./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b879d991ca85089954916015c9838d386a5c85365dad0e09e537aeb772eaaaf8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 06:58:04,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:58:04,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:58:04,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:58:04,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:58:04,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:58:04,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:58:04,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:58:04,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:58:04,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:58:04,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:58:04,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:58:04,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:58:04,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:58:04,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:58:04,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:58:04,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:58:04,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:58:04,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:58:04,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:58:04,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:58:04,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:58:04,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:58:04,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:58:04,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:58:04,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:58:04,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:58:04,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:58:04,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:58:04,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:58:04,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:58:04,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:58:04,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:58:04,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:58:04,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:58:04,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:58:04,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:58:04,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:58:04,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:58:04,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:58:04,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:58:04,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 06:58:04,420 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:58:04,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:58:04,421 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:58:04,421 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:58:04,422 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:58:04,423 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:58:04,423 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:58:04,424 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:58:04,424 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:58:04,424 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:58:04,425 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:58:04,426 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:58:04,426 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:58:04,426 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:58:04,427 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:58:04,427 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:58:04,427 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:58:04,428 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:58:04,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:58:04,429 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:58:04,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:58:04,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:58:04,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:58:04,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:58:04,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:58:04,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:58:04,431 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:58:04,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:58:04,432 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:58:04,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:58:04,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:58:04,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:58:04,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:58:04,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:58:04,434 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:58:04,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:58:04,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:58:04,435 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:58:04,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:58:04,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:58:04,436 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:58:04,437 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_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b879d991ca85089954916015c9838d386a5c85365dad0e09e537aeb772eaaaf8 [2022-11-19 06:58:04,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:58:04,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:58:04,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:58:04,800 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:58:04,801 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:58:04,803 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i [2022-11-19 06:58:04,882 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/data/9f8e2dd7b/6aa0bab6340f429f97bde68f526e3358/FLAG2b2f75600 [2022-11-19 06:58:05,543 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:58:05,544 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i [2022-11-19 06:58:05,570 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/data/9f8e2dd7b/6aa0bab6340f429f97bde68f526e3358/FLAG2b2f75600 [2022-11-19 06:58:05,731 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/data/9f8e2dd7b/6aa0bab6340f429f97bde68f526e3358 [2022-11-19 06:58:05,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:58:05,737 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:58:05,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:58:05,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:58:05,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:58:05,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:58:05" (1/1) ... [2022-11-19 06:58:05,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10501901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:05, skipping insertion in model container [2022-11-19 06:58:05,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:58:05" (1/1) ... [2022-11-19 06:58:05,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:58:05,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:58:06,364 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i[37019,37032] [2022-11-19 06:58:06,525 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i[47352,47365] [2022-11-19 06:58:06,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:58:06,558 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:58:06,586 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i[37019,37032] [2022-11-19 06:58:06,633 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i[47352,47365] [2022-11-19 06:58:06,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:58:06,680 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:58:06,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:06 WrapperNode [2022-11-19 06:58:06,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:58:06,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:58:06,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:58:06,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:58:06,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:06" (1/1) ... [2022-11-19 06:58:06,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:06" (1/1) ... [2022-11-19 06:58:06,812 INFO L138 Inliner]: procedures = 208, calls = 286, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1035 [2022-11-19 06:58:06,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:58:06,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:58:06,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:58:06,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:58:06,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:06" (1/1) ... [2022-11-19 06:58:06,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:06" (1/1) ... [2022-11-19 06:58:06,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:06" (1/1) ... [2022-11-19 06:58:06,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:06" (1/1) ... [2022-11-19 06:58:06,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:06" (1/1) ... [2022-11-19 06:58:06,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:06" (1/1) ... [2022-11-19 06:58:06,975 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:06" (1/1) ... [2022-11-19 06:58:06,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:06" (1/1) ... [2022-11-19 06:58:06,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:58:06,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:58:06,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:58:06,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:58:06,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:06" (1/1) ... [2022-11-19 06:58:07,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:58:07,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:58:07,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:58:07,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:58:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 06:58:07,082 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 06:58:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:58:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 06:58:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:58:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:58:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:58:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 06:58:07,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 06:58:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:58:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:58:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:58:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:58:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:58:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:58:07,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:58:07,407 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:58:07,409 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:58:09,049 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:58:09,466 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:58:09,467 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-11-19 06:58:09,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:58:09 BoogieIcfgContainer [2022-11-19 06:58:09,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:58:09,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:58:09,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:58:09,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:58:09,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:58:05" (1/3) ... [2022-11-19 06:58:09,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d512436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:58:09, skipping insertion in model container [2022-11-19 06:58:09,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:06" (2/3) ... [2022-11-19 06:58:09,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d512436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:58:09, skipping insertion in model container [2022-11-19 06:58:09,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:58:09" (3/3) ... [2022-11-19 06:58:09,478 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test2-2.i [2022-11-19 06:58:09,497 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:58:09,497 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 06:58:09,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:58:09,555 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;@6f06aa89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:58:09,555 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 06:58:09,584 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 06:58:09,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 06:58:09,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:09,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:09,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:58:09,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:09,598 INFO L85 PathProgramCache]: Analyzing trace with hash 527974349, now seen corresponding path program 1 times [2022-11-19 06:58:09,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:09,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106546598] [2022-11-19 06:58:09,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:09,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:09,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:09,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:09,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106546598] [2022-11-19 06:58:09,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106546598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:09,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:09,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:58:09,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456557910] [2022-11-19 06:58:09,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:09,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 06:58:09,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:09,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 06:58:09,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:58:09,817 INFO L87 Difference]: Start difference. First operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:58:11,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:58:11,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:11,785 INFO L93 Difference]: Finished difference Result 245 states and 432 transitions. [2022-11-19 06:58:11,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 06:58:11,795 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 06:58:11,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:11,806 INFO L225 Difference]: With dead ends: 245 [2022-11-19 06:58:11,806 INFO L226 Difference]: Without dead ends: 107 [2022-11-19 06:58:11,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:58:11,813 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:11,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-19 06:58:11,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-19 06:58:11,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-11-19 06:58:11,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 95 states have (on average 1.2210526315789474) internal successors, (116), 101 states have internal predecessors, (116), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 06:58:11,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 132 transitions. [2022-11-19 06:58:11,863 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 132 transitions. Word has length 8 [2022-11-19 06:58:11,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:11,864 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 132 transitions. [2022-11-19 06:58:11,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:58:11,864 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 132 transitions. [2022-11-19 06:58:11,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 06:58:11,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:11,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:11,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:58:11,867 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:58:11,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:11,868 INFO L85 PathProgramCache]: Analyzing trace with hash -949222695, now seen corresponding path program 1 times [2022-11-19 06:58:11,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:11,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484787508] [2022-11-19 06:58:11,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:11,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:12,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:12,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:12,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484787508] [2022-11-19 06:58:12,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484787508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:12,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:12,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:58:12,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488180358] [2022-11-19 06:58:12,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:12,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:58:12,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:12,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:58:12,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:58:12,330 INFO L87 Difference]: Start difference. First operand 107 states and 132 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:58:13,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:13,432 INFO L93 Difference]: Finished difference Result 222 states and 282 transitions. [2022-11-19 06:58:13,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:58:13,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 06:58:13,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:13,438 INFO L225 Difference]: With dead ends: 222 [2022-11-19 06:58:13,438 INFO L226 Difference]: Without dead ends: 168 [2022-11-19 06:58:13,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:13,440 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 66 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:13,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 316 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-19 06:58:13,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-19 06:58:13,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 109. [2022-11-19 06:58:13,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 97 states have (on average 1.2164948453608246) internal successors, (118), 103 states have internal predecessors, (118), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 06:58:13,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2022-11-19 06:58:13,455 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 20 [2022-11-19 06:58:13,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:13,455 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2022-11-19 06:58:13,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:58:13,456 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2022-11-19 06:58:13,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-19 06:58:13,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:13,457 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:13,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:58:13,458 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:58:13,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:13,459 INFO L85 PathProgramCache]: Analyzing trace with hash 121394151, now seen corresponding path program 1 times [2022-11-19 06:58:13,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:13,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37918713] [2022-11-19 06:58:13,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:13,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:13,652 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:58:13,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [493719000] [2022-11-19 06:58:13,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:13,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:58:13,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:58:13,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:58:13,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:58:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:14,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1659 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 06:58:14,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:58:14,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:14,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:58:14,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:14,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37918713] [2022-11-19 06:58:14,618 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:58:14,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493719000] [2022-11-19 06:58:14,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493719000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:14,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:14,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:58:14,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202946403] [2022-11-19 06:58:14,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:14,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:58:14,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:14,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:58:14,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:58:14,622 INFO L87 Difference]: Start difference. First operand 109 states and 134 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:58:15,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:15,695 INFO L93 Difference]: Finished difference Result 260 states and 324 transitions. [2022-11-19 06:58:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:58:15,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-19 06:58:15,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:15,703 INFO L225 Difference]: With dead ends: 260 [2022-11-19 06:58:15,703 INFO L226 Difference]: Without dead ends: 154 [2022-11-19 06:58:15,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:58:15,706 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 43 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:15,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 238 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-19 06:58:15,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-11-19 06:58:15,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2022-11-19 06:58:15,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 135 states have (on average 1.2148148148148148) internal successors, (164), 146 states have internal predecessors, (164), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 06:58:15,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 190 transitions. [2022-11-19 06:58:15,726 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 190 transitions. Word has length 44 [2022-11-19 06:58:15,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:15,727 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 190 transitions. [2022-11-19 06:58:15,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:58:15,728 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 190 transitions. [2022-11-19 06:58:15,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-19 06:58:15,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:15,730 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:15,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 06:58:15,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:58:15,940 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:58:15,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:15,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1666471257, now seen corresponding path program 1 times [2022-11-19 06:58:15,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:15,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770428068] [2022-11-19 06:58:15,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:15,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:16,020 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:58:16,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1209487775] [2022-11-19 06:58:16,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:16,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:58:16,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:58:16,024 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:58:16,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:58:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:16,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 06:58:16,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:58:16,784 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 06:58:16,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:58:16,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:16,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770428068] [2022-11-19 06:58:16,790 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:58:16,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209487775] [2022-11-19 06:58:16,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209487775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:16,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:16,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:58:16,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533844114] [2022-11-19 06:58:16,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:16,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:58:16,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:16,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:58:16,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:58:16,800 INFO L87 Difference]: Start difference. First operand 152 states and 190 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 06:58:17,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:17,380 INFO L93 Difference]: Finished difference Result 258 states and 321 transitions. [2022-11-19 06:58:17,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:58:17,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-11-19 06:58:17,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:17,383 INFO L225 Difference]: With dead ends: 258 [2022-11-19 06:58:17,383 INFO L226 Difference]: Without dead ends: 122 [2022-11-19 06:58:17,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:17,385 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 163 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:17,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 153 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 06:58:17,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-19 06:58:17,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-11-19 06:58:17,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.1818181818181819) internal successors, (130), 116 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 06:58:17,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 146 transitions. [2022-11-19 06:58:17,413 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 146 transitions. Word has length 57 [2022-11-19 06:58:17,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:17,414 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 146 transitions. [2022-11-19 06:58:17,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 06:58:17,414 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 146 transitions. [2022-11-19 06:58:17,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-19 06:58:17,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:17,416 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:17,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:58:17,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:58:17,617 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:58:17,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:17,618 INFO L85 PathProgramCache]: Analyzing trace with hash 669433128, now seen corresponding path program 1 times [2022-11-19 06:58:17,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:17,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145357687] [2022-11-19 06:58:17,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:17,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:17,716 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:58:17,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1733114281] [2022-11-19 06:58:17,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:17,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:58:17,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:58:17,718 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:58:17,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 06:59:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:03,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 06:59:03,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:59:03,109 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:59:03,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:59:03,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:03,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145357687] [2022-11-19 06:59:03,117 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:59:03,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733114281] [2022-11-19 06:59:03,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733114281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:03,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:03,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:59:03,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581561870] [2022-11-19 06:59:03,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:03,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:59:03,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:03,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:59:03,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:59:03,120 INFO L87 Difference]: Start difference. First operand 122 states and 146 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 06:59:04,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:04,904 INFO L93 Difference]: Finished difference Result 227 states and 276 transitions. [2022-11-19 06:59:04,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:59:04,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2022-11-19 06:59:04,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:04,912 INFO L225 Difference]: With dead ends: 227 [2022-11-19 06:59:04,912 INFO L226 Difference]: Without dead ends: 124 [2022-11-19 06:59:04,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:59:04,913 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 1 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:04,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 347 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-19 06:59:04,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-19 06:59:04,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-11-19 06:59:04,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 111 states have (on average 1.1891891891891893) internal successors, (132), 118 states have internal predecessors, (132), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-11-19 06:59:04,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 149 transitions. [2022-11-19 06:59:04,930 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 149 transitions. Word has length 64 [2022-11-19 06:59:04,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:04,930 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 149 transitions. [2022-11-19 06:59:04,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 06:59:04,931 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 149 transitions. [2022-11-19 06:59:04,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-19 06:59:04,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:04,933 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:59:04,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-19 06:59:05,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:59:05,147 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:05,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:05,147 INFO L85 PathProgramCache]: Analyzing trace with hash -2127571752, now seen corresponding path program 1 times [2022-11-19 06:59:05,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:05,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614661814] [2022-11-19 06:59:05,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:05,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:05,231 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:59:05,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [731383742] [2022-11-19 06:59:05,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:05,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:59:05,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:59:05,234 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:59:05,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e240a06-6320-475b-8a8f-dc1c8fddc112/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 06:59:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:27,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 06:59:27,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:59:27,406 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 06:59:27,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:59:27,549 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 06:59:27,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:27,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614661814] [2022-11-19 06:59:27,550 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:59:27,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731383742] [2022-11-19 06:59:27,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731383742] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:59:27,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [613755124] [2022-11-19 06:59:27,572 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-19 06:59:27,572 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:59:27,576 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:59:27,581 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:59:27,582 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:59:27,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:27,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-19 06:59:27,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:59:27,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:59:27,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:27,758 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 06:59:27,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-19 06:59:27,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:27,788 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 06:59:27,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-19 06:59:27,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:27,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:59:27,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:27,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:27,891 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:59:27,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 06:59:27,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:27,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:27,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-19 06:59:27,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:27,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:59:27,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:27,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:27,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:27,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:27,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-11-19 06:59:28,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 5376288 [2022-11-19 06:59:28,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 8458577 treesize of output 4759834 [2022-11-19 06:59:28,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 06:59:28,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 06:59:28,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 06:59:28,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-19 06:59:28,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-19 06:59:28,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 06:59:28,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 06:59:28,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 06:59:28,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:28,998 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 06:59:28,999 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 [2022-11-19 06:59:29,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,108 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 06:59:29,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-19 06:59:29,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-19 06:59:29,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 06:59:29,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 06:59:29,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 06:59:29,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 06:59:29,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 06:59:29,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-19 06:59:29,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 06:59:29,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 06:59:29,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 06:59:29,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-19 06:59:29,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 06:59:29,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 06:59:29,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:29,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-19 06:59:29,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 06:59:29,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 06:59:33,099 INFO L217 Elim1Store]: Index analysis took 2735 ms [2022-11-19 06:59:37,528 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-19 06:59:37,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519777 treesize of output 9519796 [2022-11-19 06:59:38,796 INFO L217 Elim1Store]: Index analysis took 1067 ms [2022-11-19 06:59:42,001 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-19 06:59:42,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9519772 treesize of output 9519776