./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/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_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/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 64bit --witnessprinter.graph.data.programhash ee0ccea6b90e9b6a2f2fc862a3a7704844534359e41607705cde2a5dfc759de7 --- 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 15:40:16,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:40:16,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:40:16,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:40:16,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:40:16,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:40:16,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:40:16,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:40:16,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:40:16,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:40:16,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:40:16,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:40:16,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:40:16,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:40:16,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:40:16,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:40:16,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:40:16,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:40:16,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:40:16,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:40:16,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:40:16,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:40:16,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:40:16,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:40:16,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:40:16,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:40:16,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:40:16,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:40:16,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:40:16,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:40:16,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:40:16,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:40:16,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:40:16,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:40:16,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:40:16,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:40:16,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:40:16,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:40:16,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:40:16,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:40:16,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:40:16,665 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 15:40:16,688 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:40:16,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:40:16,689 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:40:16,689 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:40:16,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:40:16,690 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:40:16,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:40:16,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:40:16,691 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:40:16,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:40:16,691 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:40:16,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:40:16,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:40:16,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:40:16,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:40:16,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:40:16,693 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:40:16,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:40:16,693 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:40:16,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:40:16,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:40:16,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:40:16,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:40:16,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:40:16,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:40:16,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:40:16,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:40:16,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:40:16,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:40:16,696 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:40:16,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:40:16,696 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:40:16,696 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:40:16,696 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_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee0ccea6b90e9b6a2f2fc862a3a7704844534359e41607705cde2a5dfc759de7 [2022-11-25 15:40:17,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:40:17,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:40:17,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:40:17,041 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:40:17,041 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:40:17,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10.c [2022-11-25 15:40:20,184 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:40:20,381 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:40:20,381 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10.c [2022-11-25 15:40:20,388 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/bin/uautomizer-ZsLfNo2U6R/data/356c973c3/d5347b9e17464e5d96c7013a77bb88d8/FLAG90a2c0e80 [2022-11-25 15:40:20,403 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/bin/uautomizer-ZsLfNo2U6R/data/356c973c3/d5347b9e17464e5d96c7013a77bb88d8 [2022-11-25 15:40:20,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:40:20,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:40:20,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:40:20,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:40:20,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:40:20,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:40:20" (1/1) ... [2022-11-25 15:40:20,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fec71d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:40:20, skipping insertion in model container [2022-11-25 15:40:20,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:40:20" (1/1) ... [2022-11-25 15:40:20,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:40:20,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:40:20,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:40:20,615 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:40:20,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:40:20,643 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:40:20,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:40:20 WrapperNode [2022-11-25 15:40:20,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:40:20,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:40:20,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:40:20,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:40:20,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:40:20" (1/1) ... [2022-11-25 15:40:20,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:40:20" (1/1) ... [2022-11-25 15:40:20,673 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-11-25 15:40:20,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:40:20,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:40:20,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:40:20,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:40:20,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:40:20" (1/1) ... [2022-11-25 15:40:20,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:40:20" (1/1) ... [2022-11-25 15:40:20,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:40:20" (1/1) ... [2022-11-25 15:40:20,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:40:20" (1/1) ... [2022-11-25 15:40:20,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:40:20" (1/1) ... [2022-11-25 15:40:20,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:40:20" (1/1) ... [2022-11-25 15:40:20,695 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:40:20" (1/1) ... [2022-11-25 15:40:20,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:40:20" (1/1) ... [2022-11-25 15:40:20,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:40:20,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:40:20,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:40:20,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:40:20,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:40:20" (1/1) ... [2022-11-25 15:40:20,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:40:20,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:40:20,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:40:20,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:40:20,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:40:20,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:40:20,867 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:40:20,870 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:40:21,014 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:40:21,023 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:40:21,026 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 15:40:21,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:40:21 BoogieIcfgContainer [2022-11-25 15:40:21,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:40:21,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:40:21,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:40:21,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:40:21,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:40:20" (1/3) ... [2022-11-25 15:40:21,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270d9163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:40:21, skipping insertion in model container [2022-11-25 15:40:21,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:40:20" (2/3) ... [2022-11-25 15:40:21,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270d9163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:40:21, skipping insertion in model container [2022-11-25 15:40:21,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:40:21" (3/3) ... [2022-11-25 15:40:21,046 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.10.c [2022-11-25 15:40:21,075 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:40:21,075 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 15:40:21,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:40:21,163 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;@6d3d1004, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:40:21,164 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 15:40:21,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.6) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:21,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 15:40:21,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:40:21,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 15:40:21,176 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 15:40:21,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:21,182 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-11-25 15:40:21,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:21,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622300598] [2022-11-25 15:40:21,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:21,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:21,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:40:21,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:21,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622300598] [2022-11-25 15:40:21,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622300598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:21,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:21,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:40:21,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295086534] [2022-11-25 15:40:21,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:21,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:40:21,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:21,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:40:21,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:40:21,465 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.6) internal successors, (16), 14 states have internal predecessors, (16), 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) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:21,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:40:21,533 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2022-11-25 15:40:21,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:40:21,535 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) Word has length 4 [2022-11-25 15:40:21,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:40:21,543 INFO L225 Difference]: With dead ends: 30 [2022-11-25 15:40:21,543 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 15:40:21,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:40:21,549 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 13 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:40:21,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 14 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:40:21,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 15:40:21,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2022-11-25 15:40:21,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:21,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-11-25 15:40:21,580 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2022-11-25 15:40:21,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:40:21,581 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-11-25 15:40:21,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:21,582 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-11-25 15:40:21,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 15:40:21,582 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:40:21,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 15:40:21,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:40:21,583 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 15:40:21,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:21,584 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-11-25 15:40:21,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:21,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113147933] [2022-11-25 15:40:21,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:21,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:21,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:40:21,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:21,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113147933] [2022-11-25 15:40:21,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113147933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:21,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:21,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:40:21,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611675252] [2022-11-25 15:40:21,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:21,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:40:21,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:21,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:40:21,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:40:21,629 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:21,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:40:21,657 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-11-25 15:40:21,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:40:21,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) Word has length 5 [2022-11-25 15:40:21,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:40:21,659 INFO L225 Difference]: With dead ends: 13 [2022-11-25 15:40:21,659 INFO L226 Difference]: Without dead ends: 12 [2022-11-25 15:40:21,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:40:21,661 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:40:21,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 8 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:40:21,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-25 15:40:21,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-25 15:40:21,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:21,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-25 15:40:21,666 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 5 [2022-11-25 15:40:21,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:40:21,667 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-25 15:40:21,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:21,667 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-25 15:40:21,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 15:40:21,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:40:21,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 15:40:21,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:40:21,669 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 15:40:21,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:21,669 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2022-11-25 15:40:21,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:21,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790745704] [2022-11-25 15:40:21,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:21,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:40:21,683 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:40:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:40:21,709 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:40:21,710 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 15:40:21,711 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-25 15:40:21,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-25 15:40:21,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-25 15:40:21,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-25 15:40:21,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:40:21,718 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 15:40:21,723 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:40:21,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:40:21 BoogieIcfgContainer [2022-11-25 15:40:21,742 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:40:21,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:40:21,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:40:21,743 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:40:21,743 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:40:21" (3/4) ... [2022-11-25 15:40:21,745 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 15:40:21,775 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:40:21,775 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:40:21,776 INFO L158 Benchmark]: Toolchain (without parser) took 1368.66ms. Allocated memory is still 151.0MB. Free memory was 80.1MB in the beginning and 72.5MB in the end (delta: 7.6MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2022-11-25 15:40:21,777 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 151.0MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:40:21,777 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.99ms. Allocated memory is still 151.0MB. Free memory was 79.9MB in the beginning and 117.3MB in the end (delta: -37.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 15:40:21,778 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.16ms. Allocated memory is still 151.0MB. Free memory was 117.3MB in the beginning and 116.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:40:21,778 INFO L158 Benchmark]: Boogie Preprocessor took 28.12ms. Allocated memory is still 151.0MB. Free memory was 116.1MB in the beginning and 114.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:40:21,779 INFO L158 Benchmark]: RCFGBuilder took 324.11ms. Allocated memory is still 151.0MB. Free memory was 114.9MB in the beginning and 106.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 15:40:21,779 INFO L158 Benchmark]: TraceAbstraction took 711.16ms. Allocated memory is still 151.0MB. Free memory was 105.2MB in the beginning and 74.1MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-25 15:40:21,780 INFO L158 Benchmark]: Witness Printer took 33.34ms. Allocated memory is still 151.0MB. Free memory was 74.1MB in the beginning and 72.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:40:21,782 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 151.0MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.99ms. Allocated memory is still 151.0MB. Free memory was 79.9MB in the beginning and 117.3MB in the end (delta: -37.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.16ms. Allocated memory is still 151.0MB. Free memory was 117.3MB in the beginning and 116.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.12ms. Allocated memory is still 151.0MB. Free memory was 116.1MB in the beginning and 114.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 324.11ms. Allocated memory is still 151.0MB. Free memory was 114.9MB in the beginning and 106.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 711.16ms. Allocated memory is still 151.0MB. Free memory was 105.2MB in the beginning and 74.1MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 33.34ms. Allocated memory is still 151.0MB. Free memory was 74.1MB in the beginning and 72.5MB in the end (delta: 1.7MB). There was no memory consumed. 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: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x > 0 && y < 0 VAL [x=1, y=-2147483648] [L27] EXPR x + y [L27] x = x + y VAL [x=-2147483647, y=-2147483648] [L28] y - 1 VAL [x=-2147483647, y=-2147483648] - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 28]: 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 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 12 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 15:40:21,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be05bd84-e3f5-43ab-9eb4-3a5c5a2144fc/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)