./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 59f8de3095dec84b471ea17a2f8054509a628ca6c3fce9f023768548ca2b0891 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:02:40,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:02:40,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:02:40,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:02:40,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:02:40,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:02:40,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:02:40,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:02:40,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:02:40,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:02:40,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:02:40,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:02:40,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:02:40,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:02:40,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:02:40,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:02:40,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:02:40,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:02:40,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:02:40,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:02:40,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:02:40,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:02:40,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:02:40,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:02:40,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:02:40,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:02:40,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:02:40,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:02:40,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:02:40,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:02:40,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:02:40,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:02:40,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:02:40,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:02:40,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:02:40,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:02:40,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:02:40,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:02:40,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:02:40,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:02:40,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:02:40,165 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-19 15:02:40,196 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:02:40,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:02:40,198 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:02:40,198 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:02:40,198 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:02:40,199 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:02:40,199 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:02:40,200 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:02:40,200 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:02:40,200 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:02:40,201 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:02:40,201 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:02:40,201 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:02:40,202 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:02:40,202 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:02:40,203 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:02:40,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:02:40,204 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 15:02:40,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:02:40,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:02:40,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:02:40,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:02:40,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:02:40,206 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-19 15:02:40,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:02:40,207 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:02:40,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:02:40,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:02:40,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:02:40,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:02:40,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:02:40,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:02:40,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:02:40,209 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:02:40,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:02:40,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:02:40,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:02:40,210 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:02:40,223 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59f8de3095dec84b471ea17a2f8054509a628ca6c3fce9f023768548ca2b0891 [2021-11-19 15:02:40,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:02:40,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:02:40,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:02:40,582 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:02:40,583 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:02:40,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2021-11-19 15:02:40,666 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/data/70913d431/02a091a985d04e0bb1795fb7f3a82ccf/FLAGaca02985e [2021-11-19 15:02:41,216 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:02:41,216 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2021-11-19 15:02:41,224 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/data/70913d431/02a091a985d04e0bb1795fb7f3a82ccf/FLAGaca02985e [2021-11-19 15:02:41,582 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/data/70913d431/02a091a985d04e0bb1795fb7f3a82ccf [2021-11-19 15:02:41,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:02:41,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:02:41,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:02:41,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:02:41,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:02:41,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:02:41" (1/1) ... [2021-11-19 15:02:41,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68c27512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:41, skipping insertion in model container [2021-11-19 15:02:41,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:02:41" (1/1) ... [2021-11-19 15:02:41,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:02:41,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:02:41,774 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:02:41,778 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:02:41,793 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:02:41,807 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:02:41,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:41 WrapperNode [2021-11-19 15:02:41,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:02:41,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:02:41,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:02:41,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:02:41,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:41" (1/1) ... [2021-11-19 15:02:41,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:41" (1/1) ... [2021-11-19 15:02:41,843 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2021-11-19 15:02:41,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:02:41,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:02:41,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:02:41,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:02:41,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:41" (1/1) ... [2021-11-19 15:02:41,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:41" (1/1) ... [2021-11-19 15:02:41,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:41" (1/1) ... [2021-11-19 15:02:41,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:41" (1/1) ... [2021-11-19 15:02:41,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:41" (1/1) ... [2021-11-19 15:02:41,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:41" (1/1) ... [2021-11-19 15:02:41,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:41" (1/1) ... [2021-11-19 15:02:41,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:02:41,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:02:41,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:02:41,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:02:41,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:41" (1/1) ... [2021-11-19 15:02:41,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:02:41,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:02:41,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:02:41,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:02:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:02:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:02:42,033 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:02:42,035 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:02:42,177 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:02:42,198 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:02:42,198 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 15:02:42,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:02:42 BoogieIcfgContainer [2021-11-19 15:02:42,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:02:42,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:02:42,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:02:42,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:02:42,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:02:41" (1/3) ... [2021-11-19 15:02:42,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe61ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:02:42, skipping insertion in model container [2021-11-19 15:02:42,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:02:41" (2/3) ... [2021-11-19 15:02:42,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe61ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:02:42, skipping insertion in model container [2021-11-19 15:02:42,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:02:42" (3/3) ... [2021-11-19 15:02:42,243 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2021-11-19 15:02:42,251 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:02:42,251 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-19 15:02:42,358 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:02:42,368 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 15:02:42,368 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-19 15:02:42,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 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) [2021-11-19 15:02:42,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 15:02:42,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:02:42,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 15:02:42,399 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-19 15:02:42,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:02:42,407 INFO L85 PathProgramCache]: Analyzing trace with hash 65732945, now seen corresponding path program 1 times [2021-11-19 15:02:42,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:02:42,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487380619] [2021-11-19 15:02:42,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:02:42,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:02:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:02:42,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:02:42,611 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:02:42,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487380619] [2021-11-19 15:02:42,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487380619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:02:42,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:02:42,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 15:02:42,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170631835] [2021-11-19 15:02:42,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:02:42,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:02:42,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:02:42,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:02:42,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:02:42,665 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 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 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2021-11-19 15:02:42,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:02:42,722 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2021-11-19 15:02:42,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:02:42,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2021-11-19 15:02:42,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:02:42,735 INFO L225 Difference]: With dead ends: 21 [2021-11-19 15:02:42,736 INFO L226 Difference]: Without dead ends: 16 [2021-11-19 15:02:42,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:02:42,745 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 8 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:02:42,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 10 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:02:42,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-19 15:02:42,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2021-11-19 15:02:42,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 14 states have internal predecessors, (17), 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) [2021-11-19 15:02:42,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-11-19 15:02:42,787 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 5 [2021-11-19 15:02:42,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:02:42,787 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-11-19 15:02:42,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2021-11-19 15:02:42,788 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-11-19 15:02:42,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 15:02:42,789 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:02:42,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 15:02:42,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 15:02:42,790 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-19 15:02:42,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:02:42,791 INFO L85 PathProgramCache]: Analyzing trace with hash 65733137, now seen corresponding path program 1 times [2021-11-19 15:02:42,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:02:42,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216047461] [2021-11-19 15:02:42,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:02:42,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:02:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:02:42,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:02:42,831 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:02:42,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216047461] [2021-11-19 15:02:42,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216047461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:02:42,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:02:42,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 15:02:42,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141487913] [2021-11-19 15:02:42,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:02:42,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:02:42,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:02:42,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:02:42,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:02:42,837 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2021-11-19 15:02:42,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:02:42,864 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2021-11-19 15:02:42,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:02:42,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 [2021-11-19 15:02:42,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:02:42,866 INFO L225 Difference]: With dead ends: 30 [2021-11-19 15:02:42,866 INFO L226 Difference]: Without dead ends: 17 [2021-11-19 15:02:42,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:02:42,870 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:02:42,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 12 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:02:42,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-19 15:02:42,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-19 15:02:42,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 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) [2021-11-19 15:02:42,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-11-19 15:02:42,878 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 5 [2021-11-19 15:02:42,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:02:42,878 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-11-19 15:02:42,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2021-11-19 15:02:42,879 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-11-19 15:02:42,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 15:02:42,879 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:02:42,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 15:02:42,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 15:02:42,880 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-19 15:02:42,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:02:42,882 INFO L85 PathProgramCache]: Analyzing trace with hash 2037721346, now seen corresponding path program 1 times [2021-11-19 15:02:42,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:02:42,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866285781] [2021-11-19 15:02:42,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:02:42,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:02:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:02:42,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:02:42,918 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:02:42,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866285781] [2021-11-19 15:02:42,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866285781] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:02:42,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:02:42,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 15:02:42,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738661954] [2021-11-19 15:02:42,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:02:42,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:02:42,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:02:42,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:02:42,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:02:42,923 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-11-19 15:02:42,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:02:42,941 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2021-11-19 15:02:42,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:02:42,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-11-19 15:02:42,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:02:42,943 INFO L225 Difference]: With dead ends: 17 [2021-11-19 15:02:42,943 INFO L226 Difference]: Without dead ends: 16 [2021-11-19 15:02:42,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:02:42,947 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:02:42,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:02:42,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-19 15:02:42,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-19 15:02:42,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 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) [2021-11-19 15:02:42,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2021-11-19 15:02:42,954 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 6 [2021-11-19 15:02:42,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:02:42,955 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-11-19 15:02:42,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-11-19 15:02:42,955 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2021-11-19 15:02:42,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-19 15:02:42,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:02:42,956 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-11-19 15:02:42,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 15:02:42,957 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-19 15:02:42,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:02:42,958 INFO L85 PathProgramCache]: Analyzing trace with hash 688900812, now seen corresponding path program 1 times [2021-11-19 15:02:42,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:02:42,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845927718] [2021-11-19 15:02:42,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:02:42,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:02:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:02:43,038 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:02:43,039 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:02:43,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845927718] [2021-11-19 15:02:43,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845927718] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:02:43,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709211081] [2021-11-19 15:02:43,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:02:43,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:02:43,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:02:43,045 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:02:43,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 15:02:43,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:02:43,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:02:43,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:02:43,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:02:43,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:02:43,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:02:43,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709211081] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:02:43,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1685658791] [2021-11-19 15:02:43,372 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-19 15:02:43,372 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 15:02:43,378 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 15:02:43,385 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 15:02:43,386 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 15:02:43,471 INFO L180 QuantifierPusher]: treesize reduction 13, result has 73.5 percent of original size [2021-11-19 15:02:43,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 15:02:43,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:43,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:43,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:43,708 INFO L180 QuantifierPusher]: treesize reduction 10, result has 88.9 percent of original size [2021-11-19 15:02:43,718 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-19 15:02:43,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:43,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:43,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:43,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:43,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:43,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:43,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:43,843 INFO L180 QuantifierPusher]: treesize reduction 11, result has 75.6 percent of original size [2021-11-19 15:02:43,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 15:02:43,864 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 15:02:44,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1685658791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:02:44,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:02:44,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 9 [2021-11-19 15:02:44,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924104573] [2021-11-19 15:02:44,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:02:44,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:02:44,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:02:44,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:02:44,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:02:44,071 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-11-19 15:02:44,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:02:44,171 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2021-11-19 15:02:44,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 15:02:44,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 9 [2021-11-19 15:02:44,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:02:44,174 INFO L225 Difference]: With dead ends: 26 [2021-11-19 15:02:44,175 INFO L226 Difference]: Without dead ends: 23 [2021-11-19 15:02:44,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:02:44,184 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:02:44,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 3 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:02:44,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-19 15:02:44,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-11-19 15:02:44,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 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) [2021-11-19 15:02:44,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-11-19 15:02:44,204 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 9 [2021-11-19 15:02:44,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:02:44,205 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-11-19 15:02:44,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-11-19 15:02:44,205 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-11-19 15:02:44,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-19 15:02:44,206 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:02:44,206 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:02:44,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:02:44,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:02:44,420 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-19 15:02:44,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:02:44,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1040300673, now seen corresponding path program 1 times [2021-11-19 15:02:44,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:02:44,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992378225] [2021-11-19 15:02:44,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:02:44,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:02:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:02:44,500 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 15:02:44,501 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:02:44,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992378225] [2021-11-19 15:02:44,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992378225] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:02:44,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065455769] [2021-11-19 15:02:44,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:02:44,502 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:02:44,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:02:44,516 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:02:44,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 15:02:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:02:44,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:02:44,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:02:44,644 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 15:02:44,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:02:44,727 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 15:02:44,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065455769] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:02:44,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1795727893] [2021-11-19 15:02:44,737 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-19 15:02:44,737 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 15:02:44,738 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 15:02:44,738 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 15:02:44,739 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 15:02:44,770 INFO L180 QuantifierPusher]: treesize reduction 6, result has 85.0 percent of original size [2021-11-19 15:02:44,773 INFO L185 QuantifierPusher]: treesize reduction 29, result has 3.3 percent of original size 1 [2021-11-19 15:02:44,781 INFO L180 QuantifierPusher]: treesize reduction 43, result has 2.3 percent of original size [2021-11-19 15:02:44,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 15:02:44,797 INFO L180 QuantifierPusher]: treesize reduction 13, result has 73.5 percent of original size [2021-11-19 15:02:44,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 15:02:44,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:44,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:44,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:44,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:44,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:44,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:44,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:44,867 INFO L180 QuantifierPusher]: treesize reduction 11, result has 88.0 percent of original size [2021-11-19 15:02:44,885 INFO L185 QuantifierPusher]: treesize reduction 31, result has 54.4 percent of original size 37 [2021-11-19 15:02:44,899 INFO L180 QuantifierPusher]: treesize reduction 39, result has 52.4 percent of original size [2021-11-19 15:02:44,908 INFO L185 QuantifierPusher]: treesize reduction 9, result has 71.0 percent of original size 22 [2021-11-19 15:02:44,919 INFO L180 QuantifierPusher]: treesize reduction 16, result has 84.2 percent of original size [2021-11-19 15:02:44,926 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-19 15:02:44,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:44,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:44,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:44,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:44,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:44,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:44,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:44,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:44,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:44,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:45,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:45,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:02:45,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 15:02:45,023 INFO L180 QuantifierPusher]: treesize reduction 5, result has 86.1 percent of original size [2021-11-19 15:02:45,028 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 15:02:45,034 INFO L180 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size [2021-11-19 15:02:45,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 15:02:45,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:45,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:45,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:45,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:02:45,077 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:02:45,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 15:02:45,089 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 15:02:45,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1795727893] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:02:45,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:02:45,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 3, 3] total 13 [2021-11-19 15:02:45,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245583112] [2021-11-19 15:02:45,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:02:45,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 15:02:45,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:02:45,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 15:02:45,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-11-19 15:02:45,287 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-11-19 15:02:45,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:02:45,371 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2021-11-19 15:02:45,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 15:02:45,372 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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 13 [2021-11-19 15:02:45,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:02:45,372 INFO L225 Difference]: With dead ends: 24 [2021-11-19 15:02:45,372 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 15:02:45,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-11-19 15:02:45,374 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:02:45,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 0 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:02:45,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 15:02:45,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 15:02:45,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-11-19 15:02:45,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 15:02:45,377 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-11-19 15:02:45,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:02:45,377 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 15:02:45,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-11-19 15:02:45,377 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 15:02:45,378 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 15:02:45,380 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-11-19 15:02:45,381 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-11-19 15:02:45,381 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-11-19 15:02:45,382 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-11-19 15:02:45,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:02:45,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-19 15:02:45,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 15:02:45,710 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-11-19 15:02:45,710 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 15:02:45,711 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-11-19 15:02:45,711 INFO L858 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-11-19 15:02:45,711 INFO L858 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-11-19 15:02:45,712 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 26) no Hoare annotation was computed. [2021-11-19 15:02:45,712 INFO L854 garLoopResultBuilder]: At program point L21-2(lines 20 27) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~n~0#1| 2147483647)) (.cse1 (<= 0 |ULTIMATE.start_main_~m~0#1|)) (.cse2 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse3 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse4 (<= |ULTIMATE.start_main_~m~0#1| 2147483647))) (or (and .cse0 .cse1 .cse2 (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 (<= 0 |ULTIMATE.start_main_~n~0#1|) .cse4 (<= |ULTIMATE.start_main_~j~0#1| 0)))) [2021-11-19 15:02:45,712 INFO L858 garLoopResultBuilder]: For program point L17(lines 17 28) no Hoare annotation was computed. [2021-11-19 15:02:45,713 INFO L861 garLoopResultBuilder]: At program point L17-1(lines 17 28) the Hoare annotation is: true [2021-11-19 15:02:45,713 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-11-19 15:02:45,713 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-11-19 15:02:45,713 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 15:02:45,714 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-11-19 15:02:45,714 INFO L858 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2021-11-19 15:02:45,718 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-19 15:02:45,720 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 15:02:45,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 03:02:45 BoogieIcfgContainer [2021-11-19 15:02:45,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 15:02:45,770 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 15:02:45,770 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 15:02:45,771 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 15:02:45,771 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:02:42" (3/4) ... [2021-11-19 15:02:45,778 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 15:02:45,794 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-19 15:02:45,794 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-19 15:02:45,795 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 15:02:45,835 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 15:02:45,836 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 15:02:45,837 INFO L158 Benchmark]: Toolchain (without parser) took 4247.76ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 51.2MB in the beginning and 71.2MB in the end (delta: -20.0MB). Peak memory consumption was 486.0kB. Max. memory is 16.1GB. [2021-11-19 15:02:45,837 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:02:45,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.62ms. Allocated memory is still 92.3MB. Free memory was 50.9MB in the beginning and 42.3MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 15:02:45,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.66ms. Allocated memory is still 92.3MB. Free memory was 42.3MB in the beginning and 40.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 15:02:45,839 INFO L158 Benchmark]: Boogie Preprocessor took 22.21ms. Allocated memory is still 92.3MB. Free memory was 40.9MB in the beginning and 40.0MB in the end (delta: 864.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 15:02:45,839 INFO L158 Benchmark]: RCFGBuilder took 334.24ms. Allocated memory is still 92.3MB. Free memory was 40.0MB in the beginning and 69.7MB in the end (delta: -29.8MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2021-11-19 15:02:45,840 INFO L158 Benchmark]: TraceAbstraction took 3565.11ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 69.5MB in the beginning and 73.3MB in the end (delta: -3.8MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2021-11-19 15:02:45,841 INFO L158 Benchmark]: Witness Printer took 66.07ms. Allocated memory is still 111.1MB. Free memory was 73.3MB in the beginning and 71.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 15:02:45,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.62ms. Allocated memory is still 92.3MB. Free memory was 50.9MB in the beginning and 42.3MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.66ms. Allocated memory is still 92.3MB. Free memory was 42.3MB in the beginning and 40.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.21ms. Allocated memory is still 92.3MB. Free memory was 40.9MB in the beginning and 40.0MB in the end (delta: 864.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 334.24ms. Allocated memory is still 92.3MB. Free memory was 40.0MB in the beginning and 69.7MB in the end (delta: -29.8MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3565.11ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 69.5MB in the beginning and 73.3MB in the end (delta: -3.8MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Witness Printer took 66.07ms. Allocated memory is still 111.1MB. Free memory was 73.3MB in the beginning and 71.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 52 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 90 IncrementalHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 24 mSDtfsCounter, 90 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 49 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 43 HoareAnnotationTreeSize, 2 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 51 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 209 SizeOfPredicates, 0 NumberOfNonLiveVariables, 52 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 7/30 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: OVERALL_TIME: 0.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 14, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 47, TOOLS_POST_TIME: 0.3s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 47, TOOLS_QUANTIFIERELIM_TIME: 0.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 79, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME: 0.4s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 14, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 0.7s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.7s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 104, DAG_COMPRESSION_RETAINED_NODES: 53, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((((n <= 2147483647 && 0 <= m) && 0 <= j) && i < n) && 0 <= i) && m <= 2147483647) || ((((((n <= 2147483647 && 0 <= m) && 0 <= j) && 0 <= i) && 0 <= n) && m <= 2147483647) && j <= 0) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-19 15:02:45,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66af05f1-2636-4133-a787-cec02b6f2d0f/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE