./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs --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 2d1f4ceaaf4d72804561a034d923aa8c5ea2790a ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_49| --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:49:04,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:49:04,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:49:04,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:49:04,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:49:04,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:49:04,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:49:04,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:49:04,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:49:04,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:49:04,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:49:04,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:49:04,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:49:04,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:49:04,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:49:04,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:49:04,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:49:04,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:49:04,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:49:04,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:49:04,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:49:04,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:49:04,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:49:04,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:49:04,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:49:04,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:49:04,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:49:04,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:49:04,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:49:04,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:49:04,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:49:04,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:49:04,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:49:04,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:49:04,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:49:04,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:49:04,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:49:04,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:49:04,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:49:04,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:49:04,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:49:04,741 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-16 02:49:04,802 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:49:04,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:49:04,804 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:49:04,805 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:49:04,805 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:49:04,805 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:49:04,806 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:49:04,806 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:49:04,814 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:49:04,814 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:49:04,815 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:49:04,816 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:49:04,816 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:49:04,816 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:49:04,817 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:49:04,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:49:04,818 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:49:04,818 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 02:49:04,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:49:04,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:49:04,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:49:04,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:49:04,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:49:04,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:49:04,820 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-16 02:49:04,821 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:49:04,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:49:04,821 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:49:04,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:49:04,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:49:04,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:49:04,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:49:04,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:49:04,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:49:04,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:49:04,824 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:49:04,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:49:04,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:49:04,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:49:04,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:49:04,826 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d1f4ceaaf4d72804561a034d923aa8c5ea2790a [2021-10-16 02:49:05,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:49:05,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:49:05,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:49:05,286 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:49:05,287 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:49:05,288 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i [2021-10-16 02:49:05,380 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/data/8afc0e69b/98a1a17ec08f433e9379db209be10bfa/FLAG4e8716155 [2021-10-16 02:49:06,077 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:49:06,078 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i [2021-10-16 02:49:06,099 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/data/8afc0e69b/98a1a17ec08f433e9379db209be10bfa/FLAG4e8716155 [2021-10-16 02:49:06,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/data/8afc0e69b/98a1a17ec08f433e9379db209be10bfa [2021-10-16 02:49:06,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:49:06,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:49:06,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:49:06,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:49:06,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:49:06,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:49:06" (1/1) ... [2021-10-16 02:49:06,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e970618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:06, skipping insertion in model container [2021-10-16 02:49:06,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:49:06" (1/1) ... [2021-10-16 02:49:06,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:49:06,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:49:06,888 WARN L228 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_db661530-7939-464c-8826-48b850f6fdd8/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i[33021,33034] [2021-10-16 02:49:07,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:49:07,035 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:49:07,085 WARN L228 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_db661530-7939-464c-8826-48b850f6fdd8/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i[33021,33034] [2021-10-16 02:49:07,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:49:07,281 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:49:07,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:07 WrapperNode [2021-10-16 02:49:07,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:49:07,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:49:07,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:49:07,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:49:07,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:07" (1/1) ... [2021-10-16 02:49:07,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:07" (1/1) ... [2021-10-16 02:49:07,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:49:07,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:49:07,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:49:07,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:49:07,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:07" (1/1) ... [2021-10-16 02:49:07,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:07" (1/1) ... [2021-10-16 02:49:07,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:07" (1/1) ... [2021-10-16 02:49:07,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:07" (1/1) ... [2021-10-16 02:49:07,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:07" (1/1) ... [2021-10-16 02:49:07,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:07" (1/1) ... [2021-10-16 02:49:07,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:07" (1/1) ... [2021-10-16 02:49:07,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:49:07,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:49:07,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:49:07,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:49:07,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:07" (1/1) ... [2021-10-16 02:49:07,668 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:49:07,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:49:07,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:49:07,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:49:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 02:49:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:49:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 02:49:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-16 02:49:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:49:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-16 02:49:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:49:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:49:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:49:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:49:15,809 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:49:15,810 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-10-16 02:49:15,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:49:15 BoogieIcfgContainer [2021-10-16 02:49:15,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:49:15,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:49:15,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:49:15,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:49:15,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:49:06" (1/3) ... [2021-10-16 02:49:15,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d548ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:49:15, skipping insertion in model container [2021-10-16 02:49:15,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:07" (2/3) ... [2021-10-16 02:49:15,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d548ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:49:15, skipping insertion in model container [2021-10-16 02:49:15,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:49:15" (3/3) ... [2021-10-16 02:49:15,827 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test4-1.i [2021-10-16 02:49:15,834 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:49:15,835 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-16 02:49:15,909 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:49:15,916 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:49:15,916 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-16 02:49:15,936 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 96 states have (on average 1.875) internal successors, (180), 102 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:15,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-16 02:49:15,941 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:49:15,942 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-16 02:49:15,943 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:49:15,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:49:15,949 INFO L82 PathProgramCache]: Analyzing trace with hash 936931, now seen corresponding path program 1 times [2021-10-16 02:49:15,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:49:15,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418457022] [2021-10-16 02:49:15,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:15,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:49:16,089 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:49:16,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [799447858] [2021-10-16 02:49:16,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:16,090 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:49:16,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:49:16,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:49:16,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:49:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:49:16,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:49:16,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:49:16,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:49:16,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:49:16,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:49:16,429 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:49:16,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418457022] [2021-10-16 02:49:16,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:49:16,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799447858] [2021-10-16 02:49:16,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799447858] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:49:16,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:49:16,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-16 02:49:16,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654417370] [2021-10-16 02:49:16,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:49:16,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:49:16,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:49:16,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:49:16,459 INFO L87 Difference]: Start difference. First operand has 103 states, 96 states have (on average 1.875) internal successors, (180), 102 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:16,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:49:16,561 INFO L93 Difference]: Finished difference Result 298 states and 532 transitions. [2021-10-16 02:49:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:49:16,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-16 02:49:16,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:49:16,575 INFO L225 Difference]: With dead ends: 298 [2021-10-16 02:49:16,575 INFO L226 Difference]: Without dead ends: 195 [2021-10-16 02:49:16,578 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:49:16,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-10-16 02:49:16,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 103. [2021-10-16 02:49:16,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 98 states have (on average 1.2244897959183674) internal successors, (120), 102 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:16,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 120 transitions. [2021-10-16 02:49:16,629 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 120 transitions. Word has length 3 [2021-10-16 02:49:16,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:49:16,629 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 120 transitions. [2021-10-16 02:49:16,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:16,630 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 120 transitions. [2021-10-16 02:49:16,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-16 02:49:16,632 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:49:16,633 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:49:16,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:49:16,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-16 02:49:16,850 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:49:16,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:49:16,851 INFO L82 PathProgramCache]: Analyzing trace with hash 492482533, now seen corresponding path program 1 times [2021-10-16 02:49:16,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:49:16,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494220603] [2021-10-16 02:49:16,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:16,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:49:16,888 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:49:16,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134501390] [2021-10-16 02:49:16,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:16,891 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:49:16,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:49:16,892 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:49:16,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 02:49:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:49:17,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:49:17,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:49:17,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:49:17,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:49:17,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:49:17,746 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:49:17,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494220603] [2021-10-16 02:49:17,747 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:49:17,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134501390] [2021-10-16 02:49:17,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134501390] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:49:17,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:49:17,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4 [2021-10-16 02:49:17,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038490353] [2021-10-16 02:49:17,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:49:17,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:49:17,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:49:17,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:49:17,762 INFO L87 Difference]: Start difference. First operand 103 states and 120 transitions. Second operand has 6 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:17,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:49:17,893 INFO L93 Difference]: Finished difference Result 200 states and 235 transitions. [2021-10-16 02:49:17,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 02:49:17,894 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-10-16 02:49:17,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:49:17,897 INFO L225 Difference]: With dead ends: 200 [2021-10-16 02:49:17,897 INFO L226 Difference]: Without dead ends: 199 [2021-10-16 02:49:17,898 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 36.2ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:49:17,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-10-16 02:49:17,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 102. [2021-10-16 02:49:17,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 98 states have (on average 1.2142857142857142) internal successors, (119), 101 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:17,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 119 transitions. [2021-10-16 02:49:17,916 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 119 transitions. Word has length 48 [2021-10-16 02:49:17,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:49:17,917 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 119 transitions. [2021-10-16 02:49:17,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:17,918 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 119 transitions. [2021-10-16 02:49:17,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-16 02:49:17,920 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:49:17,920 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:49:17,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:49:18,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:49:18,139 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:49:18,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:49:18,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1912909868, now seen corresponding path program 1 times [2021-10-16 02:49:18,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:49:18,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113865040] [2021-10-16 02:49:18,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:18,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:49:18,198 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:49:18,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1381532529] [2021-10-16 02:49:18,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:18,203 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:49:18,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:49:18,206 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:49:18,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-16 02:49:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:49:18,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:49:18,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:49:18,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:49:18,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:49:19,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:49:19,019 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:49:19,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113865040] [2021-10-16 02:49:19,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:49:19,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381532529] [2021-10-16 02:49:19,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381532529] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:49:19,020 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:49:19,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4 [2021-10-16 02:49:19,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006220471] [2021-10-16 02:49:19,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:49:19,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:49:19,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:49:19,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:49:19,024 INFO L87 Difference]: Start difference. First operand 102 states and 119 transitions. Second operand has 6 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:23,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:49:23,956 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2021-10-16 02:49:23,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:49:23,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-10-16 02:49:23,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:49:23,958 INFO L225 Difference]: With dead ends: 102 [2021-10-16 02:49:23,958 INFO L226 Difference]: Without dead ends: 101 [2021-10-16 02:49:23,959 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 23.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:49:23,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-16 02:49:23,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-10-16 02:49:23,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 98 states have (on average 1.2040816326530612) internal successors, (118), 100 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:23,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 118 transitions. [2021-10-16 02:49:23,975 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 118 transitions. Word has length 49 [2021-10-16 02:49:23,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:49:23,975 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 118 transitions. [2021-10-16 02:49:23,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:23,976 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 118 transitions. [2021-10-16 02:49:23,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-16 02:49:23,978 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:49:23,978 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:49:24,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-16 02:49:24,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:49:24,194 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:49:24,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:49:24,195 INFO L82 PathProgramCache]: Analyzing trace with hash -60346869, now seen corresponding path program 1 times [2021-10-16 02:49:24,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:49:24,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617043625] [2021-10-16 02:49:24,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:24,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:49:24,225 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:49:24,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [877076207] [2021-10-16 02:49:24,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:24,226 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:49:24,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:49:24,241 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:49:24,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-16 02:49:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:49:24,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:49:24,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:49:25,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:49:25,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:49:25,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:49:25,429 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:49:25,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617043625] [2021-10-16 02:49:25,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:49:25,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877076207] [2021-10-16 02:49:25,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877076207] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:49:25,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:49:25,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:49:25,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419443810] [2021-10-16 02:49:25,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:49:25,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:49:25,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:49:25,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:49:25,435 INFO L87 Difference]: Start difference. First operand 101 states and 118 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:25,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:49:25,555 INFO L93 Difference]: Finished difference Result 256 states and 300 transitions. [2021-10-16 02:49:25,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:49:25,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-10-16 02:49:25,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:49:25,560 INFO L225 Difference]: With dead ends: 256 [2021-10-16 02:49:25,560 INFO L226 Difference]: Without dead ends: 158 [2021-10-16 02:49:25,561 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:49:25,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-10-16 02:49:25,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2021-10-16 02:49:25,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 155 states have (on average 1.1870967741935483) internal successors, (184), 157 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:25,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 184 transitions. [2021-10-16 02:49:25,582 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 184 transitions. Word has length 51 [2021-10-16 02:49:25,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:49:25,583 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 184 transitions. [2021-10-16 02:49:25,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:25,583 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 184 transitions. [2021-10-16 02:49:25,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-16 02:49:25,585 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:49:25,586 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:49:25,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:49:25,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:49:25,810 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:49:25,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:49:25,810 INFO L82 PathProgramCache]: Analyzing trace with hash 243552750, now seen corresponding path program 1 times [2021-10-16 02:49:25,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:49:25,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483183765] [2021-10-16 02:49:25,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:25,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:49:25,837 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:49:25,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1081635528] [2021-10-16 02:49:25,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:25,837 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:49:25,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:49:25,839 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:49:25,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-16 02:49:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:49:26,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:49:26,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:49:26,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:49:26,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:49:26,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:49:26,520 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:49:26,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483183765] [2021-10-16 02:49:26,521 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:49:26,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081635528] [2021-10-16 02:49:26,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081635528] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:49:26,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:49:26,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:49:26,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50871564] [2021-10-16 02:49:26,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:49:26,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:49:26,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:49:26,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:49:26,524 INFO L87 Difference]: Start difference. First operand 158 states and 184 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:26,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:49:26,744 INFO L93 Difference]: Finished difference Result 306 states and 367 transitions. [2021-10-16 02:49:26,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:49:26,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-10-16 02:49:26,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:49:26,746 INFO L225 Difference]: With dead ends: 306 [2021-10-16 02:49:26,747 INFO L226 Difference]: Without dead ends: 170 [2021-10-16 02:49:26,748 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:49:26,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-10-16 02:49:26,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2021-10-16 02:49:26,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 167 states have (on average 1.1736526946107784) internal successors, (196), 169 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:26,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 196 transitions. [2021-10-16 02:49:26,769 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 196 transitions. Word has length 56 [2021-10-16 02:49:26,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:49:26,769 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 196 transitions. [2021-10-16 02:49:26,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:26,770 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 196 transitions. [2021-10-16 02:49:26,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-16 02:49:26,771 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:49:26,772 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:49:26,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:49:26,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:49:26,986 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:49:26,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:49:26,987 INFO L82 PathProgramCache]: Analyzing trace with hash 33232910, now seen corresponding path program 1 times [2021-10-16 02:49:26,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:49:26,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253760034] [2021-10-16 02:49:26,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:26,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:49:27,034 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:49:27,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1669827636] [2021-10-16 02:49:27,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:27,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:49:27,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:49:27,044 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:49:27,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-16 02:49:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:49:27,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:49:27,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:49:27,774 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:49:27,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:49:27,962 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:49:27,963 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:49:27,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253760034] [2021-10-16 02:49:27,963 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:49:27,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669827636] [2021-10-16 02:49:27,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669827636] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:49:27,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1841501686] [2021-10-16 02:49:27,990 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2021-10-16 02:49:27,991 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:49:27,996 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:49:28,002 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:49:28,003 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:49:28,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:49:28,185 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:49:28,185 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:49:28,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-10-16 02:49:28,189 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:49:28,190 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:49:28,191 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-16 02:49:28,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-10-16 02:49:28,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:49:28,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:49:28,265 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-10-16 02:49:28,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 26 [2021-10-16 02:49:28,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:49:28,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-10-16 02:49:28,272 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:49:28,274 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-10-16 02:49:28,274 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 02:49:28,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:49:28,301 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:49:28,302 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:49:28,304 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-10-16 02:49:28,304 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 02:49:28,305 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:104, output treesize:92 [2021-10-16 02:49:28,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-16 02:49:28,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:49:28,530 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#length_49| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-16 02:49:28,535 INFO L168 Benchmark]: Toolchain (without parser) took 22265.33 ms. Allocated memory was 92.3 MB in the beginning and 211.8 MB in the end (delta: 119.5 MB). Free memory was 54.7 MB in the beginning and 109.5 MB in the end (delta: -54.9 MB). Peak memory consumption was 64.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:49:28,535 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 64.4 MB in the beginning and 64.3 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:49:28,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1008.46 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 54.3 MB in the beginning and 63.0 MB in the end (delta: -8.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:49:28,537 INFO L168 Benchmark]: Boogie Procedure Inliner took 181.11 ms. Allocated memory is still 111.1 MB. Free memory was 63.0 MB in the beginning and 55.7 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:49:28,537 INFO L168 Benchmark]: Boogie Preprocessor took 171.56 ms. Allocated memory is still 111.1 MB. Free memory was 55.1 MB in the beginning and 46.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:49:28,538 INFO L168 Benchmark]: RCFGBuilder took 8164.47 ms. Allocated memory was 111.1 MB in the beginning and 157.3 MB in the end (delta: 46.1 MB). Free memory was 46.7 MB in the beginning and 101.1 MB in the end (delta: -54.4 MB). Peak memory consumption was 43.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:49:28,539 INFO L168 Benchmark]: TraceAbstraction took 12717.69 ms. Allocated memory was 157.3 MB in the beginning and 211.8 MB in the end (delta: 54.5 MB). Free memory was 100.1 MB in the beginning and 109.5 MB in the end (delta: -9.4 MB). Peak memory consumption was 44.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:49:28,542 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 64.4 MB in the beginning and 64.3 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1008.46 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 54.3 MB in the beginning and 63.0 MB in the end (delta: -8.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 181.11 ms. Allocated memory is still 111.1 MB. Free memory was 63.0 MB in the beginning and 55.7 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 171.56 ms. Allocated memory is still 111.1 MB. Free memory was 55.1 MB in the beginning and 46.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 8164.47 ms. Allocated memory was 111.1 MB in the beginning and 157.3 MB in the end (delta: 46.1 MB). Free memory was 46.7 MB in the beginning and 101.1 MB in the end (delta: -54.4 MB). Peak memory consumption was 43.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12717.69 ms. Allocated memory was 157.3 MB in the beginning and 211.8 MB in the end (delta: 54.5 MB). Free memory was 100.1 MB in the beginning and 109.5 MB in the end (delta: -9.4 MB). Peak memory consumption was 44.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_49| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#length_49|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 02:49:28,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db661530-7939-464c-8826-48b850f6fdd8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...