./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/test22-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test22-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS --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 32bit --witnessprinter.graph.data.programhash e1ce1c36cc17bb5fac8e93fbe54fbc2a77334d62ad40c06c722f9da96af2516f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:39:18,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:39:18,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:39:18,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:39:18,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:39:18,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:39:18,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:39:18,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:39:18,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:39:18,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:39:18,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:39:18,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:39:18,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:39:18,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:39:18,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:39:18,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:39:18,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:39:18,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:39:18,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:39:18,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:39:18,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:39:18,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:39:18,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:39:18,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:39:18,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:39:18,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:39:18,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:39:18,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:39:18,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:39:18,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:39:18,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:39:18,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:39:18,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:39:18,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:39:18,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:39:18,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:39:18,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:39:18,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:39:18,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:39:18,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:39:18,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:39:18,783 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 07:39:18,836 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:39:18,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:39:18,837 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:39:18,837 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:39:18,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:39:18,838 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:39:18,839 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:39:18,839 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:39:18,839 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:39:18,840 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:39:18,841 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:39:18,841 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:39:18,841 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:39:18,842 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:39:18,842 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:39:18,842 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:39:18,842 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:39:18,843 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:39:18,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:39:18,844 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:39:18,844 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:39:18,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:39:18,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:39:18,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:39:18,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:39:18,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:39:18,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:39:18,847 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:39:18,848 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:39:18,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:39:18,848 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:39:18,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:39:18,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:39:18,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:39:18,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:39:18,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:39:18,850 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:39:18,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:39:18,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:39:18,851 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:39:18,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:39:18,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:39:18,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:39:18,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1ce1c36cc17bb5fac8e93fbe54fbc2a77334d62ad40c06c722f9da96af2516f [2022-11-19 07:39:19,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:39:19,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:39:19,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:39:19,259 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:39:19,260 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:39:19,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-regression/test22-1.c [2022-11-19 07:39:19,342 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/data/4a47d186a/1ea08a75c8e34e0589c950d177ae322f/FLAG6f90aa771 [2022-11-19 07:39:19,840 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:39:19,843 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/sv-benchmarks/c/ldv-regression/test22-1.c [2022-11-19 07:39:19,852 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/data/4a47d186a/1ea08a75c8e34e0589c950d177ae322f/FLAG6f90aa771 [2022-11-19 07:39:20,201 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/data/4a47d186a/1ea08a75c8e34e0589c950d177ae322f [2022-11-19 07:39:20,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:39:20,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:39:20,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:39:20,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:39:20,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:39:20,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:20" (1/1) ... [2022-11-19 07:39:20,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6095e9c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20, skipping insertion in model container [2022-11-19 07:39:20,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:20" (1/1) ... [2022-11-19 07:39:20,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:39:20,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:39:20,597 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/sv-benchmarks/c/ldv-regression/test22-1.c[1029,1042] [2022-11-19 07:39:20,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:39:20,609 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:39:20,648 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/sv-benchmarks/c/ldv-regression/test22-1.c[1029,1042] [2022-11-19 07:39:20,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:39:20,671 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:39:20,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20 WrapperNode [2022-11-19 07:39:20,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:39:20,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:39:20,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:39:20,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:39:20,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2022-11-19 07:39:20,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2022-11-19 07:39:20,721 INFO L138 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2022-11-19 07:39:20,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:39:20,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:39:20,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:39:20,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:39:20,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2022-11-19 07:39:20,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2022-11-19 07:39:20,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2022-11-19 07:39:20,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2022-11-19 07:39:20,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2022-11-19 07:39:20,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2022-11-19 07:39:20,750 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2022-11-19 07:39:20,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2022-11-19 07:39:20,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:39:20,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:39:20,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:39:20,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:39:20,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2022-11-19 07:39:20,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:39:20,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:39:20,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:39:20,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:39:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:39:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:39:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:39:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2022-11-19 07:39:20,848 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2022-11-19 07:39:20,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:39:20,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:39:20,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:39:20,944 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:39:20,945 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:39:21,141 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:39:21,198 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:39:21,198 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:39:21,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:21 BoogieIcfgContainer [2022-11-19 07:39:21,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:39:21,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:39:21,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:39:21,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:39:21,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:39:20" (1/3) ... [2022-11-19 07:39:21,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157cab26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:21, skipping insertion in model container [2022-11-19 07:39:21,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (2/3) ... [2022-11-19 07:39:21,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157cab26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:21, skipping insertion in model container [2022-11-19 07:39:21,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:21" (3/3) ... [2022-11-19 07:39:21,212 INFO L112 eAbstractionObserver]: Analyzing ICFG test22-1.c [2022-11-19 07:39:21,251 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:39:21,252 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-19 07:39:21,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:39:21,318 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@574e3c62, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:39:21,319 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-19 07:39:21,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.5) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 07:39:21,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 07:39:21,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:39:21,335 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:39:21,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:39:21,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:39:21,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1545319897, now seen corresponding path program 1 times [2022-11-19 07:39:21,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:39:21,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476891400] [2022-11-19 07:39:21,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:39:21,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:39:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:39:23,073 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:39:23,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:39:23,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476891400] [2022-11-19 07:39:23,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476891400] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:39:23,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539759628] [2022-11-19 07:39:23,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:39:23,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:39:23,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:39:23,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:39:23,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:39:23,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:39:23,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-19 07:39:23,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:39:23,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:23,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:23,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2022-11-19 07:39:24,313 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:39:24,333 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:39:24,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 29 [2022-11-19 07:39:24,444 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:39:24,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:39:25,070 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:39:25,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539759628] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:39:25,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [411203623] [2022-11-19 07:39:25,099 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-19 07:39:25,099 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:39:25,103 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:39:25,110 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:39:25,110 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:39:25,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:25,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:25,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 65 [2022-11-19 07:39:26,393 INFO L197 IcfgInterpreter]: Interpreting procedure get_dummy with input of size 77 for LOIs [2022-11-19 07:39:26,411 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:39:30,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [411203623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:39:30,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:39:30,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 7, 7] total 30 [2022-11-19 07:39:30,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921309317] [2022-11-19 07:39:30,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:39:30,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 07:39:30,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:39:30,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 07:39:30,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=745, Unknown=0, NotChecked=0, Total=930 [2022-11-19 07:39:30,390 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.5) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 11 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 07:39:30,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:39:30,461 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2022-11-19 07:39:30,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-19 07:39:30,465 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 15 [2022-11-19 07:39:30,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:39:30,473 INFO L225 Difference]: With dead ends: 30 [2022-11-19 07:39:30,474 INFO L226 Difference]: Without dead ends: 19 [2022-11-19 07:39:30,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=185, Invalid=745, Unknown=0, NotChecked=0, Total=930 [2022-11-19 07:39:30,484 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:39:30,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 42 Unchecked, 0.0s Time] [2022-11-19 07:39:30,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-19 07:39:30,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-19 07:39:30,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 07:39:30,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-11-19 07:39:30,528 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15 [2022-11-19 07:39:30,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:39:30,530 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-11-19 07:39:30,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 07:39:30,530 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-11-19 07:39:30,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 07:39:30,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:39:30,538 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:39:30,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:39:30,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 07:39:30,751 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:39:30,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:39:30,752 INFO L85 PathProgramCache]: Analyzing trace with hash 660276606, now seen corresponding path program 1 times [2022-11-19 07:39:30,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:39:30,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870570170] [2022-11-19 07:39:30,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:39:30,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:39:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:39:30,946 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 07:39:30,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:39:30,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870570170] [2022-11-19 07:39:30,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870570170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:39:30,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:39:30,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:39:30,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896619675] [2022-11-19 07:39:30,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:39:30,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:39:30,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:39:30,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:39:30,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:39:30,950 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 07:39:31,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:39:31,001 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-11-19 07:39:31,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:39:31,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2022-11-19 07:39:31,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:39:31,003 INFO L225 Difference]: With dead ends: 19 [2022-11-19 07:39:31,003 INFO L226 Difference]: Without dead ends: 18 [2022-11-19 07:39:31,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:39:31,005 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:39:31,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 33 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:39:31,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-19 07:39:31,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-19 07:39:31,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 07:39:31,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-11-19 07:39:31,018 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 16 [2022-11-19 07:39:31,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:39:31,018 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-11-19 07:39:31,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 07:39:31,019 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-19 07:39:31,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 07:39:31,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:39:31,020 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:39:31,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:39:31,021 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:39:31,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:39:31,022 INFO L85 PathProgramCache]: Analyzing trace with hash -649786592, now seen corresponding path program 1 times [2022-11-19 07:39:31,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:39:31,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892529669] [2022-11-19 07:39:31,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:39:31,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:39:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:39:31,742 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:39:31,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:39:31,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892529669] [2022-11-19 07:39:31,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892529669] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:39:31,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435963017] [2022-11-19 07:39:31,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:39:31,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:39:31,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:39:31,746 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:39:31,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:39:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:39:31,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-19 07:39:31,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:39:31,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:31,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 33 [2022-11-19 07:39:31,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:31,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2022-11-19 07:39:31,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:31,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2022-11-19 07:39:32,679 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:39:32,691 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:39:32,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 29 [2022-11-19 07:39:32,785 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:39:32,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:39:33,541 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:39:33,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435963017] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:39:33,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1285659271] [2022-11-19 07:39:33,544 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-19 07:39:33,544 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:39:33,545 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:39:33,545 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:39:33,545 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:39:33,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:33,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:33,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 65 [2022-11-19 07:39:35,173 INFO L197 IcfgInterpreter]: Interpreting procedure get_dummy with input of size 77 for LOIs [2022-11-19 07:39:35,190 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:39:40,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1285659271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:39:40,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:39:40,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12, 8, 10] total 39 [2022-11-19 07:39:40,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141089129] [2022-11-19 07:39:40,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:39:40,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 07:39:40,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:39:40,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 07:39:40,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=1283, Unknown=0, NotChecked=0, Total=1560 [2022-11-19 07:39:40,342 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 07:39:40,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:39:40,362 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2022-11-19 07:39:40,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 07:39:40,363 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 19 [2022-11-19 07:39:40,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:39:40,364 INFO L225 Difference]: With dead ends: 22 [2022-11-19 07:39:40,364 INFO L226 Difference]: Without dead ends: 21 [2022-11-19 07:39:40,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=277, Invalid=1283, Unknown=0, NotChecked=0, Total=1560 [2022-11-19 07:39:40,367 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:39:40,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 60 Unchecked, 0.0s Time] [2022-11-19 07:39:40,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-19 07:39:40,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-19 07:39:40,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 07:39:40,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-11-19 07:39:40,377 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 19 [2022-11-19 07:39:40,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:39:40,378 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-11-19 07:39:40,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 07:39:40,378 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-11-19 07:39:40,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:39:40,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:39:40,379 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:39:40,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-19 07:39:40,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-19 07:39:40,585 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:39:40,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:39:40,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1331452197, now seen corresponding path program 1 times [2022-11-19 07:39:40,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:39:40,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136230997] [2022-11-19 07:39:40,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:39:40,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:39:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:39:40,635 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 07:39:40,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:39:40,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136230997] [2022-11-19 07:39:40,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136230997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:39:40,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:39:40,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:39:40,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192103268] [2022-11-19 07:39:40,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:39:40,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:39:40,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:39:40,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:39:40,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:39:40,639 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 07:39:40,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:39:40,665 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2022-11-19 07:39:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:39:40,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2022-11-19 07:39:40,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:39:40,667 INFO L225 Difference]: With dead ends: 21 [2022-11-19 07:39:40,667 INFO L226 Difference]: Without dead ends: 20 [2022-11-19 07:39:40,667 INFO L412 NwaCegarLoop]: 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 [2022-11-19 07:39:40,669 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:39:40,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 20 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:39:40,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-19 07:39:40,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-19 07:39:40,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 07:39:40,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-11-19 07:39:40,678 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 20 [2022-11-19 07:39:40,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:39:40,679 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-11-19 07:39:40,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 07:39:40,679 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-11-19 07:39:40,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-19 07:39:40,680 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:39:40,680 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:39:40,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:39:40,681 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:39:40,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:39:40,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1269482009, now seen corresponding path program 1 times [2022-11-19 07:39:40,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:39:40,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079799190] [2022-11-19 07:39:40,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:39:40,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:39:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:39:41,253 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 07:39:41,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:39:41,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079799190] [2022-11-19 07:39:41,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079799190] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:39:41,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210362683] [2022-11-19 07:39:41,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:39:41,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:39:41,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:39:41,259 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:39:41,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:39:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:39:41,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-19 07:39:41,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:39:41,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:41,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:41,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 33 [2022-11-19 07:39:41,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:41,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2022-11-19 07:39:41,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:41,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:41,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2022-11-19 07:39:42,913 INFO L321 Elim1Store]: treesize reduction 29, result has 49.1 percent of original size [2022-11-19 07:39:42,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 72 [2022-11-19 07:39:43,155 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:39:43,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:39:44,022 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:39:44,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210362683] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:39:44,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1657358349] [2022-11-19 07:39:44,025 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-19 07:39:44,025 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:39:44,026 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:39:44,026 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:39:44,026 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:39:44,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:44,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:44,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 65 [2022-11-19 07:39:45,762 INFO L197 IcfgInterpreter]: Interpreting procedure get_dummy with input of size 77 for LOIs [2022-11-19 07:39:45,783 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:39:49,796 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '685#(and (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (= 5 |~#d2~0.base|) (not (<= |ULTIMATE.start_main_~i~0#1| 2147483646)) (= |~#d1~0.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 07:39:49,796 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:39:49,796 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:39:49,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 13] total 32 [2022-11-19 07:39:49,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383158418] [2022-11-19 07:39:49,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:39:49,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-19 07:39:49,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:39:49,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-19 07:39:49,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=1696, Unknown=0, NotChecked=0, Total=1980 [2022-11-19 07:39:49,800 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 33 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 29 states have internal predecessors, (47), 7 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2022-11-19 07:39:51,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:39:51,951 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-11-19 07:39:51,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 07:39:51,952 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 29 states have internal predecessors, (47), 7 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) Word has length 23 [2022-11-19 07:39:51,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:39:51,953 INFO L225 Difference]: With dead ends: 27 [2022-11-19 07:39:51,953 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:39:51,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1016 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=591, Invalid=2831, Unknown=0, NotChecked=0, Total=3422 [2022-11-19 07:39:51,955 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 110 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:39:51,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 12 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 156 Invalid, 0 Unknown, 62 Unchecked, 0.2s Time] [2022-11-19 07:39:51,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:39:51,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:39:51,956 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) [2022-11-19 07:39:51,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:39:51,957 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2022-11-19 07:39:51,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:39:51,957 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:39:51,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 29 states have internal predecessors, (47), 7 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2022-11-19 07:39:51,957 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:39:51,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:39:51,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-19 07:39:51,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-19 07:39:51,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-19 07:39:51,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-19 07:39:51,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:39:52,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:39:52,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:39:52,925 INFO L902 garLoopResultBuilder]: At program point get_dummyENTRY(lines 22 25) the Hoare annotation is: true [2022-11-19 07:39:52,926 INFO L899 garLoopResultBuilder]: For program point get_dummyEXIT(lines 22 25) no Hoare annotation was computed. [2022-11-19 07:39:52,926 INFO L895 garLoopResultBuilder]: At program point L35-2(line 35) the Hoare annotation is: (let ((.cse6 (select |#memory_int| |~#d1~0.base|)) (.cse7 (select |#memory_int| |~#d2~0.base|))) (let ((.cse0 (select .cse7 |~#d2~0.offset|)) (.cse1 (select .cse6 |~#d1~0.offset|)) (.cse4 (select .cse7 (+ |~#d2~0.offset| 4))) (.cse3 (select .cse6 (+ |~#d1~0.offset| 4))) (.cse5 (select |#memory_int| 1))) (and (<= 0 (+ .cse0 2147483648)) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (<= .cse0 2147483647) (= 5 |~#d2~0.base|) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (<= .cse1 2147483647) (= (select |#valid| 3) 1) (exists ((|v_get_dummy_#t~nondet8_23| Int)) (let ((.cse2 (not (= (mod |v_get_dummy_#t~nondet8_23| 256) 0)))) (and (= (ite .cse2 |~#d1~0.base| |~#d2~0.base|) |ULTIMATE.start_main_~pd1~0#1.base|) (= (ite .cse2 |~#d1~0.offset| |~#d2~0.offset|) |ULTIMATE.start_main_~pd1~0#1.offset|)))) (<= 0 (+ 2147483648 .cse1)) (= (select |#length| 4) 8) (<= 0 (+ .cse3 2147483648)) (= (select |#valid| 4) 1) (<= 0 (+ .cse4 2147483648)) (<= .cse4 2147483647) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= |~#d1~0.offset| 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= 8 (select |#length| 5)) (<= .cse3 2147483647) (= (select .cse5 0) 48) (= (select .cse5 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0)))) [2022-11-19 07:39:52,926 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2022-11-19 07:39:52,927 INFO L895 garLoopResultBuilder]: At program point L35-4(line 35) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |~#d1~0.base|)) (.cse8 (select |#memory_int| |~#d2~0.base|))) (let ((.cse0 (select .cse8 |~#d2~0.offset|)) (.cse1 (select .cse7 |~#d1~0.offset|)) (.cse3 (select .cse8 (+ |~#d2~0.offset| 4))) (.cse2 (select .cse7 (+ |~#d1~0.offset| 4))) (.cse6 (select |#memory_int| 1))) (and (<= 0 (+ .cse0 2147483648)) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (<= .cse0 2147483647) (= 5 |~#d2~0.base|) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (<= .cse1 2147483647) (= (select |#valid| 3) 1) (<= 0 (+ 2147483648 .cse1)) (= (select |#length| 4) 8) (<= 0 (+ .cse2 2147483648)) (= (select |#valid| 4) 1) (<= 0 (+ .cse3 2147483648)) (<= .cse3 2147483647) (= (select |#valid| 1) 1) (exists ((|v_get_dummy_#t~nondet8_24| Int)) (let ((.cse4 (not (= (mod |v_get_dummy_#t~nondet8_24| 256) 0)))) (and (= (ite .cse4 |~#d1~0.offset| |~#d2~0.offset|) |ULTIMATE.start_main_~pd1~0#1.offset|) (= (ite .cse4 |~#d1~0.base| |~#d2~0.base|) |ULTIMATE.start_main_~pd1~0#1.base|)))) (exists ((|v_get_dummy_#t~nondet8_23| Int)) (let ((.cse5 (not (= (mod |v_get_dummy_#t~nondet8_23| 256) 0)))) (and (= (ite .cse5 |~#d1~0.base| |~#d2~0.base|) |ULTIMATE.start_main_~pd2~0#1.base|) (= (ite .cse5 |~#d1~0.offset| |~#d2~0.offset|) |ULTIMATE.start_main_~pd2~0#1.offset|)))) (= (select |#valid| 0) 0) (= |~#d1~0.offset| 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= 8 (select |#length| 5)) (<= .cse2 2147483647) (= (select .cse6 0) 48) (= (select .cse6 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0)))) [2022-11-19 07:39:52,927 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-11-19 07:39:52,927 INFO L899 garLoopResultBuilder]: For program point L35-5(line 35) no Hoare annotation was computed. [2022-11-19 07:39:52,928 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 40 42) no Hoare annotation was computed. [2022-11-19 07:39:52,928 INFO L895 garLoopResultBuilder]: At program point L40-3(lines 40 42) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |ULTIMATE.start_main_~pd2~0#1.base|))) (and (= |~#d2~0.offset| 0) (<= (select (select |#memory_int| |~#d2~0.base|) |~#d2~0.offset|) 2147483647) (= |ULTIMATE.start_main_~pd2~0#1.offset| 0) (or (and (= |~#d2~0.offset| |ULTIMATE.start_main_~pd1~0#1.offset|) (= |~#d2~0.base| |ULTIMATE.start_main_~pd1~0#1.base|)) (and (= |~#d1~0.offset| |ULTIMATE.start_main_~pd1~0#1.offset|) (= |~#d1~0.base| |ULTIMATE.start_main_~pd1~0#1.base|))) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= (select (select |#memory_int| |~#d1~0.base|) |~#d1~0.offset|) 2147483647) (<= |~#d1~0.base| 4) (<= (select (select |#memory_int| |ULTIMATE.start_main_~pa~0#1.base|) |ULTIMATE.start_main_~pa~0#1.offset|) 2147483647) (= |~#d1~0.offset| 0) (or (<= 1 (select .cse0 |ULTIMATE.start_main_~pd2~0#1.offset|)) (not |ULTIMATE.start_main_#t~short15#1|)) (<= (select .cse0 0) 2147483647) (<= 5 |~#d2~0.base|))) [2022-11-19 07:39:52,928 INFO L902 garLoopResultBuilder]: At program point L40-4(lines 40 42) the Hoare annotation is: true [2022-11-19 07:39:52,928 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-11-19 07:39:52,929 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 07:39:52,929 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-11-19 07:39:52,929 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2022-11-19 07:39:52,929 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 37 46) no Hoare annotation was computed. [2022-11-19 07:39:52,929 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-11-19 07:39:52,929 INFO L899 garLoopResultBuilder]: For program point L37-4(lines 37 46) no Hoare annotation was computed. [2022-11-19 07:39:52,929 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:39:52,929 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-11-19 07:39:52,930 INFO L902 garLoopResultBuilder]: At program point L51(lines 32 52) the Hoare annotation is: true [2022-11-19 07:39:52,930 INFO L902 garLoopResultBuilder]: At program point L43(lines 43 45) the Hoare annotation is: true [2022-11-19 07:39:52,930 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2022-11-19 07:39:52,930 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2022-11-19 07:39:52,931 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (let ((.cse5 (select |#memory_int| |~#d1~0.base|)) (.cse6 (select |#memory_int| |~#d2~0.base|))) (let ((.cse0 (select .cse6 |~#d2~0.offset|)) (.cse1 (select .cse5 |~#d1~0.offset|)) (.cse3 (select .cse6 (+ |~#d2~0.offset| 4))) (.cse2 (select .cse5 (+ |~#d1~0.offset| 4))) (.cse4 (select |#memory_int| 1))) (and (<= 0 (+ .cse0 2147483648)) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (<= .cse0 2147483647) (= 5 |~#d2~0.base|) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (<= .cse1 2147483647) (= (select |#valid| 3) 1) (<= 0 (+ 2147483648 .cse1)) (= (select |#length| 4) 8) (<= 0 (+ .cse2 2147483648)) (= (select |#valid| 4) 1) (<= 0 (+ .cse3 2147483648)) (<= .cse3 2147483647) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= |~#d1~0.offset| 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= 8 (select |#length| 5)) (<= .cse2 2147483647) (= (select .cse4 0) 48) (= (select .cse4 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0)))) [2022-11-19 07:39:52,931 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2022-11-19 07:39:52,935 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-19 07:39:52,937 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:39:52,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:39:52 BoogieIcfgContainer [2022-11-19 07:39:52,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:39:52,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:39:52,957 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:39:52,957 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:39:52,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:21" (3/4) ... [2022-11-19 07:39:52,961 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:39:52,967 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure get_dummy [2022-11-19 07:39:52,971 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-19 07:39:52,972 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-19 07:39:52,972 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 07:39:52,972 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:39:53,014 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:39:53,014 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:39:53,015 INFO L158 Benchmark]: Toolchain (without parser) took 32805.45ms. Allocated memory was 136.3MB in the beginning and 360.7MB in the end (delta: 224.4MB). Free memory was 104.3MB in the beginning and 135.3MB in the end (delta: -31.1MB). Peak memory consumption was 192.8MB. Max. memory is 16.1GB. [2022-11-19 07:39:53,015 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 88.1MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:39:53,016 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.13ms. Allocated memory is still 136.3MB. Free memory was 104.0MB in the beginning and 114.7MB in the end (delta: -10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:39:53,016 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.53ms. Allocated memory is still 136.3MB. Free memory was 114.7MB in the beginning and 112.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:39:53,016 INFO L158 Benchmark]: Boogie Preprocessor took 31.85ms. Allocated memory is still 136.3MB. Free memory was 112.6MB in the beginning and 111.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:39:53,017 INFO L158 Benchmark]: RCFGBuilder took 447.36ms. Allocated memory is still 136.3MB. Free memory was 111.6MB in the beginning and 96.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-19 07:39:53,017 INFO L158 Benchmark]: TraceAbstraction took 31751.76ms. Allocated memory was 136.3MB in the beginning and 360.7MB in the end (delta: 224.4MB). Free memory was 95.9MB in the beginning and 138.5MB in the end (delta: -42.6MB). Peak memory consumption was 183.3MB. Max. memory is 16.1GB. [2022-11-19 07:39:53,018 INFO L158 Benchmark]: Witness Printer took 57.90ms. Allocated memory is still 360.7MB. Free memory was 138.5MB in the beginning and 135.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:39:53,020 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 88.1MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 456.13ms. Allocated memory is still 136.3MB. Free memory was 104.0MB in the beginning and 114.7MB in the end (delta: -10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.53ms. Allocated memory is still 136.3MB. Free memory was 114.7MB in the beginning and 112.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.85ms. Allocated memory is still 136.3MB. Free memory was 112.6MB in the beginning and 111.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 447.36ms. Allocated memory is still 136.3MB. Free memory was 111.6MB in the beginning and 96.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 31751.76ms. Allocated memory was 136.3MB in the beginning and 360.7MB in the end (delta: 224.4MB). Free memory was 95.9MB in the beginning and 138.5MB in the end (delta: -42.6MB). Peak memory consumption was 183.3MB. Max. memory is 16.1GB. * Witness Printer took 57.90ms. Allocated memory is still 360.7MB. Free memory was 138.5MB in the beginning and 135.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: 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 2 procedures, 25 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 31.6s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 123 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 143 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 164 IncrementalHoareTripleChecker+Unchecked, 92 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 186 IncrementalHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 51 mSDtfsCounter, 186 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 83 SyntacticMatches, 6 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1731 ImplicationChecksByTransitivity, 18.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 16 NumberOfFragments, 639 HoareAnnotationTreeSize, 10 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 981 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 196 ConstructedInterpolants, 13 QuantifiedInterpolants, 3398 SizeOfPredicates, 43 NumberOfNonLiveVariables, 417 ConjunctsInSsa, 129 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 46/75 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: 3.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 30, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 20, TOOLS_POST_TIME: 1.7s, TOOLS_POST_CALL_APPLICATIONS: 18, TOOLS_POST_CALL_TIME: 0.2s, TOOLS_POST_RETURN_APPLICATIONS: 12, TOOLS_POST_RETURN_TIME: 0.6s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 50, TOOLS_QUANTIFIERELIM_TIME: 2.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 74, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 16, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 30, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 12, CALL_SUMMARIZER_CACHE_MISSES: 2, 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: 320, DAG_COMPRESSION_RETAINED_NODES: 80, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((((d2 == 0 && unknown-#memory_int-unknown[d2][d2] <= 2147483647) && pd2 == 0) && ((d2 == pd1 && d2 == pd1) || (d1 == pd1 && d1 == pd1))) && 0 <= i + 2147483648) && unknown-#memory_int-unknown[d1][d1] <= 2147483647) && d1 <= 4) && unknown-#memory_int-unknown[pa][pa] <= 2147483647) && d1 == 0) && (1 <= unknown-#memory_int-unknown[pd2][pd2] || !aux-pd1 != 0 && pd1 == pd2 && (*pd2).a > 0-aux)) && unknown-#memory_int-unknown[pd2][0] <= 2147483647) && 5 <= d2 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 07:39:53,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81806ed2-53e6-43f8-a039-90af9647d235/bin/utaipan-I9t0OCRTmS/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