./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1447114af8a4b489e3ec713f117f7a92d9cc93e5175903910b61bfe512c41aed --- 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-e04fb08 [2022-11-16 19:44:04,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:44:04,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:44:05,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:44:05,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:44:05,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:44:05,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:44:05,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:44:05,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:44:05,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:44:05,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:44:05,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:44:05,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:44:05,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:44:05,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:44:05,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:44:05,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:44:05,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:44:05,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:44:05,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:44:05,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:44:05,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:44:05,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:44:05,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:44:05,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:44:05,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:44:05,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:44:05,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:44:05,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:44:05,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:44:05,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:44:05,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:44:05,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:44:05,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:44:05,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:44:05,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:44:05,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:44:05,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:44:05,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:44:05,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:44:05,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:44:05,135 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-16 19:44:05,185 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:44:05,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:44:05,189 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:44:05,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:44:05,190 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:44:05,190 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:44:05,191 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:44:05,191 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:44:05,191 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:44:05,192 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:44:05,193 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:44:05,193 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:44:05,194 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:44:05,194 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:44:05,194 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:44:05,194 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:44:05,195 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:44:05,195 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:44:05,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:44:05,196 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 19:44:05,197 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 19:44:05,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:44:05,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 19:44:05,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:44:05,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:44:05,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:44:05,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:44:05,198 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 19:44:05,200 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 19:44:05,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:44:05,201 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:44:05,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:44:05,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:44:05,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:44:05,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:44:05,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:44:05,203 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:44:05,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:44:05,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:44:05,204 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:44:05,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:44:05,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:44:05,205 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:44:05,205 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_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1447114af8a4b489e3ec713f117f7a92d9cc93e5175903910b61bfe512c41aed [2022-11-16 19:44:05,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:44:05,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:44:05,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:44:05,697 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:44:05,699 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:44:05,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i [2022-11-16 19:44:05,785 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/data/8ea5d19fc/fbdc958930434c659557ec2603a871ab/FLAGf28667d29 [2022-11-16 19:44:06,602 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:44:06,603 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i [2022-11-16 19:44:06,650 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/data/8ea5d19fc/fbdc958930434c659557ec2603a871ab/FLAGf28667d29 [2022-11-16 19:44:06,789 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/data/8ea5d19fc/fbdc958930434c659557ec2603a871ab [2022-11-16 19:44:06,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:44:06,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:44:06,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:44:06,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:44:06,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:44:06,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:44:06" (1/1) ... [2022-11-16 19:44:06,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a944739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:06, skipping insertion in model container [2022-11-16 19:44:06,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:44:06" (1/1) ... [2022-11-16 19:44:06,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:44:06,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:44:07,462 WARN L229 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_ee76091d-19c3-4148-8fb2-598fa04040c8/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i[33021,33034] [2022-11-16 19:44:07,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:44:07,648 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:44:07,702 WARN L229 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_ee76091d-19c3-4148-8fb2-598fa04040c8/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i[33021,33034] [2022-11-16 19:44:07,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:44:07,831 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:44:07,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:07 WrapperNode [2022-11-16 19:44:07,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:44:07,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:44:07,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:44:07,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:44:07,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:07" (1/1) ... [2022-11-16 19:44:07,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:07" (1/1) ... [2022-11-16 19:44:07,974 INFO L138 Inliner]: procedures = 177, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 778 [2022-11-16 19:44:07,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:44:07,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:44:07,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:44:07,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:44:07,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:07" (1/1) ... [2022-11-16 19:44:07,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:07" (1/1) ... [2022-11-16 19:44:08,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:07" (1/1) ... [2022-11-16 19:44:08,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:07" (1/1) ... [2022-11-16 19:44:08,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:07" (1/1) ... [2022-11-16 19:44:08,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:07" (1/1) ... [2022-11-16 19:44:08,060 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:07" (1/1) ... [2022-11-16 19:44:08,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:07" (1/1) ... [2022-11-16 19:44:08,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:44:08,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:44:08,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:44:08,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:44:08,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:07" (1/1) ... [2022-11-16 19:44:08,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:44:08,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:44:08,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:44:08,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:44:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 19:44:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 19:44:08,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 19:44:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 19:44:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 19:44:08,193 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 19:44:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 19:44:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:44:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 19:44:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 19:44:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 19:44:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 19:44:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:44:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:44:08,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:44:08,542 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:44:08,551 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:44:10,219 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:44:10,655 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:44:10,655 INFO L300 CfgBuilder]: Removed 40 assume(true) statements. [2022-11-16 19:44:10,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:44:10 BoogieIcfgContainer [2022-11-16 19:44:10,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:44:10,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:44:10,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:44:10,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:44:10,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:44:06" (1/3) ... [2022-11-16 19:44:10,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f41c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:44:10, skipping insertion in model container [2022-11-16 19:44:10,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:07" (2/3) ... [2022-11-16 19:44:10,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f41c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:44:10, skipping insertion in model container [2022-11-16 19:44:10,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:44:10" (3/3) ... [2022-11-16 19:44:10,671 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test1-2.i [2022-11-16 19:44:10,694 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:44:10,695 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 19:44:10,760 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:44:10,768 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;@73bc796, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:44:10,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-16 19:44:10,774 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 81 states have (on average 1.8024691358024691) internal successors, (146), 97 states have internal predecessors, (146), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-16 19:44:10,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 19:44:10,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:44:10,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 19:44:10,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 19:44:10,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:44:10,790 INFO L85 PathProgramCache]: Analyzing trace with hash 656327, now seen corresponding path program 1 times [2022-11-16 19:44:10,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:44:10,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774319372] [2022-11-16 19:44:10,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:44:10,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:44:10,969 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:44:10,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [880258377] [2022-11-16 19:44:10,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:44:10,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:44:10,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:44:10,979 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:44:10,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 19:44:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:44:11,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 19:44:11,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:44:11,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:44:11,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:44:11,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:44:11,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774319372] [2022-11-16 19:44:11,250 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:44:11,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880258377] [2022-11-16 19:44:11,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880258377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:44:11,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:44:11,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 19:44:11,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353105962] [2022-11-16 19:44:11,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:44:11,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:44:11,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:44:11,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:44:11,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:44:11,300 INFO L87 Difference]: Start difference. First operand has 103 states, 81 states have (on average 1.8024691358024691) internal successors, (146), 97 states have internal predecessors, (146), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-16 19:44:13,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 19:44:16,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 19:44:16,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:44:16,302 INFO L93 Difference]: Finished difference Result 258 states and 438 transitions. [2022-11-16 19:44:16,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:44:16,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-16 19:44:16,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:44:16,328 INFO L225 Difference]: With dead ends: 258 [2022-11-16 19:44:16,328 INFO L226 Difference]: Without dead ends: 141 [2022-11-16 19:44:16,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:44:16,335 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 54 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-16 19:44:16,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 234 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-16 19:44:16,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-16 19:44:16,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 89. [2022-11-16 19:44:16,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 69 states have (on average 1.318840579710145) internal successors, (91), 83 states have internal predecessors, (91), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-16 19:44:16,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 117 transitions. [2022-11-16 19:44:16,400 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 117 transitions. Word has length 3 [2022-11-16 19:44:16,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:44:16,401 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 117 transitions. [2022-11-16 19:44:16,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-16 19:44:16,402 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions. [2022-11-16 19:44:16,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-16 19:44:16,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:44:16,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:44:16,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 19:44:16,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-16 19:44:16,617 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 19:44:16,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:44:16,618 INFO L85 PathProgramCache]: Analyzing trace with hash 2085923058, now seen corresponding path program 1 times [2022-11-16 19:44:16,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:44:16,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428920360] [2022-11-16 19:44:16,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:44:16,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:44:16,906 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:44:16,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [523931975] [2022-11-16 19:44:16,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:44:16,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:44:16,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:44:16,909 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:44:16,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 19:44:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:44:17,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 1548 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 19:44:17,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:44:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:44:18,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:44:18,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:44:18,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428920360] [2022-11-16 19:44:18,011 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:44:18,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523931975] [2022-11-16 19:44:18,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523931975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:44:18,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:44:18,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:44:18,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585633808] [2022-11-16 19:44:18,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:44:18,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:44:18,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:44:18,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:44:18,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:44:18,015 INFO L87 Difference]: Start difference. First operand 89 states and 117 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2022-11-16 19:44:20,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 19:44:20,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:44:20,795 INFO L93 Difference]: Finished difference Result 141 states and 177 transitions. [2022-11-16 19:44:20,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:44:20,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2022-11-16 19:44:20,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:44:20,804 INFO L225 Difference]: With dead ends: 141 [2022-11-16 19:44:20,804 INFO L226 Difference]: Without dead ends: 140 [2022-11-16 19:44:20,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:44:20,806 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 31 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-16 19:44:20,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 318 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-11-16 19:44:20,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-16 19:44:20,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 135. [2022-11-16 19:44:20,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 112 states have (on average 1.2410714285714286) internal successors, (139), 126 states have internal predecessors, (139), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 19:44:20,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 171 transitions. [2022-11-16 19:44:20,838 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 171 transitions. Word has length 27 [2022-11-16 19:44:20,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:44:20,839 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 171 transitions. [2022-11-16 19:44:20,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2022-11-16 19:44:20,840 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 171 transitions. [2022-11-16 19:44:20,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 19:44:20,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:44:20,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:44:20,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 19:44:21,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:44:21,055 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 19:44:21,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:44:21,055 INFO L85 PathProgramCache]: Analyzing trace with hash 239105766, now seen corresponding path program 1 times [2022-11-16 19:44:21,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:44:21,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356231707] [2022-11-16 19:44:21,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:44:21,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:44:21,236 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:44:21,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1845427837] [2022-11-16 19:44:21,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:44:21,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:44:21,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:44:21,238 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:44:21,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 19:44:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:44:22,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 1549 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 19:44:22,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:44:22,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:44:22,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:44:22,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:44:22,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356231707] [2022-11-16 19:44:22,319 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:44:22,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845427837] [2022-11-16 19:44:22,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845427837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:44:22,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:44:22,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:44:22,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127734148] [2022-11-16 19:44:22,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:44:22,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:44:22,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:44:22,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:44:22,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:44:22,322 INFO L87 Difference]: Start difference. First operand 135 states and 171 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:44:24,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:44:24,199 INFO L93 Difference]: Finished difference Result 135 states and 171 transitions. [2022-11-16 19:44:24,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:44:24,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-16 19:44:24,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:44:24,208 INFO L225 Difference]: With dead ends: 135 [2022-11-16 19:44:24,208 INFO L226 Difference]: Without dead ends: 134 [2022-11-16 19:44:24,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:44:24,210 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 59 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-16 19:44:24,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 207 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-16 19:44:24,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-16 19:44:24,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-11-16 19:44:24,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 112 states have (on average 1.2321428571428572) internal successors, (138), 125 states have internal predecessors, (138), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 19:44:24,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 170 transitions. [2022-11-16 19:44:24,241 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 170 transitions. Word has length 28 [2022-11-16 19:44:24,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:44:24,241 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 170 transitions. [2022-11-16 19:44:24,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:44:24,242 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 170 transitions. [2022-11-16 19:44:24,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-16 19:44:24,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:44:24,243 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] [2022-11-16 19:44:24,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 19:44:24,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:44:24,455 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 19:44:24,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:44:24,456 INFO L85 PathProgramCache]: Analyzing trace with hash 2147395544, now seen corresponding path program 1 times [2022-11-16 19:44:24,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:44:24,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909770951] [2022-11-16 19:44:24,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:44:24,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:44:24,676 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:44:24,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1563613236] [2022-11-16 19:44:24,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:44:24,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:44:24,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:44:24,679 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:44:24,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 19:44:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:44:25,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 19:44:25,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:44:25,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:44:25,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:44:25,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:44:25,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909770951] [2022-11-16 19:44:25,871 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:44:25,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563613236] [2022-11-16 19:44:25,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563613236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:44:25,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:44:25,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:44:25,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219729101] [2022-11-16 19:44:25,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:44:25,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:44:25,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:44:25,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:44:25,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:44:25,874 INFO L87 Difference]: Start difference. First operand 134 states and 170 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2022-11-16 19:44:28,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 19:44:28,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:44:28,385 INFO L93 Difference]: Finished difference Result 240 states and 308 transitions. [2022-11-16 19:44:28,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:44:28,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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 30 [2022-11-16 19:44:28,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:44:28,395 INFO L225 Difference]: With dead ends: 240 [2022-11-16 19:44:28,395 INFO L226 Difference]: Without dead ends: 132 [2022-11-16 19:44:28,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:44:28,397 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 11 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-16 19:44:28,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 191 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-11-16 19:44:28,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-16 19:44:28,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2022-11-16 19:44:28,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 110 states have (on average 1.2272727272727273) internal successors, (135), 123 states have internal predecessors, (135), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 19:44:28,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 167 transitions. [2022-11-16 19:44:28,419 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 167 transitions. Word has length 30 [2022-11-16 19:44:28,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:44:28,419 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 167 transitions. [2022-11-16 19:44:28,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2022-11-16 19:44:28,420 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 167 transitions. [2022-11-16 19:44:28,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-16 19:44:28,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:44:28,422 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:44:28,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 19:44:28,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:44:28,635 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 19:44:28,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:44:28,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1323555771, now seen corresponding path program 1 times [2022-11-16 19:44:28,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:44:28,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415824311] [2022-11-16 19:44:28,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:44:28,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:44:28,746 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:44:28,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [969102834] [2022-11-16 19:44:28,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:44:28,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:44:28,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:44:28,749 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:44:28,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 19:44:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:44:59,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 19:44:59,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:44:59,522 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:44:59,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:44:59,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:44:59,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415824311] [2022-11-16 19:44:59,523 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:44:59,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969102834] [2022-11-16 19:44:59,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969102834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:44:59,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:44:59,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:44:59,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125662517] [2022-11-16 19:44:59,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:44:59,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:44:59,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:44:59,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:44:59,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:44:59,526 INFO L87 Difference]: Start difference. First operand 132 states and 167 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (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) [2022-11-16 19:45:02,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 19:45:02,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:45:02,351 INFO L93 Difference]: Finished difference Result 246 states and 320 transitions. [2022-11-16 19:45:02,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:45:02,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (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 43 [2022-11-16 19:45:02,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:45:02,367 INFO L225 Difference]: With dead ends: 246 [2022-11-16 19:45:02,367 INFO L226 Difference]: Without dead ends: 134 [2022-11-16 19:45:02,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:45:02,369 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 1 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-16 19:45:02,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 299 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-16 19:45:02,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-16 19:45:02,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-11-16 19:45:02,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 111 states have (on average 1.2342342342342343) internal successors, (137), 125 states have internal predecessors, (137), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-16 19:45:02,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 171 transitions. [2022-11-16 19:45:02,409 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 171 transitions. Word has length 43 [2022-11-16 19:45:02,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:45:02,410 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 171 transitions. [2022-11-16 19:45:02,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (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) [2022-11-16 19:45:02,410 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 171 transitions. [2022-11-16 19:45:02,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-16 19:45:02,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:45:02,414 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] [2022-11-16 19:45:02,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 19:45:02,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:45:02,634 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 19:45:02,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:45:02,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1800001479, now seen corresponding path program 1 times [2022-11-16 19:45:02,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:45:02,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516662751] [2022-11-16 19:45:02,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:45:02,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:45:02,768 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:45:02,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [890644460] [2022-11-16 19:45:02,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:45:02,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:45:02,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:45:02,775 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:45:02,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee76091d-19c3-4148-8fb2-598fa04040c8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 19:45:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:45:54,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 19:45:54,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:45:54,885 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 19:45:54,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:45:55,035 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 19:45:55,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:45:55,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516662751] [2022-11-16 19:45:55,036 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:45:55,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890644460] [2022-11-16 19:45:55,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890644460] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:45:55,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [706363162] [2022-11-16 19:45:55,065 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-11-16 19:45:55,076 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:45:55,083 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:45:55,094 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:45:55,094 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:45:55,270 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 [2022-11-16 19:45:55,325 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 19:45:55,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-16 19:45:55,349 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 [2022-11-16 19:45:55,384 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 19:45:55,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2022-11-16 19:45:55,448 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 19:45:55,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-16 19:45:55,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:45:55,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:45:55,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:55,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-16 19:45:56,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-16 19:45:56,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-16 19:45:56,294 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 [2022-11-16 19:45:56,320 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 [2022-11-16 19:45:56,369 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 [2022-11-16 19:45:56,394 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 [2022-11-16 19:45:56,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376293 [2022-11-16 19:45:56,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-16 19:45:56,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:56,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-16 19:45:56,744 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 [2022-11-16 19:45:56,788 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 [2022-11-16 19:45:56,890 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-16 19:45:56,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 19:45:56,917 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 28 treesize of output 36 [2022-11-16 19:45:57,178 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 [2022-11-16 19:45:57,185 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 [2022-11-16 19:45:57,192 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 [2022-11-16 19:45:57,228 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 [2022-11-16 19:45:57,239 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 [2022-11-16 19:45:57,249 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 [2022-11-16 19:45:57,276 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 [2022-11-16 19:45:57,283 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 [2022-11-16 19:45:57,291 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 [2022-11-16 19:45:57,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-16 19:45:57,428 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 46 treesize of output 16 [2022-11-16 19:45:57,446 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 [2022-11-16 19:45:57,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:45:57,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-16 19:45:57,738 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 46 treesize of output 16 [2022-11-16 19:45:57,756 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 [2022-11-16 19:45:59,552 INFO L217 Elim1Store]: Index analysis took 1334 ms [2022-11-16 19:46:05,235 WARN L233 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 78 DAG size of output: 27 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 19:46:05,236 INFO L321 Elim1Store]: treesize reduction 128, result has 22.4 percent of original size [2022-11-16 19:46:05,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 10752687 treesize of output 10752705 [2022-11-16 19:46:06,556 INFO L217 Elim1Store]: Index analysis took 1009 ms [2022-11-16 19:46:06,582 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-16 19:46:06,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 10752682 treesize of output 10752685 [2022-11-16 19:46:18,347 WARN L233 SmtUtils]: Spent 11.59s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 19:46:18,348 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-16 19:46:18,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-11-16 19:46:18,831 INFO L217 Elim1Store]: Index analysis took 240 ms [2022-11-16 19:46:49,114 WARN L233 SmtUtils]: Spent 30.28s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 19:46:49,115 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-16 19:46:49,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1819 [2022-11-16 19:46:51,937 INFO L217 Elim1Store]: Index analysis took 1715 ms [2022-11-16 19:47:36,321 WARN L233 SmtUtils]: Spent 43.39s on a formula simplification. DAG size of input: 261 DAG size of output: 159 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 19:47:36,323 INFO L321 Elim1Store]: treesize reduction 22290, result has 25.6 percent of original size [2022-11-16 19:47:36,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 5638 treesize of output 15985 [2022-11-16 19:47:38,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:47:38,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 69 [2022-11-16 19:47:38,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:47:38,385 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:47:38,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 55 [2022-11-16 19:47:38,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:47:38,534 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:47:38,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:47:38,662 INFO L217 Elim1Store]: Index analysis took 129 ms [2022-11-16 19:47:38,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 212 [2022-11-16 19:47:38,792 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:47:38,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:47:38,981 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:47:38,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-16 19:47:40,054 INFO L217 Elim1Store]: Index analysis took 646 ms [2022-11-16 19:47:41,538 INFO L321 Elim1Store]: treesize reduction 36, result has 33.3 percent of original size [2022-11-16 19:47:41,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 113 [2022-11-16 19:47:41,750 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 19:47:41,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2022-11-16 19:47:42,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:47:42,336 INFO L217 Elim1Store]: Index analysis took 185 ms [2022-11-16 19:47:42,356 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 19:47:42,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 30 [2022-11-16 19:47:44,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:47:44,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-16 19:47:46,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:47:46,470 INFO L217 Elim1Store]: Index analysis took 135 ms [2022-11-16 19:47:46,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-16 19:48:34,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:48:34,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-11-16 19:49:13,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:49:13,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-11-16 19:50:07,819 WARN L233 SmtUtils]: Spent 6.83s on a formula simplification that was a NOOP. DAG size: 27013 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 19:52:10,393 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:52:10,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 49 [2022-11-16 19:52:11,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:52:11,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:52:11,143 INFO L217 Elim1Store]: Index analysis took 120 ms [2022-11-16 19:52:11,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 54 [2022-11-16 19:53:07,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:53:07,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:53:07,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 194 [2022-11-16 19:53:07,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:53:07,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 541 treesize of output 187 [2022-11-16 19:53:08,012 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:53:11,521 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-16 19:53:11,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 649 treesize of output 574 [2022-11-16 19:53:11,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2022-11-16 19:53:13,553 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-16 19:53:13,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 1129 treesize of output 1042 [2022-11-16 19:53:13,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-11-16 19:53:57,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:53:57,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:53:57,958 INFO L217 Elim1Store]: Index analysis took 112 ms [2022-11-16 19:53:57,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 26 [2022-11-16 19:53:58,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21