25 18:16:42,396 INFO L131 PetriNetUnfolder]: For 305/305 co-relation queries the response was YES. [2022-11-25 18:16:42,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68737 conditions, 33799 events. 23796/33799 cut-off events. For 305/305 co-relation queries the response was YES. Maximal size of possible extension queue 1867. Compared 213080 event pairs, 20785 based on Foata normal form. 2/13907 useless extension candidates. Maximal degree in co-relation 41214. Up to 33799 conditions per place. [2022-11-25 18:16:42,566 INFO L137 encePairwiseOnDemand]: 1006/1010 looper letters, 67 selfloop transitions, 1 changer transitions 0/68 dead transitions. [2022-11-25 18:16:42,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 68 transitions, 426 flow [2022-11-25 18:16:42,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:16:42,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:16:42,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1272 transitions. [2022-11-25 18:16:42,571 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4198019801980198 [2022-11-25 18:16:42,571 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1272 transitions. [2022-11-25 18:16:42,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1272 transitions. [2022-11-25 18:16:42,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:16:42,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1272 transitions. [2022-11-25 18:16:42,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 424.0) internal successors, (1272), 3 states have internal predecessors, (1272), 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 18:16:42,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1010.0) internal successors, (4040), 4 states have internal predecessors, (4040), 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 18:16:42,584 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1010.0) internal successors, (4040), 4 states have internal predecessors, (4040), 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 18:16:42,584 INFO L175 Difference]: Start difference. First operand has 61 places, 80 transitions, 371 flow. Second operand 3 states and 1272 transitions. [2022-11-25 18:16:42,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 68 transitions, 426 flow [2022-11-25 18:16:42,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 68 transitions, 396 flow, removed 9 selfloop flow, removed 1 redundant places. [2022-11-25 18:16:42,587 INFO L231 Difference]: Finished difference. Result has 58 places, 68 transitions, 262 flow [2022-11-25 18:16:42,587 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1010, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=58, PETRI_TRANSITIONS=68} [2022-11-25 18:16:42,588 INFO L288 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2022-11-25 18:16:42,588 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 68 transitions, 262 flow [2022-11-25 18:16:42,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 408.3333333333333) internal successors, (1225), 3 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:16:42,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:16:42,590 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2022-11-25 18:16:42,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:16:42,590 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2022-11-25 18:16:42,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:16:42,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1096592531, now seen corresponding path program 2 times [2022-11-25 18:16:42,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:16:42,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048324011] [2022-11-25 18:16:42,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:16:42,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:16:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:16:42,720 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:16:42,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:16:42,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048324011] [2022-11-25 18:16:42,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048324011] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:16:42,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518951557] [2022-11-25 18:16:42,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:16:42,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:16:42,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:16:42,729 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:16:42,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 18:16:42,855 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 18:16:42,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:16:42,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 18:16:42,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:16:42,880 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 18:16:42,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:16:42,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518951557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:16:42,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:16:42,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2022-11-25 18:16:42,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955911864] [2022-11-25 18:16:42,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:16:42,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:16:42,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:16:42,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:16:42,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:16:42,929 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 1010 [2022-11-25 18:16:42,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 68 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 411.0) internal successors, (1233), 3 states have internal predecessors, (1233), 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 18:16:42,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:16:42,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 1010 [2022-11-25 18:16:42,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:16:47,603 INFO L130 PetriNetUnfolder]: 23796/33796 cut-off events. [2022-11-25 18:16:47,604 INFO L131 PetriNetUnfolder]: For 309/309 co-relation queries the response was YES. [2022-11-25 18:16:47,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68703 conditions, 33796 events. 23796/33796 cut-off events. For 309/309 co-relation queries the response was YES. Maximal size of possible extension queue 1867. Compared 213049 event pairs, 20785 based on Foata normal form. 3/13907 useless extension candidates. Maximal degree in co-relation 68691. Up to 33796 conditions per place. [2022-11-25 18:16:47,778 INFO L137 encePairwiseOnDemand]: 1006/1010 looper letters, 64 selfloop transitions, 1 changer transitions 0/65 dead transitions. [2022-11-25 18:16:47,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 65 transitions, 362 flow [2022-11-25 18:16:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:16:47,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:16:47,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1278 transitions. [2022-11-25 18:16:47,783 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42178217821782177 [2022-11-25 18:16:47,783 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1278 transitions. [2022-11-25 18:16:47,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1278 transitions. [2022-11-25 18:16:47,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:16:47,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1278 transitions. [2022-11-25 18:16:47,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.0) internal successors, (1278), 3 states have internal predecessors, (1278), 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 18:16:47,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1010.0) internal successors, (4040), 4 states have internal predecessors, (4040), 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 18:16:47,795 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1010.0) internal successors, (4040), 4 states have internal predecessors, (4040), 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 18:16:47,796 INFO L175 Difference]: Start difference. First operand has 58 places, 68 transitions, 262 flow. Second operand 3 states and 1278 transitions. [2022-11-25 18:16:47,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 65 transitions, 362 flow [2022-11-25 18:16:47,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 65 transitions, 319 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-11-25 18:16:47,799 INFO L231 Difference]: Finished difference. Result has 52 places, 65 transitions, 191 flow [2022-11-25 18:16:47,799 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1010, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=52, PETRI_TRANSITIONS=65} [2022-11-25 18:16:47,801 INFO L288 CegarLoopForPetriNet]: 62 programPoint places, -10 predicate places. [2022-11-25 18:16:47,802 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 65 transitions, 191 flow [2022-11-25 18:16:47,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 411.0) internal successors, (1233), 3 states have internal predecessors, (1233), 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 18:16:47,804 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:16:47,805 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:16:47,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 18:16:48,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10a81491-5c95-453f-a4ec-35068d1edac5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:16:48,011 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2022-11-25 18:16:48,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:16:48,011 INFO L85 PathProgramCache]: Analyzing trace with hash 304516984, now seen corresponding path program 1 times [2022-11-25 18:16:48,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:16:48,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752006570] [2022-11-25 18:16:48,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:16:48,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:16:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:16:48,164 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 18:16:48,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:16:48,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752006570] [2022-11-25 18:16:48,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752006570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:16:48,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:16:48,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:16:48,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226348323] [2022-11-25 18:16:48,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:16:48,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:16:48,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:16:48,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:16:48,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:16:48,233 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 1010 [2022-11-25 18:16:48,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 65 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 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 18:16:48,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:16:48,235 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 1010 [2022-11-25 18:16:48,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:16:52,086 INFO L130 PetriNetUnfolder]: 19037/27040 cut-off events. [2022-11-25 18:16:52,087 INFO L131 PetriNetUnfolder]: For 240/240 co-relation queries the response was YES. [2022-11-25 18:16:52,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54954 conditions, 27040 events. 19037/27040 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 1595. Compared 166353 event pairs, 16628 based on Foata normal form. 1/11121 useless extension candidates. Maximal degree in co-relation 54945. Up to 27032 conditions per place. [2022-11-25 18:16:52,185 INFO L137 encePairwiseOnDemand]: 1003/1010 looper letters, 51 selfloop transitions, 12 changer transitions 0/63 dead transitions. [2022-11-25 18:16:52,185 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 63 transitions, 309 flow [2022-11-25 18:16:52,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:16:52,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:16:52,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1263 transitions. [2022-11-25 18:16:52,191 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4168316831683168 [2022-11-25 18:16:52,191 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1263 transitions. [2022-11-25 18:16:52,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1263 transitions. [2022-11-25 18:16:52,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:16:52,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1263 transitions. [2022-11-25 18:16:52,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 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 18:16:52,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1010.0) internal successors, (4040), 4 states have internal predecessors, (4040), 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 18:16:52,203 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1010.0) internal successors, (4040), 4 states have internal predecessors, (4040), 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 18:16:52,204 INFO L175 Difference]: Start difference. First operand has 52 places, 65 transitions, 191 flow. Second operand 3 states and 1263 transitions. [2022-11-25 18:16:52,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 63 transitions, 309 flow [2022-11-25 18:16:52,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 63 transitions, 308 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:16:52,206 INFO L231 Difference]: Finished difference. Result has 54 places, 63 transitions, 220 flow [2022-11-25 18:16:52,206 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1010, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=54, PETRI_TRANSITIONS=63} [2022-11-25 18:16:52,207 INFO L288 CegarLoopForPetriNet]: 62 programPoint places, -8 predicate places. [2022-11-25 18:16:52,207 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 63 transitions, 220 flow [2022-11-25 18:16:52,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 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 18:16:52,208 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:16:52,209 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:16:52,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:16:52,209 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2022-11-25 18:16:52,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:16:52,210 INFO L85 PathProgramCache]: Analyzing trace with hash -2024327785, now seen corresponding path program 1 times [2022-11-25 18:16:52,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:16:52,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051287751] [2022-11-25 18:16:52,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:16:52,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:16:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:16:52,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 18:16:52,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:16:52,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051287751] [2022-11-25 18:16:52,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051287751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:16:52,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:16:52,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:16:52,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157739166] [2022-11-25 18:16:52,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:16:52,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:16:52,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:16:52,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:16:52,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:16:52,322 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 1010 [2022-11-25 18:16:52,323 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 63 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 417.6666666666667) internal successors, (1253), 3 states have internal predecessors, (1253), 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 18:16:52,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:16:52,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 1010 [2022-11-25 18:16:52,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand