./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8 --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 b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b --- 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-e04fb08 [2022-11-16 11:25:27,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:25:27,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:25:27,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:25:27,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:25:27,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:25:27,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:25:27,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:25:27,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:25:27,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:25:27,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:25:27,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:25:27,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:25:27,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:25:27,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:25:27,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:25:27,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:25:27,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:25:27,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:25:27,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:25:27,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:25:27,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:25:27,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:25:27,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:25:27,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:25:27,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:25:27,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:25:27,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:25:27,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:25:27,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:25:27,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:25:27,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:25:27,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:25:27,937 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:25:27,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:25:27,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:25:27,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:25:27,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:25:27,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:25:27,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:25:27,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:25:27,943 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:25:27,966 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:25:27,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:25:27,967 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:25:27,967 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:25:27,968 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:25:27,968 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:25:27,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:25:27,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:25:27,969 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:25:27,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:25:27,970 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:25:27,970 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:25:27,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:25:27,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:25:27,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:25:27,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:25:27,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:25:27,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:25:27,971 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:25:27,972 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:25:27,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:25:27,972 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:25:27,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:25:27,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:25:27,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:25:27,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:25:27,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:25:27,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:25:27,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:25:27,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:25:27,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:25:27,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:25:27,974 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:25:27,975 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:25:27,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:25:27,975 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_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b [2022-11-16 11:25:28,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:25:28,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:25:28,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:25:28,230 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:25:28,231 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:25:28,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2022-11-16 11:25:28,311 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/data/ca16b6565/7414173ce29f4c0e8c0c65549eed044e/FLAG5540629db [2022-11-16 11:25:29,002 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:25:29,014 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2022-11-16 11:25:29,031 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/data/ca16b6565/7414173ce29f4c0e8c0c65549eed044e/FLAG5540629db [2022-11-16 11:25:29,230 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/data/ca16b6565/7414173ce29f4c0e8c0c65549eed044e [2022-11-16 11:25:29,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:25:29,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:25:29,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:25:29,241 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:25:29,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:25:29,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:25:29" (1/1) ... [2022-11-16 11:25:29,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749c8607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:29, skipping insertion in model container [2022-11-16 11:25:29,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:25:29" (1/1) ... [2022-11-16 11:25:29,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:25:29,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:25:30,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:25:30,174 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:25:30,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:25:30,333 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:25:30,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:30 WrapperNode [2022-11-16 11:25:30,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:25:30,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:25:30,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:25:30,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:25:30,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:30" (1/1) ... [2022-11-16 11:25:30,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:30" (1/1) ... [2022-11-16 11:25:30,441 INFO L138 Inliner]: procedures = 371, calls = 42, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 172 [2022-11-16 11:25:30,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:25:30,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:25:30,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:25:30,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:25:30,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:30" (1/1) ... [2022-11-16 11:25:30,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:30" (1/1) ... [2022-11-16 11:25:30,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:30" (1/1) ... [2022-11-16 11:25:30,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:30" (1/1) ... [2022-11-16 11:25:30,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:30" (1/1) ... [2022-11-16 11:25:30,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:30" (1/1) ... [2022-11-16 11:25:30,499 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:30" (1/1) ... [2022-11-16 11:25:30,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:30" (1/1) ... [2022-11-16 11:25:30,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:25:30,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:25:30,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:25:30,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:25:30,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:30" (1/1) ... [2022-11-16 11:25:30,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:25:30,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:25:30,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:25:30,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:25:30,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:25:30,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:25:30,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:25:30,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:25:30,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:25:30,595 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:25:30,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:25:30,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:25:30,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:25:30,596 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:25:30,596 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:25:30,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:25:30,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:25:30,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:25:30,598 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:25:30,759 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:25:30,761 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:25:31,312 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:25:31,322 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:25:31,323 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:25:31,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:25:31 BoogieIcfgContainer [2022-11-16 11:25:31,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:25:31,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:25:31,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:25:31,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:25:31,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:25:29" (1/3) ... [2022-11-16 11:25:31,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f4d3762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:25:31, skipping insertion in model container [2022-11-16 11:25:31,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:30" (2/3) ... [2022-11-16 11:25:31,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f4d3762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:25:31, skipping insertion in model container [2022-11-16 11:25:31,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:25:31" (3/3) ... [2022-11-16 11:25:31,351 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_13-arraycollapse_nr.i [2022-11-16 11:25:31,361 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:25:31,371 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:25:31,372 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 11:25:31,372 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:25:31,491 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:25:31,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 221 transitions, 447 flow [2022-11-16 11:25:31,619 INFO L130 PetriNetUnfolder]: 5/220 cut-off events. [2022-11-16 11:25:31,620 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:25:31,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 220 events. 5/220 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 151 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 156. Up to 2 conditions per place. [2022-11-16 11:25:31,625 INFO L82 GeneralOperation]: Start removeDead. Operand has 220 places, 221 transitions, 447 flow [2022-11-16 11:25:31,629 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 71 transitions, 142 flow [2022-11-16 11:25:31,639 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:25:31,645 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;@147e34d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:25:31,646 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-16 11:25:31,664 INFO L130 PetriNetUnfolder]: 0/65 cut-off events. [2022-11-16 11:25:31,665 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:25:31,665 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:31,666 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:31,666 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:25:31,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:31,672 INFO L85 PathProgramCache]: Analyzing trace with hash -144304582, now seen corresponding path program 1 times [2022-11-16 11:25:31,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:31,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157695648] [2022-11-16 11:25:31,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:31,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:32,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:32,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:32,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157695648] [2022-11-16 11:25:32,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157695648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:32,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:32,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:25:32,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785562621] [2022-11-16 11:25:32,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:32,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:25:32,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:32,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:25:32,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:25:32,340 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 221 [2022-11-16 11:25:32,347 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 71 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:32,348 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:25:32,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 221 [2022-11-16 11:25:32,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:25:32,477 INFO L130 PetriNetUnfolder]: 1/120 cut-off events. [2022-11-16 11:25:32,477 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:25:32,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 120 events. 1/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2022-11-16 11:25:32,481 INFO L137 encePairwiseOnDemand]: 215/221 looper letters, 18 selfloop transitions, 4 changer transitions 0/80 dead transitions. [2022-11-16 11:25:32,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 80 transitions, 204 flow [2022-11-16 11:25:32,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:25:32,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:25:32,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1034 transitions. [2022-11-16 11:25:32,504 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9357466063348416 [2022-11-16 11:25:32,505 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1034 transitions. [2022-11-16 11:25:32,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1034 transitions. [2022-11-16 11:25:32,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:25:32,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1034 transitions. [2022-11-16 11:25:32,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 206.8) internal successors, (1034), 5 states have internal predecessors, (1034), 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) [2022-11-16 11:25:32,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 221.0) internal successors, (1326), 6 states have internal predecessors, (1326), 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) [2022-11-16 11:25:32,534 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 221.0) internal successors, (1326), 6 states have internal predecessors, (1326), 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) [2022-11-16 11:25:32,536 INFO L175 Difference]: Start difference. First operand has 71 places, 71 transitions, 142 flow. Second operand 5 states and 1034 transitions. [2022-11-16 11:25:32,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 80 transitions, 204 flow [2022-11-16 11:25:32,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 80 transitions, 204 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:25:32,548 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 172 flow [2022-11-16 11:25:32,550 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=172, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2022-11-16 11:25:32,555 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 7 predicate places. [2022-11-16 11:25:32,555 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 172 flow [2022-11-16 11:25:32,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:32,557 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:32,558 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:32,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:25:32,558 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:25:32,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:32,560 INFO L85 PathProgramCache]: Analyzing trace with hash -989371375, now seen corresponding path program 1 times [2022-11-16 11:25:32,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:32,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306560518] [2022-11-16 11:25:32,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:32,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:32,870 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:25:32,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:32,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306560518] [2022-11-16 11:25:32,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306560518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:32,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:32,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:25:32,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661901645] [2022-11-16 11:25:32,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:32,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:25:32,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:32,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:25:32,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:25:32,878 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 221 [2022-11-16 11:25:32,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 206.25) internal successors, (825), 4 states have internal predecessors, (825), 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) [2022-11-16 11:25:32,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:25:32,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 221 [2022-11-16 11:25:32,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:25:32,955 INFO L130 PetriNetUnfolder]: 1/119 cut-off events. [2022-11-16 11:25:32,955 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 11:25:32,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 119 events. 1/119 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/120 useless extension candidates. Maximal degree in co-relation 64. Up to 9 conditions per place. [2022-11-16 11:25:32,957 INFO L137 encePairwiseOnDemand]: 215/221 looper letters, 8 selfloop transitions, 8 changer transitions 0/74 dead transitions. [2022-11-16 11:25:32,957 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 74 transitions, 202 flow [2022-11-16 11:25:32,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:25:32,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:25:32,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1024 transitions. [2022-11-16 11:25:32,961 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9266968325791856 [2022-11-16 11:25:32,961 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1024 transitions. [2022-11-16 11:25:32,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1024 transitions. [2022-11-16 11:25:32,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:25:32,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1024 transitions. [2022-11-16 11:25:32,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 204.8) internal successors, (1024), 5 states have internal predecessors, (1024), 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) [2022-11-16 11:25:32,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 221.0) internal successors, (1326), 6 states have internal predecessors, (1326), 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) [2022-11-16 11:25:32,968 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 221.0) internal successors, (1326), 6 states have internal predecessors, (1326), 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) [2022-11-16 11:25:32,968 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 172 flow. Second operand 5 states and 1024 transitions. [2022-11-16 11:25:32,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 74 transitions, 202 flow [2022-11-16 11:25:32,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 74 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:25:32,973 INFO L231 Difference]: Finished difference. Result has 81 places, 74 transitions, 190 flow [2022-11-16 11:25:32,973 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=190, PETRI_PLACES=81, PETRI_TRANSITIONS=74} [2022-11-16 11:25:32,974 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 10 predicate places. [2022-11-16 11:25:32,974 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 74 transitions, 190 flow [2022-11-16 11:25:32,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 206.25) internal successors, (825), 4 states have internal predecessors, (825), 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) [2022-11-16 11:25:32,975 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:32,976 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:32,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:25:32,976 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:25:32,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:32,977 INFO L85 PathProgramCache]: Analyzing trace with hash -605741245, now seen corresponding path program 1 times [2022-11-16 11:25:32,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:32,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610047941] [2022-11-16 11:25:32,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:32,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:33,354 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:33,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:33,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610047941] [2022-11-16 11:25:33,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610047941] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:25:33,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998050038] [2022-11-16 11:25:33,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:33,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:25:33,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:25:33,369 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:25:33,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:25:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:33,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:25:33,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:25:33,951 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:33,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:25:33,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998050038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:33,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:25:33,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 11:25:33,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458185436] [2022-11-16 11:25:33,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:33,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:25:33,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:33,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:25:33,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:25:33,959 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 221 [2022-11-16 11:25:33,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 74 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 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) [2022-11-16 11:25:33,961 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:25:33,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 221 [2022-11-16 11:25:33,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:25:34,043 INFO L130 PetriNetUnfolder]: 1/118 cut-off events. [2022-11-16 11:25:34,044 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-16 11:25:34,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 118 events. 1/118 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 1/119 useless extension candidates. Maximal degree in co-relation 12. Up to 6 conditions per place. [2022-11-16 11:25:34,044 INFO L137 encePairwiseOnDemand]: 216/221 looper letters, 0 selfloop transitions, 0 changer transitions 78/78 dead transitions. [2022-11-16 11:25:34,044 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 78 transitions, 236 flow [2022-11-16 11:25:34,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:25:34,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:25:34,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1435 transitions. [2022-11-16 11:25:34,048 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9276018099547512 [2022-11-16 11:25:34,048 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1435 transitions. [2022-11-16 11:25:34,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1435 transitions. [2022-11-16 11:25:34,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:25:34,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1435 transitions. [2022-11-16 11:25:34,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 205.0) internal successors, (1435), 7 states have internal predecessors, (1435), 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) [2022-11-16 11:25:34,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 221.0) internal successors, (1768), 8 states have internal predecessors, (1768), 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) [2022-11-16 11:25:34,057 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 221.0) internal successors, (1768), 8 states have internal predecessors, (1768), 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) [2022-11-16 11:25:34,057 INFO L175 Difference]: Start difference. First operand has 81 places, 74 transitions, 190 flow. Second operand 7 states and 1435 transitions. [2022-11-16 11:25:34,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 78 transitions, 236 flow [2022-11-16 11:25:34,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 78 transitions, 224 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:25:34,089 INFO L231 Difference]: Finished difference. Result has 83 places, 0 transitions, 0 flow [2022-11-16 11:25:34,089 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=83, PETRI_TRANSITIONS=0} [2022-11-16 11:25:34,090 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 12 predicate places. [2022-11-16 11:25:34,090 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 0 transitions, 0 flow [2022-11-16 11:25:34,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 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) [2022-11-16 11:25:34,094 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 3 remaining) [2022-11-16 11:25:34,094 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 3 remaining) [2022-11-16 11:25:34,094 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-11-16 11:25:34,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:25:34,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:25:34,302 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-16 11:25:34,306 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:25:34,306 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:25:34,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:25:34 BasicIcfg [2022-11-16 11:25:34,312 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:25:34,312 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:25:34,312 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:25:34,313 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:25:34,313 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:25:31" (3/4) ... [2022-11-16 11:25:34,316 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:25:34,323 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-16 11:25:34,330 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-16 11:25:34,330 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-16 11:25:34,331 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:25:34,331 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:25:34,399 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:25:34,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:25:34,400 INFO L158 Benchmark]: Toolchain (without parser) took 5163.21ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 104.4MB in the beginning and 144.2MB in the end (delta: -39.7MB). Peak memory consumption was 916.7kB. Max. memory is 16.1GB. [2022-11-16 11:25:34,401 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 92.3MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 44.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:25:34,401 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1094.15ms. Allocated memory is still 138.4MB. Free memory was 104.4MB in the beginning and 85.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-16 11:25:34,401 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.28ms. Allocated memory is still 138.4MB. Free memory was 85.6MB in the beginning and 82.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:25:34,401 INFO L158 Benchmark]: Boogie Preprocessor took 63.90ms. Allocated memory is still 138.4MB. Free memory was 82.6MB in the beginning and 80.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:25:34,402 INFO L158 Benchmark]: RCFGBuilder took 818.52ms. Allocated memory is still 138.4MB. Free memory was 80.2MB in the beginning and 55.2MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-16 11:25:34,403 INFO L158 Benchmark]: TraceAbstraction took 2972.62ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 113.3MB in the beginning and 147.3MB in the end (delta: -34.0MB). Peak memory consumption was 108.3MB. Max. memory is 16.1GB. [2022-11-16 11:25:34,404 INFO L158 Benchmark]: Witness Printer took 87.44ms. Allocated memory is still 180.4MB. Free memory was 147.3MB in the beginning and 144.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:25:34,409 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 92.3MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 44.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1094.15ms. Allocated memory is still 138.4MB. Free memory was 104.4MB in the beginning and 85.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.28ms. Allocated memory is still 138.4MB. Free memory was 85.6MB in the beginning and 82.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.90ms. Allocated memory is still 138.4MB. Free memory was 82.6MB in the beginning and 80.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 818.52ms. Allocated memory is still 138.4MB. Free memory was 80.2MB in the beginning and 55.2MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2972.62ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 113.3MB in the beginning and 147.3MB in the end (delta: -34.0MB). Peak memory consumption was 108.3MB. Max. memory is 16.1GB. * Witness Printer took 87.44ms. Allocated memory is still 180.4MB. Free memory was 147.3MB in the beginning and 144.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1254]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1254]: 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 3 procedures, 262 locations, 3 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: 2.8s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 95 IncrementalHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 12 mSDtfsCounter, 95 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 132 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=2, InterpolantAutomatonStates: 17, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 413 NumberOfCodeBlocks, 413 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 409 ConstructedInterpolants, 0 QuantifiedInterpolants, 975 SizeOfPredicates, 3 NumberOfNonLiveVariables, 441 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 93/140 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:25:34,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4446e4-fd44-4846-abda-aa8dd1bcffe7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE