./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro --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 fdecd751bbf3d5ef761eacebee2616261a6cad4ae3645147e0ad096bd1775198 --- 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-8393723 [2022-11-18 20:22:47,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:22:47,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:22:47,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:22:47,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:22:47,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:22:47,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:22:47,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:22:47,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:22:47,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:22:47,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:22:47,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:22:47,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:22:47,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:22:47,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:22:47,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:22:47,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:22:47,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:22:47,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:22:47,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:22:47,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:22:47,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:22:47,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:22:47,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:22:47,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:22:47,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:22:47,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:22:47,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:22:47,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:22:47,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:22:47,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:22:47,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:22:47,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:22:47,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:22:47,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:22:47,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:22:47,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:22:47,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:22:47,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:22:47,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:22:47,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:22:47,854 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:22:47,899 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:22:47,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:22:47,901 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:22:47,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:22:47,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:22:47,902 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:22:47,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:22:47,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:22:47,904 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:22:47,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:22:47,905 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:22:47,906 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:22:47,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:22:47,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:22:47,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:22:47,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:22:47,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:22:47,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:22:47,908 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:22:47,908 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:22:47,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:22:47,908 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:22:47,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:22:47,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:22:47,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:22:47,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:22:47,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:22:47,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:22:47,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:22:47,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:22:47,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:22:47,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:22:47,912 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:22:47,912 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:22:47,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:22:47,912 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_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdecd751bbf3d5ef761eacebee2616261a6cad4ae3645147e0ad096bd1775198 [2022-11-18 20:22:48,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:22:48,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:22:48,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:22:48,267 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:22:48,274 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:22:48,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-18 20:22:48,363 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro/data/db47f0e70/595defe1ee0b4d1dbc0f036e47c94ba1/FLAG581c940ad [2022-11-18 20:22:49,157 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:22:49,164 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-18 20:22:49,179 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro/data/db47f0e70/595defe1ee0b4d1dbc0f036e47c94ba1/FLAG581c940ad [2022-11-18 20:22:49,389 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro/data/db47f0e70/595defe1ee0b4d1dbc0f036e47c94ba1 [2022-11-18 20:22:49,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:22:49,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:22:49,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:22:49,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:22:49,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:22:49,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:22:49" (1/1) ... [2022-11-18 20:22:49,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@922d5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:49, skipping insertion in model container [2022-11-18 20:22:49,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:22:49" (1/1) ... [2022-11-18 20:22:49,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:22:49,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:22:49,784 WARN L234 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_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[996,1009] [2022-11-18 20:22:50,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:22:50,079 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:22:50,103 WARN L234 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_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[996,1009] [2022-11-18 20:22:50,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:22:50,238 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:22:50,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:50 WrapperNode [2022-11-18 20:22:50,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:22:50,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:22:50,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:22:50,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:22:50,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:50" (1/1) ... [2022-11-18 20:22:50,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:50" (1/1) ... [2022-11-18 20:22:50,337 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 115 [2022-11-18 20:22:50,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:22:50,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:22:50,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:22:50,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:22:50,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:50" (1/1) ... [2022-11-18 20:22:50,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:50" (1/1) ... [2022-11-18 20:22:50,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:50" (1/1) ... [2022-11-18 20:22:50,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:50" (1/1) ... [2022-11-18 20:22:50,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:50" (1/1) ... [2022-11-18 20:22:50,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:50" (1/1) ... [2022-11-18 20:22:50,383 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:50" (1/1) ... [2022-11-18 20:22:50,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:50" (1/1) ... [2022-11-18 20:22:50,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:22:50,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:22:50,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:22:50,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:22:50,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:50" (1/1) ... [2022-11-18 20:22:50,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:22:50,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:50,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:50,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:22:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:22:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:22:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:22:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:22:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:22:50,517 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 20:22:50,517 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 20:22:50,518 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 20:22:50,518 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 20:22:50,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:22:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:22:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:22:50,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:22:50,521 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:22:50,712 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:22:50,714 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:22:51,177 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:22:51,384 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:22:51,384 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:22:51,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:22:51 BoogieIcfgContainer [2022-11-18 20:22:51,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:22:51,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:22:51,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:22:51,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:22:51,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:22:49" (1/3) ... [2022-11-18 20:22:51,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0634d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:22:51, skipping insertion in model container [2022-11-18 20:22:51,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:50" (2/3) ... [2022-11-18 20:22:51,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0634d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:22:51, skipping insertion in model container [2022-11-18 20:22:51,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:22:51" (3/3) ... [2022-11-18 20:22:51,418 INFO L112 eAbstractionObserver]: Analyzing ICFG safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-18 20:22:51,427 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:22:51,444 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:22:51,444 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 20:22:51,444 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:22:51,546 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:22:51,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 97 transitions, 204 flow [2022-11-18 20:22:51,697 INFO L130 PetriNetUnfolder]: 2/95 cut-off events. [2022-11-18 20:22:51,697 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:22:51,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 95 events. 2/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2022-11-18 20:22:51,703 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 97 transitions, 204 flow [2022-11-18 20:22:51,709 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 95 transitions, 196 flow [2022-11-18 20:22:51,721 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:22:51,730 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;@511a4b48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:22:51,730 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-18 20:22:51,746 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2022-11-18 20:22:51,746 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:22:51,747 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:22:51,747 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] [2022-11-18 20:22:51,748 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-18 20:22:51,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:51,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1122355236, now seen corresponding path program 1 times [2022-11-18 20:22:51,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:51,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282593900] [2022-11-18 20:22:51,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:51,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:52,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:52,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:52,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282593900] [2022-11-18 20:22:52,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282593900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:52,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:52,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:22:52,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442020217] [2022-11-18 20:22:52,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:52,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:22:52,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:52,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:22:52,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:22:52,323 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 97 [2022-11-18 20:22:52,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 95 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2022-11-18 20:22:52,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:22:52,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 97 [2022-11-18 20:22:52,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:22:52,548 INFO L130 PetriNetUnfolder]: 68/323 cut-off events. [2022-11-18 20:22:52,549 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 20:22:52,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 323 events. 68/323 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1416 event pairs, 30 based on Foata normal form. 16/303 useless extension candidates. Maximal degree in co-relation 422. Up to 73 conditions per place. [2022-11-18 20:22:52,555 INFO L137 encePairwiseOnDemand]: 88/97 looper letters, 19 selfloop transitions, 3 changer transitions 2/101 dead transitions. [2022-11-18 20:22:52,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 101 transitions, 259 flow [2022-11-18 20:22:52,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:22:52,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:22:52,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 269 transitions. [2022-11-18 20:22:52,572 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9243986254295533 [2022-11-18 20:22:52,573 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 269 transitions. [2022-11-18 20:22:52,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 269 transitions. [2022-11-18 20:22:52,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:22:52,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 269 transitions. [2022-11-18 20:22:52,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2022-11-18 20:22:52,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-11-18 20:22:52,588 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-11-18 20:22:52,590 INFO L175 Difference]: Start difference. First operand has 100 places, 95 transitions, 196 flow. Second operand 3 states and 269 transitions. [2022-11-18 20:22:52,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 101 transitions, 259 flow [2022-11-18 20:22:52,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 101 transitions, 256 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:22:52,598 INFO L231 Difference]: Finished difference. Result has 100 places, 92 transitions, 205 flow [2022-11-18 20:22:52,601 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=205, PETRI_PLACES=100, PETRI_TRANSITIONS=92} [2022-11-18 20:22:52,605 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 0 predicate places. [2022-11-18 20:22:52,606 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 92 transitions, 205 flow [2022-11-18 20:22:52,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2022-11-18 20:22:52,606 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:22:52,607 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] [2022-11-18 20:22:52,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:22:52,607 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-18 20:22:52,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:52,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1348379665, now seen corresponding path program 1 times [2022-11-18 20:22:52,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:52,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226289826] [2022-11-18 20:22:52,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:52,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:52,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:52,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:52,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226289826] [2022-11-18 20:22:52,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226289826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:52,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:52,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:22:52,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112304335] [2022-11-18 20:22:52,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:52,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:22:52,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:52,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:22:52,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:22:52,932 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 97 [2022-11-18 20:22:52,932 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 92 transitions, 205 flow. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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) [2022-11-18 20:22:52,932 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:22:52,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 97 [2022-11-18 20:22:52,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:22:53,121 INFO L130 PetriNetUnfolder]: 59/308 cut-off events. [2022-11-18 20:22:53,121 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-18 20:22:53,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 308 events. 59/308 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1246 event pairs, 36 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 433. Up to 61 conditions per place. [2022-11-18 20:22:53,125 INFO L137 encePairwiseOnDemand]: 92/97 looper letters, 17 selfloop transitions, 3 changer transitions 0/97 dead transitions. [2022-11-18 20:22:53,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 97 transitions, 253 flow [2022-11-18 20:22:53,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:22:53,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:22:53,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 338 transitions. [2022-11-18 20:22:53,129 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8711340206185567 [2022-11-18 20:22:53,129 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 338 transitions. [2022-11-18 20:22:53,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 338 transitions. [2022-11-18 20:22:53,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:22:53,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 338 transitions. [2022-11-18 20:22:53,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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) [2022-11-18 20:22:53,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 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) [2022-11-18 20:22:53,135 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 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) [2022-11-18 20:22:53,135 INFO L175 Difference]: Start difference. First operand has 100 places, 92 transitions, 205 flow. Second operand 4 states and 338 transitions. [2022-11-18 20:22:53,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 97 transitions, 253 flow [2022-11-18 20:22:53,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 97 transitions, 250 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:22:53,139 INFO L231 Difference]: Finished difference. Result has 100 places, 90 transitions, 200 flow [2022-11-18 20:22:53,139 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=100, PETRI_TRANSITIONS=90} [2022-11-18 20:22:53,140 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 0 predicate places. [2022-11-18 20:22:53,141 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 90 transitions, 200 flow [2022-11-18 20:22:53,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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) [2022-11-18 20:22:53,141 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:22:53,142 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] [2022-11-18 20:22:53,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:22:53,142 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-18 20:22:53,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:53,143 INFO L85 PathProgramCache]: Analyzing trace with hash 477062804, now seen corresponding path program 1 times [2022-11-18 20:22:53,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:53,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670275754] [2022-11-18 20:22:53,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:53,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:53,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:53,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:53,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670275754] [2022-11-18 20:22:53,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670275754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:53,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:53,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:22:53,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11482096] [2022-11-18 20:22:53,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:53,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:22:53,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:53,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:22:53,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:22:53,363 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 97 [2022-11-18 20:22:53,364 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 90 transitions, 200 flow. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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) [2022-11-18 20:22:53,365 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:22:53,365 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 97 [2022-11-18 20:22:53,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:22:53,509 INFO L130 PetriNetUnfolder]: 55/289 cut-off events. [2022-11-18 20:22:53,509 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-11-18 20:22:53,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 289 events. 55/289 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1137 event pairs, 30 based on Foata normal form. 6/276 useless extension candidates. Maximal degree in co-relation 398. Up to 61 conditions per place. [2022-11-18 20:22:53,511 INFO L137 encePairwiseOnDemand]: 92/97 looper letters, 0 selfloop transitions, 0 changer transitions 95/95 dead transitions. [2022-11-18 20:22:53,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 95 transitions, 244 flow [2022-11-18 20:22:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:22:53,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:22:53,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 336 transitions. [2022-11-18 20:22:53,517 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.865979381443299 [2022-11-18 20:22:53,517 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 336 transitions. [2022-11-18 20:22:53,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 336 transitions. [2022-11-18 20:22:53,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:22:53,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 336 transitions. [2022-11-18 20:22:53,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2022-11-18 20:22:53,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 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) [2022-11-18 20:22:53,525 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 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) [2022-11-18 20:22:53,525 INFO L175 Difference]: Start difference. First operand has 100 places, 90 transitions, 200 flow. Second operand 4 states and 336 transitions. [2022-11-18 20:22:53,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 95 transitions, 244 flow [2022-11-18 20:22:53,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 95 transitions, 237 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:22:53,531 INFO L231 Difference]: Finished difference. Result has 98 places, 0 transitions, 0 flow [2022-11-18 20:22:53,531 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=98, PETRI_TRANSITIONS=0} [2022-11-18 20:22:53,534 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, -2 predicate places. [2022-11-18 20:22:53,534 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 0 transitions, 0 flow [2022-11-18 20:22:53,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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) [2022-11-18 20:22:53,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-18 20:22:53,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-18 20:22:53,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-18 20:22:53,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-18 20:22:53,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-11-18 20:22:53,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-11-18 20:22:53,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-18 20:22:53,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-18 20:22:53,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-18 20:22:53,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-18 20:22:53,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:22:53,548 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-18 20:22:53,557 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:22:53,557 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:22:53,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:22:53 BasicIcfg [2022-11-18 20:22:53,565 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:22:53,567 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:22:53,567 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:22:53,568 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:22:53,568 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:22:51" (3/4) ... [2022-11-18 20:22:53,571 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:22:53,578 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-18 20:22:53,578 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-18 20:22:53,587 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-18 20:22:53,587 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 20:22:53,587 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:22:53,588 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:22:53,645 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:22:53,646 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:22:53,647 INFO L158 Benchmark]: Toolchain (without parser) took 4249.65ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 98.7MB in the beginning and 94.5MB in the end (delta: 4.2MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2022-11-18 20:22:53,647 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 92.3MB. Free memory was 47.7MB in the beginning and 47.6MB in the end (delta: 45.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:22:53,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 839.31ms. Allocated memory is still 132.1MB. Free memory was 98.5MB in the beginning and 95.4MB in the end (delta: 3.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:22:53,648 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.43ms. Allocated memory is still 132.1MB. Free memory was 95.4MB in the beginning and 93.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:22:53,648 INFO L158 Benchmark]: Boogie Preprocessor took 47.90ms. Allocated memory is still 132.1MB. Free memory was 93.0MB in the beginning and 91.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:22:53,649 INFO L158 Benchmark]: RCFGBuilder took 1012.62ms. Allocated memory is still 132.1MB. Free memory was 91.4MB in the beginning and 94.2MB in the end (delta: -2.9MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2022-11-18 20:22:53,649 INFO L158 Benchmark]: TraceAbstraction took 2159.52ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 94.0MB in the beginning and 97.7MB in the end (delta: -3.7MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2022-11-18 20:22:53,650 INFO L158 Benchmark]: Witness Printer took 78.54ms. Allocated memory is still 167.8MB. Free memory was 96.6MB in the beginning and 94.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:22:53,652 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 92.3MB. Free memory was 47.7MB in the beginning and 47.6MB in the end (delta: 45.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 839.31ms. Allocated memory is still 132.1MB. Free memory was 98.5MB in the beginning and 95.4MB in the end (delta: 3.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.43ms. Allocated memory is still 132.1MB. Free memory was 95.4MB in the beginning and 93.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.90ms. Allocated memory is still 132.1MB. Free memory was 93.0MB in the beginning and 91.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1012.62ms. Allocated memory is still 132.1MB. Free memory was 91.4MB in the beginning and 94.2MB in the end (delta: -2.9MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2159.52ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 94.0MB in the beginning and 97.7MB in the end (delta: -3.7MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * Witness Printer took 78.54ms. Allocated memory is still 167.8MB. Free memory was 96.6MB in the beginning and 94.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 759]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 759]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 792]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 792]: 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 5 procedures, 118 locations, 10 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: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 5 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=205occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 20:22:53,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b97fb8-ee5c-4f24-aa4a-dd03deea8b55/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE