./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 516f7415706b6c5853539632c826b0e29b08def0097a2be3ef08c779c9d5bd22 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:30:46,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:30:46,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:30:46,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:30:46,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:30:46,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:30:46,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:30:46,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:30:46,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:30:46,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:30:46,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:30:46,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:30:46,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:30:46,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:30:46,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:30:46,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:30:46,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:30:46,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:30:46,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:30:46,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:30:46,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:30:46,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:30:46,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:30:46,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:30:46,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:30:46,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:30:46,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:30:46,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:30:46,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:30:46,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:30:46,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:30:46,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:30:46,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:30:46,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:30:46,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:30:46,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:30:46,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:30:46,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:30:46,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:30:46,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:30:46,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:30:46,377 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:30:46,400 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:30:46,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:30:46,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:30:46,401 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:30:46,402 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:30:46,402 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:30:46,402 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:30:46,402 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:30:46,403 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:30:46,403 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:30:46,403 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:30:46,403 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:30:46,404 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:30:46,404 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:30:46,404 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:30:46,404 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:30:46,405 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:30:46,405 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:30:46,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:30:46,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:30:46,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:30:46,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:30:46,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:30:46,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:30:46,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:30:46,407 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:30:46,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:30:46,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:30:46,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:30:46,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:30:46,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:30:46,409 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:30:46,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:30:46,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:30:46,409 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:30:46,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:30:46,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:30:46,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:30:46,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516f7415706b6c5853539632c826b0e29b08def0097a2be3ef08c779c9d5bd22 [2022-11-19 07:30:46,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:30:46,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:30:46,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:30:46,743 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:30:46,744 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:30:46,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i [2022-11-19 07:30:46,840 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/data/463ad1c17/27ae826e3c024b15b1fb02c587a30ca5/FLAG25ecbb02c [2022-11-19 07:30:47,694 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:30:47,695 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i [2022-11-19 07:30:47,737 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/data/463ad1c17/27ae826e3c024b15b1fb02c587a30ca5/FLAG25ecbb02c [2022-11-19 07:30:48,198 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/data/463ad1c17/27ae826e3c024b15b1fb02c587a30ca5 [2022-11-19 07:30:48,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:30:48,203 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:30:48,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:30:48,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:30:48,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:30:48,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:30:48" (1/1) ... [2022-11-19 07:30:48,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc7932c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:48, skipping insertion in model container [2022-11-19 07:30:48,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:30:48" (1/1) ... [2022-11-19 07:30:48,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:30:48,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:30:49,326 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i[160816,160829] [2022-11-19 07:30:49,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:30:49,881 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:30:50,062 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i[160816,160829] [2022-11-19 07:30:50,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:30:50,289 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:30:50,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:50 WrapperNode [2022-11-19 07:30:50,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:30:50,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:30:50,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:30:50,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:30:50,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:50" (1/1) ... [2022-11-19 07:30:50,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:50" (1/1) ... [2022-11-19 07:30:50,523 INFO L138 Inliner]: procedures = 140, calls = 1098, calls flagged for inlining = 55, calls inlined = 52, statements flattened = 1938 [2022-11-19 07:30:50,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:30:50,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:30:50,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:30:50,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:30:50,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:50" (1/1) ... [2022-11-19 07:30:50,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:50" (1/1) ... [2022-11-19 07:30:50,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:50" (1/1) ... [2022-11-19 07:30:50,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:50" (1/1) ... [2022-11-19 07:30:50,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:50" (1/1) ... [2022-11-19 07:30:50,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:50" (1/1) ... [2022-11-19 07:30:50,725 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:50" (1/1) ... [2022-11-19 07:30:50,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:50" (1/1) ... [2022-11-19 07:30:50,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:30:50,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:30:50,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:30:50,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:30:50,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:50" (1/1) ... [2022-11-19 07:30:50,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:30:50,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:30:50,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:30:50,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:30:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:30:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2022-11-19 07:30:50,874 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2022-11-19 07:30:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:30:50,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:30:50,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:30:50,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:30:50,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:30:50,875 INFO L130 BoogieDeclarations]: Found specification of procedure write_long_reg [2022-11-19 07:30:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure write_long_reg [2022-11-19 07:30:50,876 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2022-11-19 07:30:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2022-11-19 07:30:50,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:30:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:30:50,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-19 07:30:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-19 07:30:50,877 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2022-11-19 07:30:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2022-11-19 07:30:50,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:30:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:30:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-19 07:30:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-19 07:30:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:30:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 07:30:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 07:30:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 07:30:50,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 07:30:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:30:50,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:30:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_set_channel [2022-11-19 07:30:50,879 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_set_channel [2022-11-19 07:30:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2022-11-19 07:30:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2022-11-19 07:30:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:30:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:30:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure write_short_reg [2022-11-19 07:30:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure write_short_reg [2022-11-19 07:30:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:30:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:30:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure ieee802154_unregister_device [2022-11-19 07:30:50,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee802154_unregister_device [2022-11-19 07:30:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:30:50,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:30:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:30:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:30:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-19 07:30:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-19 07:30:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2022-11-19 07:30:50,883 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2022-11-19 07:30:50,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-11-19 07:30:50,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-11-19 07:30:50,885 INFO L130 BoogieDeclarations]: Found specification of procedure read_short_reg [2022-11-19 07:30:50,885 INFO L138 BoogieDeclarations]: Found implementation of procedure read_short_reg [2022-11-19 07:30:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_filter [2022-11-19 07:30:50,886 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_filter [2022-11-19 07:30:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:30:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-19 07:30:50,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-19 07:30:50,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:30:50,887 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-11-19 07:30:50,887 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-11-19 07:30:50,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:30:50,888 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:30:50,888 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:30:50,888 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2022-11-19 07:30:50,888 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2022-11-19 07:30:50,888 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_tx [2022-11-19 07:30:50,888 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_tx [2022-11-19 07:30:50,889 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_isr [2022-11-19 07:30:50,889 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_isr [2022-11-19 07:30:50,889 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_ed [2022-11-19 07:30:50,889 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_ed [2022-11-19 07:30:50,889 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 07:30:50,889 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 07:30:50,890 INFO L130 BoogieDeclarations]: Found specification of procedure ieee802154_free_device [2022-11-19 07:30:50,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee802154_free_device [2022-11-19 07:30:50,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:30:50,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:30:50,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 07:30:50,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 07:30:50,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:30:50,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:30:51,436 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:30:51,439 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:31:02,031 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:31:12,303 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:31:13,034 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:31:13,034 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-19 07:31:13,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:31:13 BoogieIcfgContainer [2022-11-19 07:31:13,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:31:13,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:31:13,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:31:13,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:31:13,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:30:48" (1/3) ... [2022-11-19 07:31:13,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671a48ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:31:13, skipping insertion in model container [2022-11-19 07:31:13,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:30:50" (2/3) ... [2022-11-19 07:31:13,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671a48ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:31:13, skipping insertion in model container [2022-11-19 07:31:13,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:31:13" (3/3) ... [2022-11-19 07:31:13,051 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i [2022-11-19 07:31:13,070 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:31:13,071 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:31:13,169 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:31:13,178 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4b7c7ca4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:31:13,178 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:31:13,184 INFO L276 IsEmpty]: Start isEmpty. Operand has 494 states, 312 states have (on average 1.3717948717948718) internal successors, (428), 326 states have internal predecessors, (428), 148 states have call successors, (148), 33 states have call predecessors, (148), 32 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2022-11-19 07:31:13,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 07:31:13,199 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:31:13,199 INFO L195 NwaCegarLoop]: 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] [2022-11-19 07:31:13,200 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:31:13,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:31:13,207 INFO L85 PathProgramCache]: Analyzing trace with hash 257066970, now seen corresponding path program 1 times [2022-11-19 07:31:13,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:31:13,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284413076] [2022-11-19 07:31:13,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:31:13,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:31:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:31:13,864 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 07:31:13,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:31:13,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284413076] [2022-11-19 07:31:13,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284413076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:31:13,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:31:13,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:31:13,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942990536] [2022-11-19 07:31:13,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:31:13,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:31:13,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:31:13,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:31:13,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:31:13,905 INFO L87 Difference]: Start difference. First operand has 494 states, 312 states have (on average 1.3717948717948718) internal successors, (428), 326 states have internal predecessors, (428), 148 states have call successors, (148), 33 states have call predecessors, (148), 32 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-19 07:31:15,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:18,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:20,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:21,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:31:21,370 INFO L93 Difference]: Finished difference Result 1388 states and 2134 transitions. [2022-11-19 07:31:21,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:31:21,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 30 [2022-11-19 07:31:21,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:31:21,412 INFO L225 Difference]: With dead ends: 1388 [2022-11-19 07:31:21,413 INFO L226 Difference]: Without dead ends: 881 [2022-11-19 07:31:21,426 INFO L412 NwaCegarLoop]: 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 [2022-11-19 07:31:21,433 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 573 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:31:21,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 1369 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 158 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-11-19 07:31:21,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2022-11-19 07:31:21,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 880. [2022-11-19 07:31:21,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 571 states have (on average 1.3292469352014011) internal successors, (759), 579 states have internal predecessors, (759), 249 states have call successors, (249), 61 states have call predecessors, (249), 59 states have return successors, (250), 247 states have call predecessors, (250), 248 states have call successors, (250) [2022-11-19 07:31:21,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1258 transitions. [2022-11-19 07:31:21,638 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1258 transitions. Word has length 30 [2022-11-19 07:31:21,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:31:21,640 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1258 transitions. [2022-11-19 07:31:21,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-19 07:31:21,640 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1258 transitions. [2022-11-19 07:31:21,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-19 07:31:21,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:31:21,652 INFO L195 NwaCegarLoop]: 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] [2022-11-19 07:31:21,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:31:21,652 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:31:21,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:31:21,653 INFO L85 PathProgramCache]: Analyzing trace with hash 2003588038, now seen corresponding path program 1 times [2022-11-19 07:31:21,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:31:21,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896342872] [2022-11-19 07:31:21,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:31:21,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:31:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:31:22,105 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 07:31:22,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:31:22,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896342872] [2022-11-19 07:31:22,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896342872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:31:22,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:31:22,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:31:22,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373648098] [2022-11-19 07:31:22,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:31:22,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:31:22,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:31:22,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:31:22,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:31:22,115 INFO L87 Difference]: Start difference. First operand 880 states and 1258 transitions. 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) [2022-11-19 07:31:24,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:26,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:28,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:29,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:31:29,645 INFO L93 Difference]: Finished difference Result 1687 states and 2428 transitions. [2022-11-19 07:31:29,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:31:29,646 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 [2022-11-19 07:31:29,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:31:29,662 INFO L225 Difference]: With dead ends: 1687 [2022-11-19 07:31:29,664 INFO L226 Difference]: Without dead ends: 1682 [2022-11-19 07:31:29,666 INFO L412 NwaCegarLoop]: 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 [2022-11-19 07:31:29,667 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 563 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:31:29,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 2092 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-11-19 07:31:29,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2022-11-19 07:31:29,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1679. [2022-11-19 07:31:29,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1094 states have (on average 1.329981718464351) internal successors, (1455), 1110 states have internal predecessors, (1455), 469 states have call successors, (469), 119 states have call predecessors, (469), 115 states have return successors, (494), 465 states have call predecessors, (494), 468 states have call successors, (494) [2022-11-19 07:31:29,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2418 transitions. [2022-11-19 07:31:29,795 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2418 transitions. Word has length 33 [2022-11-19 07:31:29,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:31:29,795 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2418 transitions. [2022-11-19 07:31:29,795 INFO L496 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) [2022-11-19 07:31:29,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2418 transitions. [2022-11-19 07:31:29,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-19 07:31:29,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:31:29,860 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 07:31:29,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:31:29,861 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:31:29,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:31:29,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1239923958, now seen corresponding path program 1 times [2022-11-19 07:31:29,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:31:29,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032967562] [2022-11-19 07:31:29,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:31:29,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:31:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:31:30,944 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-19 07:31:30,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:31:30,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032967562] [2022-11-19 07:31:30,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032967562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:31:30,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:31:30,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:31:30,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361601390] [2022-11-19 07:31:30,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:31:30,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:31:30,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:31:30,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:31:30,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:31:30,947 INFO L87 Difference]: Start difference. First operand 1679 states and 2418 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:31:32,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:35,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:38,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:38,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:31:38,765 INFO L93 Difference]: Finished difference Result 3416 states and 4926 transitions. [2022-11-19 07:31:38,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:31:38,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 178 [2022-11-19 07:31:38,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:31:38,780 INFO L225 Difference]: With dead ends: 3416 [2022-11-19 07:31:38,781 INFO L226 Difference]: Without dead ends: 1744 [2022-11-19 07:31:38,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:31:38,790 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 588 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:31:38,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 1945 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 300 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-11-19 07:31:38,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-11-19 07:31:38,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1740. [2022-11-19 07:31:38,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1740 states, 1128 states have (on average 1.323581560283688) internal successors, (1493), 1151 states have internal predecessors, (1493), 481 states have call successors, (481), 127 states have call predecessors, (481), 130 states have return successors, (526), 477 states have call predecessors, (526), 480 states have call successors, (526) [2022-11-19 07:31:38,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1740 states to 1740 states and 2500 transitions. [2022-11-19 07:31:38,955 INFO L78 Accepts]: Start accepts. Automaton has 1740 states and 2500 transitions. Word has length 178 [2022-11-19 07:31:38,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:31:38,956 INFO L495 AbstractCegarLoop]: Abstraction has 1740 states and 2500 transitions. [2022-11-19 07:31:38,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:31:38,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1740 states and 2500 transitions. [2022-11-19 07:31:38,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-19 07:31:38,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:31:38,967 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 07:31:38,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:31:38,972 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:31:38,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:31:38,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1488612263, now seen corresponding path program 1 times [2022-11-19 07:31:38,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:31:38,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633566223] [2022-11-19 07:31:38,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:31:38,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:31:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:31:39,789 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-19 07:31:39,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:31:39,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633566223] [2022-11-19 07:31:39,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633566223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:31:39,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:31:39,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:31:39,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780575621] [2022-11-19 07:31:39,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:31:39,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:31:39,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:31:39,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:31:39,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:31:39,792 INFO L87 Difference]: Start difference. First operand 1740 states and 2500 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:31:41,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:44,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:47,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:47,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:31:47,683 INFO L93 Difference]: Finished difference Result 3477 states and 4998 transitions. [2022-11-19 07:31:47,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:31:47,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 179 [2022-11-19 07:31:47,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:31:47,696 INFO L225 Difference]: With dead ends: 3477 [2022-11-19 07:31:47,696 INFO L226 Difference]: Without dead ends: 1744 [2022-11-19 07:31:47,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:31:47,705 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 587 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:31:47,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 1945 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 294 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-11-19 07:31:47,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-11-19 07:31:47,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1740. [2022-11-19 07:31:47,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1740 states, 1128 states have (on average 1.323581560283688) internal successors, (1493), 1151 states have internal predecessors, (1493), 481 states have call successors, (481), 127 states have call predecessors, (481), 130 states have return successors, (518), 477 states have call predecessors, (518), 480 states have call successors, (518) [2022-11-19 07:31:47,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1740 states to 1740 states and 2492 transitions. [2022-11-19 07:31:47,808 INFO L78 Accepts]: Start accepts. Automaton has 1740 states and 2492 transitions. Word has length 179 [2022-11-19 07:31:47,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:31:47,809 INFO L495 AbstractCegarLoop]: Abstraction has 1740 states and 2492 transitions. [2022-11-19 07:31:47,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:31:47,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1740 states and 2492 transitions. [2022-11-19 07:31:47,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-19 07:31:47,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:31:47,816 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 07:31:47,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:31:47,817 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:31:47,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:31:47,817 INFO L85 PathProgramCache]: Analyzing trace with hash 499190, now seen corresponding path program 1 times [2022-11-19 07:31:47,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:31:47,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470983050] [2022-11-19 07:31:47,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:31:47,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:31:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:31:48,612 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-19 07:31:48,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:31:48,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470983050] [2022-11-19 07:31:48,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470983050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:31:48,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:31:48,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:31:48,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585996549] [2022-11-19 07:31:48,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:31:48,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:31:48,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:31:48,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:31:48,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:31:48,615 INFO L87 Difference]: Start difference. First operand 1740 states and 2492 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:31:50,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:53,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:56,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:57,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:31:57,178 INFO L93 Difference]: Finished difference Result 5131 states and 7392 transitions. [2022-11-19 07:31:57,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:31:57,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 173 [2022-11-19 07:31:57,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:31:57,207 INFO L225 Difference]: With dead ends: 5131 [2022-11-19 07:31:57,207 INFO L226 Difference]: Without dead ends: 3398 [2022-11-19 07:31:57,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:31:57,226 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 609 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:31:57,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 2702 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 407 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-11-19 07:31:57,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3398 states. [2022-11-19 07:31:57,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3398 to 3350. [2022-11-19 07:31:57,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3350 states, 2180 states have (on average 1.3275229357798166) internal successors, (2894), 2245 states have internal predecessors, (2894), 917 states have call successors, (917), 239 states have call predecessors, (917), 252 states have return successors, (1016), 893 states have call predecessors, (1016), 916 states have call successors, (1016) [2022-11-19 07:31:57,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 4827 transitions. [2022-11-19 07:31:57,563 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 4827 transitions. Word has length 173 [2022-11-19 07:31:57,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:31:57,565 INFO L495 AbstractCegarLoop]: Abstraction has 3350 states and 4827 transitions. [2022-11-19 07:31:57,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:31:57,565 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 4827 transitions. [2022-11-19 07:31:57,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-19 07:31:57,586 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:31:57,586 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 07:31:57,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:31:57,586 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:31:57,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:31:57,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1444471620, now seen corresponding path program 1 times [2022-11-19 07:31:57,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:31:57,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961986302] [2022-11-19 07:31:57,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:31:57,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:31:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:31:58,359 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-19 07:31:58,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:31:58,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961986302] [2022-11-19 07:31:58,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961986302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:31:58,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:31:58,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:31:58,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247198806] [2022-11-19 07:31:58,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:31:58,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:31:58,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:31:58,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:31:58,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:31:58,362 INFO L87 Difference]: Start difference. First operand 3350 states and 4827 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:32:00,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:02,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:05,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:07,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:07,010 INFO L93 Difference]: Finished difference Result 6745 states and 9735 transitions. [2022-11-19 07:32:07,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:32:07,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 174 [2022-11-19 07:32:07,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:07,048 INFO L225 Difference]: With dead ends: 6745 [2022-11-19 07:32:07,048 INFO L226 Difference]: Without dead ends: 5006 [2022-11-19 07:32:07,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:32:07,064 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 612 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 2703 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:07,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 2703 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 400 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-11-19 07:32:07,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5006 states. [2022-11-19 07:32:07,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5006 to 4970. [2022-11-19 07:32:07,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4970 states, 3244 states have (on average 1.3276818742293466) internal successors, (4307), 3333 states have internal predecessors, (4307), 1353 states have call successors, (1353), 351 states have call predecessors, (1353), 372 states have return successors, (1498), 1325 states have call predecessors, (1498), 1352 states have call successors, (1498) [2022-11-19 07:32:07,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4970 states to 4970 states and 7158 transitions. [2022-11-19 07:32:07,420 INFO L78 Accepts]: Start accepts. Automaton has 4970 states and 7158 transitions. Word has length 174 [2022-11-19 07:32:07,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:07,421 INFO L495 AbstractCegarLoop]: Abstraction has 4970 states and 7158 transitions. [2022-11-19 07:32:07,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:32:07,421 INFO L276 IsEmpty]: Start isEmpty. Operand 4970 states and 7158 transitions. [2022-11-19 07:32:07,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-19 07:32:07,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:07,436 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 07:32:07,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:32:07,436 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:07,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:07,437 INFO L85 PathProgramCache]: Analyzing trace with hash -721138269, now seen corresponding path program 1 times [2022-11-19 07:32:07,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:07,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456535189] [2022-11-19 07:32:07,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:07,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:08,205 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-19 07:32:08,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:08,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456535189] [2022-11-19 07:32:08,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456535189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:08,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:32:08,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:32:08,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597594693] [2022-11-19 07:32:08,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:08,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:32:08,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:08,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:32:08,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:32:08,208 INFO L87 Difference]: Start difference. First operand 4970 states and 7158 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:32:10,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:13,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:15,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:17,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:17,026 INFO L93 Difference]: Finished difference Result 14144 states and 20338 transitions. [2022-11-19 07:32:17,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:32:17,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 176 [2022-11-19 07:32:17,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:17,088 INFO L225 Difference]: With dead ends: 14144 [2022-11-19 07:32:17,089 INFO L226 Difference]: Without dead ends: 9181 [2022-11-19 07:32:17,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:32:17,116 INFO L413 NwaCegarLoop]: 716 mSDtfsCounter, 608 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 2713 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:17,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 2713 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 382 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-11-19 07:32:17,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9181 states. [2022-11-19 07:32:17,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9181 to 9109. [2022-11-19 07:32:17,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9109 states, 5935 states have (on average 1.328390901432182) internal successors, (7884), 6132 states have internal predecessors, (7884), 2476 states have call successors, (2476), 654 states have call predecessors, (2476), 697 states have return successors, (2727), 2396 states have call predecessors, (2727), 2475 states have call successors, (2727) [2022-11-19 07:32:17,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9109 states to 9109 states and 13087 transitions. [2022-11-19 07:32:17,793 INFO L78 Accepts]: Start accepts. Automaton has 9109 states and 13087 transitions. Word has length 176 [2022-11-19 07:32:17,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:17,796 INFO L495 AbstractCegarLoop]: Abstraction has 9109 states and 13087 transitions. [2022-11-19 07:32:17,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:32:17,797 INFO L276 IsEmpty]: Start isEmpty. Operand 9109 states and 13087 transitions. [2022-11-19 07:32:17,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-19 07:32:17,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:17,828 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 07:32:17,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:32:17,829 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:17,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:17,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1204530022, now seen corresponding path program 1 times [2022-11-19 07:32:17,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:17,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341864164] [2022-11-19 07:32:17,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:17,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:18,680 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-19 07:32:18,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:18,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341864164] [2022-11-19 07:32:18,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341864164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:18,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:32:18,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:32:18,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857265023] [2022-11-19 07:32:18,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:18,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:32:18,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:18,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:32:18,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:32:18,682 INFO L87 Difference]: Start difference. First operand 9109 states and 13087 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:32:20,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:23,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:25,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:26,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:26,702 INFO L93 Difference]: Finished difference Result 14096 states and 20265 transitions. [2022-11-19 07:32:26,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:32:26,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 177 [2022-11-19 07:32:26,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:26,760 INFO L225 Difference]: With dead ends: 14096 [2022-11-19 07:32:26,760 INFO L226 Difference]: Without dead ends: 8997 [2022-11-19 07:32:26,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:32:26,787 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 589 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:26,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 1945 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 288 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-11-19 07:32:26,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8997 states. [2022-11-19 07:32:27,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8997 to 8985. [2022-11-19 07:32:27,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8985 states, 5837 states have (on average 1.325338358745931) internal successors, (7736), 6020 states have internal predecessors, (7736), 2466 states have call successors, (2466), 654 states have call predecessors, (2466), 681 states have return successors, (2657), 2384 states have call predecessors, (2657), 2465 states have call successors, (2657) [2022-11-19 07:32:27,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8985 states to 8985 states and 12859 transitions. [2022-11-19 07:32:27,553 INFO L78 Accepts]: Start accepts. Automaton has 8985 states and 12859 transitions. Word has length 177 [2022-11-19 07:32:27,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:27,554 INFO L495 AbstractCegarLoop]: Abstraction has 8985 states and 12859 transitions. [2022-11-19 07:32:27,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:32:27,555 INFO L276 IsEmpty]: Start isEmpty. Operand 8985 states and 12859 transitions. [2022-11-19 07:32:27,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-19 07:32:27,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:27,579 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 07:32:27,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:32:27,580 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:27,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:27,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1475292585, now seen corresponding path program 1 times [2022-11-19 07:32:27,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:27,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157192588] [2022-11-19 07:32:27,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:27,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:28,433 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-19 07:32:28,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:28,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157192588] [2022-11-19 07:32:28,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157192588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:28,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:32:28,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:32:28,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663378347] [2022-11-19 07:32:28,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:28,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:32:28,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:28,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:32:28,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:32:28,436 INFO L87 Difference]: Start difference. First operand 8985 states and 12859 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:32:30,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:33,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:35,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:36,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:36,752 INFO L93 Difference]: Finished difference Result 15524 states and 22265 transitions. [2022-11-19 07:32:36,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:32:36,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 175 [2022-11-19 07:32:36,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:36,815 INFO L225 Difference]: With dead ends: 15524 [2022-11-19 07:32:36,815 INFO L226 Difference]: Without dead ends: 9051 [2022-11-19 07:32:36,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:32:36,851 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 611 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 2703 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:36,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 2703 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 394 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-11-19 07:32:36,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9051 states. [2022-11-19 07:32:37,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9051 to 8985. [2022-11-19 07:32:37,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8985 states, 5837 states have (on average 1.325338358745931) internal successors, (7736), 6020 states have internal predecessors, (7736), 2466 states have call successors, (2466), 654 states have call predecessors, (2466), 681 states have return successors, (2629), 2384 states have call predecessors, (2629), 2465 states have call successors, (2629) [2022-11-19 07:32:37,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8985 states to 8985 states and 12831 transitions. [2022-11-19 07:32:37,645 INFO L78 Accepts]: Start accepts. Automaton has 8985 states and 12831 transitions. Word has length 175 [2022-11-19 07:32:37,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:37,646 INFO L495 AbstractCegarLoop]: Abstraction has 8985 states and 12831 transitions. [2022-11-19 07:32:37,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:32:37,647 INFO L276 IsEmpty]: Start isEmpty. Operand 8985 states and 12831 transitions. [2022-11-19 07:32:37,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-19 07:32:37,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:37,667 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 07:32:37,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:32:37,667 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:37,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:37,668 INFO L85 PathProgramCache]: Analyzing trace with hash -2032078513, now seen corresponding path program 1 times [2022-11-19 07:32:37,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:37,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676309500] [2022-11-19 07:32:37,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:37,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:38,409 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-19 07:32:38,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:38,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676309500] [2022-11-19 07:32:38,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676309500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:38,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:32:38,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:32:38,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078662461] [2022-11-19 07:32:38,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:38,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:32:38,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:38,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:32:38,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:32:38,412 INFO L87 Difference]: Start difference. First operand 8985 states and 12831 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:32:40,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:42,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:45,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:46,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:46,745 INFO L93 Difference]: Finished difference Result 15524 states and 22213 transitions. [2022-11-19 07:32:46,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:32:46,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 176 [2022-11-19 07:32:46,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:46,790 INFO L225 Difference]: With dead ends: 15524 [2022-11-19 07:32:46,790 INFO L226 Difference]: Without dead ends: 8771 [2022-11-19 07:32:46,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:32:46,820 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 610 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 2703 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:46,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 2703 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 388 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-11-19 07:32:46,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8771 states. [2022-11-19 07:32:47,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8771 to 8713. [2022-11-19 07:32:47,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8713 states, 5652 states have (on average 1.3248407643312101) internal successors, (7488), 5825 states have internal predecessors, (7488), 2415 states have call successors, (2415), 632 states have call predecessors, (2415), 645 states have return successors, (2538), 2329 states have call predecessors, (2538), 2414 states have call successors, (2538) [2022-11-19 07:32:47,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8713 states to 8713 states and 12441 transitions. [2022-11-19 07:32:47,621 INFO L78 Accepts]: Start accepts. Automaton has 8713 states and 12441 transitions. Word has length 176 [2022-11-19 07:32:47,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:47,622 INFO L495 AbstractCegarLoop]: Abstraction has 8713 states and 12441 transitions. [2022-11-19 07:32:47,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:32:47,622 INFO L276 IsEmpty]: Start isEmpty. Operand 8713 states and 12441 transitions. [2022-11-19 07:32:47,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-19 07:32:47,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:47,647 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 07:32:47,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 07:32:47,647 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:47,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:47,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1978044384, now seen corresponding path program 1 times [2022-11-19 07:32:47,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:47,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355208943] [2022-11-19 07:32:47,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:47,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:48,773 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-11-19 07:32:48,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:48,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355208943] [2022-11-19 07:32:48,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355208943] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:32:48,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068823549] [2022-11-19 07:32:48,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:48,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:48,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:32:48,779 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:32:48,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:32:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:50,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 3850 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:32:50,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:51,974 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-19 07:32:51,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:32:53,206 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-11-19 07:32:53,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068823549] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:32:53,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [546136191] [2022-11-19 07:32:53,241 INFO L159 IcfgInterpreter]: Started Sifa with 104 locations of interest [2022-11-19 07:32:53,241 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:32:53,245 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:32:53,251 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:32:53,252 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:32:54,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:55,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:55,655 INFO L217 Elim1Store]: Index analysis took 291 ms [2022-11-19 07:32:56,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2022-11-19 07:32:58,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:58,337 INFO L217 Elim1Store]: Index analysis took 134 ms [2022-11-19 07:32:58,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 78 treesize of output 74 [2022-11-19 07:32:58,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:58,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:58,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:59,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:59,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:59,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:59,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:59,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:59,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:59,386 INFO L217 Elim1Store]: Index analysis took 689 ms [2022-11-19 07:33:00,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 45 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 80 [2022-11-19 07:33:01,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:01,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 71 treesize of output 71 [2022-11-19 07:33:01,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 45 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 82 [2022-11-19 07:33:01,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:01,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 31 treesize of output 31 [2022-11-19 07:33:01,496 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 9 [2022-11-19 07:33:01,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:01,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:01,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:01,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:01,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:01,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:01,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:01,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:01,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:01,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:01,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:01,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 585 treesize of output 505 [2022-11-19 07:33:02,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:03,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:03,634 INFO L217 Elim1Store]: Index analysis took 458 ms [2022-11-19 07:33:04,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2022-11-19 07:33:06,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:06,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 98 treesize of output 94 [2022-11-19 07:33:06,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:06,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:06,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:06,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:06,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:06,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:06,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:06,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:06,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:06,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:06,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:06,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:06,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:06,453 INFO L217 Elim1Store]: Index analysis took 265 ms [2022-11-19 07:33:06,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 91 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 116 [2022-11-19 07:33:07,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:07,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 61 treesize of output 61 [2022-11-19 07:33:07,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 64 [2022-11-19 07:33:08,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:08,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:08,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:08,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:08,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:08,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:08,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:08,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:08,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:08,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:08,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:08,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:08,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 593 treesize of output 455 [2022-11-19 07:33:09,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:33:10,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:10,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:10,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:10,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:10,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:10,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:10,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:10,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:10,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:10,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:10,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:10,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:10,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 593 treesize of output 455 [2022-11-19 07:33:10,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:33:14,146 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:33:14,155 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:33:14,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:14,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:14,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:14,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:14,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:14,470 INFO L350 Elim1Store]: Elim1 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 42 treesize of output 44 [2022-11-19 07:33:14,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 106 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 136 [2022-11-19 07:33:14,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 92 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 157 [2022-11-19 07:33:15,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:15,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:15,481 INFO L217 Elim1Store]: Index analysis took 295 ms [2022-11-19 07:33:20,107 INFO L321 Elim1Store]: treesize reduction 112, result has 14.5 percent of original size [2022-11-19 07:33:20,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 36 [2022-11-19 07:33:20,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:20,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:20,518 INFO L217 Elim1Store]: Index analysis took 215 ms [2022-11-19 07:33:23,440 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-19 07:33:23,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 52 [2022-11-19 07:33:23,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:23,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:23,803 INFO L217 Elim1Store]: Index analysis took 205 ms [2022-11-19 07:33:25,709 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-19 07:33:25,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 65 [2022-11-19 07:33:25,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:25,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:25,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:25,987 INFO L217 Elim1Store]: Index analysis took 211 ms [2022-11-19 07:33:28,262 INFO L321 Elim1Store]: treesize reduction 84, result has 25.0 percent of original size [2022-11-19 07:33:28,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 83 [2022-11-19 07:33:28,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:28,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:28,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:28,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:28,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:28,483 INFO L217 Elim1Store]: Index analysis took 133 ms [2022-11-19 07:33:30,329 INFO L321 Elim1Store]: treesize reduction 136, result has 21.4 percent of original size [2022-11-19 07:33:30,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 97 treesize of output 122 [2022-11-19 07:33:30,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:30,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:30,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:30,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:31,069 INFO L321 Elim1Store]: treesize reduction 83, result has 18.6 percent of original size [2022-11-19 07:33:31,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 105 treesize of output 107 [2022-11-19 07:33:31,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:31,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:31,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:31,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:31,665 INFO L321 Elim1Store]: treesize reduction 83, result has 18.6 percent of original size [2022-11-19 07:33:31,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 87 treesize of output 89 [2022-11-19 07:33:31,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:31,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:31,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:31,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:32,035 INFO L321 Elim1Store]: treesize reduction 83, result has 18.6 percent of original size [2022-11-19 07:33:32,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 87 treesize of output 89 [2022-11-19 07:33:32,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:32,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:32,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:32,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:32,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:32,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:32,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:32,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:32,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:32,505 INFO L321 Elim1Store]: treesize reduction 312, result has 17.0 percent of original size [2022-11-19 07:33:32,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 46 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 106 treesize of output 188 [2022-11-19 07:33:32,838 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-19 07:33:32,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 21 [2022-11-19 07:33:33,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:34,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:34,053 INFO L217 Elim1Store]: Index analysis took 467 ms [2022-11-19 07:33:38,767 INFO L321 Elim1Store]: treesize reduction 112, result has 14.5 percent of original size [2022-11-19 07:33:38,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 36 [2022-11-19 07:33:39,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:39,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:39,331 INFO L217 Elim1Store]: Index analysis took 372 ms [2022-11-19 07:33:42,211 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-19 07:33:42,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 52 [2022-11-19 07:33:42,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:42,693 INFO L217 Elim1Store]: Index analysis took 327 ms [2022-11-19 07:33:45,057 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-19 07:33:45,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 65 [2022-11-19 07:33:45,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:45,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:45,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:45,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:45,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:45,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:45,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:45,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:45,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:45,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:45,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:47,770 INFO L321 Elim1Store]: treesize reduction 640, result has 13.5 percent of original size [2022-11-19 07:33:47,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 68 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 116 treesize of output 227 [2022-11-19 07:33:47,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:47,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:47,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:47,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:47,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:48,155 INFO L321 Elim1Store]: treesize reduction 112, result has 20.0 percent of original size [2022-11-19 07:33:48,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 175 treesize of output 188 [2022-11-19 07:33:48,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:48,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:48,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:48,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:48,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:48,354 INFO L321 Elim1Store]: treesize reduction 106, result has 20.9 percent of original size [2022-11-19 07:33:48,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 97 treesize of output 125 [2022-11-19 07:33:48,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:33:48,731 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:33:48,734 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:33:49,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 239 [2022-11-19 07:33:49,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 43 [2022-11-19 07:33:49,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 61 [2022-11-19 07:33:49,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 239 [2022-11-19 07:33:49,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 61 [2022-11-19 07:33:49,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:49,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 43 [2022-11-19 07:33:49,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 239 [2022-11-19 07:33:50,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 61 [2022-11-19 07:33:50,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 43 [2022-11-19 07:33:50,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 239 [2022-11-19 07:33:50,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 61 [2022-11-19 07:33:50,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:33:50,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 43 [2022-11-19 07:34:00,095 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:34:07,258 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:34:26,745 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:34:33,584 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:34:41,100 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_irq_1 with input of size 562 for LOIs [2022-11-19 07:34:42,350 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_error with input of size 542 for LOIs [2022-11-19 07:34:42,571 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 165 for LOIs [2022-11-19 07:34:42,620 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:40:43,339 WARN L233 SmtUtils]: Spent 5.78m on a formula simplification that was a NOOP. DAG size: 1046 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:41:14,612 WARN L233 SmtUtils]: Spent 11.22s on a formula simplification. DAG size of input: 630 DAG size of output: 513 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:41:24,339 WARN L233 SmtUtils]: Spent 9.25s on a formula simplification. DAG size of input: 638 DAG size of output: 456 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:41:34,275 WARN L233 SmtUtils]: Spent 9.37s on a formula simplification. DAG size of input: 640 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:41:43,864 WARN L233 SmtUtils]: Spent 9.06s on a formula simplification. DAG size of input: 630 DAG size of output: 448 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:42:15,136 WARN L233 SmtUtils]: Spent 9.26s on a formula simplification. DAG size of input: 643 DAG size of output: 461 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:42:25,005 WARN L233 SmtUtils]: Spent 9.24s on a formula simplification. DAG size of input: 631 DAG size of output: 449 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:42:35,460 WARN L233 SmtUtils]: Spent 9.72s on a formula simplification. DAG size of input: 642 DAG size of output: 460 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:42:45,451 WARN L233 SmtUtils]: Spent 9.30s on a formula simplification. DAG size of input: 644 DAG size of output: 462 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:42:55,105 WARN L233 SmtUtils]: Spent 8.94s on a formula simplification. DAG size of input: 634 DAG size of output: 452 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:43:06,645 WARN L233 SmtUtils]: Spent 10.85s on a formula simplification. DAG size of input: 652 DAG size of output: 534 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:43:18,319 WARN L233 SmtUtils]: Spent 10.93s on a formula simplification. DAG size of input: 654 DAG size of output: 536 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:43:29,890 WARN L233 SmtUtils]: Spent 10.83s on a formula simplification. DAG size of input: 654 DAG size of output: 536 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:43:41,942 WARN L233 SmtUtils]: Spent 11.29s on a formula simplification. DAG size of input: 670 DAG size of output: 549 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:43:49,675 WARN L233 SmtUtils]: Spent 6.93s on a formula simplification. DAG size of input: 671 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:43:49,681 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '191117#(and (= ~ldv_state_variable_2~0 1) (= ~ldv_irq_line_2_1~0 0) (= ~ldv_irq_dev_2_1~0.offset 0) (= ~ldv_irq_data_2_3~0.base 0) (= |~#mrf24j40_driver~0.offset| 0) (<= ~ldv_retval_1~0 2147483647) (not (= ~ldv_retval_1~0 0)) (= |~#set_impl~0.offset| 0) (= ~ldv_irq_dev_1_3~0.offset 0) (= ~mrf24j40_driver_group0~0.base 0) (= ~ldv_irq_dev_1_3~0.base 0) (= ~ldv_irq_data_1_1~0.offset 0) (= ~ldv_irq_dev_2_2~0.base 0) (= ~ldv_irq_line_1_2~0 0) (= ~ldv_irq_data_1_0~0.base 0) (= ~ldv_irq_line_1_0~0 0) (= ~ldv_irq_dev_2_1~0.base 0) (= ~ldv_irq_data_2_3~0.offset 0) (= ~LDV_SKBS~0.base 0) (= ~ldv_irq_line_2_0~0 0) (= ~ldv_irq_dev_2_2~0.offset 0) (= ~mrf24j40_ops_group0~0.offset 0) (= ~ldv_state_variable_4~0 0) (= ~ldv_irq_dev_1_0~0.offset 0) (= ~mrf24j40_ops_group0~0.base 0) (= ~LDV_SKBS~0.offset 0) (= ((as const (Array Int Int)) 0) ~__mod_spi__mrf24j40_ids_device_table~0.name) (= |~#mrf24j40_ids~0.offset| 0) (= ~ldv_irq_1_3~0 0) (= ~ldv_irq_data_1_3~0.base 0) (= ~ldv_irq_2_2~0 0) (= ~ldv_irq_1_0~0 0) (<= 0 (+ ~ldv_retval_1~0 2147483648)) (= ~ldv_irq_dev_1_1~0.base 0) (= ~ldv_irq_dev_1_1~0.offset 0) (= ~ldv_irq_dev_2_0~0.base 0) (= ~ldv_irq_2_3~0 0) (= ~ldv_irq_2_1~0 0) (= ~ldv_irq_dev_1_2~0.offset 0) (= |~#mrf24j40_ops~0.offset| 0) (= ~ldv_irq_2_0~0 0) (= ~ldv_state_variable_0~0 2) (= ~ldv_state_variable_1~0 1) (= ~ldv_irq_data_1_2~0.base 0) (= ~ref_cnt~0 0) (= ~ldv_irq_line_2_3~0 0) (= ~ldv_irq_dev_1_2~0.base 0) (= ~ldv_irq_line_2_2~0 0) (= |#NULL.offset| 0) (= ~ldv_irq_data_1_0~0.offset 0) (= ~ldv_irq_dev_2_3~0.base 0) (= ~ldv_irq_line_1_1~0 0) (= 92 |~#mrf24j40_ops~0.base|) (= ~ldv_retval_0~0 0) (= 91 |~#mrf24j40_ids~0.base|) (= ~__mod_spi__mrf24j40_ids_device_table~0.driver_data 0) (= ~ldv_irq_data_2_1~0.offset 0) (= ~mrf24j40_driver_group0~0.offset 0) (= ~ldv_irq_1_1~0 0) (= ~ldv_irq_data_1_1~0.base 0) (= ~ldv_irq_data_2_0~0.base 0) (= ~ldv_irq_data_1_3~0.offset 0) (= ~ldv_irq_line_1_3~0 0) (= |~#mrf24j40_driver~0.base| 93) (= ~ldv_irq_dev_2_3~0.offset 0) (= ~ldv_state_variable_3~0 0) (= ~ldv_irq_data_1_2~0.offset 0) (= (ite (= ~last_index~0 0) 1 0) 0) (= ~ldv_retval_2~0 0) (= ~ldv_irq_1_2~0 0) (= 0 ~ldv_irq_dev_1_0~0.base) (= ~ldv_irq_data_2_2~0.offset 0) (= ~ldv_irq_data_2_0~0.offset 0) (< 0 |#StackHeapBarrier|) (= ~ldv_irq_data_2_1~0.base 0) (= ~ldv_irq_dev_2_0~0.offset 0) (= |~#set_impl~0.base| 90) (= |#NULL.base| 0) (= ~ldv_irq_data_2_2~0.base 0))' at error location [2022-11-19 07:43:49,681 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:43:49,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:43:49,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 19 [2022-11-19 07:43:49,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24366212] [2022-11-19 07:43:49,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:43:49,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-19 07:43:49,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:49,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-19 07:43:49,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=2097, Unknown=0, NotChecked=0, Total=2352 [2022-11-19 07:43:49,685 INFO L87 Difference]: Start difference. First operand 8713 states and 12441 transitions. Second operand has 19 states, 19 states have (on average 8.526315789473685) internal successors, (162), 16 states have internal predecessors, (162), 8 states have call successors, (46), 3 states have call predecessors, (46), 8 states have return successors, (47), 10 states have call predecessors, (47), 7 states have call successors, (47) [2022-11-19 07:43:51,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:44:04,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:44:12,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:44:18,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:18,568 INFO L93 Difference]: Finished difference Result 27491 states and 39358 transitions. [2022-11-19 07:44:18,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-19 07:44:18,569 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.526315789473685) internal successors, (162), 16 states have internal predecessors, (162), 8 states have call successors, (46), 3 states have call predecessors, (46), 8 states have return successors, (47), 10 states have call predecessors, (47), 7 states have call successors, (47) Word has length 186 [2022-11-19 07:44:18,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:18,671 INFO L225 Difference]: With dead ends: 27491 [2022-11-19 07:44:18,671 INFO L226 Difference]: Without dead ends: 20522 [2022-11-19 07:44:18,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 515 SyntacticMatches, 3 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2083 ImplicationChecksByTransitivity, 559.5s TimeCoverageRelationStatistics Valid=702, Invalid=5940, Unknown=0, NotChecked=0, Total=6642 [2022-11-19 07:44:18,708 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 2409 mSDsluCounter, 7657 mSDsCounter, 0 mSdLazyCounter, 2918 mSolverCounterSat, 501 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2441 SdHoareTripleChecker+Valid, 8581 SdHoareTripleChecker+Invalid, 3422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 2918 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:18,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2441 Valid, 8581 Invalid, 3422 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [501 Valid, 2918 Invalid, 3 Unknown, 0 Unchecked, 16.1s Time] [2022-11-19 07:44:18,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20522 states. [2022-11-19 07:44:20,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20522 to 18057. [2022-11-19 07:44:20,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18057 states, 11710 states have (on average 1.3258753202391118) internal successors, (15526), 12147 states have internal predecessors, (15526), 4985 states have call successors, (4985), 1302 states have call predecessors, (4985), 1361 states have return successors, (5372), 4761 states have call predecessors, (5372), 4984 states have call successors, (5372) [2022-11-19 07:44:20,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18057 states to 18057 states and 25883 transitions. [2022-11-19 07:44:20,180 INFO L78 Accepts]: Start accepts. Automaton has 18057 states and 25883 transitions. Word has length 186 [2022-11-19 07:44:20,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:20,181 INFO L495 AbstractCegarLoop]: Abstraction has 18057 states and 25883 transitions. [2022-11-19 07:44:20,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.526315789473685) internal successors, (162), 16 states have internal predecessors, (162), 8 states have call successors, (46), 3 states have call predecessors, (46), 8 states have return successors, (47), 10 states have call predecessors, (47), 7 states have call successors, (47) [2022-11-19 07:44:20,181 INFO L276 IsEmpty]: Start isEmpty. Operand 18057 states and 25883 transitions. [2022-11-19 07:44:20,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-19 07:44:20,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:20,349 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 07:44:20,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:44:20,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:44:20,560 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:44:20,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:20,561 INFO L85 PathProgramCache]: Analyzing trace with hash 668432560, now seen corresponding path program 1 times [2022-11-19 07:44:20,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:20,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750107181] [2022-11-19 07:44:20,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:20,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:21,602 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-11-19 07:44:21,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:21,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750107181] [2022-11-19 07:44:21,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750107181] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:44:21,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194659108] [2022-11-19 07:44:21,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:21,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:44:21,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:44:21,604 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:44:21,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127dcccb-76e2-48fa-8d74-75d5e38681f5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:44:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:23,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 3852 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:44:23,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:44:24,516 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-19 07:44:24,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:44:25,475 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-11-19 07:44:25,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194659108] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:44:25,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1739196757] [2022-11-19 07:44:25,481 INFO L159 IcfgInterpreter]: Started Sifa with 107 locations of interest [2022-11-19 07:44:25,481 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:44:25,482 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:44:25,482 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:44:25,482 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:44:26,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:27,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:27,367 INFO L217 Elim1Store]: Index analysis took 389 ms [2022-11-19 07:44:27,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2022-11-19 07:44:29,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:29,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 78 treesize of output 74 [2022-11-19 07:44:29,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:30,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:30,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:30,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:30,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:30,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:30,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:30,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:30,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:30,511 INFO L217 Elim1Store]: Index analysis took 623 ms [2022-11-19 07:44:31,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 45 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 80 [2022-11-19 07:44:32,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:32,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 71 treesize of output 71 [2022-11-19 07:44:32,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 45 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 82 [2022-11-19 07:44:32,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:32,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 31 treesize of output 31 [2022-11-19 07:44:32,291 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 9 [2022-11-19 07:44:32,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:32,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:32,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:32,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:32,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:32,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:32,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:32,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:32,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:32,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:32,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:32,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 585 treesize of output 505 [2022-11-19 07:44:33,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:33,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:33,902 INFO L217 Elim1Store]: Index analysis took 162 ms [2022-11-19 07:44:34,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2022-11-19 07:44:36,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:36,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 98 treesize of output 94 [2022-11-19 07:44:36,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:36,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:36,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:36,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:36,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:36,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:36,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:36,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:36,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:36,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:36,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:36,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:36,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:36,609 INFO L217 Elim1Store]: Index analysis took 259 ms [2022-11-19 07:44:37,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 91 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 116 [2022-11-19 07:44:37,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:37,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 61 treesize of output 61 [2022-11-19 07:44:37,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 64 [2022-11-19 07:44:38,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:38,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:38,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:38,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:38,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:38,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:38,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:38,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:38,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:38,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:38,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:38,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:38,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 593 treesize of output 455 [2022-11-19 07:44:38,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:44:39,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:39,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:39,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:39,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:39,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:39,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:39,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:39,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:39,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:39,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:39,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:39,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:39,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 593 treesize of output 455 [2022-11-19 07:44:39,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:44:42,709 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:44:42,718 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:44:42,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:42,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:42,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:42,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:42,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:43,000 INFO L350 Elim1Store]: Elim1 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 42 treesize of output 44 [2022-11-19 07:44:43,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 106 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 136 [2022-11-19 07:44:43,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 92 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 157 [2022-11-19 07:44:43,274 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-19 07:44:43,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 21 [2022-11-19 07:44:43,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:44:44,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:44,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:44,333 INFO L217 Elim1Store]: Index analysis took 463 ms [2022-11-19 07:44:49,238 INFO L321 Elim1Store]: treesize reduction 112, result has 14.5 percent of original size [2022-11-19 07:44:49,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 36 [2022-11-19 07:44:49,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:49,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:49,717 INFO L217 Elim1Store]: Index analysis took 302 ms [2022-11-19 07:44:52,969 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-19 07:44:52,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 52 [2022-11-19 07:44:53,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:53,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:53,416 INFO L217 Elim1Store]: Index analysis took 303 ms