./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i --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_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/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_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/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_93982341-2e18-4d39-a1b0-ed9b05797397/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 dbea62dc4a872959247118f049e63d406eb1e848bb1ed8397f1082fdec77074c --- 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 08:24:55,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:24:55,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:24:55,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:24:55,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:24:55,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:24:55,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:24:55,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:24:55,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:24:55,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:24:55,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:24:55,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:24:55,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:24:55,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:24:55,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:24:55,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:24:55,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:24:55,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:24:55,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:24:55,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:24:55,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:24:55,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:24:55,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:24:55,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:24:55,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:24:55,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:24:55,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:24:55,576 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:24:55,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:24:55,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:24:55,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:24:55,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:24:55,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:24:55,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:24:55,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:24:55,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:24:55,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:24:55,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:24:55,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:24:55,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:24:55,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:24:55,589 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 08:24:55,632 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:24:55,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:24:55,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:24:55,633 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:24:55,633 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:24:55,634 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:24:55,634 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:24:55,634 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:24:55,634 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:24:55,634 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:24:55,635 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:24:55,635 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:24:55,636 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:24:55,636 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:24:55,636 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:24:55,636 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:24:55,636 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:24:55,637 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:24:55,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:24:55,637 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:24:55,638 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:24:55,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:24:55,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:24:55,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:24:55,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:24:55,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:24:55,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:24:55,640 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 08:24:55,640 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:24:55,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:24:55,641 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:24:55,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:24:55,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:24:55,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:24:55,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:24:55,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:24:55,642 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:24:55,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:24:55,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:24:55,643 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:24:55,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:24:55,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:24:55,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:24:55,643 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_93982341-2e18-4d39-a1b0-ed9b05797397/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbea62dc4a872959247118f049e63d406eb1e848bb1ed8397f1082fdec77074c [2022-11-19 08:24:55,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:24:56,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:24:56,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:24:56,005 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:24:56,006 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:24:56,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i [2022-11-19 08:24:56,075 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/data/7043a186a/52031fd7009842e5977375fec4a359cc/FLAGa3b3c9d5d [2022-11-19 08:24:56,701 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:24:56,701 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i [2022-11-19 08:24:56,727 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/data/7043a186a/52031fd7009842e5977375fec4a359cc/FLAGa3b3c9d5d [2022-11-19 08:24:56,945 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/data/7043a186a/52031fd7009842e5977375fec4a359cc [2022-11-19 08:24:56,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:24:56,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:24:56,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:24:56,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:24:56,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:24:56,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:24:56" (1/1) ... [2022-11-19 08:24:56,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e0c31f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:56, skipping insertion in model container [2022-11-19 08:24:56,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:24:56" (1/1) ... [2022-11-19 08:24:56,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:24:57,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:24:57,649 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_93982341-2e18-4d39-a1b0-ed9b05797397/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i[37019,37032] [2022-11-19 08:24:57,780 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_93982341-2e18-4d39-a1b0-ed9b05797397/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i[47352,47365] [2022-11-19 08:24:57,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:24:57,812 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:24:57,865 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_93982341-2e18-4d39-a1b0-ed9b05797397/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i[37019,37032] [2022-11-19 08:24:57,925 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_93982341-2e18-4d39-a1b0-ed9b05797397/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i[47352,47365] [2022-11-19 08:24:57,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:24:57,966 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:24:57,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:57 WrapperNode [2022-11-19 08:24:57,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:24:57,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:24:57,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:24:57,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:24:57,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:57" (1/1) ... [2022-11-19 08:24:58,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:57" (1/1) ... [2022-11-19 08:24:58,066 INFO L138 Inliner]: procedures = 208, calls = 235, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 888 [2022-11-19 08:24:58,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:24:58,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:24:58,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:24:58,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:24:58,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:57" (1/1) ... [2022-11-19 08:24:58,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:57" (1/1) ... [2022-11-19 08:24:58,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:57" (1/1) ... [2022-11-19 08:24:58,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:57" (1/1) ... [2022-11-19 08:24:58,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:57" (1/1) ... [2022-11-19 08:24:58,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:57" (1/1) ... [2022-11-19 08:24:58,216 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:57" (1/1) ... [2022-11-19 08:24:58,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:57" (1/1) ... [2022-11-19 08:24:58,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:24:58,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:24:58,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:24:58,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:24:58,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:57" (1/1) ... [2022-11-19 08:24:58,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:24:58,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:24:58,262 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:24:58,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:24:58,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:24:58,338 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:24:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:24:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 08:24:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:24:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:24:58,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:24:58,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 08:24:58,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 08:24:58,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:24:58,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:24:58,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:24:58,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:24:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:24:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:24:58,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:24:58,606 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:24:58,614 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:25:00,039 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:25:00,387 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:25:00,388 INFO L300 CfgBuilder]: Removed 54 assume(true) statements. [2022-11-19 08:25:00,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:25:00 BoogieIcfgContainer [2022-11-19 08:25:00,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:25:00,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:25:00,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:25:00,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:25:00,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:24:56" (1/3) ... [2022-11-19 08:25:00,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5865a582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:25:00, skipping insertion in model container [2022-11-19 08:25:00,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:57" (2/3) ... [2022-11-19 08:25:00,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5865a582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:25:00, skipping insertion in model container [2022-11-19 08:25:00,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:25:00" (3/3) ... [2022-11-19 08:25:00,407 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test2-1.i [2022-11-19 08:25:00,426 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:25:00,426 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-19 08:25:00,517 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:25:00,524 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;@39697cb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:25:00,524 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-19 08:25:00,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 100 states have (on average 1.82) internal successors, (182), 113 states have internal predecessors, (182), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 08:25:00,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 08:25:00,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:25:00,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 08:25:00,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 08:25:00,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:25:00,542 INFO L85 PathProgramCache]: Analyzing trace with hash 22737132, now seen corresponding path program 1 times [2022-11-19 08:25:00,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:25:00,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584820563] [2022-11-19 08:25:00,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:00,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:25:00,702 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:25:00,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [102104545] [2022-11-19 08:25:00,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:00,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:25:00,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:25:00,711 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:25:00,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:25:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:25:00,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-19 08:25:00,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:25:00,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:25:00,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:25:01,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:01,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 08:25:01,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:25:01,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:25:01,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:25:01,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584820563] [2022-11-19 08:25:01,053 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:25:01,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102104545] [2022-11-19 08:25:01,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102104545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:25:01,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:25:01,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:25:01,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828265255] [2022-11-19 08:25:01,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:25:01,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:25:01,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:25:01,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:25:01,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:25:01,101 INFO L87 Difference]: Start difference. First operand has 119 states, 100 states have (on average 1.82) internal successors, (182), 113 states have internal predecessors, (182), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:25:03,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:25:03,244 INFO L93 Difference]: Finished difference Result 308 states and 522 transitions. [2022-11-19 08:25:03,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:25:03,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-19 08:25:03,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:25:03,260 INFO L225 Difference]: With dead ends: 308 [2022-11-19 08:25:03,260 INFO L226 Difference]: Without dead ends: 187 [2022-11-19 08:25:03,263 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 08:25:03,267 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 75 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:25:03,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 333 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-19 08:25:03,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-19 08:25:03,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 121. [2022-11-19 08:25:03,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 103 states have (on average 1.2718446601941749) internal successors, (131), 115 states have internal predecessors, (131), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 08:25:03,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 147 transitions. [2022-11-19 08:25:03,317 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 147 transitions. Word has length 4 [2022-11-19 08:25:03,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:25:03,318 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 147 transitions. [2022-11-19 08:25:03,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:25:03,319 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 147 transitions. [2022-11-19 08:25:03,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:25:03,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:25:03,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:25:03,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:25:03,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 08:25:03,527 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 08:25:03,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:25:03,528 INFO L85 PathProgramCache]: Analyzing trace with hash 196565253, now seen corresponding path program 1 times [2022-11-19 08:25:03,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:25:03,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196787354] [2022-11-19 08:25:03,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:03,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:25:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:25:04,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:25:04,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:25:04,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196787354] [2022-11-19 08:25:04,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196787354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:25:04,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:25:04,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:25:04,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972003616] [2022-11-19 08:25:04,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:25:04,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:25:04,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:25:04,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:25:04,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:25:04,034 INFO L87 Difference]: Start difference. First operand 121 states and 147 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 08:25:05,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:25:05,598 INFO L93 Difference]: Finished difference Result 230 states and 289 transitions. [2022-11-19 08:25:05,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:25:05,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2022-11-19 08:25:05,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:25:05,604 INFO L225 Difference]: With dead ends: 230 [2022-11-19 08:25:05,604 INFO L226 Difference]: Without dead ends: 174 [2022-11-19 08:25:05,605 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 08:25:05,606 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 61 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:25:05,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 340 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-19 08:25:05,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-19 08:25:05,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 121. [2022-11-19 08:25:05,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 103 states have (on average 1.2621359223300972) internal successors, (130), 115 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 08:25:05,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 146 transitions. [2022-11-19 08:25:05,619 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 146 transitions. Word has length 20 [2022-11-19 08:25:05,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:25:05,620 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 146 transitions. [2022-11-19 08:25:05,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 08:25:05,620 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 146 transitions. [2022-11-19 08:25:05,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 08:25:05,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:25:05,621 INFO L195 NwaCegarLoop]: 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] [2022-11-19 08:25:05,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:25:05,622 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 08:25:05,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:25:05,623 INFO L85 PathProgramCache]: Analyzing trace with hash 592905191, now seen corresponding path program 1 times [2022-11-19 08:25:05,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:25:05,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968875747] [2022-11-19 08:25:05,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:05,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:25:05,776 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:25:05,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [364459990] [2022-11-19 08:25:05,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:05,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:25:05,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:25:05,778 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:25:05,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:25:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:25:06,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:25:06,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:25:06,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:25:06,595 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:25:06,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:25:06,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968875747] [2022-11-19 08:25:06,596 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:25:06,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364459990] [2022-11-19 08:25:06,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364459990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:25:06,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:25:06,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:25:06,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744497328] [2022-11-19 08:25:06,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:25:06,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:25:06,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:25:06,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:25:06,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:25:06,599 INFO L87 Difference]: Start difference. First operand 121 states and 146 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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 08:25:08,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:25:08,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:25:08,395 INFO L93 Difference]: Finished difference Result 288 states and 352 transitions. [2022-11-19 08:25:08,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:25:08,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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 28 [2022-11-19 08:25:08,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:25:08,401 INFO L225 Difference]: With dead ends: 288 [2022-11-19 08:25:08,401 INFO L226 Difference]: Without dead ends: 172 [2022-11-19 08:25:08,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 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 08:25:08,403 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 49 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:25:08,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 256 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-19 08:25:08,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-11-19 08:25:08,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 168. [2022-11-19 08:25:08,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 145 states have (on average 1.2620689655172415) internal successors, (183), 162 states have internal predecessors, (183), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 08:25:08,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 209 transitions. [2022-11-19 08:25:08,447 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 209 transitions. Word has length 28 [2022-11-19 08:25:08,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:25:08,447 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 209 transitions. [2022-11-19 08:25:08,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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 08:25:08,448 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 209 transitions. [2022-11-19 08:25:08,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-19 08:25:08,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:25:08,450 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 08:25:08,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:25:08,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:25:08,651 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 08:25:08,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:25:08,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1496687605, now seen corresponding path program 1 times [2022-11-19 08:25:08,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:25:08,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574954456] [2022-11-19 08:25:08,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:08,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:25:08,714 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:25:08,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1077655035] [2022-11-19 08:25:08,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:08,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:25:08,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:25:08,716 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:25:08,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:25:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:25:39,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:25:39,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:25:39,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:25:39,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:25:39,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:25:39,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574954456] [2022-11-19 08:25:39,121 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:25:39,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077655035] [2022-11-19 08:25:39,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077655035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:25:39,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:25:39,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:25:39,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905877254] [2022-11-19 08:25:39,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:25:39,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:25:39,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:25:39,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:25:39,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:25:39,124 INFO L87 Difference]: Start difference. First operand 168 states and 209 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:25:41,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:25:41,307 INFO L93 Difference]: Finished difference Result 320 states and 404 transitions. [2022-11-19 08:25:41,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:25:41,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2022-11-19 08:25:41,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:25:41,315 INFO L225 Difference]: With dead ends: 320 [2022-11-19 08:25:41,315 INFO L226 Difference]: Without dead ends: 170 [2022-11-19 08:25:41,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 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 08:25:41,317 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 1 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:25:41,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 377 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-19 08:25:41,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-19 08:25:41,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-11-19 08:25:41,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 146 states have (on average 1.2671232876712328) internal successors, (185), 164 states have internal predecessors, (185), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-19 08:25:41,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 212 transitions. [2022-11-19 08:25:41,352 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 212 transitions. Word has length 41 [2022-11-19 08:25:41,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:25:41,353 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 212 transitions. [2022-11-19 08:25:41,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:25:41,354 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 212 transitions. [2022-11-19 08:25:41,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-19 08:25:41,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:25:41,355 INFO L195 NwaCegarLoop]: 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] [2022-11-19 08:25:41,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:25:41,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:25:41,571 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 08:25:41,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:25:41,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1899561301, now seen corresponding path program 1 times [2022-11-19 08:25:41,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:25:41,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005071949] [2022-11-19 08:25:41,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:41,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:25:41,667 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:25:41,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1637205737] [2022-11-19 08:25:41,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:41,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:25:41,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:25:41,671 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:25:41,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93982341-2e18-4d39-a1b0-ed9b05797397/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:26:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:26:10,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 08:26:10,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:26:10,789 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:26:10,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:26:10,902 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:26:10,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:26:10,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005071949] [2022-11-19 08:26:10,902 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:26:10,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637205737] [2022-11-19 08:26:10,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637205737] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:26:10,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [564715728] [2022-11-19 08:26:10,923 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-11-19 08:26:10,923 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:26:10,927 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:26:10,932 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:26:10,932 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:26:10,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:10,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-19 08:26:11,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1 [2022-11-19 08:26:11,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,023 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 08:26:11,024 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-19 08:26:11,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,052 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:26:11,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-19 08:26:11,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:26:11,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,133 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:26:11,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 08:26:11,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 38 [2022-11-19 08:26:11,164 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 15 treesize of output 1 [2022-11-19 08:26:11,173 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 15 treesize of output 1 [2022-11-19 08:26:11,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-19 08:26:11,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 64 [2022-11-19 08:26:11,254 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 19 treesize of output 1 [2022-11-19 08:26:11,266 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 19 treesize of output 1 [2022-11-19 08:26:11,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:26:11,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:26:11,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896995 treesize of output 5376286 [2022-11-19 08:26:11,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:11,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9896993 treesize of output 5376298 [2022-11-19 08:26:12,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:26:12,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-19 08:26:12,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-19 08:26:12,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:26:12,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:26:12,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,341 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 08:26:12,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-19 08:26:12,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-11-19 08:26:12,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-19 08:26:12,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:26:12,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 08:26:12,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 08:26:12,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 08:26:12,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-19 08:26:12,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 08:26:12,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 08:26:12,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 08:26:12,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 08:26:12,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 08:26:12,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 08:26:12,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:12,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-19 08:26:12,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 08:26:13,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:13,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:13,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:13,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:13,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:13,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:13,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:13,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:13,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:13,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:13,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:13,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:13,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:13,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:13,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:13,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:13,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:13,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-19 08:26:13,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 08:26:13,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 08:26:14,986 INFO L217 Elim1Store]: Index analysis took 1381 ms [2022-11-19 08:26:19,770 INFO L321 Elim1Store]: treesize reduction 142, result has 15.5 percent of original size [2022-11-19 08:26:19,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 9519772 treesize of output 9519776 [2022-11-19 08:26:20,719 INFO L217 Elim1Store]: Index analysis took 789 ms [2022-11-19 08:26:23,608 INFO L321 Elim1Store]: treesize reduction 206, result has 11.2 percent of original size [2022-11-19 08:26:23,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519777 treesize of output 9519780 [2022-11-19 08:26:32,395 WARN L233 SmtUtils]: Spent 8.47s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:26:32,395 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-19 08:26:32,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1481 [2022-11-19 08:26:49,261 WARN L233 SmtUtils]: Spent 16.71s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:26:49,262 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-19 08:26:49,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1824 [2022-11-19 08:26:49,963 INFO L217 Elim1Store]: Index analysis took 474 ms [2022-11-19 08:27:07,967 WARN L233 SmtUtils]: Spent 17.39s on a formula simplification. DAG size of input: 249 DAG size of output: 147 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:27:07,969 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-11-19 08:27:07,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 2097 [2022-11-19 08:27:10,428 INFO L217 Elim1Store]: Index analysis took 1167 ms [2022-11-19 08:27:11,129 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-19 08:27:11,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 91 treesize of output 73 [2022-11-19 08:27:11,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 08:27:12,229 INFO L217 Elim1Store]: Index analysis took 473 ms [2022-11-19 08:27:12,901 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:27:12,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 94 [2022-11-19 08:27:14,982 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:27:14,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 13 [2022-11-19 08:27:15,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:27:15,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-11-19 08:27:15,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:27:15,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2022-11-19 08:27:15,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:27:15,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:27:15,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2022-11-19 08:27:15,357 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:27:15,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:27:15,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-11-19 08:27:15,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:27:15,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-11-19 08:27:23,529 INFO L217 Elim1Store]: Index analysis took 1259 ms