./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/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_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c78ec383567aee735f8895b5666134248c3b9de1b96295d83b3c1c6979534c2b --- 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 20:06:24,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:06:24,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:06:25,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:06:25,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:06:25,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:06:25,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:06:25,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:06:25,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:06:25,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:06:25,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:06:25,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:06:25,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:06:25,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:06:25,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:06:25,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:06:25,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:06:25,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:06:25,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:06:25,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:06:25,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:06:25,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:06:25,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:06:25,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:06:25,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:06:25,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:06:25,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:06:25,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:06:25,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:06:25,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:06:25,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:06:25,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:06:25,045 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:06:25,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:06:25,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:06:25,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:06:25,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:06:25,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:06:25,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:06:25,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:06:25,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:06:25,061 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 20:06:25,089 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:06:25,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:06:25,102 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:06:25,102 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:06:25,103 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:06:25,103 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:06:25,103 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:06:25,104 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:06:25,104 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:06:25,104 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:06:25,105 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:06:25,105 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:06:25,106 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:06:25,106 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:06:25,106 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:06:25,106 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:06:25,106 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:06:25,107 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:06:25,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:06:25,108 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 20:06:25,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:06:25,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 20:06:25,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:06:25,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:06:25,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:06:25,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:06:25,109 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 20:06:25,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:06:25,110 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:06:25,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:06:25,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:06:25,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:06:25,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:06:25,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:06:25,111 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:06:25,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:06:25,112 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:06:25,112 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:06:25,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:06:25,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:06:25,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:06:25,113 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_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c78ec383567aee735f8895b5666134248c3b9de1b96295d83b3c1c6979534c2b [2022-11-16 20:06:25,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:06:25,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:06:25,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:06:25,477 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:06:25,478 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:06:25,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i [2022-11-16 20:06:25,544 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/data/edeca966a/778674ed08b94e2295e5051e3747dc7a/FLAG4b20bbcd8 [2022-11-16 20:06:26,160 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:06:26,160 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i [2022-11-16 20:06:26,191 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/data/edeca966a/778674ed08b94e2295e5051e3747dc7a/FLAG4b20bbcd8 [2022-11-16 20:06:26,395 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/data/edeca966a/778674ed08b94e2295e5051e3747dc7a [2022-11-16 20:06:26,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:06:26,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:06:26,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:06:26,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:06:26,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:06:26,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:06:26" (1/1) ... [2022-11-16 20:06:26,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f24471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:26, skipping insertion in model container [2022-11-16 20:06:26,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:06:26" (1/1) ... [2022-11-16 20:06:26,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:06:26,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:06:27,039 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_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i[33021,33034] [2022-11-16 20:06:27,195 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_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i[49681,49694] [2022-11-16 20:06:27,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:06:27,233 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:06:27,262 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_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i[33021,33034] [2022-11-16 20:06:27,370 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_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i[49681,49694] [2022-11-16 20:06:27,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:06:27,418 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:06:27,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:27 WrapperNode [2022-11-16 20:06:27,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:06:27,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:06:27,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:06:27,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:06:27,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:27" (1/1) ... [2022-11-16 20:06:27,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:27" (1/1) ... [2022-11-16 20:06:27,558 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-11-16 20:06:27,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:06:27,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:06:27,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:06:27,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:06:27,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:27" (1/1) ... [2022-11-16 20:06:27,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:27" (1/1) ... [2022-11-16 20:06:27,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:27" (1/1) ... [2022-11-16 20:06:27,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:27" (1/1) ... [2022-11-16 20:06:27,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:27" (1/1) ... [2022-11-16 20:06:27,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:27" (1/1) ... [2022-11-16 20:06:27,699 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:27" (1/1) ... [2022-11-16 20:06:27,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:27" (1/1) ... [2022-11-16 20:06:27,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:06:27,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:06:27,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:06:27,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:06:27,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:27" (1/1) ... [2022-11-16 20:06:27,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:06:27,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:06:27,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:06:27,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:06:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 20:06:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 20:06:27,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 20:06:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 20:06:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 20:06:27,857 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 20:06:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 20:06:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 20:06:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 20:06:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 20:06:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-16 20:06:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 20:06:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 20:06:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 20:06:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:06:27,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:06:28,188 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:06:28,190 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:06:30,589 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:06:31,171 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:06:31,171 INFO L300 CfgBuilder]: Removed 92 assume(true) statements. [2022-11-16 20:06:31,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:06:31 BoogieIcfgContainer [2022-11-16 20:06:31,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:06:31,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:06:31,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:06:31,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:06:31,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:06:26" (1/3) ... [2022-11-16 20:06:31,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d42899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:06:31, skipping insertion in model container [2022-11-16 20:06:31,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:27" (2/3) ... [2022-11-16 20:06:31,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d42899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:06:31, skipping insertion in model container [2022-11-16 20:06:31,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:06:31" (3/3) ... [2022-11-16 20:06:31,190 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-2.i [2022-11-16 20:06:31,209 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:06:31,210 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 20:06:31,297 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:06:31,305 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;@206b5eef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:06:31,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-16 20:06:31,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-16 20:06:31,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 20:06:31,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:06:31,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 20:06:31,320 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:06:31,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:06:31,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1765117460, now seen corresponding path program 1 times [2022-11-16 20:06:31,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:06:31,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71507048] [2022-11-16 20:06:31,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:06:31,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:06:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:06:31,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:06:31,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71507048] [2022-11-16 20:06:31,554 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-16 20:06:31,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703178080] [2022-11-16 20:06:31,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:06:31,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:06:31,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:06:31,558 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:06:31,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 20:06:31,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:06:31,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 20:06:31,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:06:31,860 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 20:06:31,861 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 20:06:31,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703178080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:06:31,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:06:31,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:06:31,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119717889] [2022-11-16 20:06:31,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:06:31,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 20:06:31,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:06:31,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 20:06:31,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 20:06:31,921 INFO L87 Difference]: Start difference. First operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:06:32,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:06:32,856 INFO L93 Difference]: Finished difference Result 329 states and 588 transitions. [2022-11-16 20:06:32,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 20:06:32,861 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-16 20:06:32,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:06:32,869 INFO L225 Difference]: With dead ends: 329 [2022-11-16 20:06:32,870 INFO L226 Difference]: Without dead ends: 150 [2022-11-16 20:06:32,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 20:06:32,877 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 20:06:32,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 20:06:32,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-16 20:06:32,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-16 20:06:32,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-16 20:06:32,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-16 20:06:32,930 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-16 20:06:32,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:06:32,931 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-16 20:06:32,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:06:32,931 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-16 20:06:32,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 20:06:32,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:06:32,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:06:32,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 20:06:33,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-16 20:06:33,141 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:06:33,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:06:33,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1566679301, now seen corresponding path program 1 times [2022-11-16 20:06:33,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:06:33,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674790134] [2022-11-16 20:06:33,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:06:33,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:06:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:06:33,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:06:33,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674790134] [2022-11-16 20:06:33,220 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-16 20:06:33,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254070822] [2022-11-16 20:06:33,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:06:33,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:06:33,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:06:33,227 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:06:33,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 20:06:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:06:33,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 20:06:33,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:06:33,552 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 20:06:33,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 20:06:33,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254070822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:06:33,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:06:33,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:06:33,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529731986] [2022-11-16 20:06:33,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:06:33,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:06:33,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:06:33,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:06:33,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:06:33,557 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 20:06:34,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:06:34,790 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-16 20:06:34,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:06:34,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2022-11-16 20:06:34,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:06:34,797 INFO L225 Difference]: With dead ends: 342 [2022-11-16 20:06:34,797 INFO L226 Difference]: Without dead ends: 290 [2022-11-16 20:06:34,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 20:06:34,799 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 20:06:34,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 20:06:34,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-16 20:06:34,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-16 20:06:34,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-16 20:06:34,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-16 20:06:34,818 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-16 20:06:34,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:06:34,819 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-16 20:06:34,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 20:06:34,819 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-16 20:06:34,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-16 20:06:34,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:06:34,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:34,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 20:06:35,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:06:35,025 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:06:35,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:06:35,026 INFO L85 PathProgramCache]: Analyzing trace with hash -867190139, now seen corresponding path program 1 times [2022-11-16 20:06:35,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:06:35,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95085765] [2022-11-16 20:06:35,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:06:35,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:06:35,341 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 20:06:35,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [337519017] [2022-11-16 20:06:35,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:06:35,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:06:35,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:06:35,343 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:06:35,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 20:06:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:06:36,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 20:06:36,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:06:36,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:06:36,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:06:37,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:06:37,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:06:37,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95085765] [2022-11-16 20:06:37,107 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 20:06:37,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337519017] [2022-11-16 20:06:37,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337519017] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:06:37,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [82094568] [2022-11-16 20:06:37,137 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-16 20:06:37,137 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:06:37,142 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:06:37,148 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:06:37,149 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:06:37,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,345 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 20:06:37,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-16 20:06:37,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,378 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 20:06:37,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-16 20:06:37,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:06:37,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,470 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:06:37,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-16 20:06:37,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-16 20:06:37,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,503 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:06:37,505 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-16 20:06:37,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:06:37,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:37,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,022 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 20:06:38,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,094 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 9075036 treesize of output 5376290 [2022-11-16 20:06:38,159 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 20:06:38,189 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 20:06:38,708 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 20:06:38,728 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 20:06:38,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,818 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 20:06:38,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:38,871 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 9075036 treesize of output 5376290 [2022-11-16 20:06:38,919 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:06:49,336 WARN L233 SmtUtils]: Spent 7.26s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:06:57,351 WARN L233 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:06:57,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [82094568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:06:57,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 20:06:57,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-16 20:06:57,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239888074] [2022-11-16 20:06:57,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:06:57,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 20:06:57,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:06:57,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 20:06:57,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-16 20:06:57,361 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 20:07:01,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:07:01,455 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2022-11-16 20:07:01,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 20:07:01,456 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2022-11-16 20:07:01,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:07:01,458 INFO L225 Difference]: With dead ends: 310 [2022-11-16 20:07:01,458 INFO L226 Difference]: Without dead ends: 161 [2022-11-16 20:07:01,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 18.4s TimeCoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-16 20:07:01,463 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 8 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:07:01,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 405 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 157 Invalid, 0 Unknown, 11 Unchecked, 4.1s Time] [2022-11-16 20:07:01,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-16 20:07:01,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-16 20:07:01,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-16 20:07:01,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-16 20:07:01,488 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-16 20:07:01,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:07:01,488 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-16 20:07:01,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 20:07:01,489 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-16 20:07:01,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-16 20:07:01,491 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:07:01,492 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:07:01,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 20:07:01,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:07:01,706 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:07:01,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:07:01,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1835922908, now seen corresponding path program 1 times [2022-11-16 20:07:01,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:07:01,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976037697] [2022-11-16 20:07:01,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:07:01,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:07:01,910 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 20:07:01,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1031103884] [2022-11-16 20:07:01,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:07:01,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:07:01,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:07:01,912 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:07:01,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 20:07:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:07:03,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 20:07:03,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:07:03,437 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 20:07:03,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:07:03,587 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 20:07:03,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:07:03,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976037697] [2022-11-16 20:07:03,588 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 20:07:03,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031103884] [2022-11-16 20:07:03,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031103884] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:07:03,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1683535506] [2022-11-16 20:07:03,593 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-16 20:07:03,593 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:07:03,594 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:07:03,594 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:07:03,595 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:07:03,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:03,742 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 20:07:03,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-16 20:07:03,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:03,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 20:07:03,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:03,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:03,831 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 20:07:03,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-16 20:07:03,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:03,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:07:03,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:03,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:03,911 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:07:03,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-16 20:07:03,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:03,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:07:03,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:03,955 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:07:03,958 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-16 20:07:04,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,445 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 20:07:04,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,497 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 20:07:04,544 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 20:07:04,569 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 20:07:04,612 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 20:07:04,632 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 20:07:04,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,703 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 20:07:04,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,773 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 20:07:04,868 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 20:07:04,904 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 20:07:04,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:04,993 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-16 20:07:04,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-16 20:07:05,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,097 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-16 20:07:05,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-16 20:07:05,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:05,209 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 20:07:05,969 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 20:07:05,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-16 20:07:06,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,046 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 20:07:06,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,100 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 9075036 treesize of output 5376290 [2022-11-16 20:07:06,168 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 20:07:06,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,231 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 20:07:06,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,293 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 20:07:06,328 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 20:07:06,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,424 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 20:07:06,470 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 20:07:06,502 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 20:07:06,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,595 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-16 20:07:06,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-16 20:07:06,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:07:06,719 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-16 20:07:06,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-16 20:07:07,200 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-16 20:07:07,369 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:07:15,963 WARN L233 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:07:25,048 WARN L233 SmtUtils]: Spent 6.88s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:07:37,776 WARN L233 SmtUtils]: Spent 8.60s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:07:50,465 WARN L233 SmtUtils]: Spent 6.52s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:08:03,702 WARN L233 SmtUtils]: Spent 7.04s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:08:04,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1683535506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:08:04,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 20:08:04,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-16 20:08:04,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114961964] [2022-11-16 20:08:04,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:08:04,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 20:08:04,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:08:04,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 20:08:04,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-16 20:08:04,479 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 20:08:09,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:08:09,436 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-16 20:08:09,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 20:08:09,436 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-11-16 20:08:09,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:08:09,438 INFO L225 Difference]: With dead ends: 315 [2022-11-16 20:08:09,438 INFO L226 Difference]: Without dead ends: 166 [2022-11-16 20:08:09,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 57.1s TimeCoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-16 20:08:09,440 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 9 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 272 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-16 20:08:09,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 812 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 217 Invalid, 0 Unknown, 272 Unchecked, 4.9s Time] [2022-11-16 20:08:09,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-16 20:08:09,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-16 20:08:09,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-16 20:08:09,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-16 20:08:09,474 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-16 20:08:09,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:08:09,474 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-16 20:08:09,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 20:08:09,474 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-16 20:08:09,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-16 20:08:09,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:08:09,477 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:08:09,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 20:08:09,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:08:09,683 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:08:09,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:08:09,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1163140644, now seen corresponding path program 1 times [2022-11-16 20:08:09,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:08:09,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895783383] [2022-11-16 20:08:09,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:08:09,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:08:09,882 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 20:08:09,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [122474925] [2022-11-16 20:08:09,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:08:09,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:08:09,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:08:09,888 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:08:09,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc9f88ab-97a8-4116-b1de-af32edf3eb2c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 20:08:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:08:11,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 20:08:11,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:08:11,352 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:08:11,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:08:11,486 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:08:11,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:08:11,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895783383] [2022-11-16 20:08:11,487 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 20:08:11,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122474925] [2022-11-16 20:08:11,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122474925] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:08:11,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [145856423] [2022-11-16 20:08:11,491 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-16 20:08:11,491 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:08:11,492 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:08:11,492 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:08:11,492 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:08:11,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:11,633 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 20:08:11,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-16 20:08:11,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:11,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 20:08:11,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:11,674 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:08:11,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:11,692 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 20:08:11,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-16 20:08:11,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:11,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:11,744 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 20:08:11,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-16 20:08:11,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:11,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:08:11,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:11,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:08:11,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:11,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:11,843 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:08:11,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-16 20:08:12,172 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 20:08:12,193 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 20:08:12,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,250 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 20:08:12,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,301 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 9075036 treesize of output 5376290 [2022-11-16 20:08:12,422 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 20:08:12,438 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 20:08:12,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,509 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 20:08:12,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,566 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 20:08:12,647 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 20:08:12,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,724 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-16 20:08:12,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-16 20:08:12,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,819 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-16 20:08:12,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-16 20:08:12,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:12,885 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 20:08:12,930 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 20:08:13,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 20:08:13,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 20:08:13,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 20:08:13,169 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 20:08:13,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-16 20:08:13,204 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-16 20:08:13,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-11-16 20:08:13,240 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 20:08:13,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-16 20:08:13,277 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 20:08:13,284 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 20:08:13,305 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 20:08:13,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,398 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 20:08:13,436 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 20:08:13,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-16 20:08:13,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:08:13,648 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 20:08:13,670 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 20:08:13,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-16 20:08:15,432 INFO L217 Elim1Store]: Index analysis took 949 ms [2022-11-16 20:08:24,542 WARN L233 SmtUtils]: Spent 9.11s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 20:08:24,543 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-16 20:08:24,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-11-16 20:08:28,818 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |ULTIMATE.start_main_~user~0#1.base| 1) [2022-11-16 20:08:29,069 INFO L217 Elim1Store]: Index analysis took 4352 ms [2022-11-16 20:08:30,639 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-16 20:08:30,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-11-16 20:11:56,187 WARN L233 SmtUtils]: Spent 3.42m on a formula simplification. DAG size of input: 198 DAG size of output: 106 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 20:11:56,189 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-11-16 20:11:56,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 8576 treesize of output 6519 [2022-11-16 20:11:56,814 INFO L217 Elim1Store]: Index analysis took 240 ms [2022-11-16 20:13:50,794 WARN L233 SmtUtils]: Spent 1.90m on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 20:13:50,795 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-16 20:13:50,796 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 8524 treesize of output 7357 [2022-11-16 20:13:57,063 INFO L217 Elim1Store]: Index analysis took 4323 ms