./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh --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 ce6a3162e09155ad765d255c42023f1cbec9d995c66c63f43c14fadd8640484e --- 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-2329fc7 [2022-12-14 11:18:14,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:18:14,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:18:14,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:18:14,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:18:14,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:18:14,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:18:14,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:18:14,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:18:14,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:18:14,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:18:14,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:18:14,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:18:14,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:18:14,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:18:14,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:18:14,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:18:14,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:18:14,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:18:14,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:18:14,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:18:14,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:18:14,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:18:14,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:18:14,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:18:14,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:18:14,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:18:14,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:18:14,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:18:14,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:18:14,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:18:14,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:18:14,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:18:14,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:18:14,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:18:14,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:18:14,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:18:14,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:18:14,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:18:14,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:18:14,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:18:14,744 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:18:14,766 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:18:14,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:18:14,766 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:18:14,766 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:18:14,767 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:18:14,767 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:18:14,767 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:18:14,768 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:18:14,768 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:18:14,768 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:18:14,768 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:18:14,768 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:18:14,768 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:18:14,769 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:18:14,769 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:18:14,769 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:18:14,769 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:18:14,769 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:18:14,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:18:14,770 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:18:14,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:18:14,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:18:14,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:18:14,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:18:14,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:18:14,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:18:14,772 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:18:14,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:18:14,772 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:18:14,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:18:14,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:18:14,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:18:14,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:18:14,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:18:14,773 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:18:14,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:18:14,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:18:14,774 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:18:14,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:18:14,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:18:14,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:18:14,774 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_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce6a3162e09155ad765d255c42023f1cbec9d995c66c63f43c14fadd8640484e [2022-12-14 11:18:14,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:18:14,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:18:14,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:18:14,963 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:18:14,963 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:18:14,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.i [2022-12-14 11:18:17,531 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:18:17,758 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:18:17,759 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.i [2022-12-14 11:18:17,769 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/data/aab148162/aef145af11004115bd30a875ed4423a2/FLAGcb8f7d650 [2022-12-14 11:18:18,124 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/data/aab148162/aef145af11004115bd30a875ed4423a2 [2022-12-14 11:18:18,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:18:18,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:18:18,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:18:18,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:18:18,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:18:18,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:18:18" (1/1) ... [2022-12-14 11:18:18,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea67244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:18:18, skipping insertion in model container [2022-12-14 11:18:18,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:18:18" (1/1) ... [2022-12-14 11:18:18,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:18:18,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:18:18,480 WARN L237 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_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.i[33022,33035] [2022-12-14 11:18:18,565 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 11:18:18,576 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 11:18:18,587 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 11:18:18,597 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 11:18:18,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:18:18,613 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:18:18,635 WARN L237 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_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.i[33022,33035] [2022-12-14 11:18:18,673 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 11:18:18,680 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 11:18:18,687 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 11:18:18,694 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 11:18:18,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:18:18,720 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:18:18,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:18:18 WrapperNode [2022-12-14 11:18:18,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:18:18,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:18:18,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:18:18,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:18:18,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:18:18" (1/1) ... [2022-12-14 11:18:18,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:18:18" (1/1) ... [2022-12-14 11:18:18,840 INFO L138 Inliner]: procedures = 177, calls = 524, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2167 [2022-12-14 11:18:18,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:18:18,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:18:18,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:18:18,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:18:18,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:18:18" (1/1) ... [2022-12-14 11:18:18,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:18:18" (1/1) ... [2022-12-14 11:18:18,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:18:18" (1/1) ... [2022-12-14 11:18:18,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:18:18" (1/1) ... [2022-12-14 11:18:18,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:18:18" (1/1) ... [2022-12-14 11:18:18,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:18:18" (1/1) ... [2022-12-14 11:18:18,929 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:18:18" (1/1) ... [2022-12-14 11:18:18,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:18:18" (1/1) ... [2022-12-14 11:18:18,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:18:18,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:18:18,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:18:18,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:18:18,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:18:18" (1/1) ... [2022-12-14 11:18:18,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:18:18,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:18:18,968 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:18:18,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:18:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2022-12-14 11:18:19,002 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2022-12-14 11:18:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:18:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 11:18:19,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 11:18:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:18:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 11:18:19,002 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 11:18:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 11:18:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:18:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 11:18:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:18:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 11:18:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 11:18:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:18:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:18:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:18:19,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:18:19,203 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:18:19,204 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:18:20,917 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:18:21,493 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:18:21,493 INFO L300 CfgBuilder]: Removed 151 assume(true) statements. [2022-12-14 11:18:21,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:18:21 BoogieIcfgContainer [2022-12-14 11:18:21,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:18:21,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:18:21,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:18:21,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:18:21,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:18:18" (1/3) ... [2022-12-14 11:18:21,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6983eb9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:18:21, skipping insertion in model container [2022-12-14 11:18:21,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:18:18" (2/3) ... [2022-12-14 11:18:21,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6983eb9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:18:21, skipping insertion in model container [2022-12-14 11:18:21,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:18:21" (3/3) ... [2022-12-14 11:18:21,505 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test10-1.i [2022-12-14 11:18:21,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:18:21,525 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:18:21,574 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:18:21,580 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;@18e45e8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:18:21,580 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:18:21,584 INFO L276 IsEmpty]: Start isEmpty. Operand has 251 states, 232 states have (on average 1.8275862068965518) internal successors, (424), 237 states have internal predecessors, (424), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 11:18:21,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 11:18:21,590 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:18:21,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:18:21,591 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:18:21,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:18:21,594 INFO L85 PathProgramCache]: Analyzing trace with hash 186147916, now seen corresponding path program 1 times [2022-12-14 11:18:21,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:18:21,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956803220] [2022-12-14 11:18:21,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:18:21,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:18:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:18:21,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:18:21,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:18:21,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956803220] [2022-12-14 11:18:21,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956803220] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:18:21,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:18:21,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:18:21,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176440796] [2022-12-14 11:18:21,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:18:21,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:18:21,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:18:21,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:18:21,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:18:21,773 INFO L87 Difference]: Start difference. First operand has 251 states, 232 states have (on average 1.8275862068965518) internal successors, (424), 237 states have internal predecessors, (424), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:18:23,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 11:18:23,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:18:23,255 INFO L93 Difference]: Finished difference Result 501 states and 911 transitions. [2022-12-14 11:18:23,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:18:23,257 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-14 11:18:23,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:18:23,268 INFO L225 Difference]: With dead ends: 501 [2022-12-14 11:18:23,268 INFO L226 Difference]: Without dead ends: 249 [2022-12-14 11:18:23,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:18:23,275 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:18:23,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 279 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 11:18:23,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-12-14 11:18:23,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2022-12-14 11:18:23,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 231 states have (on average 1.199134199134199) internal successors, (277), 236 states have internal predecessors, (277), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 11:18:23,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 304 transitions. [2022-12-14 11:18:23,326 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 304 transitions. Word has length 12 [2022-12-14 11:18:23,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:18:23,326 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 304 transitions. [2022-12-14 11:18:23,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:18:23,326 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 304 transitions. [2022-12-14 11:18:23,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 11:18:23,327 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:18:23,328 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] [2022-12-14 11:18:23,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:18:23,328 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:18:23,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:18:23,328 INFO L85 PathProgramCache]: Analyzing trace with hash -411884708, now seen corresponding path program 1 times [2022-12-14 11:18:23,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:18:23,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307025722] [2022-12-14 11:18:23,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:18:23,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:18:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:18:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:18:23,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:18:23,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307025722] [2022-12-14 11:18:23,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307025722] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:18:23,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:18:23,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:18:23,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347592831] [2022-12-14 11:18:23,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:18:23,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:18:23,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:18:23,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:18:23,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:18:23,558 INFO L87 Difference]: Start difference. First operand 249 states and 304 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:18:27,034 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 [] [2022-12-14 11:18:29,376 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 [] [2022-12-14 11:18:29,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:18:29,991 INFO L93 Difference]: Finished difference Result 425 states and 521 transitions. [2022-12-14 11:18:29,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:18:29,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 11:18:29,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:18:29,993 INFO L225 Difference]: With dead ends: 425 [2022-12-14 11:18:29,993 INFO L226 Difference]: Without dead ends: 276 [2022-12-14 11:18:29,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:18:29,994 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 27 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:18:29,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 766 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-12-14 11:18:29,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-12-14 11:18:30,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 251. [2022-12-14 11:18:30,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 233 states have (on average 1.1974248927038627) internal successors, (279), 238 states have internal predecessors, (279), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 11:18:30,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 306 transitions. [2022-12-14 11:18:30,004 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 306 transitions. Word has length 24 [2022-12-14 11:18:30,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:18:30,004 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 306 transitions. [2022-12-14 11:18:30,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:18:30,005 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 306 transitions. [2022-12-14 11:18:30,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-14 11:18:30,006 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:18:30,006 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:18:30,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:18:30,006 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:18:30,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:18:30,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1069160593, now seen corresponding path program 1 times [2022-12-14 11:18:30,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:18:30,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835580612] [2022-12-14 11:18:30,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:18:30,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:18:30,130 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:18:30,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1467585697] [2022-12-14 11:18:30,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:18:30,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:18:30,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:18:30,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:18:30,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:18:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:18:30,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 1687 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 11:18:30,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:18:30,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:18:30,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:18:30,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:18:30,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835580612] [2022-12-14 11:18:30,809 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:18:30,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467585697] [2022-12-14 11:18:30,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467585697] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:18:30,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:18:30,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:18:30,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645863049] [2022-12-14 11:18:30,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:18:30,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:18:30,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:18:30,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:18:30,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:18:30,811 INFO L87 Difference]: Start difference. First operand 251 states and 306 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:18:33,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:18:33,142 INFO L93 Difference]: Finished difference Result 614 states and 746 transitions. [2022-12-14 11:18:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:18:33,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-12-14 11:18:33,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:18:33,143 INFO L225 Difference]: With dead ends: 614 [2022-12-14 11:18:33,143 INFO L226 Difference]: Without dead ends: 366 [2022-12-14 11:18:33,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:18:33,145 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 119 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:18:33,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 547 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 11:18:33,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-12-14 11:18:33,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 362. [2022-12-14 11:18:33,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.1799410029498525) internal successors, (400), 344 states have internal predecessors, (400), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-12-14 11:18:33,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 437 transitions. [2022-12-14 11:18:33,158 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 437 transitions. Word has length 49 [2022-12-14 11:18:33,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:18:33,159 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 437 transitions. [2022-12-14 11:18:33,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:18:33,159 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 437 transitions. [2022-12-14 11:18:33,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 11:18:33,160 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:18:33,160 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:18:33,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:18:33,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:18:33,363 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:18:33,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:18:33,364 INFO L85 PathProgramCache]: Analyzing trace with hash -2087688826, now seen corresponding path program 1 times [2022-12-14 11:18:33,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:18:33,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434431445] [2022-12-14 11:18:33,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:18:33,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:18:33,455 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:18:33,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [778185692] [2022-12-14 11:18:33,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:18:33,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:18:33,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:18:33,456 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:18:33,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:18:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:18:33,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 11:18:33,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:18:33,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 11:18:34,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:18:34,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 11:18:34,028 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 11:18:34,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:18:34,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:18:34,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434431445] [2022-12-14 11:18:34,029 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:18:34,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778185692] [2022-12-14 11:18:34,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778185692] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:18:34,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:18:34,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:18:34,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205593188] [2022-12-14 11:18:34,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:18:34,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:18:34,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:18:34,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:18:34,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:18:34,032 INFO L87 Difference]: Start difference. First operand 362 states and 437 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 11:18:37,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:18:37,477 INFO L93 Difference]: Finished difference Result 674 states and 815 transitions. [2022-12-14 11:18:37,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:18:37,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 62 [2022-12-14 11:18:37,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:18:37,479 INFO L225 Difference]: With dead ends: 674 [2022-12-14 11:18:37,479 INFO L226 Difference]: Without dead ends: 362 [2022-12-14 11:18:37,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:18:37,480 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 13 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:18:37,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 768 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 11:18:37,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-12-14 11:18:37,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2022-12-14 11:18:37,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.176991150442478) internal successors, (399), 344 states have internal predecessors, (399), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-12-14 11:18:37,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 436 transitions. [2022-12-14 11:18:37,492 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 436 transitions. Word has length 62 [2022-12-14 11:18:37,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:18:37,493 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 436 transitions. [2022-12-14 11:18:37,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 11:18:37,493 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 436 transitions. [2022-12-14 11:18:37,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 11:18:37,494 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:18:37,495 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:18:37,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 11:18:37,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:18:37,696 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:18:37,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:18:37,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1562940522, now seen corresponding path program 1 times [2022-12-14 11:18:37,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:18:37,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883668713] [2022-12-14 11:18:37,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:18:37,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:18:37,813 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:18:37,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1492864483] [2022-12-14 11:18:37,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:18:37,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:18:37,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:18:37,815 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:18:37,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:18:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:18:38,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 2300 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 11:18:38,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:18:38,661 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 11:18:38,661 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:18:38,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:18:38,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883668713] [2022-12-14 11:18:38,661 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:18:38,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492864483] [2022-12-14 11:18:38,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492864483] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:18:38,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:18:38,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:18:38,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164849610] [2022-12-14 11:18:38,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:18:38,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:18:38,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:18:38,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:18:38,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:18:38,663 INFO L87 Difference]: Start difference. First operand 362 states and 436 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 11:18:40,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:18:40,785 INFO L93 Difference]: Finished difference Result 820 states and 988 transitions. [2022-12-14 11:18:40,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:18:40,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2022-12-14 11:18:40,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:18:40,787 INFO L225 Difference]: With dead ends: 820 [2022-12-14 11:18:40,787 INFO L226 Difference]: Without dead ends: 484 [2022-12-14 11:18:40,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:18:40,788 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 110 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:18:40,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 531 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 11:18:40,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-12-14 11:18:40,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 429. [2022-12-14 11:18:40,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 403 states have (on average 1.1687344913151365) internal successors, (471), 408 states have internal predecessors, (471), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2022-12-14 11:18:40,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 514 transitions. [2022-12-14 11:18:40,806 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 514 transitions. Word has length 83 [2022-12-14 11:18:40,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:18:40,807 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 514 transitions. [2022-12-14 11:18:40,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 11:18:40,807 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 514 transitions. [2022-12-14 11:18:40,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-14 11:18:40,809 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:18:40,810 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:18:40,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 11:18:41,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:18:41,011 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:18:41,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:18:41,013 INFO L85 PathProgramCache]: Analyzing trace with hash -2006888177, now seen corresponding path program 1 times [2022-12-14 11:18:41,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:18:41,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409973687] [2022-12-14 11:18:41,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:18:41,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:18:41,157 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:18:41,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [965908197] [2022-12-14 11:18:41,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:18:41,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:18:41,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:18:41,158 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:18:41,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:18:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:18:41,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 1437 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 11:18:41,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:18:41,764 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:18:41,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:18:41,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:18:41,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409973687] [2022-12-14 11:18:41,765 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:18:41,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965908197] [2022-12-14 11:18:41,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965908197] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:18:41,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:18:41,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:18:41,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807478552] [2022-12-14 11:18:41,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:18:41,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:18:41,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:18:41,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:18:41,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:18:41,767 INFO L87 Difference]: Start difference. First operand 429 states and 514 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 11:18:42,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:18:42,922 INFO L93 Difference]: Finished difference Result 719 states and 867 transitions. [2022-12-14 11:18:42,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:18:42,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 96 [2022-12-14 11:18:42,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:18:42,925 INFO L225 Difference]: With dead ends: 719 [2022-12-14 11:18:42,925 INFO L226 Difference]: Without dead ends: 351 [2022-12-14 11:18:42,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:18:42,926 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 438 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:18:42,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 329 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 11:18:42,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-12-14 11:18:42,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2022-12-14 11:18:42,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 330 states have (on average 1.1666666666666667) internal successors, (385), 335 states have internal predecessors, (385), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 11:18:42,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 418 transitions. [2022-12-14 11:18:42,938 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 418 transitions. Word has length 96 [2022-12-14 11:18:42,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:18:42,938 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 418 transitions. [2022-12-14 11:18:42,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 11:18:42,938 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 418 transitions. [2022-12-14 11:18:42,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-14 11:18:42,940 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:18:42,940 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:18:42,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 11:18:43,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 11:18:43,141 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:18:43,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:18:43,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1640234627, now seen corresponding path program 1 times [2022-12-14 11:18:43,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:18:43,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330086405] [2022-12-14 11:18:43,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:18:43,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:18:43,217 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:18:43,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954963908] [2022-12-14 11:18:43,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:18:43,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:18:43,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:18:43,218 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:18:43,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 11:19:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:35,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 11:19:35,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:35,870 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 11:19:35,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:35,870 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:19:35,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330086405] [2022-12-14 11:19:35,870 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:19:35,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954963908] [2022-12-14 11:19:35,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954963908] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:35,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:19:35,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:19:35,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993552638] [2022-12-14 11:19:35,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:35,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:19:35,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:19:35,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:19:35,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:19:35,872 INFO L87 Difference]: Start difference. First operand 351 states and 418 transitions. Second operand has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 11:19:38,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:38,555 INFO L93 Difference]: Finished difference Result 684 states and 823 transitions. [2022-12-14 11:19:38,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:19:38,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 103 [2022-12-14 11:19:38,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:38,556 INFO L225 Difference]: With dead ends: 684 [2022-12-14 11:19:38,556 INFO L226 Difference]: Without dead ends: 353 [2022-12-14 11:19:38,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:19:38,557 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 1 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:38,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 812 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 11:19:38,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-12-14 11:19:38,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2022-12-14 11:19:38,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 331 states have (on average 1.1691842900302114) internal successors, (387), 337 states have internal predecessors, (387), 17 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (19), 13 states have call predecessors, (19), 16 states have call successors, (19) [2022-12-14 11:19:38,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 423 transitions. [2022-12-14 11:19:38,568 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 423 transitions. Word has length 103 [2022-12-14 11:19:38,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:38,568 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 423 transitions. [2022-12-14 11:19:38,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 11:19:38,568 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 423 transitions. [2022-12-14 11:19:38,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-12-14 11:19:38,569 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:38,569 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:38,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 11:19:38,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:38,770 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:19:38,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:38,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1510272397, now seen corresponding path program 1 times [2022-12-14 11:19:38,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:19:38,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750051498] [2022-12-14 11:19:38,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:38,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:19:38,841 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:19:38,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1428404509] [2022-12-14 11:19:38,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:38,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:38,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:19:38,843 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:19:38,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe8817-9ee3-43e7-b45e-72fa0c1c1c17/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 11:22:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:22:27,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 1523 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 11:22:27,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:22:27,959 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 11:22:27,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:22:28,025 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:22:28,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:22:28,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750051498] [2022-12-14 11:22:28,026 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:22:28,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428404509] [2022-12-14 11:22:28,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428404509] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:22:28,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1134825347] [2022-12-14 11:22:28,041 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2022-12-14 11:22:28,042 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:22:28,044 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:22:28,048 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:22:28,048 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:22:28,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 11:22:28,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 11:22:28,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 11:22:28,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,269 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 11:22:28,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 11:22:28,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,291 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 11:22:28,291 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 [2022-12-14 11:22:28,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,320 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 [2022-12-14 11:22:28,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,348 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 11:22:28,349 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 [2022-12-14 11:22:28,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,383 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 11:22:28,384 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 [2022-12-14 11:22:28,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 11:22:28,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,421 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 [2022-12-14 11:22:28,766 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 [2022-12-14 11:22:28,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897016 treesize of output 5376291 [2022-12-14 11:22:28,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897007 treesize of output 5376300 [2022-12-14 11:22:28,883 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 [2022-12-14 11:22:28,908 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 [2022-12-14 11:22:28,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 9897022 treesize of output 5376303 [2022-12-14 11:22:28,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:28,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 11:22:29,029 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 [2022-12-14 11:22:29,071 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 [2022-12-14 11:22:29,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 11:22:29,136 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 [2022-12-14 11:22:29,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,191 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 11:22:29,191 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 [2022-12-14 11:22:29,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,252 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 11:22:29,252 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 [2022-12-14 11:22:29,406 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 [2022-12-14 11:22:29,410 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 [2022-12-14 11:22:29,415 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 [2022-12-14 11:22:29,439 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 [2022-12-14 11:22:29,447 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 [2022-12-14 11:22:29,454 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 [2022-12-14 11:22:29,473 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 [2022-12-14 11:22:29,478 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 [2022-12-14 11:22:29,483 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 [2022-12-14 11:22:29,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-12-14 11:22:29,583 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 [2022-12-14 11:22:29,601 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 [2022-12-14 11:22:29,784 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 [2022-12-14 11:22:29,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:29,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-12-14 11:22:29,830 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 [2022-12-14 11:22:30,839 INFO L217 Elim1Store]: Index analysis took 771 ms [2022-12-14 11:22:36,522 WARN L233 SmtUtils]: Spent 5.68s 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) [2022-12-14 11:22:36,523 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 11:22:36,523 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 9519789 treesize of output 9519808 [2022-12-14 11:22:37,340 INFO L217 Elim1Store]: Index analysis took 657 ms [2022-12-14 11:22:37,920 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 11:22:37,921 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 9519784 treesize of output 9519788 [2022-12-14 11:22:46,126 WARN L233 SmtUtils]: Spent 8.12s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 11:22:46,126 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-12-14 11:22:46,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-12-14 11:23:06,356 WARN L233 SmtUtils]: Spent 19.93s 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) [2022-12-14 11:23:06,356 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 11:23:06,357 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 4133 treesize of output 3952 [2022-12-14 11:23:07,379 INFO L217 Elim1Store]: Index analysis took 646 ms [2022-12-14 11:23:35,777 WARN L233 SmtUtils]: Spent 27.86s on a formula simplification. DAG size of input: 261 DAG size of output: 159 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 11:23:35,777 INFO L321 Elim1Store]: treesize reduction 22290, result has 25.6 percent of original size [2022-12-14 11:23:35,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 5638 treesize of output 15985 [2022-12-14 11:23:36,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:36,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 69 [2022-12-14 11:23:36,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:36,696 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:36,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 55 [2022-12-14 11:23:36,924 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:36,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:37,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:37,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 245 [2022-12-14 11:23:37,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:37,410 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:37,410 INFO L217 Elim1Store]: Index analysis took 243 ms [2022-12-14 11:23:37,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 50 [2022-12-14 11:23:37,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:37,623 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:37,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2022-12-14 11:23:37,674 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 11:23:38,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:38,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2022-12-14 11:23:38,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:38,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 11:23:38,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:38,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2022-12-14 11:23:38,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:38,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 11:23:39,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:39,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:39,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2022-12-14 11:23:40,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:40,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:40,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2022-12-14 11:23:44,520 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 11:23:44,536 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 11:23:47,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:47,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2022-12-14 11:23:47,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:47,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-12-14 11:23:47,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:47,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-12-14 11:25:16,054 WARN L233 SmtUtils]: Spent 5.29s on a formula simplification that was a NOOP. DAG size: 17617 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)