./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V --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 64bit --witnessprinter.graph.data.programhash 27a3a7bacd5bfaa71ec936fdb60b09adb3a573df62752fe262468d392ed108c3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:12:51,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:12:51,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:12:51,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:12:51,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:12:51,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:12:51,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:12:51,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:12:51,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:12:51,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:12:51,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:12:51,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:12:51,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:12:51,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:12:51,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:12:51,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:12:51,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:12:51,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:12:51,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:12:51,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:12:51,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:12:51,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:12:51,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:12:51,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:12:51,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:12:51,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:12:51,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:12:51,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:12:51,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:12:51,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:12:51,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:12:51,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:12:51,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:12:51,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:12:51,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:12:51,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:12:51,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:12:51,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:12:51,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:12:51,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:12:51,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:12:51,748 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:12:51,802 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:12:51,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:12:51,803 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:12:51,804 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:12:51,805 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:12:51,806 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:12:51,806 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:12:51,806 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:12:51,807 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:12:51,807 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:12:51,808 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:12:51,809 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:12:51,809 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:12:51,809 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:12:51,810 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:12:51,810 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:12:51,810 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:12:51,811 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:12:51,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:12:51,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:12:51,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:12:51,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:12:51,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:12:51,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:12:51,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:12:51,814 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:12:51,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:12:51,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:12:51,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:12:51,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:12:51,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:12:51,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:12:51,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:12:51,818 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:12:51,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:12:51,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:12:51,819 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:12:51,819 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:12:51,820 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27a3a7bacd5bfaa71ec936fdb60b09adb3a573df62752fe262468d392ed108c3 [2021-11-23 02:12:52,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:12:52,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:12:52,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:12:52,174 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:12:52,175 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:12:52,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2021-11-23 02:12:52,247 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/data/ccf9018d5/d674c040905f4e6aa80e3227da940d1a/FLAG34f132e7a [2021-11-23 02:12:53,258 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:12:53,259 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2021-11-23 02:12:53,309 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/data/ccf9018d5/d674c040905f4e6aa80e3227da940d1a/FLAG34f132e7a [2021-11-23 02:12:53,627 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/data/ccf9018d5/d674c040905f4e6aa80e3227da940d1a [2021-11-23 02:12:53,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:12:53,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:12:53,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:12:53,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:12:53,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:12:53,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:12:53" (1/1) ... [2021-11-23 02:12:53,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce5a034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:53, skipping insertion in model container [2021-11-23 02:12:53,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:12:53" (1/1) ... [2021-11-23 02:12:53,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:12:53,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:12:56,658 WARN L230 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_2eaa298f-9c86-422d-853d-a8d6e6740e5a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i[276778,276791] [2021-11-23 02:12:56,809 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:12:56,839 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:12:57,391 WARN L230 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_2eaa298f-9c86-422d-853d-a8d6e6740e5a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i[276778,276791] [2021-11-23 02:12:57,409 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:12:57,570 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:12:57,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:57 WrapperNode [2021-11-23 02:12:57,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:12:57,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:12:57,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:12:57,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:12:57,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:57" (1/1) ... [2021-11-23 02:12:57,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:57" (1/1) ... [2021-11-23 02:12:57,863 INFO L137 Inliner]: procedures = 341, calls = 1845, calls flagged for inlining = 158, calls inlined = 154, statements flattened = 4880 [2021-11-23 02:12:57,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:12:57,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:12:57,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:12:57,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:12:57,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:57" (1/1) ... [2021-11-23 02:12:57,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:57" (1/1) ... [2021-11-23 02:12:57,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:57" (1/1) ... [2021-11-23 02:12:57,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:57" (1/1) ... [2021-11-23 02:12:58,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:57" (1/1) ... [2021-11-23 02:12:58,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:57" (1/1) ... [2021-11-23 02:12:58,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:57" (1/1) ... [2021-11-23 02:12:58,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:12:58,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:12:58,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:12:58,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:12:58,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:57" (1/1) ... [2021-11-23 02:12:58,163 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:12:58,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:12:58,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:12:58,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:12:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure queue_iso [2021-11-23 02:12:58,233 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_iso [2021-11-23 02:12:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-23 02:12:58,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-23 02:12:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_channel [2021-11-23 02:12:58,234 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_channel [2021-11-23 02:12:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_dvb_register [2021-11-23 02:12:58,235 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_dvb_register [2021-11-23 02:12:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure cmp_establish_pp_connection [2021-11-23 02:12:58,235 INFO L138 BoogieDeclarations]: Found implementation of procedure cmp_establish_pp_connection [2021-11-23 02:12:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-23 02:12:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-23 02:12:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-23 02:12:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure node_req [2021-11-23 02:12:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure node_req [2021-11-23 02:12:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:12:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:12:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure cmp_lock [2021-11-23 02:12:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure cmp_lock [2021-11-23 02:12:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2021-11-23 02:12:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2021-11-23 02:12:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-23 02:12:58,238 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-23 02:12:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:12:58,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:12:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure cmp_read [2021-11-23 02:12:58,239 INFO L138 BoogieDeclarations]: Found implementation of procedure cmp_read [2021-11-23 02:12:58,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_demux_mutex_of_firedtv [2021-11-23 02:12:58,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_demux_mutex_of_firedtv [2021-11-23 02:12:58,239 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 02:12:58,239 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 02:12:58,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 02:12:58,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 02:12:58,240 INFO L130 BoogieDeclarations]: Found specification of procedure pad_operands [2021-11-23 02:12:58,240 INFO L138 BoogieDeclarations]: Found implementation of procedure pad_operands [2021-11-23 02:12:58,240 INFO L130 BoogieDeclarations]: Found specification of procedure avc_tuner_set_pids [2021-11-23 02:12:58,241 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_tuner_set_pids [2021-11-23 02:12:58,241 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_ca_io_poll [2021-11-23 02:12:58,241 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_ca_io_poll [2021-11-23 02:12:58,241 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2021-11-23 02:12:58,241 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2021-11-23 02:12:58,242 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_generic_release [2021-11-23 02:12:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_generic_release [2021-11-23 02:12:58,242 INFO L130 BoogieDeclarations]: Found specification of procedure clear_operands [2021-11-23 02:12:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_operands [2021-11-23 02:12:58,242 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-23 02:12:58,243 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-23 02:12:58,243 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_generic_open [2021-11-23 02:12:58,243 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_generic_open [2021-11-23 02:12:58,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:12:58,244 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-11-23 02:12:58,244 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-11-23 02:12:58,244 INFO L130 BoogieDeclarations]: Found specification of procedure avc_write [2021-11-23 02:12:58,244 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_write [2021-11-23 02:12:58,244 INFO L130 BoogieDeclarations]: Found specification of procedure get_opcr [2021-11-23 02:12:58,245 INFO L138 BoogieDeclarations]: Found implementation of procedure get_opcr [2021-11-23 02:12:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:12:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2021-11-23 02:12:58,245 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2021-11-23 02:12:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure collect_channels [2021-11-23 02:12:58,246 INFO L138 BoogieDeclarations]: Found implementation of procedure collect_channels [2021-11-23 02:12:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:12:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:12:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure fw_iso_context_destroy [2021-11-23 02:12:58,246 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_iso_context_destroy [2021-11-23 02:12:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_unregister_rc [2021-11-23 02:12:58,247 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_unregister_rc [2021-11-23 02:12:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure avc_tuner_status [2021-11-23 02:12:58,247 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_tuner_status [2021-11-23 02:12:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-23 02:12:58,248 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-23 02:12:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-23 02:12:58,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-23 02:12:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-23 02:12:58,249 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-23 02:12:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 02:12:58,249 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 02:12:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-11-23 02:12:58,249 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-11-23 02:12:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_avc_mutex_of_firedtv [2021-11-23 02:12:58,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_avc_mutex_of_firedtv [2021-11-23 02:12:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:12:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-23 02:12:58,250 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-23 02:12:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure node_remove [2021-11-23 02:12:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure node_remove [2021-11-23 02:12:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:12:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_dvb_unregister [2021-11-23 02:12:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_dvb_unregister [2021-11-23 02:12:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure add_pid_filter [2021-11-23 02:12:58,252 INFO L138 BoogieDeclarations]: Found implementation of procedure add_pid_filter [2021-11-23 02:12:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:12:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure is_register_rc [2021-11-23 02:12:58,252 INFO L138 BoogieDeclarations]: Found implementation of procedure is_register_rc [2021-11-23 02:12:58,253 INFO L130 BoogieDeclarations]: Found specification of procedure dealloc_channel [2021-11-23 02:12:58,253 INFO L138 BoogieDeclarations]: Found implementation of procedure dealloc_channel [2021-11-23 02:12:58,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:12:58,253 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:12:58,253 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:12:58,254 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:12:58,254 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2021-11-23 02:12:58,254 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2021-11-23 02:12:58,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:12:58,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_avc_mutex_of_firedtv [2021-11-23 02:12:58,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_avc_mutex_of_firedtv [2021-11-23 02:12:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure debug_fcp [2021-11-23 02:12:58,255 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_fcp [2021-11-23 02:12:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-11-23 02:12:58,255 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-11-23 02:12:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-23 02:12:58,256 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-23 02:12:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:12:58,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:12:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_net_release [2021-11-23 02:12:58,257 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_net_release [2021-11-23 02:12:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:12:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:12:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:12:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:12:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure set_opcr [2021-11-23 02:12:58,258 INFO L138 BoogieDeclarations]: Found implementation of procedure set_opcr [2021-11-23 02:12:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-23 02:12:58,258 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-23 02:12:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:12:58,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:12:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure fw_iso_buffer_destroy [2021-11-23 02:12:58,259 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_iso_buffer_destroy [2021-11-23 02:12:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure node_probe [2021-11-23 02:12:58,259 INFO L138 BoogieDeclarations]: Found implementation of procedure node_probe [2021-11-23 02:12:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure get_ca_object_pos [2021-11-23 02:12:58,260 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ca_object_pos [2021-11-23 02:12:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure node_update [2021-11-23 02:12:58,260 INFO L138 BoogieDeclarations]: Found implementation of procedure node_update [2021-11-23 02:12:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure avc_register_remote_control [2021-11-23 02:12:58,260 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_register_remote_control [2021-11-23 02:12:58,261 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2021-11-23 02:12:58,261 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2021-11-23 02:12:58,261 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:12:58,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:12:58,261 INFO L130 BoogieDeclarations]: Found specification of procedure device_of [2021-11-23 02:12:58,262 INFO L138 BoogieDeclarations]: Found implementation of procedure device_of [2021-11-23 02:12:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demux_mutex_of_firedtv [2021-11-23 02:12:58,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demux_mutex_of_firedtv [2021-11-23 02:12:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure fw_core_remove_address_handler [2021-11-23 02:12:58,262 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_core_remove_address_handler [2021-11-23 02:12:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:12:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:12:58,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:12:59,167 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:12:59,171 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:13:13,314 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:13:16,309 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:13:16,309 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 02:13:16,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:16 BoogieIcfgContainer [2021-11-23 02:13:16,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:13:16,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:13:16,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:13:16,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:13:16,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:12:53" (1/3) ... [2021-11-23 02:13:16,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@550daf00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:13:16, skipping insertion in model container [2021-11-23 02:13:16,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:57" (2/3) ... [2021-11-23 02:13:16,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@550daf00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:13:16, skipping insertion in model container [2021-11-23 02:13:16,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:16" (3/3) ... [2021-11-23 02:13:16,327 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2021-11-23 02:13:16,334 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:13:16,334 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:13:16,427 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:13:16,446 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:13:16,450 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:13:16,512 INFO L276 IsEmpty]: Start isEmpty. Operand has 823 states, 513 states have (on average 1.3840155945419104) internal successors, (710), 536 states have internal predecessors, (710), 243 states have call successors, (243), 65 states have call predecessors, (243), 65 states have return successors, (243), 243 states have call predecessors, (243), 243 states have call successors, (243) [2021-11-23 02:13:16,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 02:13:16,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:13:16,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:13:16,526 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:13:16,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:13:16,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1510381165, now seen corresponding path program 1 times [2021-11-23 02:13:16,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:13:16,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862720982] [2021-11-23 02:13:16,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:13:16,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:13:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:13:17,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:13:17,179 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:13:17,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862720982] [2021-11-23 02:13:17,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862720982] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:13:17,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:13:17,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:13:17,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965977785] [2021-11-23 02:13:17,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:13:17,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:13:17,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:13:17,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:13:17,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:13:17,227 INFO L87 Difference]: Start difference. First operand has 823 states, 513 states have (on average 1.3840155945419104) internal successors, (710), 536 states have internal predecessors, (710), 243 states have call successors, (243), 65 states have call predecessors, (243), 65 states have return successors, (243), 243 states have call predecessors, (243), 243 states have call successors, (243) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 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) [2021-11-23 02:13:20,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:22,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:24,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:26,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:31,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:33,588 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:33,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:13:33,643 INFO L93 Difference]: Finished difference Result 2304 states and 3426 transitions. [2021-11-23 02:13:33,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:13:33,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 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 15 [2021-11-23 02:13:33,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:13:33,684 INFO L225 Difference]: With dead ends: 2304 [2021-11-23 02:13:33,684 INFO L226 Difference]: Without dead ends: 1476 [2021-11-23 02:13:33,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:13:33,707 INFO L933 BasicCegarLoop]: 1242 mSDtfsCounter, 915 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:13:33,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [922 Valid, 2241 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 373 Invalid, 6 Unknown, 0 Unchecked, 16.1s Time] [2021-11-23 02:13:33,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2021-11-23 02:13:34,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1448. [2021-11-23 02:13:34,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 909 states have (on average 1.3784378437843785) internal successors, (1253), 941 states have internal predecessors, (1253), 414 states have call successors, (414), 126 states have call predecessors, (414), 124 states have return successors, (408), 404 states have call predecessors, (408), 405 states have call successors, (408) [2021-11-23 02:13:34,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2075 transitions. [2021-11-23 02:13:34,041 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2075 transitions. Word has length 15 [2021-11-23 02:13:34,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:13:34,042 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 2075 transitions. [2021-11-23 02:13:34,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 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) [2021-11-23 02:13:34,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2075 transitions. [2021-11-23 02:13:34,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 02:13:34,046 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:13:34,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:13:34,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:13:34,047 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:13:34,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:13:34,048 INFO L85 PathProgramCache]: Analyzing trace with hash -324097451, now seen corresponding path program 1 times [2021-11-23 02:13:34,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:13:34,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543764247] [2021-11-23 02:13:34,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:13:34,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:13:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:13:34,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:13:34,278 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:13:34,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543764247] [2021-11-23 02:13:34,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543764247] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:13:34,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:13:34,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:13:34,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207000024] [2021-11-23 02:13:34,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:13:34,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:13:34,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:13:34,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:13:34,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:13:34,283 INFO L87 Difference]: Start difference. First operand 1448 states and 2075 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:13:39,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:41,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:43,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:48,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:51,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:57,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:57,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:13:57,435 INFO L93 Difference]: Finished difference Result 4912 states and 7024 transitions. [2021-11-23 02:13:57,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 02:13:57,436 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-11-23 02:13:57,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:13:57,474 INFO L225 Difference]: With dead ends: 4912 [2021-11-23 02:13:57,474 INFO L226 Difference]: Without dead ends: 3465 [2021-11-23 02:13:57,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:13:57,486 INFO L933 BasicCegarLoop]: 1471 mSDtfsCounter, 2707 mSDsluCounter, 3460 mSDsCounter, 0 mSdLazyCounter, 2259 mSolverCounterSat, 521 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2781 SdHoareTripleChecker+Valid, 4267 SdHoareTripleChecker+Invalid, 2786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 521 IncrementalHoareTripleChecker+Valid, 2259 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:13:57,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2781 Valid, 4267 Invalid, 2786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [521 Valid, 2259 Invalid, 6 Unknown, 0 Unchecked, 22.7s Time] [2021-11-23 02:13:57,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2021-11-23 02:13:57,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3444. [2021-11-23 02:13:57,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3444 states, 2169 states have (on average 1.3766712770862148) internal successors, (2986), 2235 states have internal predecessors, (2986), 968 states have call successors, (968), 311 states have call predecessors, (968), 306 states have return successors, (971), 954 states have call predecessors, (971), 959 states have call successors, (971) [2021-11-23 02:13:57,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3444 states to 3444 states and 4925 transitions. [2021-11-23 02:13:57,716 INFO L78 Accepts]: Start accepts. Automaton has 3444 states and 4925 transitions. Word has length 16 [2021-11-23 02:13:57,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:13:57,717 INFO L470 AbstractCegarLoop]: Abstraction has 3444 states and 4925 transitions. [2021-11-23 02:13:57,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:13:57,717 INFO L276 IsEmpty]: Start isEmpty. Operand 3444 states and 4925 transitions. [2021-11-23 02:13:57,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 02:13:57,719 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:13:57,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:13:57,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:13:57,720 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:13:57,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:13:57,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1868765560, now seen corresponding path program 1 times [2021-11-23 02:13:57,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:13:57,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616829423] [2021-11-23 02:13:57,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:13:57,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:13:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:13:57,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:13:57,870 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:13:57,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616829423] [2021-11-23 02:13:57,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616829423] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:13:57,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:13:57,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:13:57,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994832470] [2021-11-23 02:13:57,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:13:57,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:13:57,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:13:57,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:13:57,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:13:57,873 INFO L87 Difference]: Start difference. First operand 3444 states and 4925 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:14:01,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:03,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:05,178 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:07,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:11,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:13,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:13,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:13,994 INFO L93 Difference]: Finished difference Result 6005 states and 8629 transitions. [2021-11-23 02:14:13,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:14:13,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-23 02:14:13,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:14,057 INFO L225 Difference]: With dead ends: 6005 [2021-11-23 02:14:14,058 INFO L226 Difference]: Without dead ends: 6001 [2021-11-23 02:14:14,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:14:14,063 INFO L933 BasicCegarLoop]: 1151 mSDtfsCounter, 905 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 4 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:14,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [905 Valid, 2050 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 329 Invalid, 6 Unknown, 0 Unchecked, 15.8s Time] [2021-11-23 02:14:14,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6001 states. [2021-11-23 02:14:14,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6001 to 5997. [2021-11-23 02:14:14,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5997 states, 3802 states have (on average 1.3842714360862705) internal successors, (5263), 3950 states have internal predecessors, (5263), 1626 states have call successors, (1626), 583 states have call predecessors, (1626), 568 states have return successors, (1728), 1545 states have call predecessors, (1728), 1617 states have call successors, (1728) [2021-11-23 02:14:14,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5997 states to 5997 states and 8617 transitions. [2021-11-23 02:14:14,614 INFO L78 Accepts]: Start accepts. Automaton has 5997 states and 8617 transitions. Word has length 16 [2021-11-23 02:14:14,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:14,615 INFO L470 AbstractCegarLoop]: Abstraction has 5997 states and 8617 transitions. [2021-11-23 02:14:14,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:14:14,618 INFO L276 IsEmpty]: Start isEmpty. Operand 5997 states and 8617 transitions. [2021-11-23 02:14:14,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 02:14:14,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:14,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:14:14,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:14:14,625 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:14:14,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:14,626 INFO L85 PathProgramCache]: Analyzing trace with hash 2096672534, now seen corresponding path program 1 times [2021-11-23 02:14:14,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:14,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593680311] [2021-11-23 02:14:14,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:14,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:14,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:14:14,848 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:14,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593680311] [2021-11-23 02:14:14,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593680311] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:14,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:14,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:14:14,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914910977] [2021-11-23 02:14:14,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:14,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:14:14,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:14,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:14:14,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:14:14,851 INFO L87 Difference]: Start difference. First operand 5997 states and 8617 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:14:17,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:19,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:21,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:24,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:27,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:29,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:30,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:30,624 INFO L93 Difference]: Finished difference Result 10812 states and 15548 transitions. [2021-11-23 02:14:30,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:14:30,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-23 02:14:30,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:30,795 INFO L225 Difference]: With dead ends: 10812 [2021-11-23 02:14:30,795 INFO L226 Difference]: Without dead ends: 10809 [2021-11-23 02:14:30,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:14:30,801 INFO L933 BasicCegarLoop]: 1234 mSDtfsCounter, 1071 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 2224 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:30,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1081 Valid, 2224 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 355 Invalid, 6 Unknown, 0 Unchecked, 15.5s Time] [2021-11-23 02:14:30,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10809 states. [2021-11-23 02:14:31,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10809 to 10800. [2021-11-23 02:14:31,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10800 states, 6853 states have (on average 1.3855245877717788) internal successors, (9495), 7117 states have internal predecessors, (9495), 2924 states have call successors, (2924), 1049 states have call predecessors, (2924), 1022 states have return successors, (3118), 2781 states have call predecessors, (3118), 2915 states have call successors, (3118) [2021-11-23 02:14:31,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10800 states to 10800 states and 15537 transitions. [2021-11-23 02:14:31,516 INFO L78 Accepts]: Start accepts. Automaton has 10800 states and 15537 transitions. Word has length 17 [2021-11-23 02:14:31,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:31,517 INFO L470 AbstractCegarLoop]: Abstraction has 10800 states and 15537 transitions. [2021-11-23 02:14:31,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:14:31,519 INFO L276 IsEmpty]: Start isEmpty. Operand 10800 states and 15537 transitions. [2021-11-23 02:14:31,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 02:14:31,522 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:31,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:14:31,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:14:31,524 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:14:31,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:31,525 INFO L85 PathProgramCache]: Analyzing trace with hash 571859003, now seen corresponding path program 1 times [2021-11-23 02:14:31,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:31,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521401013] [2021-11-23 02:14:31,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:31,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:31,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:14:31,759 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:31,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521401013] [2021-11-23 02:14:31,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521401013] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:31,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:31,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:14:31,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677785192] [2021-11-23 02:14:31,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:31,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:14:31,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:31,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:14:31,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:14:31,764 INFO L87 Difference]: Start difference. First operand 10800 states and 15537 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:14:34,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:36,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:38,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:41,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:44,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:47,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:47,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:47,650 INFO L93 Difference]: Finished difference Result 20218 states and 29649 transitions. [2021-11-23 02:14:47,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:14:47,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-23 02:14:47,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:47,814 INFO L225 Difference]: With dead ends: 20218 [2021-11-23 02:14:47,814 INFO L226 Difference]: Without dead ends: 20214 [2021-11-23 02:14:47,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:14:47,831 INFO L933 BasicCegarLoop]: 1228 mSDtfsCounter, 955 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 4 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:47,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [962 Valid, 2219 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 363 Invalid, 6 Unknown, 0 Unchecked, 15.4s Time] [2021-11-23 02:14:47,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20214 states. [2021-11-23 02:14:49,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20214 to 20206. [2021-11-23 02:14:49,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20206 states, 12867 states have (on average 1.3866480143001476) internal successors, (17842), 13369 states have internal predecessors, (17842), 5431 states have call successors, (5431), 1979 states have call predecessors, (5431), 1907 states have return successors, (6347), 5135 states have call predecessors, (6347), 5422 states have call successors, (6347) [2021-11-23 02:14:49,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20206 states to 20206 states and 29620 transitions. [2021-11-23 02:14:49,158 INFO L78 Accepts]: Start accepts. Automaton has 20206 states and 29620 transitions. Word has length 18 [2021-11-23 02:14:49,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:49,158 INFO L470 AbstractCegarLoop]: Abstraction has 20206 states and 29620 transitions. [2021-11-23 02:14:49,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:14:49,159 INFO L276 IsEmpty]: Start isEmpty. Operand 20206 states and 29620 transitions. [2021-11-23 02:14:49,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 02:14:49,161 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:49,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:14:49,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:14:49,161 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:14:49,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:49,162 INFO L85 PathProgramCache]: Analyzing trace with hash 547284665, now seen corresponding path program 1 times [2021-11-23 02:14:49,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:49,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787830067] [2021-11-23 02:14:49,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:49,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:49,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:14:49,329 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:49,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787830067] [2021-11-23 02:14:49,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787830067] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:49,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:49,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:14:49,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50231414] [2021-11-23 02:14:49,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:49,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:14:49,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:49,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:14:49,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:14:49,333 INFO L87 Difference]: Start difference. First operand 20206 states and 29620 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:14:51,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:53,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:55,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:58,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:01,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:04,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:05,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:05,531 INFO L93 Difference]: Finished difference Result 20222 states and 29636 transitions. [2021-11-23 02:15:05,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:15:05,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-23 02:15:05,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:05,668 INFO L225 Difference]: With dead ends: 20222 [2021-11-23 02:15:05,668 INFO L226 Difference]: Without dead ends: 20219 [2021-11-23 02:15:05,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:15:05,685 INFO L933 BasicCegarLoop]: 1234 mSDtfsCounter, 1067 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:05,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1077 Valid, 2230 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 355 Invalid, 6 Unknown, 0 Unchecked, 15.7s Time] [2021-11-23 02:15:05,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20219 states. [2021-11-23 02:15:06,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20219 to 20209. [2021-11-23 02:15:06,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20209 states, 12870 states have (on average 1.3866355866355866) internal successors, (17846), 13372 states have internal predecessors, (17846), 5431 states have call successors, (5431), 1979 states have call predecessors, (5431), 1907 states have return successors, (6347), 5135 states have call predecessors, (6347), 5422 states have call successors, (6347) [2021-11-23 02:15:07,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20209 states to 20209 states and 29624 transitions. [2021-11-23 02:15:07,081 INFO L78 Accepts]: Start accepts. Automaton has 20209 states and 29624 transitions. Word has length 19 [2021-11-23 02:15:07,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:07,082 INFO L470 AbstractCegarLoop]: Abstraction has 20209 states and 29624 transitions. [2021-11-23 02:15:07,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:15:07,082 INFO L276 IsEmpty]: Start isEmpty. Operand 20209 states and 29624 transitions. [2021-11-23 02:15:07,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 02:15:07,084 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:07,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:15:07,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:15:07,085 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:15:07,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:07,085 INFO L85 PathProgramCache]: Analyzing trace with hash -214514946, now seen corresponding path program 1 times [2021-11-23 02:15:07,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:15:07,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592652081] [2021-11-23 02:15:07,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:07,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:07,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:15:07,567 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:15:07,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592652081] [2021-11-23 02:15:07,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592652081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:07,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:07,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:15:07,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168535808] [2021-11-23 02:15:07,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:07,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:15:07,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:15:07,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:15:07,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:15:07,570 INFO L87 Difference]: Start difference. First operand 20209 states and 29624 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:15:10,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:12,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:14,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:16,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:19,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:22,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:23,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:23,237 INFO L93 Difference]: Finished difference Result 20223 states and 29636 transitions. [2021-11-23 02:15:23,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:15:23,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-23 02:15:23,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:23,356 INFO L225 Difference]: With dead ends: 20223 [2021-11-23 02:15:23,356 INFO L226 Difference]: Without dead ends: 20210 [2021-11-23 02:15:23,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:15:23,369 INFO L933 BasicCegarLoop]: 1235 mSDtfsCounter, 1064 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:23,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1074 Valid, 2234 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 354 Invalid, 6 Unknown, 0 Unchecked, 15.1s Time] [2021-11-23 02:15:23,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20210 states. [2021-11-23 02:15:24,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20210 to 20200. [2021-11-23 02:15:24,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20200 states, 12863 states have (on average 1.3864572805721838) internal successors, (17834), 13365 states have internal predecessors, (17834), 5430 states have call successors, (5430), 1978 states have call predecessors, (5430), 1906 states have return successors, (6346), 5134 states have call predecessors, (6346), 5421 states have call successors, (6346) [2021-11-23 02:15:24,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20200 states to 20200 states and 29610 transitions. [2021-11-23 02:15:24,596 INFO L78 Accepts]: Start accepts. Automaton has 20200 states and 29610 transitions. Word has length 20 [2021-11-23 02:15:24,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:24,597 INFO L470 AbstractCegarLoop]: Abstraction has 20200 states and 29610 transitions. [2021-11-23 02:15:24,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:15:24,597 INFO L276 IsEmpty]: Start isEmpty. Operand 20200 states and 29610 transitions. [2021-11-23 02:15:24,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 02:15:24,605 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:24,605 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:15:24,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:15:24,606 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:15:24,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:24,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1137275740, now seen corresponding path program 1 times [2021-11-23 02:15:24,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:15:24,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167015795] [2021-11-23 02:15:24,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:24,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:24,945 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:15:24,945 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:15:24,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167015795] [2021-11-23 02:15:24,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167015795] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:24,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:24,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:15:24,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641854164] [2021-11-23 02:15:24,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:24,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:15:24,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:15:24,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:15:24,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:15:24,949 INFO L87 Difference]: Start difference. First operand 20200 states and 29610 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 02:15:28,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:30,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:32,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:34,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:38,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:41,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:41,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:41,950 INFO L93 Difference]: Finished difference Result 38374 states and 56265 transitions. [2021-11-23 02:15:41,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:15:41,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2021-11-23 02:15:41,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:42,067 INFO L225 Difference]: With dead ends: 38374 [2021-11-23 02:15:42,067 INFO L226 Difference]: Without dead ends: 20270 [2021-11-23 02:15:42,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:15:42,179 INFO L933 BasicCegarLoop]: 999 mSDtfsCounter, 39 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 6 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3000 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:42,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 3000 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 530 Invalid, 6 Unknown, 0 Unchecked, 16.2s Time] [2021-11-23 02:15:42,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20270 states. [2021-11-23 02:15:43,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20270 to 20214. [2021-11-23 02:15:43,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20214 states, 12877 states have (on average 1.3859594626077503) internal successors, (17847), 13379 states have internal predecessors, (17847), 5430 states have call successors, (5430), 1978 states have call predecessors, (5430), 1906 states have return successors, (6346), 5134 states have call predecessors, (6346), 5421 states have call successors, (6346) [2021-11-23 02:15:43,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20214 states to 20214 states and 29623 transitions. [2021-11-23 02:15:43,539 INFO L78 Accepts]: Start accepts. Automaton has 20214 states and 29623 transitions. Word has length 41 [2021-11-23 02:15:43,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:43,542 INFO L470 AbstractCegarLoop]: Abstraction has 20214 states and 29623 transitions. [2021-11-23 02:15:43,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 02:15:43,542 INFO L276 IsEmpty]: Start isEmpty. Operand 20214 states and 29623 transitions. [2021-11-23 02:15:43,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 02:15:43,554 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:43,554 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:15:43,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:15:43,555 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:15:43,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:43,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1413713182, now seen corresponding path program 1 times [2021-11-23 02:15:43,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:15:43,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670989200] [2021-11-23 02:15:43,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:43,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:43,790 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 02:15:43,790 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:15:43,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670989200] [2021-11-23 02:15:43,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670989200] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:43,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:43,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:15:43,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850359726] [2021-11-23 02:15:43,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:43,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:15:43,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:15:43,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:15:43,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:15:43,794 INFO L87 Difference]: Start difference. First operand 20214 states and 29623 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 02:15:46,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:49,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:51,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:53,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:56,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:00,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:01,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:01,405 INFO L93 Difference]: Finished difference Result 38304 states and 56148 transitions. [2021-11-23 02:16:01,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:16:01,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2021-11-23 02:16:01,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:01,530 INFO L225 Difference]: With dead ends: 38304 [2021-11-23 02:16:01,530 INFO L226 Difference]: Without dead ends: 20188 [2021-11-23 02:16:01,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:16:01,638 INFO L933 BasicCegarLoop]: 1226 mSDtfsCounter, 1046 mSDsluCounter, 2568 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 3444 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:16:01,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1056 Valid, 3444 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 542 Invalid, 6 Unknown, 0 Unchecked, 16.7s Time] [2021-11-23 02:16:01,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20188 states. [2021-11-23 02:16:02,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20188 to 20178. [2021-11-23 02:16:02,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20178 states, 12865 states have (on average 1.3856976292265837) internal successors, (17827), 13363 states have internal predecessors, (17827), 5406 states have call successors, (5406), 1978 states have call predecessors, (5406), 1906 states have return successors, (6322), 5114 states have call predecessors, (6322), 5397 states have call successors, (6322) [2021-11-23 02:16:03,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20178 states to 20178 states and 29555 transitions. [2021-11-23 02:16:03,090 INFO L78 Accepts]: Start accepts. Automaton has 20178 states and 29555 transitions. Word has length 43 [2021-11-23 02:16:03,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:03,091 INFO L470 AbstractCegarLoop]: Abstraction has 20178 states and 29555 transitions. [2021-11-23 02:16:03,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 02:16:03,092 INFO L276 IsEmpty]: Start isEmpty. Operand 20178 states and 29555 transitions. [2021-11-23 02:16:03,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 02:16:03,101 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:03,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:16:03,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:16:03,101 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:16:03,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:03,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1107675290, now seen corresponding path program 1 times [2021-11-23 02:16:03,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:16:03,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980242850] [2021-11-23 02:16:03,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:03,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:03,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:16:03,288 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:16:03,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980242850] [2021-11-23 02:16:03,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980242850] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:16:03,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:16:03,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:16:03,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070735784] [2021-11-23 02:16:03,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:16:03,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:16:03,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:16:03,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:16:03,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:16:03,291 INFO L87 Difference]: Start difference. First operand 20178 states and 29555 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-23 02:16:06,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:08,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:10,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:12,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:14,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:18,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:19,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:19,447 INFO L93 Difference]: Finished difference Result 43659 states and 64028 transitions. [2021-11-23 02:16:19,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:16:19,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2021-11-23 02:16:19,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:19,534 INFO L225 Difference]: With dead ends: 43659 [2021-11-23 02:16:19,534 INFO L226 Difference]: Without dead ends: 23482 [2021-11-23 02:16:19,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:16:19,602 INFO L933 BasicCegarLoop]: 1234 mSDtfsCounter, 419 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 2221 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:16:19,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 2221 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 389 Invalid, 6 Unknown, 0 Unchecked, 15.3s Time] [2021-11-23 02:16:19,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23482 states. [2021-11-23 02:16:20,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23482 to 23229. [2021-11-23 02:16:20,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23229 states, 15230 states have (on average 1.4176625082074852) internal successors, (21591), 15838 states have internal predecessors, (21591), 5853 states have call successors, (5853), 2233 states have call predecessors, (5853), 2145 states have return successors, (6665), 5501 states have call predecessors, (6665), 5844 states have call successors, (6665) [2021-11-23 02:16:20,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23229 states to 23229 states and 34109 transitions. [2021-11-23 02:16:20,965 INFO L78 Accepts]: Start accepts. Automaton has 23229 states and 34109 transitions. Word has length 55 [2021-11-23 02:16:20,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:20,966 INFO L470 AbstractCegarLoop]: Abstraction has 23229 states and 34109 transitions. [2021-11-23 02:16:20,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-23 02:16:20,966 INFO L276 IsEmpty]: Start isEmpty. Operand 23229 states and 34109 transitions. [2021-11-23 02:16:20,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 02:16:20,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:20,976 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:16:20,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 02:16:20,976 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:16:20,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:20,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1940627378, now seen corresponding path program 1 times [2021-11-23 02:16:20,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:16:20,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291105699] [2021-11-23 02:16:20,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:20,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:21,249 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 02:16:21,249 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:16:21,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291105699] [2021-11-23 02:16:21,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291105699] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:16:21,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:16:21,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:16:21,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340504312] [2021-11-23 02:16:21,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:16:21,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:16:21,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:16:21,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:16:21,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:16:21,252 INFO L87 Difference]: Start difference. First operand 23229 states and 34109 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-23 02:16:24,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:27,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:29,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:31,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:33,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:36,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:37,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:37,217 INFO L93 Difference]: Finished difference Result 37528 states and 55599 transitions. [2021-11-23 02:16:37,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:16:37,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 51 [2021-11-23 02:16:37,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:37,281 INFO L225 Difference]: With dead ends: 37528 [2021-11-23 02:16:37,281 INFO L226 Difference]: Without dead ends: 14414 [2021-11-23 02:16:37,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:16:37,337 INFO L933 BasicCegarLoop]: 1123 mSDtfsCounter, 1057 mSDsluCounter, 3239 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 41 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 3900 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:16:37,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1064 Valid, 3900 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 687 Invalid, 5 Unknown, 0 Unchecked, 15.1s Time] [2021-11-23 02:16:37,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14414 states. [2021-11-23 02:16:38,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14414 to 11810. [2021-11-23 02:16:38,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11810 states, 7711 states have (on average 1.4007262352483465) internal successors, (10801), 7981 states have internal predecessors, (10801), 2895 states have call successors, (2895), 1244 states have call predecessors, (2895), 1203 states have return successors, (3344), 2769 states have call predecessors, (3344), 2889 states have call successors, (3344) [2021-11-23 02:16:38,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11810 states to 11810 states and 17040 transitions. [2021-11-23 02:16:38,137 INFO L78 Accepts]: Start accepts. Automaton has 11810 states and 17040 transitions. Word has length 51 [2021-11-23 02:16:38,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:38,137 INFO L470 AbstractCegarLoop]: Abstraction has 11810 states and 17040 transitions. [2021-11-23 02:16:38,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-23 02:16:38,138 INFO L276 IsEmpty]: Start isEmpty. Operand 11810 states and 17040 transitions. [2021-11-23 02:16:38,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 02:16:38,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:38,145 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:16:38,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 02:16:38,145 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:16:38,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:38,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2021852213, now seen corresponding path program 1 times [2021-11-23 02:16:38,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:16:38,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699691928] [2021-11-23 02:16:38,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:38,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:38,490 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 02:16:38,490 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:16:38,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699691928] [2021-11-23 02:16:38,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699691928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:16:38,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:16:38,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:16:38,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779878714] [2021-11-23 02:16:38,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:16:38,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:16:38,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:16:38,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:16:38,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:16:38,494 INFO L87 Difference]: Start difference. First operand 11810 states and 17040 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-23 02:16:41,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:43,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:45,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:47,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:50,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:51,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:51,190 INFO L93 Difference]: Finished difference Result 23757 states and 35163 transitions. [2021-11-23 02:16:51,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:16:51,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 54 [2021-11-23 02:16:51,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:51,257 INFO L225 Difference]: With dead ends: 23757 [2021-11-23 02:16:51,258 INFO L226 Difference]: Without dead ends: 12062 [2021-11-23 02:16:51,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:16:51,305 INFO L933 BasicCegarLoop]: 832 mSDtfsCounter, 19 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:16:51,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 1660 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 5 Unknown, 0 Unchecked, 12.2s Time] [2021-11-23 02:16:51,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12062 states. [2021-11-23 02:16:52,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12062 to 11824. [2021-11-23 02:16:52,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11824 states, 7725 states have (on average 1.4) internal successors, (10815), 7995 states have internal predecessors, (10815), 2895 states have call successors, (2895), 1244 states have call predecessors, (2895), 1203 states have return successors, (3344), 2769 states have call predecessors, (3344), 2889 states have call successors, (3344) [2021-11-23 02:16:52,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11824 states to 11824 states and 17054 transitions. [2021-11-23 02:16:52,204 INFO L78 Accepts]: Start accepts. Automaton has 11824 states and 17054 transitions. Word has length 54 [2021-11-23 02:16:52,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:52,205 INFO L470 AbstractCegarLoop]: Abstraction has 11824 states and 17054 transitions. [2021-11-23 02:16:52,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-23 02:16:52,205 INFO L276 IsEmpty]: Start isEmpty. Operand 11824 states and 17054 transitions. [2021-11-23 02:16:52,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-23 02:16:52,219 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:52,219 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:16:52,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 02:16:52,220 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:16:52,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:52,221 INFO L85 PathProgramCache]: Analyzing trace with hash -152016355, now seen corresponding path program 1 times [2021-11-23 02:16:52,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:16:52,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820541672] [2021-11-23 02:16:52,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:52,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:52,452 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:16:52,452 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:16:52,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820541672] [2021-11-23 02:16:52,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820541672] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:16:52,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846274615] [2021-11-23 02:16:52,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:52,454 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:16:52,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:16:52,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:16:52,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:16:53,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:53,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 1598 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:16:53,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:16:53,958 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:16:53,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:16:53,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846274615] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:16:53,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:16:53,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-23 02:16:53,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661524592] [2021-11-23 02:16:53,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:16:53,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:16:53,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:16:53,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:16:53,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:16:53,961 INFO L87 Difference]: Start difference. First operand 11824 states and 17054 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-23 02:16:57,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:59,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:01,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:03,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:06,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:07,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:17:07,965 INFO L93 Difference]: Finished difference Result 30832 states and 44339 transitions. [2021-11-23 02:17:07,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:17:07,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 68 [2021-11-23 02:17:07,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:17:08,075 INFO L225 Difference]: With dead ends: 30832 [2021-11-23 02:17:08,075 INFO L226 Difference]: Without dead ends: 19123 [2021-11-23 02:17:08,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:17:08,132 INFO L933 BasicCegarLoop]: 1390 mSDtfsCounter, 901 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 8 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 2204 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:17:08,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [909 Valid, 2204 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 424 Invalid, 5 Unknown, 0 Unchecked, 13.2s Time] [2021-11-23 02:17:08,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19123 states. [2021-11-23 02:17:08,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19123 to 19056. [2021-11-23 02:17:08,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19056 states, 12345 states have (on average 1.3891454029971648) internal successors, (17149), 12775 states have internal predecessors, (17149), 4743 states have call successors, (4743), 2012 states have call predecessors, (4743), 1967 states have return successors, (5400), 4573 states have call predecessors, (5400), 4737 states have call successors, (5400) [2021-11-23 02:17:09,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19056 states to 19056 states and 27292 transitions. [2021-11-23 02:17:09,028 INFO L78 Accepts]: Start accepts. Automaton has 19056 states and 27292 transitions. Word has length 68 [2021-11-23 02:17:09,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:17:09,028 INFO L470 AbstractCegarLoop]: Abstraction has 19056 states and 27292 transitions. [2021-11-23 02:17:09,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-23 02:17:09,028 INFO L276 IsEmpty]: Start isEmpty. Operand 19056 states and 27292 transitions. [2021-11-23 02:17:09,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 02:17:09,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:17:09,036 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:17:09,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:17:09,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-23 02:17:09,253 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:17:09,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:17:09,253 INFO L85 PathProgramCache]: Analyzing trace with hash 134553774, now seen corresponding path program 1 times [2021-11-23 02:17:09,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:17:09,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971879809] [2021-11-23 02:17:09,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:17:09,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:17:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:17:09,622 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 02:17:09,622 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:17:09,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971879809] [2021-11-23 02:17:09,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971879809] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:17:09,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:17:09,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:17:09,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114155964] [2021-11-23 02:17:09,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:17:09,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:17:09,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:17:09,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:17:09,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:17:09,626 INFO L87 Difference]: Start difference. First operand 19056 states and 27292 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 02:17:12,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:15,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:17,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:19,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:21,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:22,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:17:22,684 INFO L93 Difference]: Finished difference Result 19561 states and 27894 transitions. [2021-11-23 02:17:22,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:17:22,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2021-11-23 02:17:22,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:17:22,751 INFO L225 Difference]: With dead ends: 19561 [2021-11-23 02:17:22,752 INFO L226 Difference]: Without dead ends: 19558 [2021-11-23 02:17:22,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:17:22,760 INFO L933 BasicCegarLoop]: 858 mSDtfsCounter, 163 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:17:22,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 1599 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 5 Unknown, 0 Unchecked, 12.4s Time] [2021-11-23 02:17:22,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19558 states. [2021-11-23 02:17:23,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19558 to 19239. [2021-11-23 02:17:23,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19239 states, 12467 states have (on average 1.3887061843266222) internal successors, (17313), 12915 states have internal predecessors, (17313), 4739 states have call successors, (4739), 2069 states have call predecessors, (4739), 2032 states have return successors, (5396), 4575 states have call predecessors, (5396), 4733 states have call successors, (5396) [2021-11-23 02:17:23,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19239 states to 19239 states and 27448 transitions. [2021-11-23 02:17:23,719 INFO L78 Accepts]: Start accepts. Automaton has 19239 states and 27448 transitions. Word has length 69 [2021-11-23 02:17:23,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:17:23,720 INFO L470 AbstractCegarLoop]: Abstraction has 19239 states and 27448 transitions. [2021-11-23 02:17:23,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 02:17:23,720 INFO L276 IsEmpty]: Start isEmpty. Operand 19239 states and 27448 transitions. [2021-11-23 02:17:23,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-23 02:17:23,733 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:17:23,734 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:17:23,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 02:17:23,734 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:17:23,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:17:23,735 INFO L85 PathProgramCache]: Analyzing trace with hash 334086333, now seen corresponding path program 1 times [2021-11-23 02:17:23,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:17:23,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547433170] [2021-11-23 02:17:23,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:17:23,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:17:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:17:24,018 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 02:17:24,018 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:17:24,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547433170] [2021-11-23 02:17:24,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547433170] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:17:24,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444677584] [2021-11-23 02:17:24,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:17:24,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:17:24,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:17:24,021 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:17:24,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:17:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:17:25,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 1775 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 02:17:25,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:17:25,628 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 02:17:25,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:17:26,142 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 02:17:26,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444677584] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 02:17:26,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:17:26,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6] total 11 [2021-11-23 02:17:26,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448994332] [2021-11-23 02:17:26,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:17:26,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:17:26,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:17:26,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:17:26,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-23 02:17:26,145 INFO L87 Difference]: Start difference. First operand 19239 states and 27448 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-23 02:17:29,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:33,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:35,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:37,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:40,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:44,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:17:44,037 INFO L93 Difference]: Finished difference Result 46099 states and 67281 transitions. [2021-11-23 02:17:44,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 02:17:44,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 93 [2021-11-23 02:17:44,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:17:44,155 INFO L225 Difference]: With dead ends: 46099 [2021-11-23 02:17:44,155 INFO L226 Difference]: Without dead ends: 26975 [2021-11-23 02:17:44,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-11-23 02:17:44,220 INFO L933 BasicCegarLoop]: 1510 mSDtfsCounter, 1054 mSDsluCounter, 2859 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 38 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 3824 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:17:44,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1083 Valid, 3824 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1723 Invalid, 5 Unknown, 0 Unchecked, 16.6s Time] [2021-11-23 02:17:44,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26975 states. [2021-11-23 02:17:45,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26975 to 21335. [2021-11-23 02:17:45,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21335 states, 14057 states have (on average 1.4060610372056626) internal successors, (19765), 14575 states have internal predecessors, (19765), 5019 states have call successors, (5019), 2261 states have call predecessors, (5019), 2258 states have return successors, (5718), 4867 states have call predecessors, (5718), 5013 states have call successors, (5718) [2021-11-23 02:17:45,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21335 states to 21335 states and 30502 transitions. [2021-11-23 02:17:45,594 INFO L78 Accepts]: Start accepts. Automaton has 21335 states and 30502 transitions. Word has length 93 [2021-11-23 02:17:45,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:17:45,595 INFO L470 AbstractCegarLoop]: Abstraction has 21335 states and 30502 transitions. [2021-11-23 02:17:45,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-23 02:17:45,596 INFO L276 IsEmpty]: Start isEmpty. Operand 21335 states and 30502 transitions. [2021-11-23 02:17:45,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-23 02:17:45,612 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:17:45,613 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:17:45,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:17:45,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-23 02:17:45,841 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:17:45,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:17:45,841 INFO L85 PathProgramCache]: Analyzing trace with hash 15963067, now seen corresponding path program 1 times [2021-11-23 02:17:45,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:17:45,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744980244] [2021-11-23 02:17:45,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:17:45,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:17:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:17:46,065 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-23 02:17:46,066 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:17:46,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744980244] [2021-11-23 02:17:46,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744980244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:17:46,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:17:46,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:17:46,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28000906] [2021-11-23 02:17:46,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:17:46,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:17:46,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:17:46,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:17:46,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:17:46,069 INFO L87 Difference]: Start difference. First operand 21335 states and 30502 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 02:17:49,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:52,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:54,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:56,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:58,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:18:00,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:18:00,732 INFO L93 Difference]: Finished difference Result 43972 states and 64231 transitions. [2021-11-23 02:18:00,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:18:00,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2021-11-23 02:18:00,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:18:00,829 INFO L225 Difference]: With dead ends: 43972 [2021-11-23 02:18:00,829 INFO L226 Difference]: Without dead ends: 22752 [2021-11-23 02:18:00,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:18:00,891 INFO L933 BasicCegarLoop]: 860 mSDtfsCounter, 35 mSDsluCounter, 1981 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 2533 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:18:00,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 2533 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 494 Invalid, 5 Unknown, 0 Unchecked, 13.4s Time] [2021-11-23 02:18:00,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22752 states. [2021-11-23 02:18:02,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22752 to 21403. [2021-11-23 02:18:02,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21403 states, 14125 states have (on average 1.4041061946902655) internal successors, (19833), 14643 states have internal predecessors, (19833), 5019 states have call successors, (5019), 2261 states have call predecessors, (5019), 2258 states have return successors, (5718), 4867 states have call predecessors, (5718), 5013 states have call successors, (5718) [2021-11-23 02:18:02,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21403 states to 21403 states and 30570 transitions. [2021-11-23 02:18:02,527 INFO L78 Accepts]: Start accepts. Automaton has 21403 states and 30570 transitions. Word has length 123 [2021-11-23 02:18:02,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:18:02,527 INFO L470 AbstractCegarLoop]: Abstraction has 21403 states and 30570 transitions. [2021-11-23 02:18:02,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 02:18:02,528 INFO L276 IsEmpty]: Start isEmpty. Operand 21403 states and 30570 transitions. [2021-11-23 02:18:02,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-23 02:18:02,543 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:18:02,543 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:18:02,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 02:18:02,544 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:18:02,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:18:02,545 INFO L85 PathProgramCache]: Analyzing trace with hash -29973704, now seen corresponding path program 1 times [2021-11-23 02:18:02,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:18:02,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093861732] [2021-11-23 02:18:02,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:18:02,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:18:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:18:03,155 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 02:18:03,155 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:18:03,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093861732] [2021-11-23 02:18:03,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093861732] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:18:03,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:18:03,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:18:03,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438296726] [2021-11-23 02:18:03,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:18:03,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:18:03,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:18:03,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:18:03,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:18:03,157 INFO L87 Difference]: Start difference. First operand 21403 states and 30570 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-23 02:18:07,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:18:10,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:18:12,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:18:14,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:18:16,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:18:18,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:18:18,057 INFO L93 Difference]: Finished difference Result 22396 states and 31772 transitions. [2021-11-23 02:18:18,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:18:18,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 125 [2021-11-23 02:18:18,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:18:18,133 INFO L225 Difference]: With dead ends: 22396 [2021-11-23 02:18:18,133 INFO L226 Difference]: Without dead ends: 22393 [2021-11-23 02:18:18,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:18:18,147 INFO L933 BasicCegarLoop]: 905 mSDtfsCounter, 304 mSDsluCounter, 2743 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 62 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 3211 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:18:18,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 3211 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 664 Invalid, 5 Unknown, 0 Unchecked, 14.0s Time] [2021-11-23 02:18:18,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22393 states. [2021-11-23 02:18:19,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22393 to 22378. [2021-11-23 02:18:19,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22378 states, 14781 states have (on average 1.3999729382315134) internal successors, (20693), 15322 states have internal predecessors, (20693), 5155 states have call successors, (5155), 2453 states have call predecessors, (5155), 2441 states have return successors, (5882), 4998 states have call predecessors, (5882), 5149 states have call successors, (5882) [2021-11-23 02:18:19,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22378 states to 22378 states and 31730 transitions. [2021-11-23 02:18:19,184 INFO L78 Accepts]: Start accepts. Automaton has 22378 states and 31730 transitions. Word has length 125 [2021-11-23 02:18:19,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:18:19,185 INFO L470 AbstractCegarLoop]: Abstraction has 22378 states and 31730 transitions. [2021-11-23 02:18:19,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-23 02:18:19,186 INFO L276 IsEmpty]: Start isEmpty. Operand 22378 states and 31730 transitions. [2021-11-23 02:18:19,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-23 02:18:19,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:18:19,203 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:18:19,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-23 02:18:19,325 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:18:19,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:18:19,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1200219155, now seen corresponding path program 1 times [2021-11-23 02:18:19,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:18:19,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644331033] [2021-11-23 02:18:19,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:18:19,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:18:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:18:19,587 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 02:18:19,588 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:18:19,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644331033] [2021-11-23 02:18:19,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644331033] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:18:19,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:18:19,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:18:19,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843284882] [2021-11-23 02:18:19,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:18:19,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:18:19,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:18:19,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:18:19,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:18:19,591 INFO L87 Difference]: Start difference. First operand 22378 states and 31730 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 02:18:22,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:18:26,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:18:28,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:18:30,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:18:32,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:18:33,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:18:33,711 INFO L93 Difference]: Finished difference Result 44725 states and 63838 transitions. [2021-11-23 02:18:33,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:18:33,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 135 [2021-11-23 02:18:33,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:18:33,786 INFO L225 Difference]: With dead ends: 44725 [2021-11-23 02:18:33,786 INFO L226 Difference]: Without dead ends: 22462 [2021-11-23 02:18:33,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:18:33,841 INFO L933 BasicCegarLoop]: 831 mSDtfsCounter, 1 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:18:33,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1660 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 5 Unknown, 0 Unchecked, 12.8s Time] [2021-11-23 02:18:33,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22462 states. [2021-11-23 02:18:35,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22462 to 22406. [2021-11-23 02:18:35,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22406 states, 14809 states have (on average 1.3992166925518266) internal successors, (20721), 15350 states have internal predecessors, (20721), 5155 states have call successors, (5155), 2453 states have call predecessors, (5155), 2441 states have return successors, (5882), 4998 states have call predecessors, (5882), 5149 states have call successors, (5882) [2021-11-23 02:18:35,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22406 states to 22406 states and 31758 transitions. [2021-11-23 02:18:35,117 INFO L78 Accepts]: Start accepts. Automaton has 22406 states and 31758 transitions. Word has length 135 [2021-11-23 02:18:35,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:18:35,118 INFO L470 AbstractCegarLoop]: Abstraction has 22406 states and 31758 transitions. [2021-11-23 02:18:35,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 02:18:35,118 INFO L276 IsEmpty]: Start isEmpty. Operand 22406 states and 31758 transitions. [2021-11-23 02:18:35,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-23 02:18:35,134 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:18:35,134 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:18:35,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-23 02:18:35,135 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:18:35,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:18:35,135 INFO L85 PathProgramCache]: Analyzing trace with hash 277235773, now seen corresponding path program 1 times [2021-11-23 02:18:35,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:18:35,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992448200] [2021-11-23 02:18:35,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:18:35,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:18:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:18:35,368 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 02:18:35,369 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:18:35,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992448200] [2021-11-23 02:18:35,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992448200] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:18:35,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427692771] [2021-11-23 02:18:35,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:18:35,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:18:35,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:18:35,371 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:18:35,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eaa298f-9c86-422d-853d-a8d6e6740e5a/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:18:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:18:36,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 2250 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:18:36,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:18:36,962 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 02:18:36,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:18:37,345 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 02:18:37,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427692771] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:18:37,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [917931454] [2021-11-23 02:18:37,381 INFO L159 IcfgInterpreter]: Started Sifa with 117 locations of interest [2021-11-23 02:18:37,381 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:18:37,388 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:18:37,395 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:18:37,396 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:18:58,158 INFO L354 Elim1Store]: treesize reduction 380, result has 6.4 percent of original size [2021-11-23 02:18:58,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 25 case distinctions, treesize of input 112 treesize of output 109 [2021-11-23 02:18:58,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 22 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-23 02:18:58,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 02:18:58,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 9 [2021-11-23 02:18:58,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-23 02:18:58,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-23 02:18:58,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-23 02:18:58,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-23 02:18:58,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:58,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 61 treesize of output 46 [2021-11-23 02:18:59,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 46 treesize of output 30 [2021-11-23 02:18:59,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 27 treesize of output 11 [2021-11-23 02:18:59,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2021-11-23 02:18:59,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 61 treesize of output 46 [2021-11-23 02:18:59,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 46 treesize of output 30 [2021-11-23 02:18:59,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 27 treesize of output 11 [2021-11-23 02:18:59,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,790 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:18:59,877 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:18:59,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 151 treesize of output 56 [2021-11-23 02:18:59,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:18:59,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 93 [2021-11-23 02:19:00,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,142 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:19:00,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 27 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 85 treesize of output 70 [2021-11-23 02:19:00,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,269 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:19:00,358 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:19:00,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 151 treesize of output 56 [2021-11-23 02:19:00,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:00,945 INFO L354 Elim1Store]: treesize reduction 91, result has 17.3 percent of original size [2021-11-23 02:19:00,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 71 [2021-11-23 02:19:01,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,059 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:19:01,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 70 [2021-11-23 02:19:01,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:01,241 INFO L354 Elim1Store]: treesize reduction 91, result has 17.3 percent of original size [2021-11-23 02:19:01,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 71 [2021-11-23 02:19:02,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 02:19:03,061 INFO L354 Elim1Store]: treesize reduction 384, result has 7.5 percent of original size [2021-11-23 02:19:03,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 39 [2021-11-23 02:19:36,381 INFO L197 IcfgInterpreter]: Interpreting procedure node_probe with input of size 209 for LOIs [2021-11-23 02:19:36,691 INFO L354 Elim1Store]: treesize reduction 380, result has 6.4 percent of original size [2021-11-23 02:19:36,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 25 case distinctions, treesize of input 175 treesize of output 172 [2021-11-23 02:19:36,848 INFO L354 Elim1Store]: treesize reduction 260, result has 9.1 percent of original size [2021-11-23 02:19:36,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 154 treesize of output 163 [2021-11-23 02:19:37,255 INFO L354 Elim1Store]: treesize reduction 380, result has 6.4 percent of original size [2021-11-23 02:19:37,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 25 case distinctions, treesize of input 175 treesize of output 172 [2021-11-23 02:19:37,398 INFO L354 Elim1Store]: treesize reduction 260, result has 9.1 percent of original size [2021-11-23 02:19:37,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 154 treesize of output 163 [2021-11-23 02:19:38,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 28 [2021-11-23 02:19:38,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 28 [2021-11-23 02:19:38,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37 [2021-11-23 02:19:38,403 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-23 02:19:38,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 141 treesize of output 129 [2021-11-23 02:19:38,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 28 [2021-11-23 02:19:38,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 28 [2021-11-23 02:19:38,768 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-23 02:19:38,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 141 treesize of output 129 [2021-11-23 02:19:38,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:38,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37 [2021-11-23 02:19:39,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2021-11-23 02:19:39,580 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-23 02:19:39,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 141 treesize of output 129 [2021-11-23 02:19:39,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 24 treesize of output 22 [2021-11-23 02:19:39,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 24 treesize of output 22 [2021-11-23 02:19:39,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:39,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:39,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:39,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:39,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:39,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:39,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 28 [2021-11-23 02:19:40,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:40,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:40,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:40,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:40,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:40,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:40,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 28 [2021-11-23 02:19:40,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:40,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:40,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:40,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:40,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:40,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:40,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37 [2021-11-23 02:19:40,143 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-23 02:19:40,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 141 treesize of output 129 [2021-11-23 02:19:42,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:42,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:43,136 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 02:19:43,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 38 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 611 treesize of output 559 [2021-11-23 02:19:43,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:43,286 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 02:19:43,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 37 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 508 treesize of output 456 [2021-11-23 02:19:43,407 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 02:19:43,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 42 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 405 treesize of output 372 [2021-11-23 02:19:43,472 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-23 02:19:43,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 354 treesize of output 342 [2021-11-23 02:19:45,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:45,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:45,410 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 02:19:45,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 38 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 611 treesize of output 559 [2021-11-23 02:19:45,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:45,576 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 02:19:45,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 37 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 508 treesize of output 456 [2021-11-23 02:19:45,699 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 02:19:45,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 42 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 405 treesize of output 372 [2021-11-23 02:19:45,762 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-23 02:19:45,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 354 treesize of output 342 [2021-11-23 02:19:50,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:50,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:50,184 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:19:50,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 38 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 465 treesize of output 421 [2021-11-23 02:19:50,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:50,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:50,311 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:19:50,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 38 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 386 treesize of output 342 [2021-11-23 02:19:50,393 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:19:50,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 42 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 307 treesize of output 274 [2021-11-23 02:19:50,455 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-23 02:19:50,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 268 treesize of output 256 [2021-11-23 02:19:51,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:51,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,025 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:19:53,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 38 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 575 treesize of output 509 [2021-11-23 02:19:53,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,412 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:19:53,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 38 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 466 treesize of output 400 [2021-11-23 02:19:53,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:19:53,553 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:19:53,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 42 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 357 treesize of output 306 [2021-11-23 02:19:53,594 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-23 02:19:53,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 294 treesize of output 282 [2021-11-23 02:20:23,471 WARN L227 SmtUtils]: Spent 28.02s on a formula simplification. DAG size of input: 93 DAG size of output: 22 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:20:23,472 INFO L354 Elim1Store]: treesize reduction 384, result has 7.5 percent of original size [2021-11-23 02:20:23,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 2721 treesize of output 2733 [2021-11-23 02:20:24,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:24,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,725 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:20:25,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 38 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 575 treesize of output 509 [2021-11-23 02:20:25,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:25,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,113 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:20:26,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 38 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 466 treesize of output 400 [2021-11-23 02:20:26,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,232 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:20:26,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 42 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 357 treesize of output 306 [2021-11-23 02:20:26,289 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-23 02:20:26,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 294 treesize of output 282 [2021-11-23 02:20:26,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,790 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 02:20:26,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 38 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 611 treesize of output 559 [2021-11-23 02:20:26,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:26,921 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 02:20:26,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 37 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 508 treesize of output 456 [2021-11-23 02:20:27,003 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 02:20:27,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 42 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 405 treesize of output 372 [2021-11-23 02:20:27,055 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-23 02:20:27,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 354 treesize of output 342 [2021-11-23 02:20:27,821 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-23 02:20:27,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 141 treesize of output 129 [2021-11-23 02:20:27,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37 [2021-11-23 02:20:27,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 28 [2021-11-23 02:20:27,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:27,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 28 [2021-11-23 02:20:28,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37 [2021-11-23 02:20:28,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 28 [2021-11-23 02:20:28,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:28,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 28 [2021-11-23 02:20:28,227 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-23 02:20:28,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 141 treesize of output 129 [2021-11-23 02:20:28,678 INFO L354 Elim1Store]: treesize reduction 260, result has 9.1 percent of original size [2021-11-23 02:20:28,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 160 treesize of output 169 [2021-11-23 02:20:28,889 INFO L354 Elim1Store]: treesize reduction 380, result has 6.4 percent of original size [2021-11-23 02:20:28,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 25 case distinctions, treesize of input 184 treesize of output 181 [2021-11-23 02:20:29,076 INFO L197 IcfgInterpreter]: Interpreting procedure __mutex_init with input of size 433 for LOIs [2021-11-23 02:20:29,482 INFO L197 IcfgInterpreter]: Interpreting procedure kzalloc with input of size 518 for LOIs [2021-11-23 02:20:41,538 INFO L197 IcfgInterpreter]: Interpreting procedure kmalloc with input of size 350 for LOIs [2021-11-23 02:20:45,948 INFO L197 IcfgInterpreter]: Interpreting procedure node_remove with input of size 210 for LOIs [2021-11-23 02:20:47,654 INFO L197 IcfgInterpreter]: Interpreting procedure fdtv_dvb_unregister with input of size 392 for LOIs [2021-11-23 02:20:49,201 INFO L197 IcfgInterpreter]: Interpreting procedure ##fun~$Pointer$~TO~int with input of size 221 for LOIs [2021-11-23 02:20:49,832 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-23 02:20:49,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 21 [2021-11-23 02:20:49,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 11 [2021-11-23 02:20:54,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 49 treesize of output 1 [2021-11-23 02:20:54,804 INFO L354 Elim1Store]: treesize reduction 65, result has 12.2 percent of original size [2021-11-23 02:20:54,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 34 [2021-11-23 02:20:54,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 49 treesize of output 1 [2021-11-23 02:20:54,878 INFO L354 Elim1Store]: treesize reduction 74, result has 14.0 percent of original size [2021-11-23 02:20:54,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2021-11-23 02:20:54,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 49 treesize of output 1 [2021-11-23 02:20:54,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 49 treesize of output 1 [2021-11-23 02:20:54,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:20:54,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 1 [2021-11-23 02:20:54,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 1 [2021-11-23 02:20:55,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 58 treesize of output 40 [2021-11-23 02:20:55,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 40 treesize of output 22 [2021-11-23 02:20:55,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 58 treesize of output 40 [2021-11-23 02:20:55,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 40 treesize of output 22 [2021-11-23 02:20:56,914 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:20:56,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 123 [2021-11-23 02:20:57,597 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:20:57,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 123 [2021-11-23 02:21:00,427 INFO L197 IcfgInterpreter]: Interpreting procedure collect_channels with input of size 283 for LOIs [2021-11-23 02:21:02,555 INFO L354 Elim1Store]: treesize reduction 74, result has 14.0 percent of original size [2021-11-23 02:21:02,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2021-11-23 02:21:02,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 49 treesize of output 1 [2021-11-23 02:21:02,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 49 treesize of output 1 [2021-11-23 02:21:02,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:21:02,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 1 [2021-11-23 02:21:02,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 1 [2021-11-23 02:21:03,918 INFO L197 IcfgInterpreter]: Interpreting procedure variable_test_bit with input of size 270 for LOIs [2021-11-23 02:21:03,981 INFO L197 IcfgInterpreter]: Interpreting procedure avc_tuner_set_pids with input of size 315 for LOIs [2021-11-23 02:21:04,572 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_mutex_lock_interruptible_demux_mutex_of_firedtv with input of size 342 for LOIs [2021-11-23 02:21:05,768 INFO L197 IcfgInterpreter]: Interpreting procedure dealloc_channel with input of size 291 for LOIs [2021-11-23 02:21:05,925 INFO L197 IcfgInterpreter]: Interpreting procedure mutex_lock_interruptible with input of size 333 for LOIs [2021-11-23 02:21:06,135 INFO L197 IcfgInterpreter]: Interpreting procedure kfree with input of size 262 for LOIs [2021-11-23 02:21:06,233 INFO L197 IcfgInterpreter]: Interpreting procedure dev_get_drvdata with input of size 195 for LOIs [2021-11-23 02:21:06,780 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 350 for LOIs [2021-11-23 02:21:07,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 9 [2021-11-23 02:21:07,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 02:21:07,305 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_mutex_unlock_demux_mutex_of_firedtv with input of size 268 for LOIs [2021-11-23 02:21:07,494 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_error with input of size 268 for LOIs [2021-11-23 02:21:07,554 INFO L197 IcfgInterpreter]: Interpreting procedure dvb_net_release with input of size 377 for LOIs [2021-11-23 02:21:07,714 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:22:14,448 WARN L227 SmtUtils]: Spent 10.78s on a formula simplification. DAG size of input: 518 DAG size of output: 436 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:22:25,629 WARN L227 SmtUtils]: Spent 9.88s on a formula simplification. DAG size of input: 522 DAG size of output: 440 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:23:05,453 WARN L227 SmtUtils]: Spent 15.30s on a formula simplification. DAG size of input: 347 DAG size of output: 324 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:23:15,786 WARN L227 SmtUtils]: Spent 8.96s on a formula simplification. DAG size of input: 434 DAG size of output: 345 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:23:26,317 WARN L227 SmtUtils]: Spent 9.04s on a formula simplification. DAG size of input: 446 DAG size of output: 357 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:23:44,061 WARN L227 SmtUtils]: Spent 16.58s on a formula simplification. DAG size of input: 388 DAG size of output: 354 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)