./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.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_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/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_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/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_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/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 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 06:43:11,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:43:11,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:43:11,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:43:11,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:43:11,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:43:11,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:43:11,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:43:11,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:43:11,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:43:11,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:43:11,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:43:11,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:43:11,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:43:11,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:43:11,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:43:11,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:43:11,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:43:11,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:43:11,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:43:11,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:43:11,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:43:11,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:43:11,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:43:11,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:43:11,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:43:11,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:43:11,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:43:11,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:43:11,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:43:11,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:43:11,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:43:11,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:43:11,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:43:11,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:43:11,691 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:43:11,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:43:11,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:43:11,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:43:11,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:43:11,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:43:11,696 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 06:43:11,736 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:43:11,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:43:11,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:43:11,740 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:43:11,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:43:11,741 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:43:11,741 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:43:11,742 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:43:11,742 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:43:11,742 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:43:11,743 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:43:11,744 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:43:11,744 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:43:11,744 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:43:11,744 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:43:11,745 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:43:11,745 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:43:11,745 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:43:11,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:43:11,746 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:43:11,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:43:11,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:43:11,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:43:11,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:43:11,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:43:11,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:43:11,749 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:43:11,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:43:11,751 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:43:11,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:43:11,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:43:11,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:43:11,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:43:11,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:43:11,752 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:43:11,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:43:11,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:43:11,753 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:43:11,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:43:11,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:43:11,754 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:43:11,754 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_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 [2022-11-19 06:43:12,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:43:12,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:43:12,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:43:12,155 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:43:12,156 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:43:12,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2022-11-19 06:43:12,251 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/data/153a38f6e/1fa988dda7c24461b050fea4286e5a11/FLAG7d0dd4e7e [2022-11-19 06:43:13,095 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:43:13,097 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2022-11-19 06:43:13,115 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/data/153a38f6e/1fa988dda7c24461b050fea4286e5a11/FLAG7d0dd4e7e [2022-11-19 06:43:13,207 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/data/153a38f6e/1fa988dda7c24461b050fea4286e5a11 [2022-11-19 06:43:13,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:43:13,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:43:13,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:43:13,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:43:13,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:43:13,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:43:13" (1/1) ... [2022-11-19 06:43:13,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bff01cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:13, skipping insertion in model container [2022-11-19 06:43:13,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:43:13" (1/1) ... [2022-11-19 06:43:13,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:43:13,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:43:13,901 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_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[33021,33034] [2022-11-19 06:43:14,123 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_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[49681,49694] [2022-11-19 06:43:14,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:43:14,156 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:43:14,186 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_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[33021,33034] [2022-11-19 06:43:14,254 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_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i[49681,49694] [2022-11-19 06:43:14,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:43:14,304 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:43:14,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:14 WrapperNode [2022-11-19 06:43:14,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:43:14,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:43:14,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:43:14,312 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:43:14,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:14" (1/1) ... [2022-11-19 06:43:14,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:14" (1/1) ... [2022-11-19 06:43:14,569 INFO L138 Inliner]: procedures = 177, calls = 487, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1686 [2022-11-19 06:43:14,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:43:14,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:43:14,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:43:14,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:43:14,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:14" (1/1) ... [2022-11-19 06:43:14,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:14" (1/1) ... [2022-11-19 06:43:14,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:14" (1/1) ... [2022-11-19 06:43:14,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:14" (1/1) ... [2022-11-19 06:43:14,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:14" (1/1) ... [2022-11-19 06:43:14,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:14" (1/1) ... [2022-11-19 06:43:14,744 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:14" (1/1) ... [2022-11-19 06:43:14,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:14" (1/1) ... [2022-11-19 06:43:14,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:43:14,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:43:14,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:43:14,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:43:14,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:14" (1/1) ... [2022-11-19 06:43:14,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:43:14,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:43:14,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:43:14,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:43:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:43:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 06:43:14,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 06:43:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:43:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 06:43:14,889 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 06:43:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:43:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:43:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:43:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:43:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 06:43:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:43:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:43:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:43:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:43:14,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:43:15,287 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:43:15,290 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:43:17,792 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:43:18,469 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:43:18,469 INFO L300 CfgBuilder]: Removed 100 assume(true) statements. [2022-11-19 06:43:18,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:43:18 BoogieIcfgContainer [2022-11-19 06:43:18,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:43:18,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:43:18,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:43:18,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:43:18,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:43:13" (1/3) ... [2022-11-19 06:43:18,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8133d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:43:18, skipping insertion in model container [2022-11-19 06:43:18,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:14" (2/3) ... [2022-11-19 06:43:18,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8133d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:43:18, skipping insertion in model container [2022-11-19 06:43:18,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:43:18" (3/3) ... [2022-11-19 06:43:18,484 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test5-3.i [2022-11-19 06:43:18,505 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:43:18,506 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 06:43:18,569 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:43:18,577 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;@54a7e156, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:43:18,577 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 06:43:18,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 06:43:18,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 06:43:18,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:43:18,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 06:43:18,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:43:18,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:43:18,600 INFO L85 PathProgramCache]: Analyzing trace with hash 274883441, now seen corresponding path program 1 times [2022-11-19 06:43:18,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:43:18,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116709109] [2022-11-19 06:43:18,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:43:18,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:43:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:43:18,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:43:18,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116709109] [2022-11-19 06:43:18,774 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 06:43:18,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714283569] [2022-11-19 06:43:18,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:43:18,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:43:18,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:43:18,779 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:43:18,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:43:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:43:19,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 06:43:19,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:43:19,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:43:19,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:43:19,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714283569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:43:19,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:43:19,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:43:19,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612109985] [2022-11-19 06:43:19,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:43:19,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 06:43:19,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:43:19,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 06:43:19,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:43:19,214 INFO L87 Difference]: Start difference. First operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:43:20,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:43:20,452 INFO L93 Difference]: Finished difference Result 353 states and 632 transitions. [2022-11-19 06:43:20,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 06:43:20,460 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-19 06:43:20,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:43:20,471 INFO L225 Difference]: With dead ends: 353 [2022-11-19 06:43:20,471 INFO L226 Difference]: Without dead ends: 150 [2022-11-19 06:43:20,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:43:20,479 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:43:20,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-19 06:43:20,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-19 06:43:20,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-19 06:43:20,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 06:43:20,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-19 06:43:20,534 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-19 06:43:20,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:43:20,535 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-19 06:43:20,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:43:20,535 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-19 06:43:20,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 06:43:20,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:43:20,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:43:20,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 06:43:20,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 06:43:20,745 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:43:20,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:43:20,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1671934868, now seen corresponding path program 1 times [2022-11-19 06:43:20,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:43:20,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281430111] [2022-11-19 06:43:20,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:43:20,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:43:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:43:20,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:43:20,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281430111] [2022-11-19 06:43:20,817 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 06:43:20,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994505814] [2022-11-19 06:43:20,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:43:20,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:43:20,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:43:20,826 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:43:20,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:43:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:43:21,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 06:43:21,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:43:21,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:43:21,296 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:43:21,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994505814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:43:21,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:43:21,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:43:21,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798350440] [2022-11-19 06:43:21,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:43:21,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:43:21,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:43:21,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:43:21,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:43:21,301 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:43:23,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:43:23,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:43:23,665 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-19 06:43:23,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:43:23,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-19 06:43:23,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:43:23,675 INFO L225 Difference]: With dead ends: 342 [2022-11-19 06:43:23,676 INFO L226 Difference]: Without dead ends: 290 [2022-11-19 06:43:23,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:43:23,677 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:43:23,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-19 06:43:23,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-19 06:43:23,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-19 06:43:23,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 06:43:23,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-19 06:43:23,699 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-19 06:43:23,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:43:23,699 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-19 06:43:23,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:43:23,700 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-19 06:43:23,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-19 06:43:23,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:43:23,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:43:23,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:43:23,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:43:23,909 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:43:23,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:43:23,909 INFO L85 PathProgramCache]: Analyzing trace with hash 700872651, now seen corresponding path program 1 times [2022-11-19 06:43:23,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:43:23,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085864273] [2022-11-19 06:43:23,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:43:23,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:43:24,200 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:43:24,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530409297] [2022-11-19 06:43:24,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:43:24,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:43:24,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:43:24,203 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:43:24,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 06:43:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:43:25,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:43:25,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:43:25,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:43:25,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:43:26,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:43:26,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:43:26,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085864273] [2022-11-19 06:43:26,095 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:43:26,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530409297] [2022-11-19 06:43:26,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530409297] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:43:26,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1638292317] [2022-11-19 06:43:26,118 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-19 06:43:26,118 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:43:26,122 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:43:26,128 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:43:26,129 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:43:26,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:26,422 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 06:43:26,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-19 06:43:26,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:26,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 06:43:26,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:26,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:43:26,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:26,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:43:26,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:26,588 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 06:43:26,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-19 06:43:26,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:26,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:26,650 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:43:26,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 06:43:26,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:26,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:43:26,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:26,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:26,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-19 06:43:27,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 06:43:27,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 06:43:27,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 06:43:27,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 06:43:27,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 06:43:27,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 06:43:27,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:27,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:28,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 06:43:28,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:28,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:28,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:28,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:28,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:28,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:28,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:28,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:28,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:28,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:28,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:28,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:28,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:28,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 06:43:28,118 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:43:35,364 WARN L233 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:43:43,602 WARN L233 SmtUtils]: Spent 6.11s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:43:43,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1638292317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:43:43,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 06:43:43,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-19 06:43:43,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654015472] [2022-11-19 06:43:43,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:43:43,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 06:43:43,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:43:43,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 06:43:43,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-19 06:43:43,612 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:43:49,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:43:49,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:43:49,665 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2022-11-19 06:43:49,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 06:43:49,665 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-19 06:43:49,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:43:49,667 INFO L225 Difference]: With dead ends: 310 [2022-11-19 06:43:49,667 INFO L226 Difference]: Without dead ends: 161 [2022-11-19 06:43:49,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-19 06:43:49,673 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 7 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 81 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:43:49,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 586 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 1 Unknown, 81 Unchecked, 6.0s Time] [2022-11-19 06:43:49,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-19 06:43:49,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-19 06:43:49,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 06:43:49,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-19 06:43:49,730 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-19 06:43:49,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:43:49,731 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-19 06:43:49,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:43:49,732 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-19 06:43:49,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 06:43:49,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:43:49,738 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:43:49,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 06:43:49,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:43:49,953 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:43:49,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:43:49,954 INFO L85 PathProgramCache]: Analyzing trace with hash -385397690, now seen corresponding path program 1 times [2022-11-19 06:43:49,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:43:49,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581932200] [2022-11-19 06:43:49,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:43:49,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:43:50,207 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:43:50,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1346950373] [2022-11-19 06:43:50,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:43:50,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:43:50,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:43:50,212 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:43:50,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 06:43:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:43:51,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:43:51,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:43:51,785 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 06:43:51,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:43:51,922 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 06:43:51,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:43:51,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581932200] [2022-11-19 06:43:51,923 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:43:51,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346950373] [2022-11-19 06:43:51,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346950373] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:43:51,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1228581708] [2022-11-19 06:43:51,931 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-19 06:43:51,931 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:43:51,932 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:43:51,932 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:43:51,933 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:43:52,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,073 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 06:43:52,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-19 06:43:52,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 06:43:52,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,152 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 06:43:52,153 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 06:43:52,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:43:52,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,230 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:43:52,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 06:43:52,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:43:52,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-19 06:43:52,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:43:52,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 06:43:52,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 06:43:52,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 06:43:52,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-19 06:43:52,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 06:43:52,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 06:43:52,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:52,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 06:43:53,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 06:43:53,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 06:43:53,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 06:43:53,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 06:43:53,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,308 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 06:43:53,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-19 06:43:53,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:53,407 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 06:43:53,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-19 06:43:54,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 06:43:54,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 06:43:54,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 06:43:54,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-19 06:43:54,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376293 [2022-11-19 06:43:54,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376293 [2022-11-19 06:43:54,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 06:43:54,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 06:43:54,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 06:43:54,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 06:43:54,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 06:43:54,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,732 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 06:43:54,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-19 06:43:54,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:43:54,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-11-19 06:43:55,202 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-19 06:43:55,345 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:44:03,770 WARN L233 SmtUtils]: Spent 5.29s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:44:11,450 WARN L233 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:44:23,637 WARN L233 SmtUtils]: Spent 8.07s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:44:37,481 WARN L233 SmtUtils]: Spent 7.70s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:44:51,523 WARN L233 SmtUtils]: Spent 7.82s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:44:52,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1228581708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:44:52,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 06:44:52,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-19 06:44:52,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341300815] [2022-11-19 06:44:52,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:44:52,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 06:44:52,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:44:52,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 06:44:52,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 06:44:52,256 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 06:44:56,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:44:57,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:45:00,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:45:00,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:45:00,188 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-19 06:45:00,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 06:45:00,189 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-11-19 06:45:00,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:45:00,190 INFO L225 Difference]: With dead ends: 315 [2022-11-19 06:45:00,191 INFO L226 Difference]: Without dead ends: 166 [2022-11-19 06:45:00,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 56.9s TimeCoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 06:45:00,192 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 8 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 193 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:45:00,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 616 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 2 Unknown, 193 Unchecked, 7.9s Time] [2022-11-19 06:45:00,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-19 06:45:00,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-19 06:45:00,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-19 06:45:00,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-19 06:45:00,225 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-19 06:45:00,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:45:00,225 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-19 06:45:00,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 06:45:00,226 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-19 06:45:00,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-19 06:45:00,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:45:00,228 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:45:00,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 06:45:00,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:45:00,435 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:45:00,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:45:00,436 INFO L85 PathProgramCache]: Analyzing trace with hash -102741374, now seen corresponding path program 1 times [2022-11-19 06:45:00,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:45:00,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528010939] [2022-11-19 06:45:00,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:45:00,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:45:00,621 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:45:00,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1705651496] [2022-11-19 06:45:00,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:45:00,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:45:00,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:45:00,623 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:45:00,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6983be3f-bfb5-4bb3-8a40-f1bf1f135f00/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 06:45:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:45:02,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:45:02,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:45:02,151 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 06:45:02,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:45:02,287 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 06:45:02,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:45:02,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528010939] [2022-11-19 06:45:02,287 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:45:02,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705651496] [2022-11-19 06:45:02,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705651496] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:45:02,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1228829318] [2022-11-19 06:45:02,292 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-19 06:45:02,292 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:45:02,292 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:45:02,293 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:45:02,293 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:45:02,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:02,418 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 06:45:02,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-19 06:45:02,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:02,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 06:45:02,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:02,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:45:02,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:02,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:02,515 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 06:45:02,516 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 06:45:02,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:02,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:02,578 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:45:02,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 06:45:02,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:02,599 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:45:02,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-19 06:45:02,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:02,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:45:03,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 06:45:03,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 06:45:03,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 06:45:03,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 06:45:03,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 06:45:03,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 06:45:03,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 06:45:03,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 06:45:03,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 06:45:03,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,498 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 06:45:03,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-19 06:45:03,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,639 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 06:45:03,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-19 06:45:03,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:03,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 06:45:03,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 06:45:03,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 06:45:03,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 06:45:03,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 06:45:03,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 06:45:03,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-19 06:45:03,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 06:45:04,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 06:45:04,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 06:45:04,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 06:45:04,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-19 06:45:04,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 06:45:04,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 06:45:04,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:45:04,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-19 06:45:04,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 06:45:04,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 06:45:09,595 INFO L217 Elim1Store]: Index analysis took 4316 ms [2022-11-19 06:45:17,721 WARN L233 SmtUtils]: Spent 8.12s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 06:45:17,722 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-19 06:45:17,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-11-19 06:45:20,117 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |ULTIMATE.start_main_~#j~0#1.base| 1) [2022-11-19 06:45:21,564 INFO L217 Elim1Store]: Index analysis took 3700 ms [2022-11-19 06:45:23,386 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-19 06:45:23,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-11-19 06:48:35,923 WARN L233 SmtUtils]: Spent 3.21m on a formula simplification. DAG size of input: 198 DAG size of output: 104 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 06:48:35,925 INFO L321 Elim1Store]: treesize reduction 1636, result has 23.4 percent of original size [2022-11-19 06:48:35,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 7904 treesize of output 5832 [2022-11-19 06:48:36,412 INFO L217 Elim1Store]: Index analysis took 121 ms [2022-11-19 06:50:18,198 WARN L233 SmtUtils]: Spent 1.70m 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 06:50:18,199 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-19 06:50:18,200 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 7135 treesize of output 5975 [2022-11-19 06:50:23,413 INFO L217 Elim1Store]: Index analysis took 3034 ms