./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.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_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/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_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/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_4f6a1da2-f498-416c-935d-c609d62ee437/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 6037d9c0da39b47219c2a722405991c574e168b5c260e77abe20cfd9849699bc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:50:29,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:50:29,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:50:29,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:50:29,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:50:29,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:50:29,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:50:29,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:50:29,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:50:29,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:50:29,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:50:29,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:50:29,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:50:29,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:50:29,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:50:29,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:50:29,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:50:29,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:50:29,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:50:29,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:50:29,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:50:29,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:50:29,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:50:29,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:50:29,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:50:29,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:50:29,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:50:29,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:50:29,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:50:29,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:50:29,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:50:29,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:50:29,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:50:29,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:50:29,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:50:29,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:50:29,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:50:29,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:50:29,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:50:29,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:50:29,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:50:29,615 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 01:50:29,660 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:50:29,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:50:29,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:50:29,664 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:50:29,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:50:29,671 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 01:50:29,672 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 01:50:29,672 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 01:50:29,672 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 01:50:29,673 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 01:50:29,674 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 01:50:29,674 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 01:50:29,674 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 01:50:29,674 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 01:50:29,675 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 01:50:29,675 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 01:50:29,675 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 01:50:29,675 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 01:50:29,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:50:29,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:50:29,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:50:29,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:50:29,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:50:29,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:50:29,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:50:29,678 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:50:29,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:50:29,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:50:29,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:50:29,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:50:29,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:50:29,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:50:29,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:50:29,680 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 01:50:29,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:50:29,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:50:29,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:50:29,681 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 01:50:29,681 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_4f6a1da2-f498-416c-935d-c609d62ee437/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6037d9c0da39b47219c2a722405991c574e168b5c260e77abe20cfd9849699bc [2021-11-23 01:50:29,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:50:29,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:50:29,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:50:29,998 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:50:29,999 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:50:30,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i [2021-11-23 01:50:30,110 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/data/328a364e4/52f2e877dacb4fc38a60e2268d6e4e66/FLAGa0f432e74 [2021-11-23 01:50:30,949 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:50:30,950 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i [2021-11-23 01:50:30,995 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/data/328a364e4/52f2e877dacb4fc38a60e2268d6e4e66/FLAGa0f432e74 [2021-11-23 01:50:31,439 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/data/328a364e4/52f2e877dacb4fc38a60e2268d6e4e66 [2021-11-23 01:50:31,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:50:31,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:50:31,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:50:31,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:50:31,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:50:31,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:50:31" (1/1) ... [2021-11-23 01:50:31,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bdbfb1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:31, skipping insertion in model container [2021-11-23 01:50:31,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:50:31" (1/1) ... [2021-11-23 01:50:31,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:50:31,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:50:32,587 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_4f6a1da2-f498-416c-935d-c609d62ee437/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i[158583,158596] [2021-11-23 01:50:33,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:50:33,465 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:50:33,644 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_4f6a1da2-f498-416c-935d-c609d62ee437/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i[158583,158596] [2021-11-23 01:50:33,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:50:33,983 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:50:33,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:33 WrapperNode [2021-11-23 01:50:33,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:50:33,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:50:33,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:50:33,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:50:33,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:33" (1/1) ... [2021-11-23 01:50:34,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:33" (1/1) ... [2021-11-23 01:50:34,252 INFO L137 Inliner]: procedures = 220, calls = 1799, calls flagged for inlining = 81, calls inlined = 72, statements flattened = 3206 [2021-11-23 01:50:34,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:50:34,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:50:34,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:50:34,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:50:34,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:33" (1/1) ... [2021-11-23 01:50:34,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:33" (1/1) ... [2021-11-23 01:50:34,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:33" (1/1) ... [2021-11-23 01:50:34,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:33" (1/1) ... [2021-11-23 01:50:34,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:33" (1/1) ... [2021-11-23 01:50:34,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:33" (1/1) ... [2021-11-23 01:50:34,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:33" (1/1) ... [2021-11-23 01:50:34,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:50:34,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:50:34,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:50:34,488 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:50:34,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:33" (1/1) ... [2021-11-23 01:50:34,497 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:50:34,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:50:34,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 01:50:34,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 01:50:34,571 INFO L130 BoogieDeclarations]: Found specification of procedure nla_get_u32 [2021-11-23 01:50:34,571 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_get_u32 [2021-11-23 01:50:34,572 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_xmit [2021-11-23 01:50:34,572 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_xmit [2021-11-23 01:50:34,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 01:50:34,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 01:50:34,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 01:50:34,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 01:50:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_u32 [2021-11-23 01:50:34,573 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_u32 [2021-11-23 01:50:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_start_tx [2021-11-23 01:50:34,573 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_start_tx [2021-11-23 01:50:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 01:50:34,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 01:50:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-23 01:50:34,574 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-23 01:50:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_bits [2021-11-23 01:50:34,574 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_bits [2021-11-23 01:50:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-23 01:50:34,574 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-23 01:50:34,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-11-23 01:50:34,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-11-23 01:50:34,575 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-11-23 01:50:34,575 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-11-23 01:50:34,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 01:50:34,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 01:50:34,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2021-11-23 01:50:34,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2021-11-23 01:50:34,576 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-23 01:50:34,576 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-23 01:50:34,576 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2021-11-23 01:50:34,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2021-11-23 01:50:34,577 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 01:50:34,577 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 01:50:34,577 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-23 01:50:34,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-23 01:50:34,577 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 01:50:34,578 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 01:50:34,578 INFO L130 BoogieDeclarations]: Found specification of procedure caif_hsi_fill_info [2021-11-23 01:50:34,578 INFO L138 BoogieDeclarations]: Found implementation of procedure caif_hsi_fill_info [2021-11-23 01:50:34,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:50:34,579 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 01:50:34,579 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 01:50:34,579 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_rx_desc [2021-11-23 01:50:34,579 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_rx_desc [2021-11-23 01:50:34,579 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_update_aggregation_stats [2021-11-23 01:50:34,580 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_update_aggregation_stats [2021-11-23 01:50:34,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:50:34,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-11-23 01:50:34,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-11-23 01:50:34,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:50:34,582 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_tx_frm [2021-11-23 01:50:34,583 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_tx_frm [2021-11-23 01:50:34,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 01:50:34,584 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-23 01:50:34,584 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-23 01:50:34,584 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_dequeue [2021-11-23 01:50:34,584 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_dequeue [2021-11-23 01:50:34,584 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 01:50:34,585 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 01:50:34,585 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-23 01:50:34,585 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-23 01:50:34,585 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-23 01:50:34,585 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-23 01:50:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_rx_desc_len [2021-11-23 01:50:34,586 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_rx_desc_len [2021-11-23 01:50:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 01:50:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 01:50:34,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 01:50:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_tx_queue_len [2021-11-23 01:50:34,587 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_tx_queue_len [2021-11-23 01:50:34,587 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 01:50:34,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 01:50:34,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 01:50:34,588 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2021-11-23 01:50:34,588 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2021-11-23 01:50:34,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:50:34,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_21 [2021-11-23 01:50:34,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_21 [2021-11-23 01:50:34,589 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-23 01:50:34,589 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-23 01:50:34,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 01:50:34,589 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 01:50:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2021-11-23 01:50:34,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2021-11-23 01:50:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 01:50:34,591 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 01:50:34,591 INFO L130 BoogieDeclarations]: Found specification of procedure caif_hsi_get_size [2021-11-23 01:50:34,591 INFO L138 BoogieDeclarations]: Found implementation of procedure caif_hsi_get_size [2021-11-23 01:50:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_netlink_parms [2021-11-23 01:50:34,592 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_netlink_parms [2021-11-23 01:50:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-23 01:50:34,592 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-23 01:50:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 01:50:34,593 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 01:50:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:50:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 01:50:34,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 01:50:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:50:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-11-23 01:50:34,594 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-11-23 01:50:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-23 01:50:34,595 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-23 01:50:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2021-11-23 01:50:34,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2021-11-23 01:50:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:50:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-23 01:50:34,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-23 01:50:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure caif_hsi_changelink [2021-11-23 01:50:34,596 INFO L138 BoogieDeclarations]: Found implementation of procedure caif_hsi_changelink [2021-11-23 01:50:34,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:50:34,597 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 01:50:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-11-23 01:50:34,600 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-11-23 01:50:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 01:50:34,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 01:50:34,601 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-23 01:50:34,602 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-23 01:50:34,603 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_open [2021-11-23 01:50:34,603 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_open [2021-11-23 01:50:34,603 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_rx_done [2021-11-23 01:50:34,610 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_rx_done [2021-11-23 01:50:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-23 01:50:34,611 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-23 01:50:34,611 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2021-11-23 01:50:34,611 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2021-11-23 01:50:34,611 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-23 01:50:34,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-23 01:50:34,611 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_can_send_aggregate [2021-11-23 01:50:34,611 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_can_send_aggregate [2021-11-23 01:50:34,612 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 01:50:34,612 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 01:50:34,612 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-23 01:50:34,612 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-23 01:50:34,612 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 01:50:34,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 01:50:34,613 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-23 01:50:34,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-23 01:50:34,613 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-23 01:50:34,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-23 01:50:34,613 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-23 01:50:34,613 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-23 01:50:34,613 INFO L130 BoogieDeclarations]: Found specification of procedure caif_hsi_newlink [2021-11-23 01:50:34,614 INFO L138 BoogieDeclarations]: Found implementation of procedure caif_hsi_newlink [2021-11-23 01:50:34,614 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-23 01:50:34,614 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-23 01:50:34,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:50:34,614 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-11-23 01:50:34,614 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-11-23 01:50:34,615 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_close [2021-11-23 01:50:34,615 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_close [2021-11-23 01:50:34,615 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-11-23 01:50:34,615 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-11-23 01:50:34,615 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_abort_tx [2021-11-23 01:50:34,615 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_abort_tx [2021-11-23 01:50:34,615 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-23 01:50:34,616 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-23 01:50:34,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:50:34,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:50:34,616 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-23 01:50:34,616 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-23 01:50:34,616 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-23 01:50:34,616 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-23 01:50:35,275 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:50:35,279 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:50:35,690 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 01:50:39,375 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:50:39,974 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:50:39,974 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 01:50:39,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:50:39 BoogieIcfgContainer [2021-11-23 01:50:39,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:50:39,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 01:50:39,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 01:50:39,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 01:50:39,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:50:31" (1/3) ... [2021-11-23 01:50:39,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9af46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:50:39, skipping insertion in model container [2021-11-23 01:50:39,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:33" (2/3) ... [2021-11-23 01:50:39,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9af46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:50:39, skipping insertion in model container [2021-11-23 01:50:39,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:50:39" (3/3) ... [2021-11-23 01:50:39,991 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i [2021-11-23 01:50:40,006 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 01:50:40,007 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 01:50:40,070 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 01:50:40,077 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 01:50:40,078 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 01:50:40,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 861 states, 532 states have (on average 1.3345864661654134) internal successors, (710), 551 states have internal predecessors, (710), 255 states have call successors, (255), 73 states have call predecessors, (255), 72 states have return successors, (251), 251 states have call predecessors, (251), 251 states have call successors, (251) [2021-11-23 01:50:40,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 01:50:40,166 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:50:40,167 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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 01:50:40,167 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:50:40,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:50:40,173 INFO L85 PathProgramCache]: Analyzing trace with hash -861771868, now seen corresponding path program 1 times [2021-11-23 01:50:40,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:50:40,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170306370] [2021-11-23 01:50:40,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:50:40,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:40,772 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:50:40,773 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:50:40,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170306370] [2021-11-23 01:50:40,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170306370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:50:40,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:50:40,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:50:40,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252703692] [2021-11-23 01:50:40,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:50:40,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:50:40,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:50:40,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:50:40,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:50:40,835 INFO L87 Difference]: Start difference. First operand has 861 states, 532 states have (on average 1.3345864661654134) internal successors, (710), 551 states have internal predecessors, (710), 255 states have call successors, (255), 73 states have call predecessors, (255), 72 states have return successors, (251), 251 states have call predecessors, (251), 251 states have call successors, (251) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 01:50:43,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:50:43,812 INFO L93 Difference]: Finished difference Result 2564 states and 3744 transitions. [2021-11-23 01:50:43,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:50:43,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2021-11-23 01:50:43,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:50:43,900 INFO L225 Difference]: With dead ends: 2564 [2021-11-23 01:50:43,900 INFO L226 Difference]: Without dead ends: 1685 [2021-11-23 01:50:43,927 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 01:50:43,931 INFO L933 BasicCegarLoop]: 1351 mSDtfsCounter, 1196 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 3793 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-23 01:50:43,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1196 Valid, 3793 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-23 01:50:43,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2021-11-23 01:50:44,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1681. [2021-11-23 01:50:44,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1681 states, 1044 states have (on average 1.3199233716475096) internal successors, (1378), 1070 states have internal predecessors, (1378), 496 states have call successors, (496), 141 states have call predecessors, (496), 140 states have return successors, (535), 495 states have call predecessors, (535), 495 states have call successors, (535) [2021-11-23 01:50:44,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 2409 transitions. [2021-11-23 01:50:44,363 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 2409 transitions. Word has length 33 [2021-11-23 01:50:44,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:50:44,364 INFO L470 AbstractCegarLoop]: Abstraction has 1681 states and 2409 transitions. [2021-11-23 01:50:44,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 01:50:44,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 2409 transitions. [2021-11-23 01:50:44,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-23 01:50:44,394 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:50:44,395 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-23 01:50:44,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 01:50:44,396 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:50:44,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:50:44,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1538916320, now seen corresponding path program 1 times [2021-11-23 01:50:44,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:50:44,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537761897] [2021-11-23 01:50:44,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:50:44,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:44,720 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 01:50:44,720 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:50:44,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537761897] [2021-11-23 01:50:44,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537761897] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:50:44,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:50:44,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 01:50:44,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785842201] [2021-11-23 01:50:44,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:50:44,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:50:44,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:50:44,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:50:44,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:50:44,732 INFO L87 Difference]: Start difference. First operand 1681 states and 2409 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 01:50:46,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:50:46,682 INFO L93 Difference]: Finished difference Result 4405 states and 6293 transitions. [2021-11-23 01:50:46,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:50:46,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 120 [2021-11-23 01:50:46,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:50:46,710 INFO L225 Difference]: With dead ends: 4405 [2021-11-23 01:50:46,710 INFO L226 Difference]: Without dead ends: 2731 [2021-11-23 01:50:46,721 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 01:50:46,723 INFO L933 BasicCegarLoop]: 1185 mSDtfsCounter, 741 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-23 01:50:46,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [741 Valid, 2218 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-23 01:50:46,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2021-11-23 01:50:46,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 2717. [2021-11-23 01:50:46,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 1726 states have (on average 1.3354577056778678) internal successors, (2305), 1766 states have internal predecessors, (2305), 756 states have call successors, (756), 235 states have call predecessors, (756), 234 states have return successors, (817), 755 states have call predecessors, (817), 755 states have call successors, (817) [2021-11-23 01:50:46,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 3878 transitions. [2021-11-23 01:50:46,977 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 3878 transitions. Word has length 120 [2021-11-23 01:50:46,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:50:46,979 INFO L470 AbstractCegarLoop]: Abstraction has 2717 states and 3878 transitions. [2021-11-23 01:50:46,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 01:50:46,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 3878 transitions. [2021-11-23 01:50:46,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-23 01:50:46,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:50:46,991 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2021-11-23 01:50:46,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 01:50:46,991 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:50:46,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:50:46,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1537761383, now seen corresponding path program 1 times [2021-11-23 01:50:46,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:50:46,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328034810] [2021-11-23 01:50:46,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:50:46,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:47,320 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-23 01:50:47,320 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:50:47,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328034810] [2021-11-23 01:50:47,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328034810] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:50:47,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:50:47,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 01:50:47,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546061288] [2021-11-23 01:50:47,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:50:47,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 01:50:47,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:50:47,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 01:50:47,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:50:47,329 INFO L87 Difference]: Start difference. First operand 2717 states and 3878 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 01:50:51,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:50:53,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:50:53,223 INFO L93 Difference]: Finished difference Result 5451 states and 7926 transitions. [2021-11-23 01:50:53,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 01:50:53,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 106 [2021-11-23 01:50:53,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:50:53,251 INFO L225 Difference]: With dead ends: 5451 [2021-11-23 01:50:53,251 INFO L226 Difference]: Without dead ends: 2741 [2021-11-23 01:50:53,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:50:53,274 INFO L933 BasicCegarLoop]: 1053 mSDtfsCounter, 2 mSDsluCounter, 3592 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4207 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-23 01:50:53,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 4207 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 594 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2021-11-23 01:50:53,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2021-11-23 01:50:53,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 2737. [2021-11-23 01:50:53,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2737 states, 1740 states have (on average 1.3327586206896551) internal successors, (2319), 1782 states have internal predecessors, (2319), 756 states have call successors, (756), 235 states have call predecessors, (756), 240 states have return successors, (838), 759 states have call predecessors, (838), 755 states have call successors, (838) [2021-11-23 01:50:53,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2737 states to 2737 states and 3913 transitions. [2021-11-23 01:50:53,471 INFO L78 Accepts]: Start accepts. Automaton has 2737 states and 3913 transitions. Word has length 106 [2021-11-23 01:50:53,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:50:53,472 INFO L470 AbstractCegarLoop]: Abstraction has 2737 states and 3913 transitions. [2021-11-23 01:50:53,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 01:50:53,473 INFO L276 IsEmpty]: Start isEmpty. Operand 2737 states and 3913 transitions. [2021-11-23 01:50:53,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-23 01:50:53,480 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:50:53,480 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2021-11-23 01:50:53,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 01:50:53,481 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:50:53,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:50:53,482 INFO L85 PathProgramCache]: Analyzing trace with hash 96208469, now seen corresponding path program 1 times [2021-11-23 01:50:53,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:50:53,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731606340] [2021-11-23 01:50:53,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:50:53,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:50:53,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:50:53,695 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 01:50:53,695 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:50:53,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731606340] [2021-11-23 01:50:53,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731606340] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:50:53,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:50:53,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 01:50:53,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374919433] [2021-11-23 01:50:53,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:50:53,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 01:50:53,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:50:53,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 01:50:53,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:50:53,698 INFO L87 Difference]: Start difference. First operand 2737 states and 3913 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 01:50:57,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:50:59,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:51:01,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:51:01,303 INFO L93 Difference]: Finished difference Result 5511 states and 7947 transitions. [2021-11-23 01:51:01,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 01:51:01,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 110 [2021-11-23 01:51:01,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:51:01,330 INFO L225 Difference]: With dead ends: 5511 [2021-11-23 01:51:01,330 INFO L226 Difference]: Without dead ends: 2781 [2021-11-23 01:51:01,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 01:51:01,350 INFO L933 BasicCegarLoop]: 1060 mSDtfsCounter, 12 mSDsluCounter, 3595 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4219 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-23 01:51:01,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 4219 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 594 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2021-11-23 01:51:01,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2021-11-23 01:51:01,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 2753. [2021-11-23 01:51:01,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2753 states, 1752 states have (on average 1.3304794520547945) internal successors, (2331), 1794 states have internal predecessors, (2331), 756 states have call successors, (756), 235 states have call predecessors, (756), 244 states have return successors, (847), 763 states have call predecessors, (847), 755 states have call successors, (847) [2021-11-23 01:51:01,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2753 states to 2753 states and 3934 transitions. [2021-11-23 01:51:01,576 INFO L78 Accepts]: Start accepts. Automaton has 2753 states and 3934 transitions. Word has length 110 [2021-11-23 01:51:01,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:51:01,579 INFO L470 AbstractCegarLoop]: Abstraction has 2753 states and 3934 transitions. [2021-11-23 01:51:01,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 01:51:01,579 INFO L276 IsEmpty]: Start isEmpty. Operand 2753 states and 3934 transitions. [2021-11-23 01:51:01,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-23 01:51:01,587 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:51:01,588 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2021-11-23 01:51:01,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 01:51:01,588 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:51:01,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:51:01,589 INFO L85 PathProgramCache]: Analyzing trace with hash -202510146, now seen corresponding path program 1 times [2021-11-23 01:51:01,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:51:01,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330620001] [2021-11-23 01:51:01,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:51:01,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:01,768 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-23 01:51:01,768 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:51:01,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330620001] [2021-11-23 01:51:01,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330620001] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:51:01,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:51:01,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 01:51:01,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123833333] [2021-11-23 01:51:01,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:51:01,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:51:01,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:51:01,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:51:01,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:51:01,770 INFO L87 Difference]: Start difference. First operand 2753 states and 3934 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-23 01:51:03,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:51:03,674 INFO L93 Difference]: Finished difference Result 5503 states and 7929 transitions. [2021-11-23 01:51:03,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:51:03,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 116 [2021-11-23 01:51:03,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:51:03,698 INFO L225 Difference]: With dead ends: 5503 [2021-11-23 01:51:03,699 INFO L226 Difference]: Without dead ends: 2757 [2021-11-23 01:51:03,714 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 01:51:03,715 INFO L933 BasicCegarLoop]: 1054 mSDtfsCounter, 0 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-23 01:51:03,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2107 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-23 01:51:03,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2021-11-23 01:51:03,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 2757. [2021-11-23 01:51:03,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2757 states, 1756 states have (on average 1.3297266514806378) internal successors, (2335), 1798 states have internal predecessors, (2335), 756 states have call successors, (756), 235 states have call predecessors, (756), 244 states have return successors, (847), 763 states have call predecessors, (847), 755 states have call successors, (847) [2021-11-23 01:51:03,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2757 states to 2757 states and 3938 transitions. [2021-11-23 01:51:03,897 INFO L78 Accepts]: Start accepts. Automaton has 2757 states and 3938 transitions. Word has length 116 [2021-11-23 01:51:03,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:51:03,898 INFO L470 AbstractCegarLoop]: Abstraction has 2757 states and 3938 transitions. [2021-11-23 01:51:03,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-23 01:51:03,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2757 states and 3938 transitions. [2021-11-23 01:51:03,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-23 01:51:03,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:51:03,907 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2021-11-23 01:51:03,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 01:51:03,907 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:51:03,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:51:03,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1600711198, now seen corresponding path program 1 times [2021-11-23 01:51:03,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:51:03,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624094241] [2021-11-23 01:51:03,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:51:03,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:04,087 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-23 01:51:04,088 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:51:04,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624094241] [2021-11-23 01:51:04,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624094241] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 01:51:04,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924736189] [2021-11-23 01:51:04,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:51:04,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:51:04,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:51:04,094 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 01:51:04,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 01:51:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:04,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 2437 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 01:51:04,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:05,090 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-23 01:51:05,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 01:51:05,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924736189] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:51:05,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 01:51:05,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-23 01:51:05,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136435214] [2021-11-23 01:51:05,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:51:05,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:51:05,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:51:05,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:51:05,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:51:05,093 INFO L87 Difference]: Start difference. First operand 2757 states and 3938 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2021-11-23 01:51:06,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:51:06,897 INFO L93 Difference]: Finished difference Result 5603 states and 8080 transitions. [2021-11-23 01:51:06,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:51:06,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 118 [2021-11-23 01:51:06,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:51:06,922 INFO L225 Difference]: With dead ends: 5603 [2021-11-23 01:51:06,922 INFO L226 Difference]: Without dead ends: 2853 [2021-11-23 01:51:06,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:51:06,937 INFO L933 BasicCegarLoop]: 1086 mSDtfsCounter, 12 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2146 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-23 01:51:06,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 2146 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-23 01:51:06,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2021-11-23 01:51:07,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 2761. [2021-11-23 01:51:07,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2761 states, 1760 states have (on average 1.3289772727272726) internal successors, (2339), 1802 states have internal predecessors, (2339), 756 states have call successors, (756), 235 states have call predecessors, (756), 244 states have return successors, (847), 763 states have call predecessors, (847), 755 states have call successors, (847) [2021-11-23 01:51:07,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2761 states to 2761 states and 3942 transitions. [2021-11-23 01:51:07,138 INFO L78 Accepts]: Start accepts. Automaton has 2761 states and 3942 transitions. Word has length 118 [2021-11-23 01:51:07,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:51:07,139 INFO L470 AbstractCegarLoop]: Abstraction has 2761 states and 3942 transitions. [2021-11-23 01:51:07,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2021-11-23 01:51:07,141 INFO L276 IsEmpty]: Start isEmpty. Operand 2761 states and 3942 transitions. [2021-11-23 01:51:07,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-23 01:51:07,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:51:07,153 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 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 01:51:07,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 01:51:07,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-23 01:51:07,378 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:51:07,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:51:07,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1674448865, now seen corresponding path program 1 times [2021-11-23 01:51:07,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:51:07,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988621129] [2021-11-23 01:51:07,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:51:07,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:07,530 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-23 01:51:07,530 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:51:07,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988621129] [2021-11-23 01:51:07,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988621129] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 01:51:07,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406225096] [2021-11-23 01:51:07,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:51:07,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:51:07,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:51:07,532 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 01:51:07,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 01:51:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:08,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 2494 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 01:51:08,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:08,481 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 01:51:08,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 01:51:08,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406225096] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:51:08,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 01:51:08,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-11-23 01:51:08,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354022247] [2021-11-23 01:51:08,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:51:08,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:51:08,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:51:08,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:51:08,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:51:08,484 INFO L87 Difference]: Start difference. First operand 2761 states and 3942 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-23 01:51:10,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:51:11,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:51:11,283 INFO L93 Difference]: Finished difference Result 5523 states and 7956 transitions. [2021-11-23 01:51:11,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:51:11,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 128 [2021-11-23 01:51:11,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:51:11,305 INFO L225 Difference]: With dead ends: 5523 [2021-11-23 01:51:11,305 INFO L226 Difference]: Without dead ends: 2769 [2021-11-23 01:51:11,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:51:11,321 INFO L933 BasicCegarLoop]: 1051 mSDtfsCounter, 18 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 2070 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-23 01:51:11,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 2070 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-23 01:51:11,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2021-11-23 01:51:11,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2769. [2021-11-23 01:51:11,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 1768 states have (on average 1.3274886877828054) internal successors, (2347), 1810 states have internal predecessors, (2347), 756 states have call successors, (756), 235 states have call predecessors, (756), 244 states have return successors, (847), 763 states have call predecessors, (847), 755 states have call successors, (847) [2021-11-23 01:51:11,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 3950 transitions. [2021-11-23 01:51:11,509 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 3950 transitions. Word has length 128 [2021-11-23 01:51:11,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:51:11,511 INFO L470 AbstractCegarLoop]: Abstraction has 2769 states and 3950 transitions. [2021-11-23 01:51:11,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-23 01:51:11,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 3950 transitions. [2021-11-23 01:51:11,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-23 01:51:11,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:51:11,521 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 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 01:51:11,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 01:51:11,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-23 01:51:11,734 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:51:11,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:51:11,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1154243344, now seen corresponding path program 1 times [2021-11-23 01:51:11,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:51:11,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285620174] [2021-11-23 01:51:11,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:51:11,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:11,902 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-23 01:51:11,903 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:51:11,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285620174] [2021-11-23 01:51:11,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285620174] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 01:51:11,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49883467] [2021-11-23 01:51:11,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:51:11,904 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:51:11,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:51:11,906 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 01:51:11,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 01:51:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:12,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 2506 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 01:51:12,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:12,842 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-23 01:51:12,842 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 01:51:12,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49883467] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:51:12,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 01:51:12,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-11-23 01:51:12,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628227057] [2021-11-23 01:51:12,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:51:12,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:51:12,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:51:12,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:51:12,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:51:12,845 INFO L87 Difference]: Start difference. First operand 2769 states and 3950 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 01:51:14,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:51:14,317 INFO L93 Difference]: Finished difference Result 5555 states and 8032 transitions. [2021-11-23 01:51:14,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:51:14,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 132 [2021-11-23 01:51:14,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:51:14,341 INFO L225 Difference]: With dead ends: 5555 [2021-11-23 01:51:14,341 INFO L226 Difference]: Without dead ends: 2793 [2021-11-23 01:51:14,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 132 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 01:51:14,358 INFO L933 BasicCegarLoop]: 1054 mSDtfsCounter, 4 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2105 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-23 01:51:14,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 2105 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-23 01:51:14,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2021-11-23 01:51:14,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2773. [2021-11-23 01:51:14,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2773 states, 1772 states have (on average 1.3267494356659142) internal successors, (2351), 1814 states have internal predecessors, (2351), 756 states have call successors, (756), 235 states have call predecessors, (756), 244 states have return successors, (847), 763 states have call predecessors, (847), 755 states have call successors, (847) [2021-11-23 01:51:14,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2773 states to 2773 states and 3954 transitions. [2021-11-23 01:51:14,573 INFO L78 Accepts]: Start accepts. Automaton has 2773 states and 3954 transitions. Word has length 132 [2021-11-23 01:51:14,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:51:14,574 INFO L470 AbstractCegarLoop]: Abstraction has 2773 states and 3954 transitions. [2021-11-23 01:51:14,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 01:51:14,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2773 states and 3954 transitions. [2021-11-23 01:51:14,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-23 01:51:14,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:51:14,590 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:51:14,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 01:51:14,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:51:14,814 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:51:14,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:51:14,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1037705211, now seen corresponding path program 1 times [2021-11-23 01:51:14,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:51:14,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438990791] [2021-11-23 01:51:14,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:51:14,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:15,130 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 01:51:15,130 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:51:15,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438990791] [2021-11-23 01:51:15,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438990791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:51:15,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:51:15,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-23 01:51:15,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326504741] [2021-11-23 01:51:15,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:51:15,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 01:51:15,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:51:15,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 01:51:15,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-23 01:51:15,133 INFO L87 Difference]: Start difference. First operand 2773 states and 3954 transitions. Second operand has 10 states, 10 states have (on average 8.8) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 5 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 01:51:18,194 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 01:51:19,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:51:21,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:51:23,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:51:27,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:51:27,336 INFO L93 Difference]: Finished difference Result 5567 states and 7985 transitions. [2021-11-23 01:51:27,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 01:51:27,336 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 5 states have call predecessors, (19), 2 states have call successors, (19) Word has length 139 [2021-11-23 01:51:27,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:51:27,359 INFO L225 Difference]: With dead ends: 5567 [2021-11-23 01:51:27,359 INFO L226 Difference]: Without dead ends: 2801 [2021-11-23 01:51:27,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-23 01:51:27,378 INFO L933 BasicCegarLoop]: 1060 mSDtfsCounter, 20 mSDsluCounter, 9610 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 9515 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2021-11-23 01:51:27,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 9515 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1376 Invalid, 1 Unknown, 0 Unchecked, 12.0s Time] [2021-11-23 01:51:27,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2021-11-23 01:51:27,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2793. [2021-11-23 01:51:27,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 1786 states have (on average 1.3241881298992162) internal successors, (2365), 1828 states have internal predecessors, (2365), 758 states have call successors, (758), 235 states have call predecessors, (758), 248 states have return successors, (857), 769 states have call predecessors, (857), 757 states have call successors, (857) [2021-11-23 01:51:27,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 3980 transitions. [2021-11-23 01:51:27,548 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 3980 transitions. Word has length 139 [2021-11-23 01:51:27,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:51:27,549 INFO L470 AbstractCegarLoop]: Abstraction has 2793 states and 3980 transitions. [2021-11-23 01:51:27,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 5 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 01:51:27,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 3980 transitions. [2021-11-23 01:51:27,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-23 01:51:27,559 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:51:27,560 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2021-11-23 01:51:27,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 01:51:27,560 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:51:27,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:51:27,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1544704337, now seen corresponding path program 1 times [2021-11-23 01:51:27,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:51:27,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242391518] [2021-11-23 01:51:27,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:51:27,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:27,705 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-23 01:51:27,705 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:51:27,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242391518] [2021-11-23 01:51:27,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242391518] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 01:51:27,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481539893] [2021-11-23 01:51:27,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:51:27,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:51:27,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:51:27,708 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 01:51:27,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 01:51:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:51:28,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 2519 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 01:51:28,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:51:28,663 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-23 01:51:28,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 01:51:29,130 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-23 01:51:29,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481539893] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 01:51:29,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [955819697] [2021-11-23 01:51:29,161 INFO L159 IcfgInterpreter]: Started Sifa with 105 locations of interest [2021-11-23 01:51:29,162 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 01:51:29,169 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 01:51:29,176 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 01:51:29,177 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 01:51:32,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 740 treesize of output 590 [2021-11-23 01:51:32,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 740 treesize of output 590 [2021-11-23 01:51:35,693 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 01:51:35,700 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 01:51:35,706 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 7 treesize of output 6 [2021-11-23 01:51:38,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:38,976 INFO L244 Elim1Store]: Index analysis took 319 ms [2021-11-23 01:51:39,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 166 select indices, 166 select index equivalence classes, 681 disjoint index pairs (out of 13695 index pairs), introduced 166 new quantified variables, introduced 0 case distinctions, treesize of input 1209 treesize of output 499 [2021-11-23 01:51:43,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:43,800 INFO L244 Elim1Store]: Index analysis took 252 ms [2021-11-23 01:51:43,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 166 select indices, 166 select index equivalence classes, 681 disjoint index pairs (out of 13695 index pairs), introduced 166 new quantified variables, introduced 0 case distinctions, treesize of input 1209 treesize of output 499 [2021-11-23 01:51:47,256 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 01:51:47,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 54 [2021-11-23 01:51:47,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2021-11-23 01:51:47,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 64 [2021-11-23 01:51:47,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 28 [2021-11-23 01:51:47,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-23 01:51:47,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 42 treesize of output 44 [2021-11-23 01:51:47,396 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 01:51:47,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,641 INFO L354 Elim1Store]: treesize reduction 312, result has 17.0 percent of original size [2021-11-23 01:51:47,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 22 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 111 [2021-11-23 01:51:47,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 53 [2021-11-23 01:51:47,731 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 01:51:47,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:47,873 INFO L354 Elim1Store]: treesize reduction 312, result has 17.0 percent of original size [2021-11-23 01:51:47,873 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 52 treesize of output 111 [2021-11-23 01:51:47,893 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 01:51:48,205 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 11 [2021-11-23 01:51:48,213 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 23 treesize of output 1 [2021-11-23 01:51:48,221 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 11 [2021-11-23 01:51:52,896 INFO L197 IcfgInterpreter]: Interpreting procedure ##fun~int~TO~VOID with input of size 221 for LOIs [2021-11-23 01:51:53,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 145 [2021-11-23 01:51:53,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,143 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:53,161 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 01:51:53,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 125 [2021-11-23 01:51:53,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:53,202 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 01:51:53,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 123 [2021-11-23 01:51:53,218 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 0 case distinctions, treesize of input 113 treesize of output 110 [2021-11-23 01:51:53,233 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 107 treesize of output 106 [2021-11-23 01:51:53,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 145 [2021-11-23 01:51:53,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,393 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:53,410 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 01:51:53,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 125 [2021-11-23 01:51:53,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,431 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:53,448 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 01:51:53,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 123 [2021-11-23 01:51:53,463 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 0 case distinctions, treesize of input 113 treesize of output 110 [2021-11-23 01:51:53,477 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 107 treesize of output 106 [2021-11-23 01:51:53,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 22 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 173 [2021-11-23 01:51:53,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,824 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:53,849 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 01:51:53,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 162 [2021-11-23 01:51:53,869 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 0 case distinctions, treesize of input 152 treesize of output 149 [2021-11-23 01:51:53,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:53,904 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:53,923 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 01:51:53,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 154 [2021-11-23 01:51:53,938 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 144 treesize of output 143 [2021-11-23 01:51:54,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 22 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 173 [2021-11-23 01:51:54,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,080 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:54,106 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 01:51:54,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 162 [2021-11-23 01:51:54,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,132 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:54,151 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 01:51:54,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 152 treesize of output 160 [2021-11-23 01:51:54,167 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 150 treesize of output 149 [2021-11-23 01:51:54,181 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 0 case distinctions, treesize of input 149 treesize of output 146 [2021-11-23 01:51:54,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 22 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 173 [2021-11-23 01:51:54,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,312 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:54,338 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 01:51:54,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 162 [2021-11-23 01:51:54,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,363 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:54,382 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 01:51:54,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 152 treesize of output 160 [2021-11-23 01:51:54,399 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 0 case distinctions, treesize of input 150 treesize of output 147 [2021-11-23 01:51:54,415 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 144 treesize of output 143 [2021-11-23 01:51:54,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 145 [2021-11-23 01:51:54,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,501 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:54,518 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 01:51:54,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 125 [2021-11-23 01:51:54,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:54,553 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 01:51:54,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 123 [2021-11-23 01:51:54,568 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 0 case distinctions, treesize of input 113 treesize of output 110 [2021-11-23 01:51:54,582 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 107 treesize of output 106 [2021-11-23 01:51:54,597 INFO L197 IcfgInterpreter]: Interpreting procedure cfhsi_start_tx with input of size 198 for LOIs [2021-11-23 01:51:54,869 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-23 01:51:54,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 16 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 219 treesize of output 241 [2021-11-23 01:51:54,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,904 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:54,967 INFO L354 Elim1Store]: treesize reduction 82, result has 31.7 percent of original size [2021-11-23 01:51:54,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 25 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 207 treesize of output 227 [2021-11-23 01:51:54,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:54,998 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:55,047 INFO L354 Elim1Store]: treesize reduction 82, result has 31.7 percent of original size [2021-11-23 01:51:55,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 225 [2021-11-23 01:51:55,082 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-23 01:51:55,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 203 treesize of output 203 [2021-11-23 01:51:55,115 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 01:51:55,116 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 1 case distinctions, treesize of input 197 treesize of output 199 [2021-11-23 01:51:55,311 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-23 01:51:55,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 16 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 219 treesize of output 241 [2021-11-23 01:51:55,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:55,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:55,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:55,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:55,346 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:55,395 INFO L354 Elim1Store]: treesize reduction 82, result has 31.7 percent of original size [2021-11-23 01:51:55,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 207 treesize of output 227 [2021-11-23 01:51:55,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:55,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:55,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:55,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:55,433 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:55,490 INFO L354 Elim1Store]: treesize reduction 82, result has 31.7 percent of original size [2021-11-23 01:51:55,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 25 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 225 [2021-11-23 01:51:55,528 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 01:51:55,529 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 1 case distinctions, treesize of input 203 treesize of output 205 [2021-11-23 01:51:55,566 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-23 01:51:55,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 202 treesize of output 202 [2021-11-23 01:51:55,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:55,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:55,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:55,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:55,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:55,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,038 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-23 01:51:56,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 22 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 258 treesize of output 271 [2021-11-23 01:51:56,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,076 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:56,138 INFO L354 Elim1Store]: treesize reduction 82, result has 31.7 percent of original size [2021-11-23 01:51:56,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 246 treesize of output 266 [2021-11-23 01:51:56,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,170 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:56,226 INFO L354 Elim1Store]: treesize reduction 82, result has 31.7 percent of original size [2021-11-23 01:51:56,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 25 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 244 treesize of output 264 [2021-11-23 01:51:56,266 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-23 01:51:56,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 242 treesize of output 242 [2021-11-23 01:51:56,297 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 01:51:56,297 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 1 case distinctions, treesize of input 236 treesize of output 238 [2021-11-23 01:51:56,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,540 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-23 01:51:56,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 22 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 258 treesize of output 271 [2021-11-23 01:51:56,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,568 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:56,653 INFO L354 Elim1Store]: treesize reduction 82, result has 31.7 percent of original size [2021-11-23 01:51:56,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 25 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 246 treesize of output 266 [2021-11-23 01:51:56,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:56,685 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:56,764 INFO L354 Elim1Store]: treesize reduction 82, result has 31.7 percent of original size [2021-11-23 01:51:56,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 244 treesize of output 264 [2021-11-23 01:51:56,804 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-23 01:51:56,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 242 treesize of output 242 [2021-11-23 01:51:56,843 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 01:51:56,844 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 1 case distinctions, treesize of input 236 treesize of output 238 [2021-11-23 01:51:57,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:57,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:57,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:57,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:57,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:57,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:57,376 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-23 01:51:57,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 22 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 336 treesize of output 313 [2021-11-23 01:51:57,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:57,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:57,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:57,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:57,404 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:57,578 INFO L354 Elim1Store]: treesize reduction 1642, result has 4.5 percent of original size [2021-11-23 01:51:57,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 324 treesize of output 347 [2021-11-23 01:51:57,626 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-23 01:51:57,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 322 treesize of output 322 [2021-11-23 01:51:57,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:57,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:57,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:57,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:57,686 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:57,834 INFO L354 Elim1Store]: treesize reduction 1642, result has 4.5 percent of original size [2021-11-23 01:51:57,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 25 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 316 treesize of output 339 [2021-11-23 01:51:57,866 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 01:51:57,866 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 1 case distinctions, treesize of input 314 treesize of output 316 [2021-11-23 01:51:58,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,056 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-23 01:51:58,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 22 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 336 treesize of output 313 [2021-11-23 01:51:58,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,086 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:58,269 INFO L354 Elim1Store]: treesize reduction 1642, result has 4.5 percent of original size [2021-11-23 01:51:58,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 25 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 324 treesize of output 347 [2021-11-23 01:51:58,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,300 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:58,426 INFO L354 Elim1Store]: treesize reduction 1642, result has 4.5 percent of original size [2021-11-23 01:51:58,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 322 treesize of output 345 [2021-11-23 01:51:58,460 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-23 01:51:58,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 320 treesize of output 320 [2021-11-23 01:51:58,493 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 01:51:58,494 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 1 case distinctions, treesize of input 314 treesize of output 316 [2021-11-23 01:51:58,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,681 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-23 01:51:58,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 22 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 274 treesize of output 287 [2021-11-23 01:51:58,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,708 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:58,831 INFO L354 Elim1Store]: treesize reduction 464, result has 9.2 percent of original size [2021-11-23 01:51:58,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 262 treesize of output 285 [2021-11-23 01:51:58,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:58,882 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:58,987 INFO L354 Elim1Store]: treesize reduction 464, result has 9.2 percent of original size [2021-11-23 01:51:58,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 25 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 260 treesize of output 283 [2021-11-23 01:51:59,019 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 01:51:59,019 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 1 case distinctions, treesize of input 258 treesize of output 260 [2021-11-23 01:51:59,048 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-23 01:51:59,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 257 treesize of output 257 [2021-11-23 01:51:59,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,201 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-23 01:51:59,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 22 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 258 treesize of output 271 [2021-11-23 01:51:59,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,240 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:59,320 INFO L354 Elim1Store]: treesize reduction 82, result has 31.7 percent of original size [2021-11-23 01:51:59,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 246 treesize of output 266 [2021-11-23 01:51:59,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,350 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:59,404 INFO L354 Elim1Store]: treesize reduction 82, result has 31.7 percent of original size [2021-11-23 01:51:59,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 25 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 244 treesize of output 264 [2021-11-23 01:51:59,434 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 01:51:59,435 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 1 case distinctions, treesize of input 242 treesize of output 244 [2021-11-23 01:51:59,463 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-23 01:51:59,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 241 treesize of output 241 [2021-11-23 01:51:59,559 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-23 01:51:59,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 16 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 219 treesize of output 241 [2021-11-23 01:51:59,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,583 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:59,629 INFO L354 Elim1Store]: treesize reduction 82, result has 31.7 percent of original size [2021-11-23 01:51:59,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 207 treesize of output 227 [2021-11-23 01:51:59,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:51:59,653 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:51:59,694 INFO L354 Elim1Store]: treesize reduction 82, result has 31.7 percent of original size [2021-11-23 01:51:59,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 25 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 225 [2021-11-23 01:51:59,723 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-23 01:51:59,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 203 treesize of output 203 [2021-11-23 01:51:59,748 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 01:51:59,748 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 1 case distinctions, treesize of input 197 treesize of output 199 [2021-11-23 01:51:59,802 INFO L197 IcfgInterpreter]: Interpreting procedure ldv__builtin_expect with input of size 336 for LOIs [2021-11-23 01:52:00,014 INFO L197 IcfgInterpreter]: Interpreting procedure constant_test_bit with input of size 223 for LOIs [2021-11-23 01:52:00,069 INFO L197 IcfgInterpreter]: Interpreting procedure cfhsi_tx_frm with input of size 240 for LOIs [2021-11-23 01:52:00,707 INFO L197 IcfgInterpreter]: Interpreting procedure cfhsi_dequeue with input of size 230 for LOIs [2021-11-23 01:52:02,366 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_skb_alloc with input of size 215 for LOIs [2021-11-23 01:52:03,174 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 70 treesize of output 66 [2021-11-23 01:52:03,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2021-11-23 01:52:03,195 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 62 treesize of output 37 [2021-11-23 01:52:03,336 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 332 for LOIs [2021-11-23 01:52:04,448 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 7 treesize of output 6 [2021-11-23 01:52:04,598 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 01:52:04,824 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 01:52:05,217 INFO L354 Elim1Store]: treesize reduction 22, result has 55.1 percent of original size [2021-11-23 01:52:05,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1142 treesize of output 1162 [2021-11-23 01:52:05,360 INFO L354 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2021-11-23 01:52:05,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1162 treesize of output 1186 [2021-11-23 01:52:05,528 INFO L354 Elim1Store]: treesize reduction 28, result has 55.6 percent of original size [2021-11-23 01:52:05,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 1186 treesize of output 1216 [2021-11-23 01:52:12,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 18 treesize of output 12 [2021-11-23 01:52:12,628 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:52:12,667 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:52:12,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 18 treesize of output 12 [2021-11-23 01:52:12,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 18 treesize of output 12 [2021-11-23 01:52:12,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 18 treesize of output 12 [2021-11-23 01:52:15,719 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-23 01:52:15,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1342 treesize of output 1322 [2021-11-23 01:52:37,947 INFO L354 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2021-11-23 01:52:37,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 524 treesize of output 526 [2021-11-23 01:52:38,559 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:52:38,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2021-11-23 01:52:38,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2021-11-23 01:52:39,061 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 01:52:39,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1585 treesize of output 1579 [2021-11-23 01:52:39,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 01:52:40,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2021-11-23 01:52:40,271 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 01:52:40,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 509 treesize of output 503 [2021-11-23 01:52:41,749 INFO L354 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2021-11-23 01:52:41,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1142 treesize of output 1166 [2021-11-23 01:52:41,868 INFO L354 Elim1Store]: treesize reduction 28, result has 55.6 percent of original size [2021-11-23 01:52:41,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 1166 treesize of output 1196 [2021-11-23 01:52:41,963 INFO L354 Elim1Store]: treesize reduction 22, result has 55.1 percent of original size [2021-11-23 01:52:41,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1196 treesize of output 1216 [2021-11-23 01:52:43,481 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 01:52:43,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 393 treesize of output 411 [2021-11-23 01:52:43,747 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:52:43,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 01:52:44,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 01:52:45,257 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 01:52:45,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 388 treesize of output 392 [2021-11-23 01:52:56,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 01:52:56,375 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:52:56,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 4 [2021-11-23 01:52:56,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 01:52:59,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2021-11-23 01:53:05,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2021-11-23 01:53:05,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2021-11-23 01:53:06,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 611 treesize of output 597 [2021-11-23 01:53:12,492 INFO L354 Elim1Store]: treesize reduction 22, result has 55.1 percent of original size [2021-11-23 01:53:12,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1142 treesize of output 1162 [2021-11-23 01:53:12,595 INFO L354 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2021-11-23 01:53:12,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1162 treesize of output 1186 [2021-11-23 01:53:12,734 INFO L354 Elim1Store]: treesize reduction 28, result has 55.6 percent of original size [2021-11-23 01:53:12,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 1186 treesize of output 1216 [2021-11-23 01:53:22,594 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 01:53:22,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1831 treesize of output 1763 [2021-11-23 01:53:26,344 INFO L354 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2021-11-23 01:53:26,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 1015 treesize of output 1003 [2021-11-23 01:53:27,505 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-23 01:53:27,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1831 treesize of output 1779 [2021-11-23 01:53:55,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1064 treesize of output 1052 [2021-11-23 01:54:48,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 01:54:53,270 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 01:54:53,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 5642 treesize of output 5660 [2021-11-23 01:57:45,685 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 01:57:45,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 513 treesize of output 507 [2021-11-23 01:57:45,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2021-11-23 01:57:46,064 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:58:55,228 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 01:58:55,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 510 treesize of output 512 [2021-11-23 01:58:55,480 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:58:55,974 INFO L354 Elim1Store]: treesize reduction 5328, result has 0.0 percent of original size [2021-11-23 01:58:55,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 37 select indices, 37 select index equivalence classes, 1 disjoint index pairs (out of 666 index pairs), introduced 37 new quantified variables, introduced 666 case distinctions, treesize of input 14587 treesize of output 14417 [2021-11-23 01:58:57,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 01:58:57,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:58:57,614 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Should have been eliminated by DER at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:340) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:903) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:865) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:783) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:425) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:162) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:243) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:496) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:162) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:243) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:635) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:162) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:243) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:233) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostconditionCall(PredicateTransformer.java:157) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.postCall(SymbolicTools.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretEnterCall(DagInterpreter.java:193) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:185) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 01:58:57,620 INFO L158 Benchmark]: Toolchain (without parser) took 506176.09ms. Allocated memory was 96.5MB in the beginning and 1.0GB in the end (delta: 906.0MB). Free memory was 69.5MB in the beginning and 776.0MB in the end (delta: -706.5MB). Peak memory consumption was 700.6MB. Max. memory is 16.1GB. [2021-11-23 01:58:57,620 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 96.5MB. Free memory was 68.8MB in the beginning and 68.8MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:58:57,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2538.91ms. Allocated memory was 96.5MB in the beginning and 134.2MB in the end (delta: 37.7MB). Free memory was 69.5MB in the beginning and 58.0MB in the end (delta: 11.5MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. [2021-11-23 01:58:57,621 INFO L158 Benchmark]: Boogie Procedure Inliner took 268.73ms. Allocated memory was 134.2MB in the beginning and 199.2MB in the end (delta: 65.0MB). Free memory was 57.3MB in the beginning and 132.7MB in the end (delta: -75.4MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2021-11-23 01:58:57,621 INFO L158 Benchmark]: Boogie Preprocessor took 232.03ms. Allocated memory is still 199.2MB. Free memory was 132.7MB in the beginning and 112.9MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 01:58:57,622 INFO L158 Benchmark]: RCFGBuilder took 5492.66ms. Allocated memory was 199.2MB in the beginning and 295.7MB in the end (delta: 96.5MB). Free memory was 112.9MB in the beginning and 114.5MB in the end (delta: -1.6MB). Peak memory consumption was 96.1MB. Max. memory is 16.1GB. [2021-11-23 01:58:57,622 INFO L158 Benchmark]: TraceAbstraction took 497637.65ms. Allocated memory was 295.7MB in the beginning and 1.0GB in the end (delta: 706.7MB). Free memory was 113.4MB in the beginning and 776.0MB in the end (delta: -662.5MB). Peak memory consumption was 546.7MB. Max. memory is 16.1GB. [2021-11-23 01:58:57,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 96.5MB. Free memory was 68.8MB in the beginning and 68.8MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2538.91ms. Allocated memory was 96.5MB in the beginning and 134.2MB in the end (delta: 37.7MB). Free memory was 69.5MB in the beginning and 58.0MB in the end (delta: 11.5MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 268.73ms. Allocated memory was 134.2MB in the beginning and 199.2MB in the end (delta: 65.0MB). Free memory was 57.3MB in the beginning and 132.7MB in the end (delta: -75.4MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 232.03ms. Allocated memory is still 199.2MB. Free memory was 132.7MB in the beginning and 112.9MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * RCFGBuilder took 5492.66ms. Allocated memory was 199.2MB in the beginning and 295.7MB in the end (delta: 96.5MB). Free memory was 112.9MB in the beginning and 114.5MB in the end (delta: -1.6MB). Peak memory consumption was 96.1MB. Max. memory is 16.1GB. * TraceAbstraction took 497637.65ms. Allocated memory was 295.7MB in the beginning and 1.0GB in the end (delta: 706.7MB). Free memory was 113.4MB in the beginning and 776.0MB in the end (delta: -662.5MB). Peak memory consumption was 546.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Should have been eliminated by DER de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Should have been eliminated by DER: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:108) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 01:58:57,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/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_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/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 6037d9c0da39b47219c2a722405991c574e168b5c260e77abe20cfd9849699bc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:59:00,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:59:00,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:59:00,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:59:00,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:59:00,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:59:00,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:59:00,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:59:00,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:59:00,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:59:00,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:59:00,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:59:00,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:59:00,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:59:00,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:59:00,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:59:00,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:59:00,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:59:00,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:59:00,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:59:00,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:59:00,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:59:00,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:59:00,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:59:00,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:59:00,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:59:00,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:59:00,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:59:00,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:59:00,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:59:00,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:59:00,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:59:00,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:59:00,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:59:00,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:59:00,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:59:00,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:59:00,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:59:00,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:59:00,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:59:00,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:59:00,211 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-23 01:59:00,265 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:59:00,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:59:00,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:59:00,267 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:59:00,268 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:59:00,268 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 01:59:00,269 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 01:59:00,269 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 01:59:00,269 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 01:59:00,269 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 01:59:00,271 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 01:59:00,271 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 01:59:00,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:59:00,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:59:00,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:59:00,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:59:00,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:59:00,274 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 01:59:00,274 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 01:59:00,274 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 01:59:00,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:59:00,275 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:59:00,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:59:00,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:59:00,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 01:59:00,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:59:00,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:59:00,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:59:00,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:59:00,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:59:00,277 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 01:59:00,278 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 01:59:00,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:59:00,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:59:00,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 01:59:00,279 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_4f6a1da2-f498-416c-935d-c609d62ee437/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6037d9c0da39b47219c2a722405991c574e168b5c260e77abe20cfd9849699bc [2021-11-23 01:59:00,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:59:00,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:59:00,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:59:00,746 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:59:00,749 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:59:00,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i [2021-11-23 01:59:00,812 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/data/99ffac0b5/7d9b95c716854d98b05337ffacca7494/FLAG4d4f338e0 [2021-11-23 01:59:01,892 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:59:01,893 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i [2021-11-23 01:59:01,931 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/data/99ffac0b5/7d9b95c716854d98b05337ffacca7494/FLAG4d4f338e0 [2021-11-23 01:59:02,263 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/data/99ffac0b5/7d9b95c716854d98b05337ffacca7494 [2021-11-23 01:59:02,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:59:02,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:59:02,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:59:02,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:59:02,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:59:02,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:59:02" (1/1) ... [2021-11-23 01:59:02,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@406434f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:02, skipping insertion in model container [2021-11-23 01:59:02,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:59:02" (1/1) ... [2021-11-23 01:59:02,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:59:02,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:59:03,583 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_4f6a1da2-f498-416c-935d-c609d62ee437/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i[158583,158596] [2021-11-23 01:59:04,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:59:04,537 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 01:59:04,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:59:04,763 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_4f6a1da2-f498-416c-935d-c609d62ee437/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i[158583,158596] [2021-11-23 01:59:05,020 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:59:05,044 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:59:05,229 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_4f6a1da2-f498-416c-935d-c609d62ee437/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i[158583,158596] [2021-11-23 01:59:05,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:59:05,587 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:59:05,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:05 WrapperNode [2021-11-23 01:59:05,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:59:05,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:59:05,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:59:05,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:59:05,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:05" (1/1) ... [2021-11-23 01:59:05,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:05" (1/1) ... [2021-11-23 01:59:05,846 INFO L137 Inliner]: procedures = 235, calls = 1798, calls flagged for inlining = 81, calls inlined = 72, statements flattened = 3079 [2021-11-23 01:59:05,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:59:05,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:59:05,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:59:05,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:59:05,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:05" (1/1) ... [2021-11-23 01:59:05,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:05" (1/1) ... [2021-11-23 01:59:05,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:05" (1/1) ... [2021-11-23 01:59:05,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:05" (1/1) ... [2021-11-23 01:59:06,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:05" (1/1) ... [2021-11-23 01:59:06,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:05" (1/1) ... [2021-11-23 01:59:06,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:05" (1/1) ... [2021-11-23 01:59:06,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:59:06,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:59:06,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:59:06,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:59:06,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:05" (1/1) ... [2021-11-23 01:59:06,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:59:06,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:59:06,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 01:59:06,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 01:59:06,233 INFO L130 BoogieDeclarations]: Found specification of procedure nla_get_u32 [2021-11-23 01:59:06,233 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_get_u32 [2021-11-23 01:59:06,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-23 01:59:06,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-23 01:59:06,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 01:59:06,234 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_xmit [2021-11-23 01:59:06,234 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_xmit [2021-11-23 01:59:06,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 01:59:06,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-23 01:59:06,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 01:59:06,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 01:59:06,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 01:59:06,235 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_u32 [2021-11-23 01:59:06,235 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_u32 [2021-11-23 01:59:06,236 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_start_tx [2021-11-23 01:59:06,236 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_start_tx [2021-11-23 01:59:06,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 01:59:06,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 01:59:06,236 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-23 01:59:06,236 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-23 01:59:06,237 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_bits [2021-11-23 01:59:06,237 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_bits [2021-11-23 01:59:06,237 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-23 01:59:06,237 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-23 01:59:06,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-11-23 01:59:06,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-11-23 01:59:06,238 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-11-23 01:59:06,238 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-11-23 01:59:06,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 01:59:06,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 01:59:06,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2021-11-23 01:59:06,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2021-11-23 01:59:06,239 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-23 01:59:06,239 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-23 01:59:06,239 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2021-11-23 01:59:06,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2021-11-23 01:59:06,239 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 01:59:06,239 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 01:59:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 01:59:06,240 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 01:59:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure caif_hsi_fill_info [2021-11-23 01:59:06,240 INFO L138 BoogieDeclarations]: Found implementation of procedure caif_hsi_fill_info [2021-11-23 01:59:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:59:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 01:59:06,241 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 01:59:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_rx_desc [2021-11-23 01:59:06,241 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_rx_desc [2021-11-23 01:59:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_update_aggregation_stats [2021-11-23 01:59:06,241 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_update_aggregation_stats [2021-11-23 01:59:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:59:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-11-23 01:59:06,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-11-23 01:59:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-23 01:59:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-23 01:59:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-23 01:59:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:59:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 01:59:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_tx_frm [2021-11-23 01:59:06,243 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_tx_frm [2021-11-23 01:59:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 01:59:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-23 01:59:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 01:59:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 01:59:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-23 01:59:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-23 01:59:06,244 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-23 01:59:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_dequeue [2021-11-23 01:59:06,245 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_dequeue [2021-11-23 01:59:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 01:59:06,245 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 01:59:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-23 01:59:06,245 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-23 01:59:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-23 01:59:06,246 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-23 01:59:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~X~$Pointer$~TO~C_INT [2021-11-23 01:59:06,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~X~$Pointer$~TO~C_INT [2021-11-23 01:59:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_rx_desc_len [2021-11-23 01:59:06,246 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_rx_desc_len [2021-11-23 01:59:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 01:59:06,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 01:59:06,247 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_tx_queue_len [2021-11-23 01:59:06,247 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_tx_queue_len [2021-11-23 01:59:06,247 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 01:59:06,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 01:59:06,247 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2021-11-23 01:59:06,248 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2021-11-23 01:59:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_21 [2021-11-23 01:59:06,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_21 [2021-11-23 01:59:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-23 01:59:06,248 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-23 01:59:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 01:59:06,249 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 01:59:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2021-11-23 01:59:06,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2021-11-23 01:59:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-23 01:59:06,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-23 01:59:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 01:59:06,250 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 01:59:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure caif_hsi_get_size [2021-11-23 01:59:06,250 INFO L138 BoogieDeclarations]: Found implementation of procedure caif_hsi_get_size [2021-11-23 01:59:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_netlink_parms [2021-11-23 01:59:06,250 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_netlink_parms [2021-11-23 01:59:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-23 01:59:06,251 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-23 01:59:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 01:59:06,251 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 01:59:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-23 01:59:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-23 01:59:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-23 01:59:06,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-23 01:59:06,252 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-23 01:59:06,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-23 01:59:06,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 01:59:06,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 01:59:06,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:59:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-11-23 01:59:06,253 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-11-23 01:59:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-23 01:59:06,253 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-23 01:59:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2021-11-23 01:59:06,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2021-11-23 01:59:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:59:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure caif_hsi_changelink [2021-11-23 01:59:06,254 INFO L138 BoogieDeclarations]: Found implementation of procedure caif_hsi_changelink [2021-11-23 01:59:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:59:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 01:59:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-23 01:59:06,255 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-23 01:59:06,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-23 01:59:06,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-23 01:59:06,255 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-11-23 01:59:06,255 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-11-23 01:59:06,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-23 01:59:06,256 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-23 01:59:06,256 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-23 01:59:06,256 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_open [2021-11-23 01:59:06,256 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_open [2021-11-23 01:59:06,256 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_rx_done [2021-11-23 01:59:06,256 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_rx_done [2021-11-23 01:59:06,257 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-23 01:59:06,257 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-23 01:59:06,257 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2021-11-23 01:59:06,257 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2021-11-23 01:59:06,257 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-23 01:59:06,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-23 01:59:06,257 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_can_send_aggregate [2021-11-23 01:59:06,258 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_can_send_aggregate [2021-11-23 01:59:06,258 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 01:59:06,258 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 01:59:06,258 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-23 01:59:06,258 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-23 01:59:06,258 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2021-11-23 01:59:06,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2021-11-23 01:59:06,259 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-23 01:59:06,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-23 01:59:06,259 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-23 01:59:06,259 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-23 01:59:06,259 INFO L130 BoogieDeclarations]: Found specification of procedure caif_hsi_newlink [2021-11-23 01:59:06,259 INFO L138 BoogieDeclarations]: Found implementation of procedure caif_hsi_newlink [2021-11-23 01:59:06,260 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-23 01:59:06,260 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-23 01:59:06,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-23 01:59:06,260 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-11-23 01:59:06,260 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-11-23 01:59:06,260 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_close [2021-11-23 01:59:06,261 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_close [2021-11-23 01:59:06,261 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-11-23 01:59:06,261 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-11-23 01:59:06,261 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_abort_tx [2021-11-23 01:59:06,261 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_abort_tx [2021-11-23 01:59:06,261 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-23 01:59:06,261 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-23 01:59:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:59:06,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:59:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-23 01:59:06,262 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-23 01:59:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-23 01:59:06,262 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-23 01:59:07,060 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:59:07,077 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:59:07,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 01:59:39,547 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:59:39,577 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:59:39,578 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 01:59:39,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:59:39 BoogieIcfgContainer [2021-11-23 01:59:39,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:59:39,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 01:59:39,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 01:59:39,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 01:59:39,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:59:02" (1/3) ... [2021-11-23 01:59:39,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c64634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:59:39, skipping insertion in model container [2021-11-23 01:59:39,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:05" (2/3) ... [2021-11-23 01:59:39,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c64634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:59:39, skipping insertion in model container [2021-11-23 01:59:39,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:59:39" (3/3) ... [2021-11-23 01:59:39,594 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i [2021-11-23 01:59:39,600 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 01:59:39,601 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 01:59:39,659 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 01:59:39,667 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 01:59:39,667 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 01:59:39,721 INFO L276 IsEmpty]: Start isEmpty. Operand has 1074 states, 746 states have (on average 1.3297587131367292) internal successors, (992), 765 states have internal predecessors, (992), 254 states have call successors, (254), 73 states have call predecessors, (254), 72 states have return successors, (250), 250 states have call predecessors, (250), 250 states have call successors, (250) [2021-11-23 01:59:39,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 01:59:39,747 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:59:39,748 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 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 01:59:39,748 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:59:39,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:59:39,759 INFO L85 PathProgramCache]: Analyzing trace with hash -876969632, now seen corresponding path program 1 times [2021-11-23 01:59:39,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 01:59:39,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838859935] [2021-11-23 01:59:39,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:59:39,777 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 01:59:39,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 01:59:39,780 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 01:59:39,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 01:59:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:59:40,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:59:40,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:59:41,022 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:59:41,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 01:59:41,301 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:59:41,302 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 01:59:41,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838859935] [2021-11-23 01:59:41,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838859935] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 01:59:41,305 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:59:41,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-23 01:59:41,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991429316] [2021-11-23 01:59:41,309 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 01:59:41,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 01:59:41,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 01:59:41,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 01:59:41,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-23 01:59:41,359 INFO L87 Difference]: Start difference. First operand has 1074 states, 746 states have (on average 1.3297587131367292) internal successors, (992), 765 states have internal predecessors, (992), 254 states have call successors, (254), 73 states have call predecessors, (254), 72 states have return successors, (250), 250 states have call predecessors, (250), 250 states have call successors, (250) Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 01:59:42,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:59:42,093 INFO L93 Difference]: Finished difference Result 3202 states and 4622 transitions. [2021-11-23 01:59:42,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 01:59:42,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2021-11-23 01:59:42,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:59:42,144 INFO L225 Difference]: With dead ends: 3202 [2021-11-23 01:59:42,145 INFO L226 Difference]: Without dead ends: 2098 [2021-11-23 01:59:42,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-23 01:59:42,173 INFO L933 BasicCegarLoop]: 1797 mSDtfsCounter, 1481 mSDsluCounter, 6890 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 8687 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 01:59:42,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1481 Valid, 8687 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 01:59:42,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2021-11-23 01:59:42,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 2094. [2021-11-23 01:59:42,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2094 states, 1459 states have (on average 1.3159698423577793) internal successors, (1920), 1485 states have internal predecessors, (1920), 494 states have call successors, (494), 141 states have call predecessors, (494), 140 states have return successors, (533), 493 states have call predecessors, (533), 493 states have call successors, (533) [2021-11-23 01:59:42,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2094 states to 2094 states and 2947 transitions. [2021-11-23 01:59:42,485 INFO L78 Accepts]: Start accepts. Automaton has 2094 states and 2947 transitions. Word has length 39 [2021-11-23 01:59:42,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:59:42,495 INFO L470 AbstractCegarLoop]: Abstraction has 2094 states and 2947 transitions. [2021-11-23 01:59:42,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 01:59:42,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2094 states and 2947 transitions. [2021-11-23 01:59:42,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-23 01:59:42,525 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:59:42,526 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2021-11-23 01:59:42,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 01:59:42,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 01:59:42,750 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:59:42,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:59:42,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1516121903, now seen corresponding path program 1 times [2021-11-23 01:59:42,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 01:59:42,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843902682] [2021-11-23 01:59:42,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:59:42,753 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 01:59:42,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 01:59:42,755 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 01:59:42,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 01:59:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:59:43,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 1329 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:59:43,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:59:44,450 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:59:44,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 01:59:45,897 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 01:59:45,898 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 01:59:45,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843902682] [2021-11-23 01:59:45,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843902682] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 01:59:45,898 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:59:45,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-23 01:59:45,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930756953] [2021-11-23 01:59:45,899 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 01:59:45,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 01:59:45,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 01:59:45,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 01:59:45,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:59:45,903 INFO L87 Difference]: Start difference. First operand 2094 states and 2947 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 01:59:46,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:59:46,095 INFO L93 Difference]: Finished difference Result 4190 states and 6003 transitions. [2021-11-23 01:59:46,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 01:59:46,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 129 [2021-11-23 01:59:46,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:59:46,167 INFO L225 Difference]: With dead ends: 4190 [2021-11-23 01:59:46,168 INFO L226 Difference]: Without dead ends: 2106 [2021-11-23 01:59:46,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:59:46,183 INFO L933 BasicCegarLoop]: 1471 mSDtfsCounter, 2 mSDsluCounter, 4408 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5879 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 01:59:46,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 5879 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 01:59:46,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2106 states. [2021-11-23 01:59:46,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2106 to 2104. [2021-11-23 01:59:46,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2104 states, 1466 states have (on average 1.3144611186903137) internal successors, (1927), 1493 states have internal predecessors, (1927), 494 states have call successors, (494), 141 states have call predecessors, (494), 143 states have return successors, (550), 495 states have call predecessors, (550), 493 states have call successors, (550) [2021-11-23 01:59:46,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2104 states to 2104 states and 2971 transitions. [2021-11-23 01:59:46,325 INFO L78 Accepts]: Start accepts. Automaton has 2104 states and 2971 transitions. Word has length 129 [2021-11-23 01:59:46,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:59:46,326 INFO L470 AbstractCegarLoop]: Abstraction has 2104 states and 2971 transitions. [2021-11-23 01:59:46,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 01:59:46,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2104 states and 2971 transitions. [2021-11-23 01:59:46,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-23 01:59:46,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:59:46,339 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 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, 1, 1, 1, 1] [2021-11-23 01:59:46,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 01:59:46,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 01:59:46,563 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:59:46,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:59:46,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1032266364, now seen corresponding path program 1 times [2021-11-23 01:59:46,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 01:59:46,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541043702] [2021-11-23 01:59:46,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:59:46,567 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 01:59:46,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 01:59:46,569 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 01:59:46,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 01:59:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:59:47,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 01:59:47,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:59:48,215 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-23 01:59:48,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 01:59:49,812 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-23 01:59:49,812 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 01:59:49,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541043702] [2021-11-23 01:59:49,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541043702] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 01:59:49,813 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:59:49,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-23 01:59:49,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123552698] [2021-11-23 01:59:49,814 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 01:59:49,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 01:59:49,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 01:59:49,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 01:59:49,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 01:59:49,816 INFO L87 Difference]: Start difference. First operand 2104 states and 2971 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 01:59:51,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:59:54,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:59:55,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:59:55,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:59:55,961 INFO L93 Difference]: Finished difference Result 4232 states and 6039 transitions. [2021-11-23 01:59:55,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 01:59:55,962 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 136 [2021-11-23 01:59:55,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:59:55,989 INFO L225 Difference]: With dead ends: 4232 [2021-11-23 01:59:55,989 INFO L226 Difference]: Without dead ends: 2138 [2021-11-23 01:59:56,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-23 01:59:56,007 INFO L933 BasicCegarLoop]: 1466 mSDtfsCounter, 37 mSDsluCounter, 5824 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 7290 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-23 01:59:56,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 7290 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-11-23 01:59:56,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2021-11-23 01:59:56,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2122. [2021-11-23 01:59:56,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2122 states, 1482 states have (on average 1.3124156545209176) internal successors, (1945), 1509 states have internal predecessors, (1945), 494 states have call successors, (494), 141 states have call predecessors, (494), 145 states have return successors, (559), 497 states have call predecessors, (559), 493 states have call successors, (559) [2021-11-23 01:59:56,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 2998 transitions. [2021-11-23 01:59:56,134 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 2998 transitions. Word has length 136 [2021-11-23 01:59:56,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:59:56,137 INFO L470 AbstractCegarLoop]: Abstraction has 2122 states and 2998 transitions. [2021-11-23 01:59:56,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 01:59:56,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 2998 transitions. [2021-11-23 01:59:56,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-23 01:59:56,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:59:56,147 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1] [2021-11-23 01:59:56,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 01:59:56,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 01:59:56,371 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:59:56,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:59:56,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1503800791, now seen corresponding path program 1 times [2021-11-23 01:59:56,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 01:59:56,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680000881] [2021-11-23 01:59:56,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:59:56,373 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 01:59:56,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 01:59:56,375 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 01:59:56,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 01:59:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:59:57,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 01:59:57,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:59:58,606 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:59:58,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:00:03,885 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 02:00:03,885 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:00:03,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680000881] [2021-11-23 02:00:03,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680000881] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:00:03,886 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:00:03,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-11-23 02:00:03,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650939589] [2021-11-23 02:00:03,886 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:00:03,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-23 02:00:03,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:00:03,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-23 02:00:03,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-11-23 02:00:03,889 INFO L87 Difference]: Start difference. First operand 2122 states and 2998 transitions. Second operand has 20 states, 20 states have (on average 5.45) internal successors, (109), 16 states have internal predecessors, (109), 4 states have call successors, (21), 2 states have call predecessors, (21), 6 states have return successors, (22), 8 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-23 02:00:05,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:00:05,332 INFO L93 Difference]: Finished difference Result 4248 states and 6096 transitions. [2021-11-23 02:00:05,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 02:00:05,333 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.45) internal successors, (109), 16 states have internal predecessors, (109), 4 states have call successors, (21), 2 states have call predecessors, (21), 6 states have return successors, (22), 8 states have call predecessors, (22), 4 states have call successors, (22) Word has length 137 [2021-11-23 02:00:05,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:00:05,353 INFO L225 Difference]: With dead ends: 4248 [2021-11-23 02:00:05,353 INFO L226 Difference]: Without dead ends: 2136 [2021-11-23 02:00:05,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2021-11-23 02:00:05,370 INFO L933 BasicCegarLoop]: 1490 mSDtfsCounter, 32 mSDsluCounter, 22298 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 23788 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:00:05,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 23788 Invalid, 164 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 02:00:05,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2021-11-23 02:00:05,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 2133. [2021-11-23 02:00:05,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2133 states, 1491 states have (on average 1.3091884641180416) internal successors, (1952), 1518 states have internal predecessors, (1952), 494 states have call successors, (494), 141 states have call predecessors, (494), 147 states have return successors, (561), 499 states have call predecessors, (561), 493 states have call successors, (561) [2021-11-23 02:00:05,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2133 states to 2133 states and 3007 transitions. [2021-11-23 02:00:05,478 INFO L78 Accepts]: Start accepts. Automaton has 2133 states and 3007 transitions. Word has length 137 [2021-11-23 02:00:05,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:00:05,479 INFO L470 AbstractCegarLoop]: Abstraction has 2133 states and 3007 transitions. [2021-11-23 02:00:05,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.45) internal successors, (109), 16 states have internal predecessors, (109), 4 states have call successors, (21), 2 states have call predecessors, (21), 6 states have return successors, (22), 8 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-23 02:00:05,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2133 states and 3007 transitions. [2021-11-23 02:00:05,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-23 02:00:05,490 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:05,491 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:00:05,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:00:05,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:00:05,706 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:00:05,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:05,707 INFO L85 PathProgramCache]: Analyzing trace with hash -353671453, now seen corresponding path program 1 times [2021-11-23 02:00:05,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:00:05,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [492837532] [2021-11-23 02:00:05,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:05,708 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:00:05,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:00:05,709 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:00:05,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 02:00:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:00:06,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 02:00:06,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:00:07,185 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-23 02:00:07,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:00:07,607 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-23 02:00:07,607 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:00:07,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [492837532] [2021-11-23 02:00:07,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [492837532] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:00:07,607 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:00:07,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-23 02:00:07,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904814073] [2021-11-23 02:00:07,608 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:00:07,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:00:07,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:00:07,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:00:07,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:00:07,609 INFO L87 Difference]: Start difference. First operand 2133 states and 3007 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-23 02:00:07,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:00:07,911 INFO L93 Difference]: Finished difference Result 5641 states and 7918 transitions. [2021-11-23 02:00:07,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:00:07,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 162 [2021-11-23 02:00:07,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:00:07,947 INFO L225 Difference]: With dead ends: 5641 [2021-11-23 02:00:07,947 INFO L226 Difference]: Without dead ends: 3518 [2021-11-23 02:00:07,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 321 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 02:00:07,961 INFO L933 BasicCegarLoop]: 1604 mSDtfsCounter, 942 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 3046 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:00:07,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [942 Valid, 3046 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:00:07,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3518 states. [2021-11-23 02:00:08,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3518 to 3500. [2021-11-23 02:00:08,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3500 states, 2497 states have (on average 1.3207849419303164) internal successors, (3298), 2539 states have internal predecessors, (3298), 754 states have call successors, (754), 235 states have call predecessors, (754), 248 states have return successors, (855), 765 states have call predecessors, (855), 753 states have call successors, (855) [2021-11-23 02:00:08,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3500 states to 3500 states and 4907 transitions. [2021-11-23 02:00:08,161 INFO L78 Accepts]: Start accepts. Automaton has 3500 states and 4907 transitions. Word has length 162 [2021-11-23 02:00:08,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:00:08,162 INFO L470 AbstractCegarLoop]: Abstraction has 3500 states and 4907 transitions. [2021-11-23 02:00:08,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-23 02:00:08,162 INFO L276 IsEmpty]: Start isEmpty. Operand 3500 states and 4907 transitions. [2021-11-23 02:00:08,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-23 02:00:08,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:08,175 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:00:08,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 02:00:08,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:00:08,394 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:00:08,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:08,394 INFO L85 PathProgramCache]: Analyzing trace with hash -70580112, now seen corresponding path program 1 times [2021-11-23 02:00:08,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:00:08,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127625325] [2021-11-23 02:00:08,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:08,396 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:00:08,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:00:08,399 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:00:08,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 02:00:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:00:09,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 1377 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 02:00:09,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:00:09,862 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-23 02:00:09,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:00:10,444 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-23 02:00:10,444 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:00:10,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127625325] [2021-11-23 02:00:10,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127625325] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:00:10,445 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:00:10,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-23 02:00:10,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13404788] [2021-11-23 02:00:10,445 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:00:10,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:00:10,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:00:10,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:00:10,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:00:10,447 INFO L87 Difference]: Start difference. First operand 3500 states and 4907 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-23 02:00:11,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:00:11,119 INFO L93 Difference]: Finished difference Result 7090 states and 10035 transitions. [2021-11-23 02:00:11,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:00:11,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 148 [2021-11-23 02:00:11,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:00:11,150 INFO L225 Difference]: With dead ends: 7090 [2021-11-23 02:00:11,150 INFO L226 Difference]: Without dead ends: 3600 [2021-11-23 02:00:11,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 292 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 02:00:11,170 INFO L933 BasicCegarLoop]: 1473 mSDtfsCounter, 47 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 4329 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:00:11,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 4329 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 02:00:11,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3600 states. [2021-11-23 02:00:11,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3600 to 3596. [2021-11-23 02:00:11,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3596 states, 2567 states have (on average 1.3167121153097001) internal successors, (3380), 2611 states have internal predecessors, (3380), 778 states have call successors, (778), 235 states have call predecessors, (778), 250 states have return successors, (892), 789 states have call predecessors, (892), 777 states have call successors, (892) [2021-11-23 02:00:11,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3596 states to 3596 states and 5050 transitions. [2021-11-23 02:00:11,381 INFO L78 Accepts]: Start accepts. Automaton has 3596 states and 5050 transitions. Word has length 148 [2021-11-23 02:00:11,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:00:11,383 INFO L470 AbstractCegarLoop]: Abstraction has 3596 states and 5050 transitions. [2021-11-23 02:00:11,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-23 02:00:11,384 INFO L276 IsEmpty]: Start isEmpty. Operand 3596 states and 5050 transitions. [2021-11-23 02:00:11,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-23 02:00:11,400 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:11,401 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:11,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 02:00:11,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:00:11,614 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:00:11,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:11,615 INFO L85 PathProgramCache]: Analyzing trace with hash -399686318, now seen corresponding path program 1 times [2021-11-23 02:00:11,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:00:11,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595694182] [2021-11-23 02:00:11,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:11,617 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:00:11,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:00:11,618 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:00:11,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 02:00:12,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:00:12,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 02:00:12,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:00:13,584 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:00:13,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:00:15,401 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 02:00:15,402 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:00:15,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595694182] [2021-11-23 02:00:15,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595694182] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 02:00:15,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:00:15,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 11 [2021-11-23 02:00:15,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430309630] [2021-11-23 02:00:15,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:00:15,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:00:15,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:00:15,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:00:15,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-11-23 02:00:15,405 INFO L87 Difference]: Start difference. First operand 3596 states and 5050 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 5 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-23 02:00:22,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:24,178 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:26,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:29,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:31,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:34,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:37,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:42,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:46,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:49,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:00:49,571 INFO L93 Difference]: Finished difference Result 10304 states and 14595 transitions. [2021-11-23 02:00:49,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 02:00:49,572 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 5 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 159 [2021-11-23 02:00:49,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:00:49,632 INFO L225 Difference]: With dead ends: 10304 [2021-11-23 02:00:49,632 INFO L226 Difference]: Without dead ends: 6718 [2021-11-23 02:00:49,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2021-11-23 02:00:49,654 INFO L933 BasicCegarLoop]: 1776 mSDtfsCounter, 3157 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 2920 mSolverCounterSat, 842 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3282 SdHoareTripleChecker+Valid, 3793 SdHoareTripleChecker+Invalid, 3766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 842 IncrementalHoareTripleChecker+Valid, 2920 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:00:49,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3282 Valid, 3793 Invalid, 3766 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [842 Valid, 2920 Invalid, 4 Unknown, 0 Unchecked, 33.3s Time] [2021-11-23 02:00:49,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6718 states. [2021-11-23 02:00:50,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6718 to 6616. [2021-11-23 02:00:50,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6616 states, 4725 states have (on average 1.3164021164021165) internal successors, (6220), 4813 states have internal predecessors, (6220), 1434 states have call successors, (1434), 417 states have call predecessors, (1434), 456 states have return successors, (1739), 1457 states have call predecessors, (1739), 1433 states have call successors, (1739) [2021-11-23 02:00:50,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6616 states to 6616 states and 9393 transitions. [2021-11-23 02:00:50,074 INFO L78 Accepts]: Start accepts. Automaton has 6616 states and 9393 transitions. Word has length 159 [2021-11-23 02:00:50,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:00:50,074 INFO L470 AbstractCegarLoop]: Abstraction has 6616 states and 9393 transitions. [2021-11-23 02:00:50,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 5 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-23 02:00:50,075 INFO L276 IsEmpty]: Start isEmpty. Operand 6616 states and 9393 transitions. [2021-11-23 02:00:50,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-23 02:00:50,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:50,104 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 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 02:00:50,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-23 02:00:50,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:00:50,326 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:00:50,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:50,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1425180528, now seen corresponding path program 1 times [2021-11-23 02:00:50,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:00:50,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [473820872] [2021-11-23 02:00:50,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:50,329 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:00:50,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:00:50,331 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:00:50,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-23 02:00:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:00:51,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 1455 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 02:00:51,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:00:51,958 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 02:00:51,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:00:52,537 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 02:00:52,537 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:00:52,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [473820872] [2021-11-23 02:00:52,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [473820872] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:00:52,538 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:00:52,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-23 02:00:52,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666996887] [2021-11-23 02:00:52,538 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:00:52,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:00:52,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:00:52,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:00:52,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:00:52,544 INFO L87 Difference]: Start difference. First operand 6616 states and 9393 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-23 02:00:54,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:54,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:00:54,892 INFO L93 Difference]: Finished difference Result 13918 states and 19944 transitions. [2021-11-23 02:00:54,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:00:54,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 162 [2021-11-23 02:00:54,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:00:54,951 INFO L225 Difference]: With dead ends: 13918 [2021-11-23 02:00:54,951 INFO L226 Difference]: Without dead ends: 7312 [2021-11-23 02:00:54,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 321 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 02:00:54,988 INFO L933 BasicCegarLoop]: 1534 mSDtfsCounter, 88 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 2981 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:00:54,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 2981 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-23 02:00:55,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7312 states. [2021-11-23 02:00:55,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7312 to 6624. [2021-11-23 02:00:55,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6624 states, 4733 states have (on average 1.3158673145996196) internal successors, (6228), 4821 states have internal predecessors, (6228), 1434 states have call successors, (1434), 417 states have call predecessors, (1434), 456 states have return successors, (1739), 1457 states have call predecessors, (1739), 1433 states have call successors, (1739) [2021-11-23 02:00:55,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6624 states to 6624 states and 9401 transitions. [2021-11-23 02:00:55,415 INFO L78 Accepts]: Start accepts. Automaton has 6624 states and 9401 transitions. Word has length 162 [2021-11-23 02:00:55,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:00:55,416 INFO L470 AbstractCegarLoop]: Abstraction has 6624 states and 9401 transitions. [2021-11-23 02:00:55,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-23 02:00:55,416 INFO L276 IsEmpty]: Start isEmpty. Operand 6624 states and 9401 transitions. [2021-11-23 02:00:55,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-23 02:00:55,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:55,442 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:55,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-23 02:00:55,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:00:55,661 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:00:55,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:55,661 INFO L85 PathProgramCache]: Analyzing trace with hash -2134387758, now seen corresponding path program 1 times [2021-11-23 02:00:55,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:00:55,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2076821703] [2021-11-23 02:00:55,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:55,663 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:00:55,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:00:55,665 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:00:55,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-23 02:00:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:00:56,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 1503 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 02:00:56,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:00:57,458 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-23 02:00:57,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:00:58,793 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-23 02:00:58,794 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:00:58,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2076821703] [2021-11-23 02:00:58,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2076821703] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 02:00:58,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:00:58,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2021-11-23 02:00:58,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574376274] [2021-11-23 02:00:58,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:00:58,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 02:00:58,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:00:58,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 02:00:58,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-23 02:00:58,796 INFO L87 Difference]: Start difference. First operand 6624 states and 9401 transitions. Second operand has 7 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-23 02:01:00,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:00,347 INFO L93 Difference]: Finished difference Result 13766 states and 19676 transitions. [2021-11-23 02:01:00,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 02:01:00,348 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 179 [2021-11-23 02:01:00,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:00,390 INFO L225 Difference]: With dead ends: 13766 [2021-11-23 02:01:00,391 INFO L226 Difference]: Without dead ends: 7152 [2021-11-23 02:01:00,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-23 02:01:00,418 INFO L933 BasicCegarLoop]: 1508 mSDtfsCounter, 122 mSDsluCounter, 7381 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 8889 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:00,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 8889 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-23 02:01:00,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7152 states. [2021-11-23 02:01:00,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7152 to 6656. [2021-11-23 02:01:00,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6656 states, 4757 states have (on average 1.3142737019129704) internal successors, (6252), 4845 states have internal predecessors, (6252), 1442 states have call successors, (1442), 417 states have call predecessors, (1442), 456 states have return successors, (1747), 1465 states have call predecessors, (1747), 1441 states have call successors, (1747) [2021-11-23 02:01:00,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6656 states to 6656 states and 9441 transitions. [2021-11-23 02:01:00,846 INFO L78 Accepts]: Start accepts. Automaton has 6656 states and 9441 transitions. Word has length 179 [2021-11-23 02:01:00,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:00,846 INFO L470 AbstractCegarLoop]: Abstraction has 6656 states and 9441 transitions. [2021-11-23 02:01:00,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-23 02:01:00,847 INFO L276 IsEmpty]: Start isEmpty. Operand 6656 states and 9441 transitions. [2021-11-23 02:01:00,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-23 02:01:00,869 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:00,869 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 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 02:01:00,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-23 02:01:01,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:01:01,082 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:01:01,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:01,083 INFO L85 PathProgramCache]: Analyzing trace with hash 451302290, now seen corresponding path program 1 times [2021-11-23 02:01:01,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:01:01,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342483255] [2021-11-23 02:01:01,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:01,084 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:01:01,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:01:01,085 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:01:01,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-23 02:01:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:02,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 02:01:02,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:01:02,609 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-11-23 02:01:02,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 20 [2021-11-23 02:01:03,056 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 02:01:03,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:01:05,854 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 02:01:05,855 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:01:05,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342483255] [2021-11-23 02:01:05,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [342483255] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:01:05,855 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:01:05,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 8 [2021-11-23 02:01:05,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264968063] [2021-11-23 02:01:05,856 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:01:05,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:01:05,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:01:05,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:01:05,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=38, Unknown=1, NotChecked=0, Total=56 [2021-11-23 02:01:05,858 INFO L87 Difference]: Start difference. First operand 6656 states and 9441 transitions. Second operand has 8 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-23 02:01:10,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:12,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:15,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:17,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:21,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:23,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:27,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:29,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:31,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:32,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:36,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:37,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:39,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:40,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:40,688 INFO L93 Difference]: Finished difference Result 13370 states and 19026 transitions. [2021-11-23 02:01:40,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 02:01:40,692 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 162 [2021-11-23 02:01:40,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:40,732 INFO L225 Difference]: With dead ends: 13370 [2021-11-23 02:01:40,732 INFO L226 Difference]: Without dead ends: 6724 [2021-11-23 02:01:40,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 315 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=24, Invalid=47, Unknown=1, NotChecked=0, Total=72 [2021-11-23 02:01:40,757 INFO L933 BasicCegarLoop]: 1466 mSDtfsCounter, 26 mSDsluCounter, 4098 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 5564 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 158 IncrementalHoareTripleChecker+Unchecked, 34.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:40,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 5564 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 172 Invalid, 7 Unknown, 158 Unchecked, 34.5s Time] [2021-11-23 02:01:40,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6724 states. [2021-11-23 02:01:41,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6724 to 6716. [2021-11-23 02:01:41,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6716 states, 4805 states have (on average 1.3127991675338189) internal successors, (6308), 4893 states have internal predecessors, (6308), 1450 states have call successors, (1450), 421 states have call predecessors, (1450), 460 states have return successors, (1755), 1473 states have call predecessors, (1755), 1449 states have call successors, (1755) [2021-11-23 02:01:41,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6716 states to 6716 states and 9513 transitions. [2021-11-23 02:01:41,176 INFO L78 Accepts]: Start accepts. Automaton has 6716 states and 9513 transitions. Word has length 162 [2021-11-23 02:01:41,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:41,176 INFO L470 AbstractCegarLoop]: Abstraction has 6716 states and 9513 transitions. [2021-11-23 02:01:41,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-23 02:01:41,177 INFO L276 IsEmpty]: Start isEmpty. Operand 6716 states and 9513 transitions. [2021-11-23 02:01:41,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-23 02:01:41,198 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:41,199 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:41,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-23 02:01:41,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:01:41,414 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:01:41,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:41,415 INFO L85 PathProgramCache]: Analyzing trace with hash -920705726, now seen corresponding path program 1 times [2021-11-23 02:01:41,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:01:41,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491145161] [2021-11-23 02:01:41,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:41,416 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:01:41,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:01:41,417 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:01:41,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-23 02:01:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:42,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 1477 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 02:01:42,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:01:43,177 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-23 02:01:43,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:01:45,424 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-23 02:01:45,425 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:01:45,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491145161] [2021-11-23 02:01:45,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491145161] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:01:45,425 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:01:45,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2021-11-23 02:01:45,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846931540] [2021-11-23 02:01:45,425 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:01:45,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 02:01:45,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:01:45,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 02:01:45,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-23 02:01:45,427 INFO L87 Difference]: Start difference. First operand 6716 states and 9513 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 8 states have internal predecessors, (119), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 5 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 02:01:46,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:46,271 INFO L93 Difference]: Finished difference Result 13450 states and 19168 transitions. [2021-11-23 02:01:46,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 02:01:46,272 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 8 states have internal predecessors, (119), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 5 states have call predecessors, (19), 2 states have call successors, (19) Word has length 175 [2021-11-23 02:01:46,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:46,375 INFO L225 Difference]: With dead ends: 13450 [2021-11-23 02:01:46,375 INFO L226 Difference]: Without dead ends: 6744 [2021-11-23 02:01:46,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-23 02:01:46,394 INFO L933 BasicCegarLoop]: 1487 mSDtfsCounter, 16 mSDsluCounter, 11862 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 13349 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:46,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 13349 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 02:01:46,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6744 states. [2021-11-23 02:01:46,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6744 to 6734. [2021-11-23 02:01:46,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6734 states, 4819 states have (on average 1.3118904336999377) internal successors, (6322), 4905 states have internal predecessors, (6322), 1452 states have call successors, (1452), 421 states have call predecessors, (1452), 462 states have return successors, (1763), 1479 states have call predecessors, (1763), 1451 states have call successors, (1763) [2021-11-23 02:01:46,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6734 states to 6734 states and 9537 transitions. [2021-11-23 02:01:46,753 INFO L78 Accepts]: Start accepts. Automaton has 6734 states and 9537 transitions. Word has length 175 [2021-11-23 02:01:46,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:46,754 INFO L470 AbstractCegarLoop]: Abstraction has 6734 states and 9537 transitions. [2021-11-23 02:01:46,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 8 states have internal predecessors, (119), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 5 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 02:01:46,754 INFO L276 IsEmpty]: Start isEmpty. Operand 6734 states and 9537 transitions. [2021-11-23 02:01:46,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-23 02:01:46,776 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:46,776 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:46,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-23 02:01:46,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:01:46,998 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:01:46,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:46,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1157610589, now seen corresponding path program 1 times [2021-11-23 02:01:47,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:01:47,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915181790] [2021-11-23 02:01:47,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:47,001 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:01:47,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:01:47,002 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:01:47,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-23 02:01:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:48,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 1493 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 02:01:48,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:01:49,386 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-23 02:01:49,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:01:55,439 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-23 02:01:55,440 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:01:55,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915181790] [2021-11-23 02:01:55,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915181790] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:01:55,440 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:01:55,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-11-23 02:01:55,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056078303] [2021-11-23 02:01:55,440 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:01:55,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-23 02:01:55,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:01:55,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-23 02:01:55,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2021-11-23 02:01:55,442 INFO L87 Difference]: Start difference. First operand 6734 states and 9537 transitions. Second operand has 24 states, 24 states have (on average 5.875) internal successors, (141), 18 states have internal predecessors, (141), 6 states have call successors, (23), 2 states have call predecessors, (23), 8 states have return successors, (25), 12 states have call predecessors, (25), 5 states have call successors, (25) [2021-11-23 02:01:59,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:59,257 INFO L93 Difference]: Finished difference Result 14084 states and 20086 transitions. [2021-11-23 02:01:59,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 02:01:59,262 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.875) internal successors, (141), 18 states have internal predecessors, (141), 6 states have call successors, (23), 2 states have call predecessors, (23), 8 states have return successors, (25), 12 states have call predecessors, (25), 5 states have call successors, (25) Word has length 181 [2021-11-23 02:01:59,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:59,301 INFO L225 Difference]: With dead ends: 14084 [2021-11-23 02:01:59,302 INFO L226 Difference]: Without dead ends: 7360 [2021-11-23 02:01:59,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=95, Invalid=775, Unknown=0, NotChecked=0, Total=870 [2021-11-23 02:01:59,326 INFO L933 BasicCegarLoop]: 1582 mSDtfsCounter, 105 mSDsluCounter, 28326 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 29908 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:59,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 29908 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-23 02:01:59,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7360 states. [2021-11-23 02:01:59,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7360 to 6712. [2021-11-23 02:01:59,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6712 states, 4817 states have (on average 1.3086983599750883) internal successors, (6304), 4889 states have internal predecessors, (6304), 1430 states have call successors, (1430), 421 states have call predecessors, (1430), 464 states have return successors, (1747), 1465 states have call predecessors, (1747), 1429 states have call successors, (1747) [2021-11-23 02:01:59,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6712 states to 6712 states and 9481 transitions. [2021-11-23 02:01:59,722 INFO L78 Accepts]: Start accepts. Automaton has 6712 states and 9481 transitions. Word has length 181 [2021-11-23 02:01:59,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:59,723 INFO L470 AbstractCegarLoop]: Abstraction has 6712 states and 9481 transitions. [2021-11-23 02:01:59,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.875) internal successors, (141), 18 states have internal predecessors, (141), 6 states have call successors, (23), 2 states have call predecessors, (23), 8 states have return successors, (25), 12 states have call predecessors, (25), 5 states have call successors, (25) [2021-11-23 02:01:59,723 INFO L276 IsEmpty]: Start isEmpty. Operand 6712 states and 9481 transitions. [2021-11-23 02:01:59,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-23 02:01:59,746 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:59,746 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:59,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-23 02:01:59,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:01:59,962 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:01:59,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:59,963 INFO L85 PathProgramCache]: Analyzing trace with hash -2088847811, now seen corresponding path program 1 times [2021-11-23 02:01:59,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:01:59,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [507360595] [2021-11-23 02:01:59,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:59,964 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:01:59,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:01:59,965 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:01:59,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-23 02:02:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:00,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 1515 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 02:02:00,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:02:01,789 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-23 02:02:01,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:02:03,432 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-23 02:02:03,432 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:02:03,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [507360595] [2021-11-23 02:02:03,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [507360595] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 02:02:03,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:02:03,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 12 [2021-11-23 02:02:03,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599875957] [2021-11-23 02:02:03,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:03,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:02:03,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:02:03,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:02:03,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-23 02:02:03,434 INFO L87 Difference]: Start difference. First operand 6712 states and 9481 transitions. Second operand has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 6 states have internal predecessors, (127), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-23 02:02:05,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:05,363 INFO L93 Difference]: Finished difference Result 14174 states and 20148 transitions. [2021-11-23 02:02:05,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 02:02:05,364 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 6 states have internal predecessors, (127), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 182 [2021-11-23 02:02:05,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:05,405 INFO L225 Difference]: With dead ends: 14174 [2021-11-23 02:02:05,405 INFO L226 Difference]: Without dead ends: 7472 [2021-11-23 02:02:05,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 351 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-11-23 02:02:05,432 INFO L933 BasicCegarLoop]: 1460 mSDtfsCounter, 268 mSDsluCounter, 8584 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 10044 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:05,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 10044 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 02:02:05,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7472 states. [2021-11-23 02:02:05,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7472 to 6736. [2021-11-23 02:02:05,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6736 states, 4833 states have (on average 1.3076763914752743) internal successors, (6320), 4897 states have internal predecessors, (6320), 1438 states have call successors, (1438), 421 states have call predecessors, (1438), 464 states have return successors, (1755), 1473 states have call predecessors, (1755), 1437 states have call successors, (1755) [2021-11-23 02:02:05,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6736 states to 6736 states and 9513 transitions. [2021-11-23 02:02:05,851 INFO L78 Accepts]: Start accepts. Automaton has 6736 states and 9513 transitions. Word has length 182 [2021-11-23 02:02:05,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:05,852 INFO L470 AbstractCegarLoop]: Abstraction has 6736 states and 9513 transitions. [2021-11-23 02:02:05,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 6 states have internal predecessors, (127), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-23 02:02:05,852 INFO L276 IsEmpty]: Start isEmpty. Operand 6736 states and 9513 transitions. [2021-11-23 02:02:05,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-23 02:02:05,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:05,868 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:05,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-23 02:02:06,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:02:06,090 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:02:06,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:06,091 INFO L85 PathProgramCache]: Analyzing trace with hash -334443529, now seen corresponding path program 1 times [2021-11-23 02:02:06,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:02:06,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901132984] [2021-11-23 02:02:06,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:06,093 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:02:06,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:02:06,095 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:02:06,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-23 02:02:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:07,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 1490 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 02:02:07,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:02:07,964 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 02:02:07,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:02:08,710 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 02:02:08,711 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:02:08,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901132984] [2021-11-23 02:02:08,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901132984] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:08,712 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:08,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 02:02:08,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762134132] [2021-11-23 02:02:08,712 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:08,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:02:08,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:02:08,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:02:08,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:02:08,714 INFO L87 Difference]: Start difference. First operand 6736 states and 9513 transitions. Second operand has 8 states, 8 states have (on average 20.375) internal successors, (163), 6 states have internal predecessors, (163), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (29), 4 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-23 02:02:12,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:02:12,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:12,408 INFO L93 Difference]: Finished difference Result 13662 states and 19358 transitions. [2021-11-23 02:02:12,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:02:12,409 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 6 states have internal predecessors, (163), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (29), 4 states have call predecessors, (29), 2 states have call successors, (29) Word has length 176 [2021-11-23 02:02:12,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:12,432 INFO L225 Difference]: With dead ends: 13662 [2021-11-23 02:02:12,432 INFO L226 Difference]: Without dead ends: 6936 [2021-11-23 02:02:12,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:02:12,452 INFO L933 BasicCegarLoop]: 1472 mSDtfsCounter, 19 mSDsluCounter, 8783 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 10255 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:12,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 10255 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-11-23 02:02:12,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6936 states. [2021-11-23 02:02:12,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6936 to 6804. [2021-11-23 02:02:12,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6804 states, 4885 states have (on average 1.3052200614124871) internal successors, (6376), 4949 states have internal predecessors, (6376), 1446 states have call successors, (1446), 421 states have call predecessors, (1446), 472 states have return successors, (1785), 1489 states have call predecessors, (1785), 1445 states have call successors, (1785) [2021-11-23 02:02:12,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6804 states to 6804 states and 9607 transitions. [2021-11-23 02:02:12,890 INFO L78 Accepts]: Start accepts. Automaton has 6804 states and 9607 transitions. Word has length 176 [2021-11-23 02:02:12,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:12,890 INFO L470 AbstractCegarLoop]: Abstraction has 6804 states and 9607 transitions. [2021-11-23 02:02:12,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 6 states have internal predecessors, (163), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (29), 4 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-23 02:02:12,891 INFO L276 IsEmpty]: Start isEmpty. Operand 6804 states and 9607 transitions. [2021-11-23 02:02:12,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-23 02:02:12,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:12,911 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:12,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-23 02:02:13,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:02:13,135 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:02:13,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:13,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1662600505, now seen corresponding path program 1 times [2021-11-23 02:02:13,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:02:13,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990302625] [2021-11-23 02:02:13,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:13,138 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:02:13,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:02:13,139 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:02:13,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f6a1da2-f498-416c-935d-c609d62ee437/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-23 02:02:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:14,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1618 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 02:02:14,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:02:16,032 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-23 02:02:16,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:02:17,691 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-23 02:02:17,691 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:02:17,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990302625] [2021-11-23 02:02:17,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990302625] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:17,692 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:17,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 8 [2021-11-23 02:02:17,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997578116] [2021-11-23 02:02:17,692 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:17,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:02:17,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:02:17,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:02:17,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:02:17,693 INFO L87 Difference]: Start difference. First operand 6804 states and 9607 transitions. Second operand has 8 states, 8 states have (on average 29.0) internal successors, (232), 8 states have internal predecessors, (232), 8 states have call successors, (45), 5 states have call predecessors, (45), 4 states have return successors, (44), 7 states have call predecessors, (44), 7 states have call successors, (44)