./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/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_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e63083161b3199c06a87ea66924e1f63d6865962e6a830baf344139b270d928 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:33:04,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:33:04,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:33:04,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:33:04,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:33:04,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:33:04,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:33:04,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:33:04,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:33:04,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:33:04,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:33:04,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:33:04,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:33:04,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:33:04,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:33:04,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:33:04,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:33:04,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:33:04,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:33:04,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:33:04,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:33:04,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:33:04,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:33:04,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:33:04,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:33:04,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:33:04,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:33:04,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:33:04,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:33:04,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:33:04,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:33:04,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:33:04,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:33:04,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:33:04,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:33:04,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:33:04,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:33:04,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:33:04,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:33:04,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:33:04,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:33:04,782 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:33:04,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:33:04,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:33:04,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:33:04,817 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:33:04,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:33:04,818 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:33:04,819 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:33:04,819 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:33:04,819 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:33:04,819 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:33:04,820 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:33:04,820 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:33:04,820 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:33:04,821 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:33:04,821 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:33:04,821 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:33:04,821 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:33:04,821 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:33:04,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:33:04,822 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:33:04,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:33:04,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:33:04,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:33:04,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:33:04,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:33:04,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:33:04,823 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:33:04,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:33:04,824 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:33:04,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:33:04,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:33:04,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:33:04,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:33:04,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:33:04,825 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:33:04,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:33:04,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:33:04,826 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:33:04,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:33:04,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:33:04,826 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:33:04,826 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_761e75ec-1450-4d52-9183-954aebdeca94/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e63083161b3199c06a87ea66924e1f63d6865962e6a830baf344139b270d928 [2022-11-19 07:33:05,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:33:05,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:33:05,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:33:05,178 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:33:05,179 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:33:05,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i [2022-11-19 07:33:05,263 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/data/bf790e148/a96f6bd1ec3a4f059e7edc42a7a32b08/FLAG8622f7576 [2022-11-19 07:33:05,802 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:33:05,803 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i [2022-11-19 07:33:05,835 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/data/bf790e148/a96f6bd1ec3a4f059e7edc42a7a32b08/FLAG8622f7576 [2022-11-19 07:33:06,073 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/data/bf790e148/a96f6bd1ec3a4f059e7edc42a7a32b08 [2022-11-19 07:33:06,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:33:06,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:33:06,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:33:06,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:33:06,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:33:06,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:06" (1/1) ... [2022-11-19 07:33:06,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514a3723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:06, skipping insertion in model container [2022-11-19 07:33:06,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:06" (1/1) ... [2022-11-19 07:33:06,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:33:06,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:33:06,661 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_761e75ec-1450-4d52-9183-954aebdeca94/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i[33021,33034] [2022-11-19 07:33:06,762 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_761e75ec-1450-4d52-9183-954aebdeca94/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i[45234,45247] [2022-11-19 07:33:06,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:33:06,778 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:33:06,811 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_761e75ec-1450-4d52-9183-954aebdeca94/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i[33021,33034] [2022-11-19 07:33:06,906 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_761e75ec-1450-4d52-9183-954aebdeca94/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i[45234,45247] [2022-11-19 07:33:06,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:33:06,943 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:33:06,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:06 WrapperNode [2022-11-19 07:33:06,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:33:06,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:33:06,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:33:06,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:33:06,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:06" (1/1) ... [2022-11-19 07:33:06,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:06" (1/1) ... [2022-11-19 07:33:07,050 INFO L138 Inliner]: procedures = 177, calls = 297, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 992 [2022-11-19 07:33:07,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:33:07,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:33:07,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:33:07,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:33:07,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:06" (1/1) ... [2022-11-19 07:33:07,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:06" (1/1) ... [2022-11-19 07:33:07,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:06" (1/1) ... [2022-11-19 07:33:07,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:06" (1/1) ... [2022-11-19 07:33:07,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:06" (1/1) ... [2022-11-19 07:33:07,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:06" (1/1) ... [2022-11-19 07:33:07,129 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:06" (1/1) ... [2022-11-19 07:33:07,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:06" (1/1) ... [2022-11-19 07:33:07,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:33:07,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:33:07,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:33:07,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:33:07,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:06" (1/1) ... [2022-11-19 07:33:07,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:33:07,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:33:07,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:33:07,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:33:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:33:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:33:07,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:33:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:33:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:33:07,260 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:33:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2022-11-19 07:33:07,261 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2022-11-19 07:33:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:33:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:33:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:33:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:33:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:33:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:33:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:33:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:33:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:33:07,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:33:07,537 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:33:07,553 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:33:09,051 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:33:09,463 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:33:09,464 INFO L300 CfgBuilder]: Removed 62 assume(true) statements. [2022-11-19 07:33:09,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:09 BoogieIcfgContainer [2022-11-19 07:33:09,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:33:09,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:33:09,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:33:09,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:33:09,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:33:06" (1/3) ... [2022-11-19 07:33:09,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730f8663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:09, skipping insertion in model container [2022-11-19 07:33:09,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:06" (2/3) ... [2022-11-19 07:33:09,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730f8663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:09, skipping insertion in model container [2022-11-19 07:33:09,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:09" (3/3) ... [2022-11-19 07:33:09,480 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test8-1.i [2022-11-19 07:33:09,503 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:33:09,503 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 07:33:09,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:33:09,586 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;@5ebd5c1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:33:09,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 07:33:09,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 139 states have internal predecessors, (219), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-19 07:33:09,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 07:33:09,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:33:09,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:33:09,600 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:33:09,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:33:09,608 INFO L85 PathProgramCache]: Analyzing trace with hash 888261009, now seen corresponding path program 1 times [2022-11-19 07:33:09,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:33:09,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195631188] [2022-11-19 07:33:09,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:33:09,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:33:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:33:09,842 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 07:33:09,843 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:33:09,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195631188] [2022-11-19 07:33:09,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195631188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:33:09,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:33:09,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:33:09,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984681332] [2022-11-19 07:33:09,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:33:09,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:33:09,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:33:09,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:33:09,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:33:09,887 INFO L87 Difference]: Start difference. First operand has 148 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 139 states have internal predecessors, (219), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:33:11,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:33:11,109 INFO L93 Difference]: Finished difference Result 295 states and 534 transitions. [2022-11-19 07:33:11,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:33:11,112 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-11-19 07:33:11,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:33:11,120 INFO L225 Difference]: With dead ends: 295 [2022-11-19 07:33:11,121 INFO L226 Difference]: Without dead ends: 146 [2022-11-19 07:33:11,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:33:11,128 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:33:11,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 178 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-19 07:33:11,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-19 07:33:11,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-11-19 07:33:11,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 137 states have internal predecessors, (154), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-19 07:33:11,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2022-11-19 07:33:11,181 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 8 [2022-11-19 07:33:11,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:33:11,182 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2022-11-19 07:33:11,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:33:11,182 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2022-11-19 07:33:11,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:33:11,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:33:11,184 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 07:33:11,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:33:11,185 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:33:11,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:33:11,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1250356048, now seen corresponding path program 1 times [2022-11-19 07:33:11,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:33:11,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54669529] [2022-11-19 07:33:11,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:33:11,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:33:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:33:11,581 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 07:33:11,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:33:11,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54669529] [2022-11-19 07:33:11,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54669529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:33:11,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:33:11,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:33:11,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797469909] [2022-11-19 07:33:11,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:33:11,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:33:11,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:33:11,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:33:11,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:33:11,585 INFO L87 Difference]: Start difference. First operand 146 states and 194 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 07:33:14,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:33:14,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:33:14,103 INFO L93 Difference]: Finished difference Result 293 states and 390 transitions. [2022-11-19 07:33:14,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:33:14,104 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 07:33:14,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:33:14,106 INFO L225 Difference]: With dead ends: 293 [2022-11-19 07:33:14,106 INFO L226 Difference]: Without dead ends: 202 [2022-11-19 07:33:14,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:33:14,108 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 60 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:33:14,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 480 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 07:33:14,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-11-19 07:33:14,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 148. [2022-11-19 07:33:14,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.2682926829268293) internal successors, (156), 139 states have internal predecessors, (156), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-19 07:33:14,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2022-11-19 07:33:14,126 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 20 [2022-11-19 07:33:14,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:33:14,126 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2022-11-19 07:33:14,127 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 07:33:14,127 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2022-11-19 07:33:14,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-19 07:33:14,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:33:14,128 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, 1, 1, 1, 1] [2022-11-19 07:33:14,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:33:14,129 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:33:14,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:33:14,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1118312460, now seen corresponding path program 1 times [2022-11-19 07:33:14,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:33:14,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130162741] [2022-11-19 07:33:14,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:33:14,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:33:14,314 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:33:14,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [80363831] [2022-11-19 07:33:14,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:33:14,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:33:14,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:33:14,323 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:33:14,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:33:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:33:15,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 1597 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:33:15,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:33:15,185 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 07:33:15,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:33:15,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:33:15,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130162741] [2022-11-19 07:33:15,186 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:33:15,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80363831] [2022-11-19 07:33:15,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80363831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:33:15,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:33:15,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:33:15,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807784423] [2022-11-19 07:33:15,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:33:15,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:33:15,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:33:15,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:33:15,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:33:15,189 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:33:16,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:33:16,832 INFO L93 Difference]: Finished difference Result 341 states and 444 transitions. [2022-11-19 07:33:16,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:33:16,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-19 07:33:16,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:33:16,835 INFO L225 Difference]: With dead ends: 341 [2022-11-19 07:33:16,835 INFO L226 Difference]: Without dead ends: 196 [2022-11-19 07:33:16,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:33:16,837 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 45 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:33:16,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 341 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-19 07:33:16,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-19 07:33:16,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2022-11-19 07:33:16,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 167 states have (on average 1.2275449101796407) internal successors, (205), 183 states have internal predecessors, (205), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2022-11-19 07:33:16,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2022-11-19 07:33:16,856 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 32 [2022-11-19 07:33:16,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:33:16,857 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2022-11-19 07:33:16,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:33:16,857 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2022-11-19 07:33:16,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-19 07:33:16,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:33:16,859 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, 1, 1, 1, 1] [2022-11-19 07:33:16,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 07:33:17,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:33:17,068 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:33:17,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:33:17,068 INFO L85 PathProgramCache]: Analyzing trace with hash -119168274, now seen corresponding path program 1 times [2022-11-19 07:33:17,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:33:17,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639251476] [2022-11-19 07:33:17,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:33:17,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:33:17,139 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:33:17,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [957836783] [2022-11-19 07:33:17,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:33:17,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:33:17,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:33:17,146 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:33:17,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:33:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:33:35,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:33:35,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:33:35,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:33:35,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:33:35,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:33:35,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639251476] [2022-11-19 07:33:35,385 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:33:35,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957836783] [2022-11-19 07:33:35,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957836783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:33:35,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:33:35,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:33:35,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931238141] [2022-11-19 07:33:35,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:33:35,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:33:35,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:33:35,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:33:35,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:33:35,388 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:33:37,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:33:37,071 INFO L93 Difference]: Finished difference Result 372 states and 482 transitions. [2022-11-19 07:33:37,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:33:37,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-11-19 07:33:37,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:33:37,079 INFO L225 Difference]: With dead ends: 372 [2022-11-19 07:33:37,079 INFO L226 Difference]: Without dead ends: 195 [2022-11-19 07:33:37,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:33:37,081 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:33:37,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 521 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-19 07:33:37,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-19 07:33:37,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2022-11-19 07:33:37,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 185 states have internal predecessors, (207), 21 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2022-11-19 07:33:37,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 250 transitions. [2022-11-19 07:33:37,097 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 250 transitions. Word has length 45 [2022-11-19 07:33:37,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:33:37,097 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 250 transitions. [2022-11-19 07:33:37,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:33:37,098 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 250 transitions. [2022-11-19 07:33:37,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-19 07:33:37,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:33:37,100 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, 1, 1, 1, 1] [2022-11-19 07:33:37,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:33:37,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:33:37,323 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:33:37,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:33:37,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1646850426, now seen corresponding path program 1 times [2022-11-19 07:33:37,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:33:37,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69956784] [2022-11-19 07:33:37,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:33:37,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:33:37,437 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:33:37,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1812296019] [2022-11-19 07:33:37,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:33:37,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:33:37,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:33:37,441 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:33:37,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761e75ec-1450-4d52-9183-954aebdeca94/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:33:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:33:40,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 07:33:40,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:33:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:33:40,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:33:41,100 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:33:41,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:33:41,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69956784] [2022-11-19 07:33:41,101 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:33:41,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812296019] [2022-11-19 07:33:41,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812296019] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:33:41,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1449517397] [2022-11-19 07:33:41,122 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-19 07:33:41,122 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:33:41,126 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:33:41,132 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:33:41,132 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:33:41,243 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 07:33:41,249 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 07:33:41,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:41,260 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 07:33:41,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:41,292 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:33:41,293 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 07:33:41,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:41,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 07:33:41,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:41,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:41,376 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 07:33:41,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-19 07:33:41,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:41,400 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 22 treesize of output 7 [2022-11-19 07:33:41,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:41,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:41,445 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:33:41,446 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 07:33:41,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:41,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:41,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:41,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:41,469 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 52 treesize of output 49 [2022-11-19 07:33:41,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:41,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:33:42,033 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 07:33:42,063 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 07:33:42,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,139 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 9897009 treesize of output 5376288 [2022-11-19 07:33:42,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,191 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 8458577 treesize of output 4759834 [2022-11-19 07:33:42,261 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 07:33:42,273 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 07:33:42,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,336 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 07:33:42,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,399 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 07:33:42,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,528 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 07:33:42,590 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 07:33:42,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,680 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 07:33:42,680 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 07:33:42,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,705 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 07:33:42,733 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 07:33:42,915 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 13 treesize of output 9 [2022-11-19 07:33:42,919 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 07:33:42,924 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 07:33:43,000 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:33:43,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-19 07:33:43,034 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-19 07:33:43,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-11-19 07:33:43,068 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:33:43,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-19 07:33:43,108 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 07:33:43,113 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 07:33:43,120 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 07:33:43,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,221 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 07:33:43,252 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 07:33:43,272 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 07:33:43,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:43,530 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 07:33:43,554 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 07:33:43,571 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 07:33:44,631 INFO L217 Elim1Store]: Index analysis took 710 ms [2022-11-19 07:33:51,691 WARN L233 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:33:51,692 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-19 07:33:51,693 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 9519796 [2022-11-19 07:33:53,217 INFO L217 Elim1Store]: Index analysis took 1043 ms [2022-11-19 07:33:54,012 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-19 07:33:54,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9519772 treesize of output 9519776 [2022-11-19 07:36:58,788 WARN L233 SmtUtils]: Spent 3.08m on a formula simplification. DAG size of input: 198 DAG size of output: 106 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:36:58,789 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-11-19 07:36:58,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 7904 treesize of output 5832 [2022-11-19 07:36:59,441 INFO L217 Elim1Store]: Index analysis took 237 ms [2022-11-19 07:38:53,585 WARN L233 SmtUtils]: Spent 1.90m 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 07:38:53,586 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-19 07:38:53,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 7180 treesize of output 5998 [2022-11-19 07:38:58,109 INFO L217 Elim1Store]: Index analysis took 2678 ms