./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.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_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/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_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/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_06094447-88cf-4567-adf5-d3af0d4933a8/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 2f1036b64b29bd922a31935b87e7c90d1acbba8f8044f40e2525bb03d5de1e7f --- 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 08:11:46,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:11:46,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:11:46,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:11:46,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:11:46,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:11:46,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:11:46,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:11:46,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:11:46,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:11:46,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:11:46,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:11:46,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:11:46,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:11:46,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:11:46,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:11:46,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:11:46,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:11:46,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:11:46,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:11:46,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:11:46,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:11:46,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:11:46,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:11:46,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:11:46,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:11:46,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:11:46,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:11:46,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:11:46,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:11:46,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:11:46,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:11:46,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:11:46,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:11:46,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:11:46,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:11:46,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:11:46,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:11:46,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:11:46,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:11:46,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:11:46,629 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:11:46,677 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:11:46,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:11:46,679 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:11:46,679 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:11:46,680 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:11:46,681 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:11:46,681 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:11:46,681 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:11:46,682 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:11:46,682 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:11:46,683 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:11:46,684 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:11:46,684 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:11:46,685 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:11:46,685 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:11:46,685 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:11:46,686 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:11:46,686 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:11:46,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:11:46,687 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:11:46,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:11:46,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:11:46,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:11:46,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:11:46,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:11:46,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:11:46,690 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:11:46,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:11:46,690 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:11:46,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:11:46,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:11:46,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:11:46,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:11:46,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:11:46,693 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:11:46,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:11:46,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:11:46,694 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:11:46,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:11:46,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:11:46,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:11:46,695 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_06094447-88cf-4567-adf5-d3af0d4933a8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f1036b64b29bd922a31935b87e7c90d1acbba8f8044f40e2525bb03d5de1e7f [2022-11-19 08:11:47,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:11:47,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:11:47,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:11:47,063 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:11:47,063 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:11:47,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i [2022-11-19 08:11:47,171 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/data/cd6c4afb2/7a5fbd923ab64211a423e281bea0bc08/FLAG420898d4c [2022-11-19 08:11:47,833 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:11:47,834 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i [2022-11-19 08:11:47,856 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/data/cd6c4afb2/7a5fbd923ab64211a423e281bea0bc08/FLAG420898d4c [2022-11-19 08:11:48,047 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/data/cd6c4afb2/7a5fbd923ab64211a423e281bea0bc08 [2022-11-19 08:11:48,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:11:48,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:11:48,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:11:48,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:11:48,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:11:48,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:11:48" (1/1) ... [2022-11-19 08:11:48,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dfac2e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:48, skipping insertion in model container [2022-11-19 08:11:48,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:11:48" (1/1) ... [2022-11-19 08:11:48,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:11:48,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:11:48,740 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_06094447-88cf-4567-adf5-d3af0d4933a8/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[33021,33034] [2022-11-19 08:11:48,926 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_06094447-88cf-4567-adf5-d3af0d4933a8/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[44590,44603] [2022-11-19 08:11:48,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:11:48,954 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:11:48,987 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_06094447-88cf-4567-adf5-d3af0d4933a8/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[33021,33034] [2022-11-19 08:11:49,052 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_06094447-88cf-4567-adf5-d3af0d4933a8/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[44590,44603] [2022-11-19 08:11:49,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:11:49,114 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:11:49,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:49 WrapperNode [2022-11-19 08:11:49,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:11:49,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:11:49,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:11:49,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:11:49,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:49" (1/1) ... [2022-11-19 08:11:49,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:49" (1/1) ... [2022-11-19 08:11:49,230 INFO L138 Inliner]: procedures = 177, calls = 336, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1177 [2022-11-19 08:11:49,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:11:49,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:11:49,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:11:49,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:11:49,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:49" (1/1) ... [2022-11-19 08:11:49,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:49" (1/1) ... [2022-11-19 08:11:49,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:49" (1/1) ... [2022-11-19 08:11:49,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:49" (1/1) ... [2022-11-19 08:11:49,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:49" (1/1) ... [2022-11-19 08:11:49,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:49" (1/1) ... [2022-11-19 08:11:49,385 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:49" (1/1) ... [2022-11-19 08:11:49,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:49" (1/1) ... [2022-11-19 08:11:49,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:11:49,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:11:49,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:11:49,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:11:49,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:49" (1/1) ... [2022-11-19 08:11:49,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:11:49,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:49,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:11:49,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:11:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:11:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 08:11:49,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 08:11:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:11:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:11:49,490 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:11:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:11:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:11:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:11:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:11:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 08:11:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:11:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:11:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:11:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:11:49,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:11:49,848 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:11:49,851 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:11:51,888 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:11:52,467 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:11:52,467 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-11-19 08:11:52,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:11:52 BoogieIcfgContainer [2022-11-19 08:11:52,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:11:52,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:11:52,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:11:52,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:11:52,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:11:48" (1/3) ... [2022-11-19 08:11:52,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22bfcdee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:11:52, skipping insertion in model container [2022-11-19 08:11:52,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:49" (2/3) ... [2022-11-19 08:11:52,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22bfcdee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:11:52, skipping insertion in model container [2022-11-19 08:11:52,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:11:52" (3/3) ... [2022-11-19 08:11:52,493 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test3-2.i [2022-11-19 08:11:52,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:11:52,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 08:11:52,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:11:52,605 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;@7ea8314a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:11:52,605 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 08:11:52,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 08:11:52,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:11:52,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:52,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:52,626 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:52,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:52,636 INFO L85 PathProgramCache]: Analyzing trace with hash 706395230, now seen corresponding path program 1 times [2022-11-19 08:11:52,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:52,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764234693] [2022-11-19 08:11:52,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:52,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:52,904 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 08:11:52,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:52,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764234693] [2022-11-19 08:11:52,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764234693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:52,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:52,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:11:52,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499532787] [2022-11-19 08:11:52,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:52,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:11:52,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:52,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:11:52,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:11:52,963 INFO L87 Difference]: Start difference. First operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:53,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:53,432 INFO L93 Difference]: Finished difference Result 273 states and 482 transitions. [2022-11-19 08:11:53,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:11:53,437 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 08:11:53,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:53,448 INFO L225 Difference]: With dead ends: 273 [2022-11-19 08:11:53,448 INFO L226 Difference]: Without dead ends: 122 [2022-11-19 08:11:53,453 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 08:11:53,457 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:53,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:11:53,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-19 08:11:53,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-11-19 08:11:53,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 08:11:53,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2022-11-19 08:11:53,522 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2022-11-19 08:11:53,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:53,523 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2022-11-19 08:11:53,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:53,524 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2022-11-19 08:11:53,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:11:53,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:53,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:53,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:11:53,526 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:53,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:53,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1888522438, now seen corresponding path program 1 times [2022-11-19 08:11:53,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:53,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870644575] [2022-11-19 08:11:53,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:53,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:53,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:53,765 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 08:11:53,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:53,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870644575] [2022-11-19 08:11:53,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870644575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:53,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:53,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:11:53,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488879218] [2022-11-19 08:11:53,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:53,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:11:53,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:53,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:11:53,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:11:53,769 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:56,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:11:57,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:57,386 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2022-11-19 08:11:57,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:11:57,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-19 08:11:57,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:57,395 INFO L225 Difference]: With dead ends: 258 [2022-11-19 08:11:57,395 INFO L226 Difference]: Without dead ends: 189 [2022-11-19 08:11:57,396 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 08:11:57,397 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:57,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 355 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-19 08:11:57,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-19 08:11:57,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2022-11-19 08:11:57,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 08:11:57,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2022-11-19 08:11:57,417 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2022-11-19 08:11:57,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:57,417 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2022-11-19 08:11:57,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:57,418 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2022-11-19 08:11:57,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-19 08:11:57,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:57,420 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:57,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:11:57,421 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:57,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:57,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1227513377, now seen corresponding path program 1 times [2022-11-19 08:11:57,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:57,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304591197] [2022-11-19 08:11:57,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:57,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:57,651 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:11:57,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1598005912] [2022-11-19 08:11:57,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:57,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:57,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:57,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:11:57,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:11:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:58,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 1630 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:11:58,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:58,710 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 08:11:58,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:11:58,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:58,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304591197] [2022-11-19 08:11:58,711 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:11:58,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598005912] [2022-11-19 08:11:58,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598005912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:58,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:58,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:11:58,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992785836] [2022-11-19 08:11:58,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:58,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:11:58,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:58,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:11:58,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:11:58,715 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:00,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:12:01,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:01,589 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2022-11-19 08:12:01,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:12:01,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-11-19 08:12:01,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:01,599 INFO L225 Difference]: With dead ends: 304 [2022-11-19 08:12:01,599 INFO L226 Difference]: Without dead ends: 183 [2022-11-19 08:12:01,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 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 08:12:01,601 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:01,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 278 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-19 08:12:01,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-19 08:12:01,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2022-11-19 08:12:01,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 08:12:01,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2022-11-19 08:12:01,621 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2022-11-19 08:12:01,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:01,622 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2022-11-19 08:12:01,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:01,622 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2022-11-19 08:12:01,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-19 08:12:01,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:01,624 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] [2022-11-19 08:12:01,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:01,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-19 08:12:01,835 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:12:01,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:01,835 INFO L85 PathProgramCache]: Analyzing trace with hash 691085995, now seen corresponding path program 1 times [2022-11-19 08:12:01,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:12:01,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931945154] [2022-11-19 08:12:01,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:01,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:12:01,939 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:12:01,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [238789891] [2022-11-19 08:12:01,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:01,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:01,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:12:01,942 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:12:01,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:12:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:02,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:12:02,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:02,577 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 08:12:02,591 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 08:12:02,599 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 08:12:02,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:12:02,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:12:02,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931945154] [2022-11-19 08:12:02,600 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:12:02,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238789891] [2022-11-19 08:12:02,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238789891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:02,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:12:02,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:12:02,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843592167] [2022-11-19 08:12:02,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:02,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:12:02,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:12:02,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:12:02,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:12:02,603 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:12:04,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:04,433 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2022-11-19 08:12:04,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:12:04,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2022-11-19 08:12:04,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:04,439 INFO L225 Difference]: With dead ends: 231 [2022-11-19 08:12:04,440 INFO L226 Difference]: Without dead ends: 212 [2022-11-19 08:12:04,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 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 08:12:04,442 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 47 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:04,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 354 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-19 08:12:04,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-19 08:12:04,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2022-11-19 08:12:04,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 08:12:04,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2022-11-19 08:12:04,458 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2022-11-19 08:12:04,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:04,459 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2022-11-19 08:12:04,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:12:04,459 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2022-11-19 08:12:04,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-19 08:12:04,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:04,461 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 08:12:04,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:04,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:04,670 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:12:04,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:04,671 INFO L85 PathProgramCache]: Analyzing trace with hash 400842882, now seen corresponding path program 1 times [2022-11-19 08:12:04,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:12:04,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815536079] [2022-11-19 08:12:04,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:04,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:12:04,778 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:12:04,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1000731674] [2022-11-19 08:12:04,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:04,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:04,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:12:04,783 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:12:04,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:12:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:05,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:12:05,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:05,502 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 08:12:05,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:12:05,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:12:05,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815536079] [2022-11-19 08:12:05,502 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:12:05,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000731674] [2022-11-19 08:12:05,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000731674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:05,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:12:05,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:12:05,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922199592] [2022-11-19 08:12:05,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:05,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:12:05,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:12:05,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:12:05,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:12:05,505 INFO L87 Difference]: Start difference. First operand 169 states and 203 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 08:12:06,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:06,453 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2022-11-19 08:12:06,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:12:06,454 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 08:12:06,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:06,456 INFO L225 Difference]: With dead ends: 395 [2022-11-19 08:12:06,456 INFO L226 Difference]: Without dead ends: 242 [2022-11-19 08:12:06,457 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 08:12:06,458 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 260 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:06,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 290 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 08:12:06,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-11-19 08:12:06,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2022-11-19 08:12:06,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 08:12:06,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2022-11-19 08:12:06,480 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2022-11-19 08:12:06,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:06,480 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2022-11-19 08:12:06,481 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 08:12:06,481 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2022-11-19 08:12:06,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-19 08:12:06,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:06,483 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 08:12:06,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:06,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:06,692 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:12:06,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:06,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1134780781, now seen corresponding path program 1 times [2022-11-19 08:12:06,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:12:06,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849585206] [2022-11-19 08:12:06,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:06,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:12:06,761 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:12:06,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [399897471] [2022-11-19 08:12:06,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:06,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:06,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:12:06,763 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:12:06,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:12:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:31,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:12:31,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:31,935 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:12:31,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:12:31,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:12:31,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849585206] [2022-11-19 08:12:31,937 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:12:31,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399897471] [2022-11-19 08:12:31,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399897471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:31,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:12:31,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:12:31,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660957735] [2022-11-19 08:12:31,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:31,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:12:31,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:12:31,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:12:31,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:12:31,941 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:12:34,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:12:36,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:12:36,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:36,847 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2022-11-19 08:12:36,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:12:36,857 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2022-11-19 08:12:36,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:36,859 INFO L225 Difference]: With dead ends: 411 [2022-11-19 08:12:36,859 INFO L226 Difference]: Without dead ends: 216 [2022-11-19 08:12:36,859 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 08:12:36,860 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 1 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:36,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 392 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-19 08:12:36,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-19 08:12:36,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-11-19 08:12:36,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-11-19 08:12:36,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2022-11-19 08:12:36,881 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2022-11-19 08:12:36,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:36,881 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2022-11-19 08:12:36,882 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:12:36,882 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2022-11-19 08:12:36,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-19 08:12:36,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:36,884 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 08:12:36,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-19 08:12:37,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:37,099 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:12:37,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:37,100 INFO L85 PathProgramCache]: Analyzing trace with hash 14420741, now seen corresponding path program 1 times [2022-11-19 08:12:37,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:12:37,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095876099] [2022-11-19 08:12:37,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:37,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:12:37,168 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:12:37,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [499464929] [2022-11-19 08:12:37,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:37,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:37,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:12:37,170 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:12:37,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06094447-88cf-4567-adf5-d3af0d4933a8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 08:12:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:56,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 08:12:56,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:56,578 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 08:12:56,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:56,698 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 08:12:56,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:12:56,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095876099] [2022-11-19 08:12:56,698 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:12:56,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499464929] [2022-11-19 08:12:56,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499464929] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:56,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1694294952] [2022-11-19 08:12:56,719 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-19 08:12:56,720 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:12:56,723 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:12:56,728 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:12:56,729 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:12:56,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:56,884 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 08:12:56,896 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 08:12:56,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:56,919 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 08:12:56,919 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 08:12:56,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:56,951 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:12:56,952 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 08:12:56,964 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 08:12:56,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:56,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,025 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 08:12:57,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-19 08:12:57,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,046 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 08:12:57,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,093 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:12:57,093 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 08:12:57,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-11-19 08:12:57,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,140 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 08:12:57,555 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 08:12:57,581 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 08:12:57,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,649 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 08:12:57,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,713 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 08:12:57,783 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 08:12:57,798 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 08:12:57,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,864 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 08:12:57,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:57,931 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 08:12:58,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,050 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 08:12:58,094 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 08:12:58,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,164 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 08:12:58,164 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 08:12:58,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,256 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 08:12:58,257 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 08:12:58,290 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 08:12:58,501 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 08:12:58,505 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 08:12:58,511 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 08:12:58,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-19 08:12:58,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 08:12:58,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 08:12:58,576 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 08:12:58,581 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 08:12:58,587 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 08:12:58,675 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 08:12:58,698 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 08:12:58,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,742 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 08:12:58,926 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 08:12:58,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,975 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 08:12:58,999 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 08:12:59,956 INFO L217 Elim1Store]: Index analysis took 583 ms [2022-11-19 08:13:04,152 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-19 08:13:04,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519777 treesize of output 9519796 [2022-11-19 08:13:05,536 INFO L217 Elim1Store]: Index analysis took 1091 ms [2022-11-19 08:13:06,027 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-19 08:13:06,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9519772 treesize of output 9519776 [2022-11-19 08:13:14,017 WARN L233 SmtUtils]: Spent 7.84s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:13:14,018 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-19 08:13:14,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-11-19 08:13:14,597 INFO L217 Elim1Store]: Index analysis took 248 ms [2022-11-19 08:13:36,493 WARN L233 SmtUtils]: Spent 21.89s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:13:36,493 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-19 08:13:36,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1834 [2022-11-19 08:13:38,231 INFO L217 Elim1Store]: Index analysis took 899 ms [2022-11-19 08:14:15,711 WARN L233 SmtUtils]: Spent 36.68s on a formula simplification. DAG size of input: 261 DAG size of output: 159 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:14:15,712 INFO L321 Elim1Store]: treesize reduction 22290, result has 25.6 percent of original size [2022-11-19 08:14:15,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 5638 treesize of output 15985 [2022-11-19 08:14:17,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:14:17,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 69 [2022-11-19 08:14:17,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:17,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:17,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:14:17,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 55 [2022-11-19 08:14:19,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:19,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2022-11-19 08:14:19,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:19,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-19 08:14:20,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:20,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:20,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:20,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2022-11-19 08:14:22,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:22,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2022-11-19 08:14:22,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:22,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-19 08:14:26,668 INFO L217 Elim1Store]: Index analysis took 860 ms