./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/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_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/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_c0026cf5-03c4-4bc8-a877-4854fbf22eed/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 99f48cdcb9a25adc64e4307e90599f4e37a0b97f677ff29ab3d60f24a1c8e980 --- 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 08:12:57,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:12:57,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:12:57,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:12:57,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:12:57,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:12:57,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:12:57,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:12:57,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:12:57,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:12:57,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:12:57,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:12:57,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:12:57,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:12:57,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:12:57,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:12:57,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:12:57,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:12:57,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:12:57,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:12:57,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:12:57,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:12:57,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:12:57,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:12:57,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:12:57,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:12:57,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:12:57,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:12:57,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:12:57,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:12:57,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:12:57,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:12:57,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:12:57,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:12:57,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:12:57,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:12:57,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:12:57,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:12:57,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:12:57,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:12:57,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:12:57,427 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:12:57,479 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:12:57,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:12:57,480 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:12:57,480 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:12:57,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:12:57,482 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:12:57,482 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:12:57,482 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:12:57,483 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:12:57,483 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:12:57,484 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:12:57,485 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:12:57,485 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:12:57,485 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:12:57,485 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:12:57,486 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:12:57,486 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:12:57,486 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:12:57,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:12:57,487 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:12:57,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:12:57,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:12:57,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:12:57,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:12:57,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:12:57,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:12:57,491 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:12:57,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:12:57,491 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:12:57,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:12:57,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:12:57,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:12:57,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:12:57,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:12:57,494 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:12:57,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:12:57,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:12:57,494 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:12:57,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:12:57,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:12:57,495 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:12:57,495 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_c0026cf5-03c4-4bc8-a877-4854fbf22eed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f48cdcb9a25adc64e4307e90599f4e37a0b97f677ff29ab3d60f24a1c8e980 [2022-11-19 08:12:57,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:12:57,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:12:57,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:12:57,969 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:12:57,970 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:12:57,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i [2022-11-19 08:12:58,059 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/data/c153ce7dc/b84c39d9caa54d1499dfd4a57eaa9c35/FLAGcda2ede65 [2022-11-19 08:12:58,804 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:12:58,805 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i [2022-11-19 08:12:58,832 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/data/c153ce7dc/b84c39d9caa54d1499dfd4a57eaa9c35/FLAGcda2ede65 [2022-11-19 08:12:58,982 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/data/c153ce7dc/b84c39d9caa54d1499dfd4a57eaa9c35 [2022-11-19 08:12:58,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:12:58,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:12:58,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:12:58,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:12:58,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:12:58,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:12:58" (1/1) ... [2022-11-19 08:12:59,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e6b7a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:58, skipping insertion in model container [2022-11-19 08:12:59,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:12:58" (1/1) ... [2022-11-19 08:12:59,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:12:59,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:12:59,867 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_c0026cf5-03c4-4bc8-a877-4854fbf22eed/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[33021,33034] [2022-11-19 08:13:00,002 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_c0026cf5-03c4-4bc8-a877-4854fbf22eed/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[44124,44137] [2022-11-19 08:13:00,004 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_c0026cf5-03c4-4bc8-a877-4854fbf22eed/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[44245,44258] [2022-11-19 08:13:00,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:13:00,038 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:13:00,074 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_c0026cf5-03c4-4bc8-a877-4854fbf22eed/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[33021,33034] [2022-11-19 08:13:00,147 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_c0026cf5-03c4-4bc8-a877-4854fbf22eed/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[44124,44137] [2022-11-19 08:13:00,149 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_c0026cf5-03c4-4bc8-a877-4854fbf22eed/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[44245,44258] [2022-11-19 08:13:00,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:13:00,205 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:13:00,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:13:00 WrapperNode [2022-11-19 08:13:00,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:13:00,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:13:00,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:13:00,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:13:00,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:13:00" (1/1) ... [2022-11-19 08:13:00,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:13:00" (1/1) ... [2022-11-19 08:13:00,409 INFO L138 Inliner]: procedures = 176, calls = 328, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1147 [2022-11-19 08:13:00,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:13:00,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:13:00,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:13:00,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:13:00,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:13:00" (1/1) ... [2022-11-19 08:13:00,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:13:00" (1/1) ... [2022-11-19 08:13:00,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:13:00" (1/1) ... [2022-11-19 08:13:00,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:13:00" (1/1) ... [2022-11-19 08:13:00,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:13:00" (1/1) ... [2022-11-19 08:13:00,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:13:00" (1/1) ... [2022-11-19 08:13:00,562 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:13:00" (1/1) ... [2022-11-19 08:13:00,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:13:00" (1/1) ... [2022-11-19 08:13:00,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:13:00,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:13:00,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:13:00,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:13:00,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:13:00" (1/1) ... [2022-11-19 08:13:00,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:13:00,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:00,629 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:13:00,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:13:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:13:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:13:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:13:00,711 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:13:00,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:13:00,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:13:00,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:13:00,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:13:00,712 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 08:13:00,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:13:00,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:13:00,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:13:00,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:13:00,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:13:01,095 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:13:01,098 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:13:03,104 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:13:03,730 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:13:03,730 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-11-19 08:13:03,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:13:03 BoogieIcfgContainer [2022-11-19 08:13:03,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:13:03,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:13:03,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:13:03,742 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:13:03,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:12:58" (1/3) ... [2022-11-19 08:13:03,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27932798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:13:03, skipping insertion in model container [2022-11-19 08:13:03,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:13:00" (2/3) ... [2022-11-19 08:13:03,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27932798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:13:03, skipping insertion in model container [2022-11-19 08:13:03,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:13:03" (3/3) ... [2022-11-19 08:13:03,747 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test7-2.i [2022-11-19 08:13:03,773 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:13:03,773 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 08:13:03,844 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:13:03,852 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;@5cbeae6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:13:03,853 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 08:13:03,859 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 115 states have (on average 1.808695652173913) internal successors, (208), 117 states have internal predecessors, (208), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:13:03,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 08:13:03,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:03,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:03,871 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:13:03,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:03,879 INFO L85 PathProgramCache]: Analyzing trace with hash -62122227, now seen corresponding path program 1 times [2022-11-19 08:13:03,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:13:03,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479388687] [2022-11-19 08:13:03,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:03,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:13:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:04,158 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 08:13:04,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:13:04,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479388687] [2022-11-19 08:13:04,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479388687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:04,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:04,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:13:04,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880695875] [2022-11-19 08:13:04,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:04,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:13:04,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:13:04,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:13:04,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:13:04,239 INFO L87 Difference]: Start difference. First operand has 122 states, 115 states have (on average 1.808695652173913) internal successors, (208), 117 states have internal predecessors, (208), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 08:13:05,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:05,011 INFO L93 Difference]: Finished difference Result 243 states and 427 transitions. [2022-11-19 08:13:05,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:13:05,019 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-11-19 08:13:05,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:05,040 INFO L225 Difference]: With dead ends: 243 [2022-11-19 08:13:05,040 INFO L226 Difference]: Without dead ends: 107 [2022-11-19 08:13:05,045 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 08:13:05,054 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:05,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 08:13:05,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-19 08:13:05,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-11-19 08:13:05,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 101 states have (on average 1.1782178217821782) internal successors, (119), 102 states have internal predecessors, (119), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:13:05,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 125 transitions. [2022-11-19 08:13:05,142 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 125 transitions. Word has length 7 [2022-11-19 08:13:05,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:05,144 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 125 transitions. [2022-11-19 08:13:05,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 08:13:05,145 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 125 transitions. [2022-11-19 08:13:05,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:13:05,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:05,149 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:05,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:13:05,150 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:13:05,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:05,151 INFO L85 PathProgramCache]: Analyzing trace with hash -514891776, now seen corresponding path program 1 times [2022-11-19 08:13:05,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:13:05,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514578355] [2022-11-19 08:13:05,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:05,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:13:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:05,357 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 08:13:05,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:13:05,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514578355] [2022-11-19 08:13:05,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514578355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:05,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:05,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:13:05,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197941910] [2022-11-19 08:13:05,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:05,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:13:05,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:13:05,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:13:05,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:05,363 INFO L87 Difference]: Start difference. First operand 107 states and 125 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 08:13:08,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:08,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:08,748 INFO L93 Difference]: Finished difference Result 219 states and 256 transitions. [2022-11-19 08:13:08,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:08,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-11-19 08:13:08,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:08,754 INFO L225 Difference]: With dead ends: 219 [2022-11-19 08:13:08,754 INFO L226 Difference]: Without dead ends: 165 [2022-11-19 08:13:08,755 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 08:13:08,757 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 63 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:08,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 281 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-19 08:13:08,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-19 08:13:08,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 109. [2022-11-19 08:13:08,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 103 states have (on average 1.174757281553398) internal successors, (121), 104 states have internal predecessors, (121), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:13:08,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2022-11-19 08:13:08,785 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 9 [2022-11-19 08:13:08,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:08,788 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2022-11-19 08:13:08,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 08:13:08,788 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2022-11-19 08:13:08,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-19 08:13:08,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:08,791 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] [2022-11-19 08:13:08,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:13:08,791 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:13:08,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:08,792 INFO L85 PathProgramCache]: Analyzing trace with hash 176334190, now seen corresponding path program 1 times [2022-11-19 08:13:08,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:13:08,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046385505] [2022-11-19 08:13:08,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:08,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:13:09,049 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:13:09,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1730871773] [2022-11-19 08:13:09,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:09,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:09,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:09,061 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:09,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:13:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:10,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 1602 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:13:10,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:10,302 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 08:13:10,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:13:10,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:13:10,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046385505] [2022-11-19 08:13:10,309 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:13:10,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730871773] [2022-11-19 08:13:10,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730871773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:10,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:10,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:13:10,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760584579] [2022-11-19 08:13:10,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:10,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:13:10,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:13:10,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:13:10,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:13:10,317 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 08:13:12,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:13,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:13,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:13,545 INFO L93 Difference]: Finished difference Result 265 states and 307 transitions. [2022-11-19 08:13:13,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:13:13,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 33 [2022-11-19 08:13:13,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:13,558 INFO L225 Difference]: With dead ends: 265 [2022-11-19 08:13:13,558 INFO L226 Difference]: Without dead ends: 159 [2022-11-19 08:13:13,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 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 08:13:13,560 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 48 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:13,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 206 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-19 08:13:13,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-19 08:13:13,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2022-11-19 08:13:13,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 146 states have (on average 1.1643835616438356) internal successors, (170), 147 states have internal predecessors, (170), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:13:13,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 176 transitions. [2022-11-19 08:13:13,587 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 176 transitions. Word has length 33 [2022-11-19 08:13:13,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:13,588 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 176 transitions. [2022-11-19 08:13:13,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 08:13:13,589 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 176 transitions. [2022-11-19 08:13:13,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-19 08:13:13,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:13,592 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] [2022-11-19 08:13:13,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:13,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:13,803 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:13:13,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:13,804 INFO L85 PathProgramCache]: Analyzing trace with hash 2052583092, now seen corresponding path program 1 times [2022-11-19 08:13:13,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:13:13,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728965808] [2022-11-19 08:13:13,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:13,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:13:13,898 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:13:13,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1962415031] [2022-11-19 08:13:13,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:13,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:13,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:13,902 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:13,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:13:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:14,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:13:14,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:14,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:13:14,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 08:13:14,630 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 08:13:14,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:13:14,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:13:14,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728965808] [2022-11-19 08:13:14,631 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:13:14,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962415031] [2022-11-19 08:13:14,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962415031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:14,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:14,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:13:14,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281119674] [2022-11-19 08:13:14,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:14,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:13:14,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:13:14,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:13:14,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:14,635 INFO L87 Difference]: Start difference. First operand 152 states and 176 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 08:13:17,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:17,325 INFO L93 Difference]: Finished difference Result 201 states and 235 transitions. [2022-11-19 08:13:17,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:17,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 46 [2022-11-19 08:13:17,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:17,331 INFO L225 Difference]: With dead ends: 201 [2022-11-19 08:13:17,332 INFO L226 Difference]: Without dead ends: 197 [2022-11-19 08:13:17,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 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 08:13:17,333 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 47 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:17,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 283 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-19 08:13:17,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-19 08:13:17,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 154. [2022-11-19 08:13:17,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 148 states have (on average 1.162162162162162) internal successors, (172), 149 states have internal predecessors, (172), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:13:17,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 178 transitions. [2022-11-19 08:13:17,365 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 178 transitions. Word has length 46 [2022-11-19 08:13:17,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:17,367 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 178 transitions. [2022-11-19 08:13:17,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 08:13:17,370 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 178 transitions. [2022-11-19 08:13:17,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-19 08:13:17,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:17,372 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 08:13:17,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:17,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:17,587 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:13:17,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:17,587 INFO L85 PathProgramCache]: Analyzing trace with hash -788535011, now seen corresponding path program 1 times [2022-11-19 08:13:17,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:13:17,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825091418] [2022-11-19 08:13:17,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:17,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:13:17,692 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:13:17,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [19586560] [2022-11-19 08:13:17,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:17,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:17,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:17,703 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:17,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:13:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:18,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:13:18,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:18,518 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 08:13:18,518 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:13:18,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:13:18,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825091418] [2022-11-19 08:13:18,519 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:13:18,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19586560] [2022-11-19 08:13:18,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19586560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:18,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:18,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:13:18,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579561600] [2022-11-19 08:13:18,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:18,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:13:18,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:13:18,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:13:18,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:18,524 INFO L87 Difference]: Start difference. First operand 154 states and 178 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 08:13:20,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:20,163 INFO L93 Difference]: Finished difference Result 344 states and 400 transitions. [2022-11-19 08:13:20,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:20,172 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 08:13:20,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:20,173 INFO L225 Difference]: With dead ends: 344 [2022-11-19 08:13:20,173 INFO L226 Difference]: Without dead ends: 206 [2022-11-19 08:13:20,174 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 08:13:20,175 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 229 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:20,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 169 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-19 08:13:20,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-19 08:13:20,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 199. [2022-11-19 08:13:20,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 193 states have (on average 1.1709844559585492) internal successors, (226), 194 states have internal predecessors, (226), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:13:20,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 232 transitions. [2022-11-19 08:13:20,226 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 232 transitions. Word has length 57 [2022-11-19 08:13:20,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:20,227 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 232 transitions. [2022-11-19 08:13:20,227 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 08:13:20,228 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 232 transitions. [2022-11-19 08:13:20,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-19 08:13:20,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:20,230 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 08:13:20,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:20,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:20,444 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:13:20,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:20,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1893225867, now seen corresponding path program 1 times [2022-11-19 08:13:20,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:13:20,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121992346] [2022-11-19 08:13:20,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:20,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:13:20,515 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:13:20,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [905739678] [2022-11-19 08:13:20,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:20,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:20,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:20,518 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:20,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:13:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:48,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:13:48,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:48,668 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 08:13:48,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:13:48,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:13:48,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121992346] [2022-11-19 08:13:48,669 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:13:48,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905739678] [2022-11-19 08:13:48,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905739678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:48,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:48,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:13:48,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132270384] [2022-11-19 08:13:48,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:48,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:13:48,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:13:48,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:13:48,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:48,672 INFO L87 Difference]: Start difference. First operand 199 states and 232 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 08:13:52,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:52,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:52,618 INFO L93 Difference]: Finished difference Result 381 states and 448 transitions. [2022-11-19 08:13:52,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:52,627 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 08:13:52,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:52,629 INFO L225 Difference]: With dead ends: 381 [2022-11-19 08:13:52,629 INFO L226 Difference]: Without dead ends: 201 [2022-11-19 08:13:52,630 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 08:13:52,631 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 1 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:52,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 320 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-19 08:13:52,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-19 08:13:52,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2022-11-19 08:13:52,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 194 states have (on average 1.175257731958763) internal successors, (228), 196 states have internal predecessors, (228), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-19 08:13:52,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 235 transitions. [2022-11-19 08:13:52,658 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 235 transitions. Word has length 64 [2022-11-19 08:13:52,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:52,658 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 235 transitions. [2022-11-19 08:13:52,659 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 08:13:52,659 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 235 transitions. [2022-11-19 08:13:52,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-19 08:13:52,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:52,661 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 08:13:52,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:52,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 08:13:52,871 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:13:52,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:52,872 INFO L85 PathProgramCache]: Analyzing trace with hash -533701723, now seen corresponding path program 1 times [2022-11-19 08:13:52,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:13:52,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855006289] [2022-11-19 08:13:52,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:52,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:13:52,962 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:13:52,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1662377646] [2022-11-19 08:13:52,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:52,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:52,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:52,968 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:52,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0026cf5-03c4-4bc8-a877-4854fbf22eed/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 08:14:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:54,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:14:54,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:54,781 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 08:14:54,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:54,905 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 08:14:54,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:14:54,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855006289] [2022-11-19 08:14:54,906 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:14:54,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662377646] [2022-11-19 08:14:54,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662377646] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:54,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1504599020] [2022-11-19 08:14:54,928 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-19 08:14:54,929 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:14:54,934 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:14:54,940 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:14:54,940 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:14:55,085 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 08:14:55,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:55,095 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 08:14:55,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:55,124 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 08:14:55,125 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 08:14:55,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:55,160 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:14:55,160 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 08:14:55,171 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 15 treesize of output 1 [2022-11-19 08:14:55,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:55,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:55,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:55,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:55,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:55,241 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:14:55,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 52 treesize of output 53 [2022-11-19 08:14:55,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:55,265 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 08:14:55,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:55,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:55,323 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:14:55,323 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 08:14:55,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:55,388 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 08:14:55,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:55,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:55,402 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 08:14:55,929 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 08:14:55,983 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 08:14:56,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,041 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 08:14:56,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,102 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 9897007 treesize of output 5376300 [2022-11-19 08:14:56,160 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 08:14:56,177 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 08:14:56,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,256 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 08:14:56,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,321 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 08:14:56,402 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 08:14:56,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,472 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 08:14:56,472 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 08:14:56,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,584 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 08:14:56,584 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 08:14:56,617 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 08:14:56,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:56,674 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 08:14:56,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:14:56,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:14:56,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:14:56,943 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:14:56,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-19 08:14:56,981 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-19 08:14:56,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-11-19 08:14:57,028 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:14:57,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-19 08:14:57,074 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 08:14:57,080 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 08:14:57,087 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 08:14:57,174 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 08:14:57,199 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 08:14:57,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 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 08:14:57,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 08:14:57,478 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 08:14:57,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:57,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 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 08:14:59,281 INFO L217 Elim1Store]: Index analysis took 1395 ms [2022-11-19 08:15:03,964 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-19 08:15:03,965 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 9519771 treesize of output 9519790 [2022-11-19 08:15:05,506 INFO L217 Elim1Store]: Index analysis took 1006 ms [2022-11-19 08:15:06,037 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-19 08:15:06,038 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 9519766 treesize of output 9519770