./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur --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 d619c50f205026415119876db06c9bf079f51316bee7c051af8e3a06a37e393d --- 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-38b53e6 [2022-11-26 00:18:25,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:18:25,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:18:25,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:18:25,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:18:25,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:18:25,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:18:25,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:18:25,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:18:25,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:18:25,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:18:25,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:18:25,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:18:25,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:18:25,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:18:25,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:18:25,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:18:25,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:18:25,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:18:25,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:18:25,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:18:25,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:18:25,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:18:25,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:18:25,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:18:25,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:18:25,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:18:25,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:18:25,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:18:25,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:18:25,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:18:25,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:18:25,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:18:25,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:18:25,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:18:25,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:18:25,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:18:25,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:18:25,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:18:25,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:18:25,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:18:25,824 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:18:25,847 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:18:25,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:18:25,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:18:25,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:18:25,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:18:25,848 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:18:25,848 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:18:25,849 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:18:25,849 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:18:25,849 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:18:25,849 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:18:25,849 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:18:25,850 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:18:25,850 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:18:25,850 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:18:25,850 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:18:25,850 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:18:25,851 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:18:25,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:18:25,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:18:25,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:18:25,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:18:25,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:18:25,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:18:25,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:18:25,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:18:25,853 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:18:25,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:18:25,854 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:18:25,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:18:25,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:18:25,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:18:25,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:18:25,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:18:25,855 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:18:25,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:18:25,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:18:25,856 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:18:25,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:18:25,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:18:25,857 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:18:25,857 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_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d619c50f205026415119876db06c9bf079f51316bee7c051af8e3a06a37e393d [2022-11-26 00:18:26,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:18:26,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:18:26,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:18:26,218 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:18:26,219 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:18:26,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i [2022-11-26 00:18:29,384 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:18:29,806 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:18:29,808 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i [2022-11-26 00:18:29,828 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/data/cea1103da/27ade7c75feb47e5b87b4ad2bfd87218/FLAG98be9bc56 [2022-11-26 00:18:29,849 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/data/cea1103da/27ade7c75feb47e5b87b4ad2bfd87218 [2022-11-26 00:18:29,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:18:29,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:18:29,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:18:29,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:18:29,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:18:29,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:18:29" (1/1) ... [2022-11-26 00:18:29,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3492ec4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:29, skipping insertion in model container [2022-11-26 00:18:29,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:18:29" (1/1) ... [2022-11-26 00:18:29,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:18:29,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:18:30,543 WARN L237 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_9e2c8e73-c707-4138-8871-9ccad6b1f08b/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i[37019,37032] [2022-11-26 00:18:30,721 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:18:30,737 WARN L237 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_9e2c8e73-c707-4138-8871-9ccad6b1f08b/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i[47352,47365] [2022-11-26 00:18:30,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:18:30,782 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:18:30,837 WARN L237 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_9e2c8e73-c707-4138-8871-9ccad6b1f08b/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i[37019,37032] [2022-11-26 00:18:30,920 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:18:30,922 WARN L237 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_9e2c8e73-c707-4138-8871-9ccad6b1f08b/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i[47352,47365] [2022-11-26 00:18:30,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:18:30,993 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:18:30,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:30 WrapperNode [2022-11-26 00:18:30,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:18:30,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:18:30,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:18:30,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:18:31,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:30" (1/1) ... [2022-11-26 00:18:31,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:30" (1/1) ... [2022-11-26 00:18:31,095 INFO L138 Inliner]: procedures = 208, calls = 286, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1035 [2022-11-26 00:18:31,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:18:31,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:18:31,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:18:31,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:18:31,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:30" (1/1) ... [2022-11-26 00:18:31,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:30" (1/1) ... [2022-11-26 00:18:31,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:30" (1/1) ... [2022-11-26 00:18:31,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:30" (1/1) ... [2022-11-26 00:18:31,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:30" (1/1) ... [2022-11-26 00:18:31,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:30" (1/1) ... [2022-11-26 00:18:31,245 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:30" (1/1) ... [2022-11-26 00:18:31,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:30" (1/1) ... [2022-11-26 00:18:31,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:18:31,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:18:31,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:18:31,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:18:31,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:30" (1/1) ... [2022-11-26 00:18:31,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:18:31,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:31,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:18:31,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:18:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:18:31,358 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:18:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:18:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-26 00:18:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:18:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:18:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:18:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:18:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:18:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:18:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:18:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:18:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:18:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:18:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:18:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:18:31,653 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:18:31,655 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:18:33,164 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:18:33,643 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:18:33,643 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-11-26 00:18:33,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:18:33 BoogieIcfgContainer [2022-11-26 00:18:33,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:18:33,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:18:33,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:18:33,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:18:33,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:18:29" (1/3) ... [2022-11-26 00:18:33,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc76de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:18:33, skipping insertion in model container [2022-11-26 00:18:33,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:30" (2/3) ... [2022-11-26 00:18:33,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc76de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:18:33, skipping insertion in model container [2022-11-26 00:18:33,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:18:33" (3/3) ... [2022-11-26 00:18:33,655 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test2-2.i [2022-11-26 00:18:33,676 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:18:33,676 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:18:33,741 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:18:33,749 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;@72ec9abe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:18:33,749 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:18:33,761 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-26 00:18:33,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:18:33,771 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:33,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:33,772 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:18:33,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:33,778 INFO L85 PathProgramCache]: Analyzing trace with hash 527974349, now seen corresponding path program 1 times [2022-11-26 00:18:33,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:33,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417769140] [2022-11-26 00:18:33,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:33,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:33,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:33,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:33,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417769140] [2022-11-26 00:18:33,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417769140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:33,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:33,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:18:33,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454440916] [2022-11-26 00:18:33,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:33,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:18:33,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:34,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:18:34,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:18:34,034 INFO L87 Difference]: Start difference. First operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 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) [2022-11-26 00:18:35,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:18:35,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:35,932 INFO L93 Difference]: Finished difference Result 245 states and 432 transitions. [2022-11-26 00:18:35,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:18:35,942 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 [2022-11-26 00:18:35,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:35,950 INFO L225 Difference]: With dead ends: 245 [2022-11-26 00:18:35,950 INFO L226 Difference]: Without dead ends: 107 [2022-11-26 00:18:35,954 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 [2022-11-26 00:18:35,959 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:35,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-26 00:18:35,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-26 00:18:36,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-11-26 00:18:36,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 95 states have (on average 1.2210526315789474) internal successors, (116), 101 states have internal predecessors, (116), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-26 00:18:36,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 132 transitions. [2022-11-26 00:18:36,024 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 132 transitions. Word has length 8 [2022-11-26 00:18:36,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:36,024 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 132 transitions. [2022-11-26 00:18:36,025 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) [2022-11-26 00:18:36,025 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 132 transitions. [2022-11-26 00:18:36,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-26 00:18:36,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:36,027 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] [2022-11-26 00:18:36,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:18:36,028 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:18:36,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:36,029 INFO L85 PathProgramCache]: Analyzing trace with hash -949222695, now seen corresponding path program 1 times [2022-11-26 00:18:36,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:36,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374908968] [2022-11-26 00:18:36,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:36,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:36,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:36,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:36,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374908968] [2022-11-26 00:18:36,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374908968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:36,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:36,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:18:36,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551001061] [2022-11-26 00:18:36,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:36,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:18:36,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:36,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:18:36,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:18:36,628 INFO L87 Difference]: Start difference. First operand 107 states and 132 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) [2022-11-26 00:18:37,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:37,824 INFO L93 Difference]: Finished difference Result 222 states and 282 transitions. [2022-11-26 00:18:37,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:18:37,829 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 [2022-11-26 00:18:37,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:37,831 INFO L225 Difference]: With dead ends: 222 [2022-11-26 00:18:37,831 INFO L226 Difference]: Without dead ends: 168 [2022-11-26 00:18:37,832 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 [2022-11-26 00:18:37,833 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 66 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:37,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 316 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:18:37,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-26 00:18:37,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 109. [2022-11-26 00:18:37,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 97 states have (on average 1.2164948453608246) internal successors, (118), 103 states have internal predecessors, (118), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-26 00:18:37,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2022-11-26 00:18:37,857 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 20 [2022-11-26 00:18:37,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:37,857 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2022-11-26 00:18:37,858 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) [2022-11-26 00:18:37,858 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2022-11-26 00:18:37,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-26 00:18:37,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:37,860 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:37,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:18:37,861 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:18:37,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:37,861 INFO L85 PathProgramCache]: Analyzing trace with hash 121394151, now seen corresponding path program 1 times [2022-11-26 00:18:37,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:37,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106076391] [2022-11-26 00:18:37,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:37,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:38,068 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:38,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [726667561] [2022-11-26 00:18:38,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:38,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:38,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:38,075 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:38,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:18:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:38,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 1659 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:18:38,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:39,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:39,071 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:39,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:39,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106076391] [2022-11-26 00:18:39,072 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:18:39,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726667561] [2022-11-26 00:18:39,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726667561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:39,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:39,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:18:39,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137299727] [2022-11-26 00:18:39,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:39,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:18:39,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:39,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:18:39,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:18:39,076 INFO L87 Difference]: Start difference. First operand 109 states and 134 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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) [2022-11-26 00:18:40,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:40,176 INFO L93 Difference]: Finished difference Result 260 states and 324 transitions. [2022-11-26 00:18:40,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:18:40,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 44 [2022-11-26 00:18:40,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:40,183 INFO L225 Difference]: With dead ends: 260 [2022-11-26 00:18:40,184 INFO L226 Difference]: Without dead ends: 154 [2022-11-26 00:18:40,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:18:40,186 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 43 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:40,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 238 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:18:40,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-11-26 00:18:40,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2022-11-26 00:18:40,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 135 states have (on average 1.2148148148148148) internal successors, (164), 146 states have internal predecessors, (164), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-26 00:18:40,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 190 transitions. [2022-11-26 00:18:40,210 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 190 transitions. Word has length 44 [2022-11-26 00:18:40,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:40,211 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 190 transitions. [2022-11-26 00:18:40,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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) [2022-11-26 00:18:40,211 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 190 transitions. [2022-11-26 00:18:40,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-26 00:18:40,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:40,214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:40,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:40,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:40,425 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:18:40,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:40,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1666471257, now seen corresponding path program 1 times [2022-11-26 00:18:40,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:40,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332242104] [2022-11-26 00:18:40,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:40,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:40,500 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:40,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [323770148] [2022-11-26 00:18:40,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:40,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:40,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:40,502 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:40,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:18:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:41,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:18:41,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:41,303 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:18:41,303 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:41,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:41,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332242104] [2022-11-26 00:18:41,304 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:18:41,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323770148] [2022-11-26 00:18:41,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323770148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:41,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:41,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:18:41,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361071308] [2022-11-26 00:18:41,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:41,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:18:41,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:41,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:18:41,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:18:41,308 INFO L87 Difference]: Start difference. First operand 152 states and 190 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:18:41,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:41,932 INFO L93 Difference]: Finished difference Result 258 states and 321 transitions. [2022-11-26 00:18:41,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:18:41,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-11-26 00:18:41,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:41,935 INFO L225 Difference]: With dead ends: 258 [2022-11-26 00:18:41,935 INFO L226 Difference]: Without dead ends: 122 [2022-11-26 00:18:41,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:41,938 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 163 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:41,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 153 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-26 00:18:41,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-26 00:18:41,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-11-26 00:18:41,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.1818181818181819) internal successors, (130), 116 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-26 00:18:41,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 146 transitions. [2022-11-26 00:18:41,957 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 146 transitions. Word has length 57 [2022-11-26 00:18:41,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:41,958 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 146 transitions. [2022-11-26 00:18:41,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:18:41,959 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 146 transitions. [2022-11-26 00:18:41,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-26 00:18:41,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:41,961 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:41,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:42,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:42,172 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:18:42,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:42,173 INFO L85 PathProgramCache]: Analyzing trace with hash 669433128, now seen corresponding path program 1 times [2022-11-26 00:18:42,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:42,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430161777] [2022-11-26 00:18:42,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:42,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:42,272 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:42,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1486536119] [2022-11-26 00:18:42,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:42,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:42,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:42,275 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:42,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:19:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:26,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:19:26,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:26,741 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:26,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:19:26,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:26,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430161777] [2022-11-26 00:19:26,743 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:19:26,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486536119] [2022-11-26 00:19:26,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486536119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:26,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:26,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:19:26,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086546305] [2022-11-26 00:19:26,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:26,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:19:26,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:26,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:19:26,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:19:26,746 INFO L87 Difference]: Start difference. First operand 122 states and 146 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:19:28,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:28,552 INFO L93 Difference]: Finished difference Result 227 states and 276 transitions. [2022-11-26 00:19:28,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:19:28,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2022-11-26 00:19:28,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:28,560 INFO L225 Difference]: With dead ends: 227 [2022-11-26 00:19:28,560 INFO L226 Difference]: Without dead ends: 124 [2022-11-26 00:19:28,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:19:28,563 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 1 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:28,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 347 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-26 00:19:28,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-26 00:19:28,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-11-26 00:19:28,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 111 states have (on average 1.1891891891891893) internal successors, (132), 118 states have internal predecessors, (132), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-11-26 00:19:28,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 149 transitions. [2022-11-26 00:19:28,581 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 149 transitions. Word has length 64 [2022-11-26 00:19:28,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:28,582 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 149 transitions. [2022-11-26 00:19:28,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:19:28,582 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 149 transitions. [2022-11-26 00:19:28,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-26 00:19:28,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:28,585 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:28,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:28,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:28,807 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:19:28,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:28,808 INFO L85 PathProgramCache]: Analyzing trace with hash -2127571752, now seen corresponding path program 1 times [2022-11-26 00:19:28,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:28,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352638218] [2022-11-26 00:19:28,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:28,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:28,917 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:19:28,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1274205326] [2022-11-26 00:19:28,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:28,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:28,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:28,924 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:28,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2c8e73-c707-4138-8871-9ccad6b1f08b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:19:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:50,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-26 00:19:50,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:50,630 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:19:50,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:19:50,803 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:19:50,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:50,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352638218] [2022-11-26 00:19:50,804 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:19:50,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274205326] [2022-11-26 00:19:50,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274205326] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:19:50,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [57263011] [2022-11-26 00:19:50,837 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-26 00:19:50,838 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:19:50,843 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:19:50,849 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:19:50,850 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:19:51,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,025 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 [2022-11-26 00:19:51,036 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 [2022-11-26 00:19:51,044 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 [2022-11-26 00:19:51,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,072 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-26 00:19:51,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-26 00:19:51,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,116 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:19:51,117 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 [2022-11-26 00:19:51,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,183 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 [2022-11-26 00:19:51,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,240 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:19:51,241 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 [2022-11-26 00:19:51,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-26 00:19:51,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,286 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 [2022-11-26 00:19:51,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,306 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 [2022-11-26 00:19:51,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,820 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 [2022-11-26 00:19:51,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,881 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 [2022-11-26 00:19:51,967 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 [2022-11-26 00:19:51,989 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 [2022-11-26 00:19:52,029 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 [2022-11-26 00:19:52,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,111 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 [2022-11-26 00:19:52,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,179 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 [2022-11-26 00:19:52,213 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 [2022-11-26 00:19:52,257 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 [2022-11-26 00:19:52,283 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 [2022-11-26 00:19:52,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,373 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-26 00:19:52,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-26 00:19:52,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,473 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:19:52,474 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 [2022-11-26 00:19:52,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,544 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 [2022-11-26 00:19:52,776 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 [2022-11-26 00:19:52,781 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 [2022-11-26 00:19:52,786 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 [2022-11-26 00:19:52,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-26 00:19:52,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-26 00:19:52,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-26 00:19:52,861 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 [2022-11-26 00:19:52,867 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 [2022-11-26 00:19:52,873 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 [2022-11-26 00:19:52,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:52,975 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 [2022-11-26 00:19:53,007 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 [2022-11-26 00:19:53,030 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 [2022-11-26 00:19:53,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:53,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:53,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:53,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:53,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:53,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:53,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:53,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:53,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:53,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:53,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:53,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:53,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:53,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:53,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:53,325 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 [2022-11-26 00:19:53,351 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 [2022-11-26 00:19:53,376 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 [2022-11-26 00:19:56,546 INFO L217 Elim1Store]: Index analysis took 2706 ms [2022-11-26 00:20:01,112 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-26 00:20:01,113 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 [2022-11-26 00:20:02,539 INFO L217 Elim1Store]: Index analysis took 1217 ms [2022-11-26 00:20:05,992 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-26 00:20:05,993 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