./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/dirname-1.i --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_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/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_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/dirname-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/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_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/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 90eaf2e76e590922119d90e478fc764e383193134f46d6fe59bc98f3ce7c6611 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:08:13,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:08:13,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:08:13,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:08:13,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:08:13,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:08:13,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:08:13,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:08:13,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:08:13,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:08:13,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:08:13,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:08:13,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:08:13,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:08:13,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:08:13,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:08:13,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:08:13,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:08:13,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:08:13,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:08:13,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:08:13,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:08:13,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:08:13,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:08:13,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:08:13,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:08:13,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:08:13,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:08:13,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:08:13,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:08:13,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:08:13,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:08:13,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:08:13,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:08:13,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:08:13,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:08:13,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:08:13,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:08:13,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:08:13,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:08:13,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:08:13,841 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-19 15:08:13,891 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:08:13,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:08:13,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:08:13,893 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:08:13,893 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:08:13,894 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:08:13,894 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:08:13,894 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:08:13,894 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:08:13,894 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:08:13,896 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:08:13,896 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:08:13,896 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:08:13,897 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:08:13,897 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:08:13,897 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:08:13,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:08:13,898 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 15:08:13,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:08:13,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:08:13,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:08:13,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:08:13,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:08:13,899 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-19 15:08:13,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:08:13,900 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:08:13,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:08:13,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:08:13,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:08:13,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:08:13,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:08:13,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:08:13,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:08:13,904 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:08:13,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:08:13,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:08:13,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:08:13,904 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:08:13,905 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_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90eaf2e76e590922119d90e478fc764e383193134f46d6fe59bc98f3ce7c6611 [2021-11-19 15:08:14,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:08:14,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:08:14,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:08:14,291 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:08:14,291 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:08:14,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/busybox-1.22.0/dirname-1.i [2021-11-19 15:08:14,363 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/data/973e5cf38/9ad750d7dba74f5c8d4922ab75eea59d/FLAGa29107aa1 [2021-11-19 15:08:15,087 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:08:15,091 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/sv-benchmarks/c/busybox-1.22.0/dirname-1.i [2021-11-19 15:08:15,124 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/data/973e5cf38/9ad750d7dba74f5c8d4922ab75eea59d/FLAGa29107aa1 [2021-11-19 15:08:15,300 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/data/973e5cf38/9ad750d7dba74f5c8d4922ab75eea59d [2021-11-19 15:08:15,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:08:15,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:08:15,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:08:15,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:08:15,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:08:15,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:08:15" (1/1) ... [2021-11-19 15:08:15,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bca78b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:15, skipping insertion in model container [2021-11-19 15:08:15,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:08:15" (1/1) ... [2021-11-19 15:08:15,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:08:15,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:08:16,224 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:08:16,241 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:08:16,319 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:08:16,398 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:08:16,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:16 WrapperNode [2021-11-19 15:08:16,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:08:16,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:08:16,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:08:16,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:08:16,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:16" (1/1) ... [2021-11-19 15:08:16,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:16" (1/1) ... [2021-11-19 15:08:16,581 INFO L137 Inliner]: procedures = 346, calls = 111, calls flagged for inlining = 8, calls inlined = 7, statements flattened = 277 [2021-11-19 15:08:16,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:08:16,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:08:16,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:08:16,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:08:16,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:16" (1/1) ... [2021-11-19 15:08:16,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:16" (1/1) ... [2021-11-19 15:08:16,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:16" (1/1) ... [2021-11-19 15:08:16,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:16" (1/1) ... [2021-11-19 15:08:16,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:16" (1/1) ... [2021-11-19 15:08:16,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:16" (1/1) ... [2021-11-19 15:08:16,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:16" (1/1) ... [2021-11-19 15:08:16,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:08:16,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:08:16,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:08:16,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:08:16,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:16" (1/1) ... [2021-11-19 15:08:16,685 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:08:16,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:08:16,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:08:16,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:08:16,765 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 15:08:16,765 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 15:08:16,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:08:16,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 15:08:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:08:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 15:08:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 15:08:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-19 15:08:16,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 15:08:16,767 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2021-11-19 15:08:16,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:08:16,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 15:08:16,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 15:08:16,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:08:16,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:08:16,913 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:08:16,915 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:08:17,494 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:08:17,589 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:08:17,590 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-19 15:08:17,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:08:17 BoogieIcfgContainer [2021-11-19 15:08:17,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:08:17,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:08:17,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:08:17,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:08:17,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:08:15" (1/3) ... [2021-11-19 15:08:17,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0a87a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:08:17, skipping insertion in model container [2021-11-19 15:08:17,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:16" (2/3) ... [2021-11-19 15:08:17,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0a87a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:08:17, skipping insertion in model container [2021-11-19 15:08:17,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:08:17" (3/3) ... [2021-11-19 15:08:17,602 INFO L111 eAbstractionObserver]: Analyzing ICFG dirname-1.i [2021-11-19 15:08:17,608 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:08:17,609 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2021-11-19 15:08:17,665 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:08:17,672 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 15:08:17,673 INFO L340 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2021-11-19 15:08:17,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 42 states have (on average 1.880952380952381) internal successors, (79), 66 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 15:08:17,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-19 15:08:17,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:08:17,698 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-19 15:08:17,698 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-11-19 15:08:17,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:08:17,704 INFO L85 PathProgramCache]: Analyzing trace with hash 258126, now seen corresponding path program 1 times [2021-11-19 15:08:17,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:08:17,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288925828] [2021-11-19 15:08:17,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:17,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:08:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:08:18,015 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 15:08:18,016 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:08:18,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288925828] [2021-11-19 15:08:18,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288925828] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:08:18,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:08:18,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:08:18,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690659576] [2021-11-19 15:08:18,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:08:18,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:08:18,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:08:18,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:08:18,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:08:18,083 INFO L87 Difference]: Start difference. First operand has 69 states, 42 states have (on average 1.880952380952381) internal successors, (79), 66 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 15:08:18,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:08:18,202 INFO L93 Difference]: Finished difference Result 137 states and 161 transitions. [2021-11-19 15:08:18,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:08:18,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2021-11-19 15:08:18,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:08:18,224 INFO L225 Difference]: With dead ends: 137 [2021-11-19 15:08:18,225 INFO L226 Difference]: Without dead ends: 71 [2021-11-19 15:08:18,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 15:08:18,232 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 1 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:08:18,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 134 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:08:18,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-19 15:08:18,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-19 15:08:18,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 45 states have (on average 1.8) internal successors, (81), 68 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 15:08:18,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 83 transitions. [2021-11-19 15:08:18,295 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 83 transitions. Word has length 3 [2021-11-19 15:08:18,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:08:18,295 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 83 transitions. [2021-11-19 15:08:18,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 15:08:18,296 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 83 transitions. [2021-11-19 15:08:18,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 15:08:18,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:08:18,296 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2021-11-19 15:08:18,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 15:08:18,297 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-11-19 15:08:18,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:08:18,298 INFO L85 PathProgramCache]: Analyzing trace with hash -900050454, now seen corresponding path program 1 times [2021-11-19 15:08:18,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:08:18,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59957718] [2021-11-19 15:08:18,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:18,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:08:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:08:18,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 15:08:18,384 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:08:18,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59957718] [2021-11-19 15:08:18,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59957718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:08:18,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:08:18,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 15:08:18,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679936139] [2021-11-19 15:08:18,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:08:18,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:08:18,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:08:18,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:08:18,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:08:18,388 INFO L87 Difference]: Start difference. First operand 71 states and 83 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 15:08:18,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:08:18,442 INFO L93 Difference]: Finished difference Result 71 states and 83 transitions. [2021-11-19 15:08:18,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:08:18,443 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 15:08:18,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:08:18,445 INFO L225 Difference]: With dead ends: 71 [2021-11-19 15:08:18,445 INFO L226 Difference]: Without dead ends: 70 [2021-11-19 15:08:18,445 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 15:08:18,447 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 2 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:08:18,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 132 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:08:18,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-19 15:08:18,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-19 15:08:18,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 45 states have (on average 1.7777777777777777) internal successors, (80), 67 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 15:08:18,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 82 transitions. [2021-11-19 15:08:18,459 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 82 transitions. Word has length 6 [2021-11-19 15:08:18,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:08:18,460 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 82 transitions. [2021-11-19 15:08:18,460 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 15:08:18,460 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 82 transitions. [2021-11-19 15:08:18,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 15:08:18,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:08:18,461 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2021-11-19 15:08:18,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 15:08:18,462 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-11-19 15:08:18,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:08:18,463 INFO L85 PathProgramCache]: Analyzing trace with hash -2131760245, now seen corresponding path program 1 times [2021-11-19 15:08:18,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:08:18,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172783422] [2021-11-19 15:08:18,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:18,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:08:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:08:18,594 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 15:08:18,606 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:08:18,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172783422] [2021-11-19 15:08:18,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172783422] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:08:18,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213294188] [2021-11-19 15:08:18,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:18,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:08:18,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:08:18,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:08:18,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 15:08:18,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:08:18,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:08:18,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:08:18,816 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:08:18,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:08:18,858 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:08:18,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213294188] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:08:18,859 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:08:18,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [2] total 5 [2021-11-19 15:08:18,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019220045] [2021-11-19 15:08:18,859 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:08:18,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:08:18,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:08:18,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:08:18,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:08:18,861 INFO L87 Difference]: Start difference. First operand 70 states and 82 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 15:08:18,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:08:18,951 INFO L93 Difference]: Finished difference Result 70 states and 82 transitions. [2021-11-19 15:08:18,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:08:18,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 7 [2021-11-19 15:08:18,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:08:18,953 INFO L225 Difference]: With dead ends: 70 [2021-11-19 15:08:18,955 INFO L226 Difference]: Without dead ends: 69 [2021-11-19 15:08:18,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:08:18,957 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 213 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:08:18,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 68 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:08:18,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-19 15:08:18,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2021-11-19 15:08:18,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 43 states have (on average 1.7906976744186047) internal successors, (77), 64 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 15:08:18,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 79 transitions. [2021-11-19 15:08:18,978 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 79 transitions. Word has length 7 [2021-11-19 15:08:18,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:08:18,978 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 79 transitions. [2021-11-19 15:08:18,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 15:08:18,979 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions. [2021-11-19 15:08:18,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-19 15:08:18,979 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:08:18,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:08:19,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:08:19,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:08:19,193 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-11-19 15:08:19,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:08:19,193 INFO L85 PathProgramCache]: Analyzing trace with hash 291172227, now seen corresponding path program 1 times [2021-11-19 15:08:19,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:08:19,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411500228] [2021-11-19 15:08:19,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:19,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:08:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:08:19,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:08:19,253 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:08:19,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411500228] [2021-11-19 15:08:19,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411500228] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:08:19,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065618320] [2021-11-19 15:08:19,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:19,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:08:19,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:08:19,256 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:08:19,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 15:08:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:08:19,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:08:19,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:08:19,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:08:19,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:08:19,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:08:19,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065618320] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:08:19,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [390248024] [2021-11-19 15:08:19,586 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-19 15:08:19,586 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 15:08:19,592 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 15:08:19,598 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 15:08:19,599 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 15:08:19,688 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:08:19,703 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:08:19,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:08:19,713 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-11-19 15:08:19,717 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:08:19,718 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:08:19,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-19 15:08:19,722 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:08:19,722 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:08:19,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-19 15:08:19,727 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:08:19,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:08:19,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-11-19 15:08:19,731 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:08:19,732 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:08:19,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-19 15:08:19,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 462 [2021-11-19 15:08:19,820 INFO L446 ElimStorePlain]: Different costs {30=[|v_#length_18|], 81=[|v_#valid_36|]} [2021-11-19 15:08:19,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:19,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,039 INFO L244 Elim1Store]: Index analysis took 181 ms [2021-11-19 15:08:20,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 84 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 96 [2021-11-19 15:08:20,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:08:20,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-19 15:08:20,077 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:08:20,078 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-19 15:08:20,079 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 15:08:20,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:08:20,165 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:08:20,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:08:20,373 INFO L244 Elim1Store]: Index analysis took 155 ms [2021-11-19 15:08:20,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 113 [2021-11-19 15:08:20,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:08:20,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-19 15:08:20,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:08:20,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-19 15:08:20,403 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 15:08:20,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:08:20,466 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:08:20,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:08:20,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:08:20,703 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: incompatible size at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:210) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:166) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:63) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:573) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:444) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:242) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:402) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:228) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-19 15:08:20,707 INFO L158 Benchmark]: Toolchain (without parser) took 5402.41ms. Allocated memory was 100.7MB in the beginning and 167.8MB in the end (delta: 67.1MB). Free memory was 57.2MB in the beginning and 133.6MB in the end (delta: -76.5MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2021-11-19 15:08:20,707 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:08:20,708 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1091.26ms. Allocated memory is still 100.7MB. Free memory was 56.9MB in the beginning and 43.8MB in the end (delta: 13.1MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2021-11-19 15:08:20,709 INFO L158 Benchmark]: Boogie Procedure Inliner took 181.55ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 43.8MB in the beginning and 104.3MB in the end (delta: -60.5MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2021-11-19 15:08:20,709 INFO L158 Benchmark]: Boogie Preprocessor took 92.47ms. Allocated memory is still 130.0MB. Free memory was 104.3MB in the beginning and 102.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 15:08:20,710 INFO L158 Benchmark]: RCFGBuilder took 917.40ms. Allocated memory is still 130.0MB. Free memory was 102.2MB in the beginning and 73.5MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2021-11-19 15:08:20,710 INFO L158 Benchmark]: TraceAbstraction took 3111.42ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 73.5MB in the beginning and 133.6MB in the end (delta: -60.2MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2021-11-19 15:08:20,713 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1091.26ms. Allocated memory is still 100.7MB. Free memory was 56.9MB in the beginning and 43.8MB in the end (delta: 13.1MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 181.55ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 43.8MB in the beginning and 104.3MB in the end (delta: -60.5MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.47ms. Allocated memory is still 130.0MB. Free memory was 104.3MB in the beginning and 102.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 917.40ms. Allocated memory is still 130.0MB. Free memory was 102.2MB in the beginning and 73.5MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3111.42ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 73.5MB in the beginning and 133.6MB in the end (delta: -60.2MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: incompatible size de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: incompatible size: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:210) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-19 15:08:20,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/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 Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2718a6d3-1c01-453b-b4c0-2fc7d6ae6763/bin/utaipan-UbGMyvGFUs/config using search string *Overflow*64bit*_Bitvector*.epf No suitable settings file found using Overflow*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: incompatible size