./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/test22-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test22-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0ac3f9dde39c1c30daf84e7d2d3f68c4363e658cdbd9aae18974f8ff3d9b4fc7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:59:46,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:59:46,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:59:46,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:59:46,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:59:46,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:59:46,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:59:46,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:59:46,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:59:46,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:59:46,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:59:46,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:59:46,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:59:46,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:59:46,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:59:46,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:59:46,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:59:46,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:59:46,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:59:46,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:59:46,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:59:46,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:59:46,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:59:46,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:59:46,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:59:46,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:59:46,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:59:46,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:59:46,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:59:46,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:59:46,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:59:46,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:59:46,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:59:46,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:59:46,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:59:46,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:59:46,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:59:46,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:59:46,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:59:46,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:59:46,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:59:46,421 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 17:59:46,474 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:59:46,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:59:46,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:59:46,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:59:46,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:59:46,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:59:46,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:59:46,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:59:46,478 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:59:46,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:59:46,480 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:59:46,480 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:59:46,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:59:46,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:59:46,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:59:46,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:59:46,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:59:46,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:59:46,482 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:59:46,482 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:59:46,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:59:46,482 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:59:46,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:59:46,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:59:46,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:59:46,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:59:46,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:59:46,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:59:46,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:59:46,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:59:46,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:59:46,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:59:46,485 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:59:46,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:59:46,485 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:59:46,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:59:46,486 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ac3f9dde39c1c30daf84e7d2d3f68c4363e658cdbd9aae18974f8ff3d9b4fc7 [2022-11-25 17:59:46,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:59:46,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:59:46,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:59:46,863 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:59:46,864 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:59:46,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-regression/test22-2.c [2022-11-25 17:59:50,193 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:59:50,417 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:59:50,417 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/sv-benchmarks/c/ldv-regression/test22-2.c [2022-11-25 17:59:50,426 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/bin/uautomizer-ZsLfNo2U6R/data/af3c7098c/38c6300d0f724cb8b79e8c888718f884/FLAG909bfa3f9 [2022-11-25 17:59:50,457 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/bin/uautomizer-ZsLfNo2U6R/data/af3c7098c/38c6300d0f724cb8b79e8c888718f884 [2022-11-25 17:59:50,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:59:50,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:59:50,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:59:50,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:59:50,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:59:50,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:59:50" (1/1) ... [2022-11-25 17:59:50,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74bade9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:50, skipping insertion in model container [2022-11-25 17:59:50,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:59:50" (1/1) ... [2022-11-25 17:59:50,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:59:50,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:59:50,759 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_09a259c8-98df-4a18-97ad-749ee12b3e22/sv-benchmarks/c/ldv-regression/test22-2.c[1029,1042] [2022-11-25 17:59:50,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:59:50,778 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:59:50,817 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_09a259c8-98df-4a18-97ad-749ee12b3e22/sv-benchmarks/c/ldv-regression/test22-2.c[1029,1042] [2022-11-25 17:59:50,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:59:50,836 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:59:50,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:50 WrapperNode [2022-11-25 17:59:50,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:59:50,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:59:50,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:59:50,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:59:50,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:50" (1/1) ... [2022-11-25 17:59:50,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:50" (1/1) ... [2022-11-25 17:59:50,907 INFO L138 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2022-11-25 17:59:50,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:59:50,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:59:50,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:59:50,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:59:50,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:50" (1/1) ... [2022-11-25 17:59:50,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:50" (1/1) ... [2022-11-25 17:59:50,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:50" (1/1) ... [2022-11-25 17:59:50,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:50" (1/1) ... [2022-11-25 17:59:50,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:50" (1/1) ... [2022-11-25 17:59:50,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:50" (1/1) ... [2022-11-25 17:59:50,958 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:50" (1/1) ... [2022-11-25 17:59:50,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:50" (1/1) ... [2022-11-25 17:59:50,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:59:50,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:59:50,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:59:50,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:59:50,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:50" (1/1) ... [2022-11-25 17:59:50,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:59:50,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:59:51,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:59:51,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:59:51,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:59:51,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:59:51,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:59:51,055 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2022-11-25 17:59:51,055 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2022-11-25 17:59:51,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:59:51,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:59:51,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:59:51,140 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:59:51,142 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:59:51,333 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:59:51,352 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:59:51,352 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:59:51,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:59:51 BoogieIcfgContainer [2022-11-25 17:59:51,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:59:51,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:59:51,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:59:51,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:59:51,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:59:50" (1/3) ... [2022-11-25 17:59:51,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19540e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:59:51, skipping insertion in model container [2022-11-25 17:59:51,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:50" (2/3) ... [2022-11-25 17:59:51,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19540e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:59:51, skipping insertion in model container [2022-11-25 17:59:51,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:59:51" (3/3) ... [2022-11-25 17:59:51,366 INFO L112 eAbstractionObserver]: Analyzing ICFG test22-2.c [2022-11-25 17:59:51,391 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:59:51,391 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 17:59:51,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:59:51,472 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;@341d9e5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:59:51,473 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 17:59:51,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 23 states have (on average 1.391304347826087) internal successors, (32), 27 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:59:51,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 17:59:51,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:59:51,489 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:51,490 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 17:59:51,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:51,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1154484501, now seen corresponding path program 1 times [2022-11-25 17:59:51,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:51,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243336019] [2022-11-25 17:59:51,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:51,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:51,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:59:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:51,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:59:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:51,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:59:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:51,837 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 17:59:51,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:51,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243336019] [2022-11-25 17:59:51,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243336019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:51,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:51,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:59:51,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985341032] [2022-11-25 17:59:51,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:51,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:59:51,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:51,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:59:51,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:59:51,938 INFO L87 Difference]: Start difference. First operand has 32 states, 23 states have (on average 1.391304347826087) internal successors, (32), 27 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:59:52,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:59:52,017 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2022-11-25 17:59:52,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:59:52,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2022-11-25 17:59:52,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:59:52,029 INFO L225 Difference]: With dead ends: 51 [2022-11-25 17:59:52,029 INFO L226 Difference]: Without dead ends: 24 [2022-11-25 17:59:52,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:59:52,036 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:59:52,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:59:52,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-25 17:59:52,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-25 17:59:52,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:59:52,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-11-25 17:59:52,133 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 21 [2022-11-25 17:59:52,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:59:52,134 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-25 17:59:52,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:59:52,135 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-25 17:59:52,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 17:59:52,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:59:52,137 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:52,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:59:52,138 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 17:59:52,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:52,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1154486423, now seen corresponding path program 1 times [2022-11-25 17:59:52,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:52,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156412815] [2022-11-25 17:59:52,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:52,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:59:52,196 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:59:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:59:52,258 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:59:52,259 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:59:52,264 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-25 17:59:52,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-25 17:59:52,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-25 17:59:52,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-25 17:59:52,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:59:52,272 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:59:52,297 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:59:52,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:59:52 BoogieIcfgContainer [2022-11-25 17:59:52,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:59:52,362 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:59:52,363 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:59:52,363 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:59:52,364 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:59:51" (3/4) ... [2022-11-25 17:59:52,366 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 17:59:52,454 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:59:52,454 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:59:52,455 INFO L158 Benchmark]: Toolchain (without parser) took 1991.57ms. Allocated memory is still 148.9MB. Free memory was 104.1MB in the beginning and 101.9MB in the end (delta: 2.2MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2022-11-25 17:59:52,455 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory is still 70.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:59:52,456 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.45ms. Allocated memory is still 148.9MB. Free memory was 103.7MB in the beginning and 93.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:59:52,457 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.50ms. Allocated memory is still 148.9MB. Free memory was 93.2MB in the beginning and 91.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:59:52,457 INFO L158 Benchmark]: Boogie Preprocessor took 56.46ms. Allocated memory is still 148.9MB. Free memory was 91.6MB in the beginning and 90.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:59:52,458 INFO L158 Benchmark]: RCFGBuilder took 386.99ms. Allocated memory is still 148.9MB. Free memory was 90.2MB in the beginning and 78.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:59:52,459 INFO L158 Benchmark]: TraceAbstraction took 1003.73ms. Allocated memory is still 148.9MB. Free memory was 77.3MB in the beginning and 104.8MB in the end (delta: -27.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:59:52,459 INFO L158 Benchmark]: Witness Printer took 91.76ms. Allocated memory is still 148.9MB. Free memory was 104.0MB in the beginning and 101.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:59:52,462 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory is still 70.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 369.45ms. Allocated memory is still 148.9MB. Free memory was 103.7MB in the beginning and 93.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.50ms. Allocated memory is still 148.9MB. Free memory was 93.2MB in the beginning and 91.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.46ms. Allocated memory is still 148.9MB. Free memory was 91.6MB in the beginning and 90.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 386.99ms. Allocated memory is still 148.9MB. Free memory was 90.2MB in the beginning and 78.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1003.73ms. Allocated memory is still 148.9MB. Free memory was 77.3MB in the beginning and 104.8MB in the end (delta: -27.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 91.76ms. Allocated memory is still 148.9MB. Free memory was 104.0MB in the beginning and 101.9MB 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: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 39]: integer overflow possible integer overflow possible We found a FailurePath: [L11] struct dummy d1, d2; VAL [d1={4:0}, d2={5:0}] [L34] CALL init() [L15] d1.a = __VERIFIER_nondet_int() [L16] d1.b = __VERIFIER_nondet_int() [L18] d2.a = __VERIFIER_nondet_int() [L19] d2.b = __VERIFIER_nondet_int() [L34] RET init() [L35] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, get_dummy()={5:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L35] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, get_dummy()={5:0}, pd1={5:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L35] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, get_dummy()={4:0}, pd1={5:0}, pd2={5:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L36] int i = __VERIFIER_nondet_int(); [L37] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L37] EXPR (*pd2).a [L37] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 VAL [(*pd2).a=6, d1={4:0}, d2={5:0}, i=-3, pd1={5:0}, pd1 != 0 && pd1 == pd2 && (*pd2).a > 0=1, pd2={5:0}, pd3={4:0}] [L37] COND TRUE pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L38] int *pa = &pd1->a; [L39] EXPR pd3->a VAL [d1={4:0}, d2={5:0}, i=-3, pa={5:0}, pd1={5:0}, pd2={5:0}, pd3={4:0}, pd3->a=-2147483639] [L39] pd3->a - 10 VAL [d1={4:0}, d2={5:0}, i=-3, pa={5:0}, pd1={5:0}, pd2={5:0}, pd3={4:0}, pd3->a=-2147483639] - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 35 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 9/9 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-25 17:59:52,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a259c8-98df-4a18-97ad-749ee12b3e22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)