./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi006_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi006_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash de3096cf2a7a81c5a5563cf2e9ae3ddf8f4cc1ab1b483fb6503759d4e39a0a81 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:42:28,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:42:28,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:42:28,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:42:28,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:42:28,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:42:28,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:42:28,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:42:28,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:42:28,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:42:28,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:42:28,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:42:28,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:42:28,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:42:28,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:42:29,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:42:29,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:42:29,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:42:29,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:42:29,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:42:29,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:42:29,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:42:29,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:42:29,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:42:29,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:42:29,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:42:29,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:42:29,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:42:29,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:42:29,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:42:29,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:42:29,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:42:29,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:42:29,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:42:29,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:42:29,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:42:29,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:42:29,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:42:29,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:42:29,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:42:29,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:42:29,035 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 10:42:29,063 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:42:29,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:42:29,064 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:42:29,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:42:29,065 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:42:29,066 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:42:29,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:42:29,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:42:29,067 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:42:29,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:42:29,068 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:42:29,068 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:42:29,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:42:29,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:42:29,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:42:29,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:42:29,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:42:29,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:42:29,070 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 10:42:29,071 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:42:29,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:42:29,071 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:42:29,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:42:29,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:42:29,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:42:29,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:42:29,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:42:29,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:42:29,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:42:29,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:42:29,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:42:29,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:42:29,075 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:42:29,075 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:42:29,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:42:29,076 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de3096cf2a7a81c5a5563cf2e9ae3ddf8f4cc1ab1b483fb6503759d4e39a0a81 [2022-11-20 10:42:29,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:42:29,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:42:29,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:42:29,504 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:42:29,505 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:42:29,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/rfi006_power.opt.i [2022-11-20 10:42:32,831 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:42:33,182 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:42:33,183 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/sv-benchmarks/c/pthread-wmm/rfi006_power.opt.i [2022-11-20 10:42:33,201 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/bin/uautomizer-ug76WZFUDN/data/886383482/a5f168ff743849c4b8b98bb304284c1a/FLAG4f0a88529 [2022-11-20 10:42:33,218 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/bin/uautomizer-ug76WZFUDN/data/886383482/a5f168ff743849c4b8b98bb304284c1a [2022-11-20 10:42:33,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:42:33,223 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:42:33,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:42:33,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:42:33,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:42:33,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:42:33" (1/1) ... [2022-11-20 10:42:33,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@157f6b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:33, skipping insertion in model container [2022-11-20 10:42:33,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:42:33" (1/1) ... [2022-11-20 10:42:33,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:42:33,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:42:33,491 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_bc7ac925-3965-46ed-934f-304e6692863c/sv-benchmarks/c/pthread-wmm/rfi006_power.opt.i[993,1006] [2022-11-20 10:42:33,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:42:33,727 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:42:33,748 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_bc7ac925-3965-46ed-934f-304e6692863c/sv-benchmarks/c/pthread-wmm/rfi006_power.opt.i[993,1006] [2022-11-20 10:42:33,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:42:33,938 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:42:33,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:33 WrapperNode [2022-11-20 10:42:33,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:42:33,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:42:33,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:42:33,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:42:33,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:33" (1/1) ... [2022-11-20 10:42:33,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:33" (1/1) ... [2022-11-20 10:42:34,042 INFO L138 Inliner]: procedures = 176, calls = 75, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 179 [2022-11-20 10:42:34,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:42:34,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:42:34,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:42:34,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:42:34,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:33" (1/1) ... [2022-11-20 10:42:34,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:33" (1/1) ... [2022-11-20 10:42:34,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:33" (1/1) ... [2022-11-20 10:42:34,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:33" (1/1) ... [2022-11-20 10:42:34,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:33" (1/1) ... [2022-11-20 10:42:34,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:33" (1/1) ... [2022-11-20 10:42:34,157 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:33" (1/1) ... [2022-11-20 10:42:34,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:33" (1/1) ... [2022-11-20 10:42:34,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:42:34,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:42:34,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:42:34,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:42:34,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:33" (1/1) ... [2022-11-20 10:42:34,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:42:34,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:42:34,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:42:34,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:42:34,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:42:34,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:42:34,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 10:42:34,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:42:34,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:42:34,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:42:34,274 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 10:42:34,274 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 10:42:34,274 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 10:42:34,274 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 10:42:34,274 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 10:42:34,274 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 10:42:34,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:42:34,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 10:42:34,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:42:34,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:42:34,278 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:42:34,528 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:42:34,530 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:42:35,181 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:42:35,701 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:42:35,702 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:42:35,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:42:35 BoogieIcfgContainer [2022-11-20 10:42:35,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:42:35,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:42:35,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:42:35,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:42:35,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:42:33" (1/3) ... [2022-11-20 10:42:35,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4534ba9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:42:35, skipping insertion in model container [2022-11-20 10:42:35,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:33" (2/3) ... [2022-11-20 10:42:35,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4534ba9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:42:35, skipping insertion in model container [2022-11-20 10:42:35,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:42:35" (3/3) ... [2022-11-20 10:42:35,719 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi006_power.opt.i [2022-11-20 10:42:35,740 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:42:35,753 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:42:35,753 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-20 10:42:35,753 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:42:35,856 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 10:42:35,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 136 transitions, 287 flow [2022-11-20 10:42:36,028 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2022-11-20 10:42:36,029 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:42:36,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-11-20 10:42:36,036 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 136 transitions, 287 flow [2022-11-20 10:42:36,045 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 133 transitions, 275 flow [2022-11-20 10:42:36,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:42:36,068 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;@cb497e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:42:36,068 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-20 10:42:36,101 INFO L130 PetriNetUnfolder]: 0/69 cut-off events. [2022-11-20 10:42:36,101 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:42:36,101 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:42:36,103 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:36,104 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:42:36,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:36,112 INFO L85 PathProgramCache]: Analyzing trace with hash -617415750, now seen corresponding path program 1 times [2022-11-20 10:42:36,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:36,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797490934] [2022-11-20 10:42:36,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:36,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:36,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:36,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:36,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797490934] [2022-11-20 10:42:36,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797490934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:36,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:36,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:42:36,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487872622] [2022-11-20 10:42:36,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:36,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:42:36,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:36,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:42:36,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:42:36,759 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2022-11-20 10:42:36,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 133 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:36,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:42:36,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2022-11-20 10:42:36,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:42:37,688 INFO L130 PetriNetUnfolder]: 581/2538 cut-off events. [2022-11-20 10:42:37,688 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-20 10:42:37,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3503 conditions, 2538 events. 581/2538 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 23106 event pairs, 393 based on Foata normal form. 133/2292 useless extension candidates. Maximal degree in co-relation 3432. Up to 798 conditions per place. [2022-11-20 10:42:37,711 INFO L137 encePairwiseOnDemand]: 124/136 looper letters, 28 selfloop transitions, 4 changer transitions 0/142 dead transitions. [2022-11-20 10:42:37,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 142 transitions, 363 flow [2022-11-20 10:42:37,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:42:37,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:42:37,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 381 transitions. [2022-11-20 10:42:37,736 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9338235294117647 [2022-11-20 10:42:37,737 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 381 transitions. [2022-11-20 10:42:37,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 381 transitions. [2022-11-20 10:42:37,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:42:37,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 381 transitions. [2022-11-20 10:42:37,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:37,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:37,759 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:37,761 INFO L175 Difference]: Start difference. First operand has 141 places, 133 transitions, 275 flow. Second operand 3 states and 381 transitions. [2022-11-20 10:42:37,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 142 transitions, 363 flow [2022-11-20 10:42:37,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 142 transitions, 358 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 10:42:37,770 INFO L231 Difference]: Finished difference. Result has 140 places, 133 transitions, 302 flow [2022-11-20 10:42:37,773 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=302, PETRI_PLACES=140, PETRI_TRANSITIONS=133} [2022-11-20 10:42:37,778 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, -1 predicate places. [2022-11-20 10:42:37,779 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 133 transitions, 302 flow [2022-11-20 10:42:37,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:37,780 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:42:37,780 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:37,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:42:37,782 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:42:37,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:37,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1829484380, now seen corresponding path program 1 times [2022-11-20 10:42:37,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:37,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504399929] [2022-11-20 10:42:37,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:37,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:38,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:38,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:38,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504399929] [2022-11-20 10:42:38,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504399929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:38,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:38,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:42:38,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939715130] [2022-11-20 10:42:38,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:38,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:42:38,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:38,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:42:38,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:42:38,084 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2022-11-20 10:42:38,085 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 133 transitions, 302 flow. Second operand has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:38,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:42:38,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2022-11-20 10:42:38,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:42:38,597 INFO L130 PetriNetUnfolder]: 415/1203 cut-off events. [2022-11-20 10:42:38,597 INFO L131 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2022-11-20 10:42:38,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2254 conditions, 1203 events. 415/1203 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 8192 event pairs, 86 based on Foata normal form. 0/1064 useless extension candidates. Maximal degree in co-relation 2183. Up to 384 conditions per place. [2022-11-20 10:42:38,636 INFO L137 encePairwiseOnDemand]: 126/136 looper letters, 33 selfloop transitions, 10 changer transitions 3/156 dead transitions. [2022-11-20 10:42:38,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 156 transitions, 458 flow [2022-11-20 10:42:38,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:42:38,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 10:42:38,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 501 transitions. [2022-11-20 10:42:38,641 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9209558823529411 [2022-11-20 10:42:38,641 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 501 transitions. [2022-11-20 10:42:38,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 501 transitions. [2022-11-20 10:42:38,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:42:38,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 501 transitions. [2022-11-20 10:42:38,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 125.25) internal successors, (501), 4 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:38,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:38,650 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:38,650 INFO L175 Difference]: Start difference. First operand has 140 places, 133 transitions, 302 flow. Second operand 4 states and 501 transitions. [2022-11-20 10:42:38,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 156 transitions, 458 flow [2022-11-20 10:42:38,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 156 transitions, 454 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:42:38,664 INFO L231 Difference]: Finished difference. Result has 144 places, 136 transitions, 358 flow [2022-11-20 10:42:38,665 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=358, PETRI_PLACES=144, PETRI_TRANSITIONS=136} [2022-11-20 10:42:38,666 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 3 predicate places. [2022-11-20 10:42:38,667 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 136 transitions, 358 flow [2022-11-20 10:42:38,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:38,667 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:42:38,668 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:38,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:42:38,668 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:42:38,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:38,669 INFO L85 PathProgramCache]: Analyzing trace with hash -359396395, now seen corresponding path program 1 times [2022-11-20 10:42:38,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:38,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985204640] [2022-11-20 10:42:38,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:38,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:38,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:38,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:38,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985204640] [2022-11-20 10:42:38,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985204640] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:38,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:38,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:42:38,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058599360] [2022-11-20 10:42:38,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:38,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:42:38,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:38,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:42:38,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:42:38,966 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2022-11-20 10:42:38,967 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 136 transitions, 358 flow. Second operand has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:38,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:42:38,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2022-11-20 10:42:38,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:42:39,371 INFO L130 PetriNetUnfolder]: 277/935 cut-off events. [2022-11-20 10:42:39,371 INFO L131 PetriNetUnfolder]: For 470/470 co-relation queries the response was YES. [2022-11-20 10:42:39,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1747 conditions, 935 events. 277/935 cut-off events. For 470/470 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5832 event pairs, 74 based on Foata normal form. 70/972 useless extension candidates. Maximal degree in co-relation 1673. Up to 313 conditions per place. [2022-11-20 10:42:39,381 INFO L137 encePairwiseOnDemand]: 129/136 looper letters, 25 selfloop transitions, 4 changer transitions 0/139 dead transitions. [2022-11-20 10:42:39,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 139 transitions, 396 flow [2022-11-20 10:42:39,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:42:39,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 10:42:39,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 484 transitions. [2022-11-20 10:42:39,390 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8897058823529411 [2022-11-20 10:42:39,390 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 484 transitions. [2022-11-20 10:42:39,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 484 transitions. [2022-11-20 10:42:39,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:42:39,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 484 transitions. [2022-11-20 10:42:39,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:39,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:39,395 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:39,396 INFO L175 Difference]: Start difference. First operand has 144 places, 136 transitions, 358 flow. Second operand 4 states and 484 transitions. [2022-11-20 10:42:39,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 139 transitions, 396 flow [2022-11-20 10:42:39,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 139 transitions, 378 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-20 10:42:39,410 INFO L231 Difference]: Finished difference. Result has 141 places, 130 transitions, 306 flow [2022-11-20 10:42:39,410 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=306, PETRI_PLACES=141, PETRI_TRANSITIONS=130} [2022-11-20 10:42:39,413 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 0 predicate places. [2022-11-20 10:42:39,413 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 130 transitions, 306 flow [2022-11-20 10:42:39,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:39,414 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:42:39,415 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:39,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:42:39,415 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:42:39,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:39,416 INFO L85 PathProgramCache]: Analyzing trace with hash -49298689, now seen corresponding path program 1 times [2022-11-20 10:42:39,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:39,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235405418] [2022-11-20 10:42:39,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:39,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:39,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:39,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:39,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235405418] [2022-11-20 10:42:39,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235405418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:39,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:39,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:42:39,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965041168] [2022-11-20 10:42:39,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:39,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:42:39,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:39,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:42:39,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:42:39,781 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2022-11-20 10:42:39,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 130 transitions, 306 flow. Second operand has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:39,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:42:39,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2022-11-20 10:42:39,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:42:40,155 INFO L130 PetriNetUnfolder]: 268/914 cut-off events. [2022-11-20 10:42:40,155 INFO L131 PetriNetUnfolder]: For 366/366 co-relation queries the response was YES. [2022-11-20 10:42:40,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1633 conditions, 914 events. 268/914 cut-off events. For 366/366 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5641 event pairs, 74 based on Foata normal form. 12/893 useless extension candidates. Maximal degree in co-relation 1560. Up to 196 conditions per place. [2022-11-20 10:42:40,161 INFO L137 encePairwiseOnDemand]: 129/136 looper letters, 0 selfloop transitions, 0 changer transitions 144/144 dead transitions. [2022-11-20 10:42:40,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 144 transitions, 396 flow [2022-11-20 10:42:40,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:42:40,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 10:42:40,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 602 transitions. [2022-11-20 10:42:40,165 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8852941176470588 [2022-11-20 10:42:40,166 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 602 transitions. [2022-11-20 10:42:40,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 602 transitions. [2022-11-20 10:42:40,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:42:40,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 602 transitions. [2022-11-20 10:42:40,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:40,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:40,177 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:40,178 INFO L175 Difference]: Start difference. First operand has 141 places, 130 transitions, 306 flow. Second operand 5 states and 602 transitions. [2022-11-20 10:42:40,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 144 transitions, 396 flow [2022-11-20 10:42:40,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 144 transitions, 381 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:42:40,188 INFO L231 Difference]: Finished difference. Result has 138 places, 0 transitions, 0 flow [2022-11-20 10:42:40,188 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=138, PETRI_TRANSITIONS=0} [2022-11-20 10:42:40,190 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, -3 predicate places. [2022-11-20 10:42:40,191 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 0 transitions, 0 flow [2022-11-20 10:42:40,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:42:40,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-20 10:42:40,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-20 10:42:40,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-20 10:42:40,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-20 10:42:40,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-20 10:42:40,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-20 10:42:40,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-20 10:42:40,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-20 10:42:40,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-20 10:42:40,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-20 10:42:40,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-20 10:42:40,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-20 10:42:40,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-20 10:42:40,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-20 10:42:40,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-20 10:42:40,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:42:40,203 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-20 10:42:40,211 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 10:42:40,212 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:42:40,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:42:40 BasicIcfg [2022-11-20 10:42:40,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:42:40,226 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:42:40,226 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:42:40,226 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:42:40,227 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:42:35" (3/4) ... [2022-11-20 10:42:40,229 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 10:42:40,235 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-20 10:42:40,236 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-20 10:42:40,236 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-20 10:42:40,244 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2022-11-20 10:42:40,245 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-20 10:42:40,245 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 10:42:40,246 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:42:40,314 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:42:40,314 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:42:40,315 INFO L158 Benchmark]: Toolchain (without parser) took 7091.90ms. Allocated memory was 163.6MB in the beginning and 203.4MB in the end (delta: 39.8MB). Free memory was 121.7MB in the beginning and 80.6MB in the end (delta: 41.1MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB. [2022-11-20 10:42:40,315 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 83.1MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:42:40,315 INFO L158 Benchmark]: CACSL2BoogieTranslator took 715.43ms. Allocated memory is still 163.6MB. Free memory was 121.3MB in the beginning and 97.0MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-20 10:42:40,316 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.15ms. Allocated memory is still 163.6MB. Free memory was 97.0MB in the beginning and 94.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 10:42:40,317 INFO L158 Benchmark]: Boogie Preprocessor took 130.16ms. Allocated memory is still 163.6MB. Free memory was 94.0MB in the beginning and 134.3MB in the end (delta: -40.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-11-20 10:42:40,317 INFO L158 Benchmark]: RCFGBuilder took 1525.62ms. Allocated memory is still 163.6MB. Free memory was 134.3MB in the beginning and 118.9MB in the end (delta: 15.5MB). Peak memory consumption was 71.0MB. Max. memory is 16.1GB. [2022-11-20 10:42:40,317 INFO L158 Benchmark]: TraceAbstraction took 4515.65ms. Allocated memory was 163.6MB in the beginning and 203.4MB in the end (delta: 39.8MB). Free memory was 118.9MB in the beginning and 83.7MB in the end (delta: 35.2MB). Peak memory consumption was 112.7MB. Max. memory is 16.1GB. [2022-11-20 10:42:40,318 INFO L158 Benchmark]: Witness Printer took 88.64ms. Allocated memory is still 203.4MB. Free memory was 83.7MB in the beginning and 80.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 10:42:40,320 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 83.1MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 715.43ms. Allocated memory is still 163.6MB. Free memory was 121.3MB in the beginning and 97.0MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.15ms. Allocated memory is still 163.6MB. Free memory was 97.0MB in the beginning and 94.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 130.16ms. Allocated memory is still 163.6MB. Free memory was 94.0MB in the beginning and 134.3MB in the end (delta: -40.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * RCFGBuilder took 1525.62ms. Allocated memory is still 163.6MB. Free memory was 134.3MB in the beginning and 118.9MB in the end (delta: 15.5MB). Peak memory consumption was 71.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4515.65ms. Allocated memory was 163.6MB in the beginning and 203.4MB in the end (delta: 39.8MB). Free memory was 118.9MB in the beginning and 83.7MB in the end (delta: 35.2MB). Peak memory consumption was 112.7MB. Max. memory is 16.1GB. * Witness Printer took 88.64ms. Allocated memory is still 203.4MB. Free memory was 83.7MB in the beginning and 80.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 842]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 842]: 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, 166 locations, 15 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: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 178 IncrementalHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 10 mSDtfsCounter, 178 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=358occurred in iteration=2, InterpolantAutomatonStates: 16, 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, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 311 NumberOfCodeBlocks, 311 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 307 ConstructedInterpolants, 0 QuantifiedInterpolants, 857 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 10:42:40,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc7ac925-3965-46ed-934f-304e6692863c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE