./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 52fc70d7844651686a4c27e057f507f0498e7d5f7c17f07a035699d1630f6ea2 --- 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-38b53e6 [2022-11-26 01:08:59,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:08:59,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:08:59,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:08:59,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:08:59,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:08:59,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:08:59,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:08:59,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:08:59,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:08:59,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:08:59,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:08:59,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:08:59,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:08:59,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:08:59,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:08:59,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:08:59,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:08:59,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:08:59,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:08:59,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:08:59,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:08:59,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:08:59,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:08:59,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:08:59,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:08:59,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:08:59,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:08:59,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:08:59,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:08:59,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:08:59,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:08:59,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:08:59,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:08:59,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:08:59,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:08:59,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:08:59,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:08:59,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:08:59,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:08:59,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:08:59,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 01:08:59,870 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:08:59,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:08:59,877 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:08:59,878 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:08:59,879 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:08:59,879 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:08:59,879 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:08:59,879 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:08:59,879 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:08:59,880 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:08:59,881 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:08:59,881 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:08:59,881 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:08:59,881 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:08:59,882 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:08:59,882 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:08:59,882 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:08:59,882 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:08:59,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:08:59,883 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 01:08:59,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:08:59,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 01:08:59,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:08:59,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:08:59,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:08:59,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:08:59,885 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 01:08:59,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:08:59,885 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:08:59,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:08:59,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:08:59,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:08:59,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:08:59,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:08:59,887 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:08:59,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:08:59,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:08:59,888 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:08:59,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:08:59,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:08:59,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:08:59,888 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_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52fc70d7844651686a4c27e057f507f0498e7d5f7c17f07a035699d1630f6ea2 [2022-11-26 01:09:00,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:09:00,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:09:00,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:09:00,202 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:09:00,202 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:09:00,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/forester-heap/dll-reverse.i [2022-11-26 01:09:03,300 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:09:03,533 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:09:03,534 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/sv-benchmarks/c/forester-heap/dll-reverse.i [2022-11-26 01:09:03,547 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/data/38f56964e/593d1c38758d4ed0b45ba3425a7187b7/FLAG55188c019 [2022-11-26 01:09:03,563 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/data/38f56964e/593d1c38758d4ed0b45ba3425a7187b7 [2022-11-26 01:09:03,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:09:03,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:09:03,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:09:03,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:09:03,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:09:03,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:09:03" (1/1) ... [2022-11-26 01:09:03,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d24bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:03, skipping insertion in model container [2022-11-26 01:09:03,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:09:03" (1/1) ... [2022-11-26 01:09:03,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:09:03,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:09:04,033 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/sv-benchmarks/c/forester-heap/dll-reverse.i[22309,22322] [2022-11-26 01:09:04,039 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/sv-benchmarks/c/forester-heap/dll-reverse.i[22394,22407] [2022-11-26 01:09:04,048 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/sv-benchmarks/c/forester-heap/dll-reverse.i[22924,22937] [2022-11-26 01:09:04,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:09:04,073 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:09:04,131 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/sv-benchmarks/c/forester-heap/dll-reverse.i[22309,22322] [2022-11-26 01:09:04,134 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/sv-benchmarks/c/forester-heap/dll-reverse.i[22394,22407] [2022-11-26 01:09:04,140 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/sv-benchmarks/c/forester-heap/dll-reverse.i[22924,22937] [2022-11-26 01:09:04,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:09:04,170 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:09:04,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:04 WrapperNode [2022-11-26 01:09:04,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:09:04,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:09:04,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:09:04,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:09:04,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:04" (1/1) ... [2022-11-26 01:09:04,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:04" (1/1) ... [2022-11-26 01:09:04,221 INFO L138 Inliner]: procedures = 119, calls = 41, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 144 [2022-11-26 01:09:04,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:09:04,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:09:04,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:09:04,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:09:04,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:04" (1/1) ... [2022-11-26 01:09:04,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:04" (1/1) ... [2022-11-26 01:09:04,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:04" (1/1) ... [2022-11-26 01:09:04,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:04" (1/1) ... [2022-11-26 01:09:04,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:04" (1/1) ... [2022-11-26 01:09:04,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:04" (1/1) ... [2022-11-26 01:09:04,249 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:04" (1/1) ... [2022-11-26 01:09:04,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:04" (1/1) ... [2022-11-26 01:09:04,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:09:04,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:09:04,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:09:04,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:09:04,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:04" (1/1) ... [2022-11-26 01:09:04,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:09:04,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:09:04,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:09:04,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:09:04,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 01:09:04,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 01:09:04,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 01:09:04,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:09:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 01:09:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 01:09:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:09:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 01:09:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:09:04,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:09:04,493 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:09:04,496 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:09:04,868 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:09:05,019 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:09:05,025 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-26 01:09:05,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:09:05 BoogieIcfgContainer [2022-11-26 01:09:05,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:09:05,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:09:05,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:09:05,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:09:05,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:09:03" (1/3) ... [2022-11-26 01:09:05,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76932d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:09:05, skipping insertion in model container [2022-11-26 01:09:05,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:09:04" (2/3) ... [2022-11-26 01:09:05,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76932d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:09:05, skipping insertion in model container [2022-11-26 01:09:05,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:09:05" (3/3) ... [2022-11-26 01:09:05,045 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-reverse.i [2022-11-26 01:09:05,066 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:09:05,068 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-26 01:09:05,130 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:09:05,137 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;@542e5577, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:09:05,137 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-26 01:09:05,141 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 24 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:05,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 01:09:05,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:09:05,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 01:09:05,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:09:05,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:09:05,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1014884411, now seen corresponding path program 1 times [2022-11-26 01:09:05,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:09:05,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251725322] [2022-11-26 01:09:05,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:05,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:09:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:09:05,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:09:05,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:09:05,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251725322] [2022-11-26 01:09:05,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251725322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:09:05,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:09:05,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:09:05,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080648983] [2022-11-26 01:09:05,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:09:05,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 01:09:05,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:09:05,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 01:09:05,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 01:09:05,374 INFO L87 Difference]: Start difference. First operand has 25 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 24 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:05,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:09:05,498 INFO L93 Difference]: Finished difference Result 47 states and 75 transitions. [2022-11-26 01:09:05,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 01:09:05,505 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-26 01:09:05,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:09:05,512 INFO L225 Difference]: With dead ends: 47 [2022-11-26 01:09:05,512 INFO L226 Difference]: Without dead ends: 23 [2022-11-26 01:09:05,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 01:09:05,518 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:09:05,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 01:09:05,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-26 01:09:05,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-26 01:09:05,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 20 states have (on average 1.3) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:05,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-11-26 01:09:05,547 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 6 [2022-11-26 01:09:05,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:09:05,547 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-11-26 01:09:05,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:05,548 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-11-26 01:09:05,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 01:09:05,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:09:05,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:09:05,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:09:05,549 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:09:05,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:09:05,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1773969138, now seen corresponding path program 1 times [2022-11-26 01:09:05,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:09:05,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708338750] [2022-11-26 01:09:05,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:05,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:09:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:09:06,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:09:06,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:09:06,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708338750] [2022-11-26 01:09:06,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708338750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:09:06,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:09:06,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:09:06,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241746937] [2022-11-26 01:09:06,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:09:06,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:09:06,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:09:06,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:09:06,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:09:06,109 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:06,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:09:06,470 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2022-11-26 01:09:06,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 01:09:06,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-26 01:09:06,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:09:06,471 INFO L225 Difference]: With dead ends: 52 [2022-11-26 01:09:06,472 INFO L226 Difference]: Without dead ends: 33 [2022-11-26 01:09:06,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 01:09:06,473 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 01:09:06,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 55 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 01:09:06,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-26 01:09:06,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2022-11-26 01:09:06,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.28) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:06,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-11-26 01:09:06,480 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 8 [2022-11-26 01:09:06,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:09:06,480 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-11-26 01:09:06,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:06,481 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-11-26 01:09:06,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 01:09:06,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:09:06,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:09:06,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 01:09:06,482 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:09:06,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:09:06,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1773970388, now seen corresponding path program 1 times [2022-11-26 01:09:06,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:09:06,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482914497] [2022-11-26 01:09:06,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:06,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:09:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:09:06,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:09:06,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:09:06,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482914497] [2022-11-26 01:09:06,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482914497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:09:06,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:09:06,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:09:06,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012193555] [2022-11-26 01:09:06,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:09:06,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:09:06,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:09:06,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:09:06,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:09:06,540 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:06,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:09:06,638 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2022-11-26 01:09:06,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:09:06,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-26 01:09:06,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:09:06,640 INFO L225 Difference]: With dead ends: 47 [2022-11-26 01:09:06,640 INFO L226 Difference]: Without dead ends: 37 [2022-11-26 01:09:06,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:09:06,642 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 33 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:09:06,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 28 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 01:09:06,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-26 01:09:06,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2022-11-26 01:09:06,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 32 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:06,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2022-11-26 01:09:06,650 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 8 [2022-11-26 01:09:06,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:09:06,651 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2022-11-26 01:09:06,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:06,651 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-11-26 01:09:06,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 01:09:06,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:09:06,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:09:06,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 01:09:06,653 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:09:06,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:09:06,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1654140644, now seen corresponding path program 1 times [2022-11-26 01:09:06,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:09:06,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64292448] [2022-11-26 01:09:06,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:06,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:09:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:09:08,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:09:08,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:09:08,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64292448] [2022-11-26 01:09:08,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64292448] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:09:08,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60644291] [2022-11-26 01:09:08,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:08,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:09:08,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:09:08,147 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:09:08,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 01:09:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:09:08,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-26 01:09:08,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:09:08,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:08,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:08,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-26 01:09:08,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 01:09:08,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:08,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:08,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-26 01:09:08,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 01:09:08,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:08,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2022-11-26 01:09:08,848 INFO L321 Elim1Store]: treesize reduction 67, result has 20.2 percent of original size [2022-11-26 01:09:08,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 88 [2022-11-26 01:09:08,861 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 58 treesize of output 50 [2022-11-26 01:09:08,890 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-11-26 01:09:08,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-26 01:09:09,010 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-26 01:09:09,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 39 [2022-11-26 01:09:09,020 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 22 treesize of output 16 [2022-11-26 01:09:09,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:09:09,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:09:09,219 INFO L321 Elim1Store]: treesize reduction 14, result has 69.6 percent of original size [2022-11-26 01:09:09,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 267 treesize of output 308 [2022-11-26 01:09:09,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:09:09,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60644291] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 01:09:09,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [13648880] [2022-11-26 01:09:09,847 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-26 01:09:09,847 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 01:09:09,852 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 01:09:09,858 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 01:09:09,858 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 01:09:09,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:09,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:09,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-26 01:09:09,949 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 01:09:09,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 01:09:09,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:09,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:09,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-26 01:09:09,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:09,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:09,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:09,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 46 [2022-11-26 01:09:10,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 01:09:10,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:10,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:10,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:10,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:10,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 506 treesize of output 533 [2022-11-26 01:09:10,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:10,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:10,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:10,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:10,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:10,246 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:10,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:10,249 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:11,675 INFO L321 Elim1Store]: treesize reduction 337, result has 11.1 percent of original size [2022-11-26 01:09:11,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 495 treesize of output 443 [2022-11-26 01:09:11,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:11,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:11,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:11,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,029 INFO L321 Elim1Store]: treesize reduction 302, result has 10.9 percent of original size [2022-11-26 01:09:12,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 381 treesize of output 341 [2022-11-26 01:09:12,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,093 INFO L321 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2022-11-26 01:09:12,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 61 [2022-11-26 01:09:12,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-26 01:09:12,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 61 [2022-11-26 01:09:12,172 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 [2022-11-26 01:09:12,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,184 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 0 case distinctions, treesize of input 66 treesize of output 51 [2022-11-26 01:09:12,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 34 [2022-11-26 01:09:12,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 41 [2022-11-26 01:09:12,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 22 [2022-11-26 01:09:12,243 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 9 treesize of output 7 [2022-11-26 01:09:12,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 41 [2022-11-26 01:09:12,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 22 [2022-11-26 01:09:12,293 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 9 treesize of output 7 [2022-11-26 01:09:12,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,347 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:12,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,352 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:12,398 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-26 01:09:12,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 137 treesize of output 92 [2022-11-26 01:09:12,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:12,438 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-26 01:09:12,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 50 [2022-11-26 01:09:12,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:12,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 46 [2022-11-26 01:09:12,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:12,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:12,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:12,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:12,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:12,850 INFO L321 Elim1Store]: treesize reduction 178, result has 31.8 percent of original size [2022-11-26 01:09:12,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 445 treesize of output 450 [2022-11-26 01:09:12,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,897 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:12,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:12,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:12,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:12,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:12,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:13,041 INFO L321 Elim1Store]: treesize reduction 170, result has 20.9 percent of original size [2022-11-26 01:09:13,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 30 case distinctions, treesize of input 385 treesize of output 389 [2022-11-26 01:09:13,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:13,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:13,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:13,092 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:13,114 INFO L321 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2022-11-26 01:09:13,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 393 treesize of output 379 [2022-11-26 01:09:13,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:13,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:13,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:13,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:13,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:13,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:13,156 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-26 01:09:13,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 397 treesize of output 379 [2022-11-26 01:09:13,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 01:09:13,789 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 24 treesize of output 20 [2022-11-26 01:09:13,797 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 24 treesize of output 20 [2022-11-26 01:09:13,814 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 24 treesize of output 20 [2022-11-26 01:09:13,820 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 24 treesize of output 20 [2022-11-26 01:09:13,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 01:09:13,845 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 01:09:14,573 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '439#(and (= |ULTIMATE.start_main_~head~0#1.offset| |ULTIMATE.start_main_~x~0#1.offset|) (= 2 |ULTIMATE.start_main_~t1~0#1|) (= |ULTIMATE.start_main_~x~0#1.base| |ULTIMATE.start_main_~head~0#1.base|) (= |ULTIMATE.start_main_~head~0#1.offset| |ULTIMATE.start_main_~prev~0#1.offset|) (= |ULTIMATE.start_main_~prev~0#1.base| |ULTIMATE.start_main_~head~0#1.base|) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~x~0#1.base|) |ULTIMATE.start_main_~x~0#1.offset|)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~x~0#1.base|) |ULTIMATE.start_main_~x~0#1.offset|) 8)) |ULTIMATE.start_main_~t2~0#1|) (= |#NULL.offset| 0) (not (= |ULTIMATE.start_main_~t2~0#1| 1)) (= |ULTIMATE.start_main_~t1~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~x~0#1.base|) (+ 8 |ULTIMATE.start_main_~x~0#1.offset|))) (or (not (= |ULTIMATE.start_main_~x~0#1.base| 0)) (not (= |ULTIMATE.start_main_~x~0#1.offset| 0))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-26 01:09:14,573 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 01:09:14,573 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 01:09:14,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-26 01:09:14,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201521954] [2022-11-26 01:09:14,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 01:09:14,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 01:09:14,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:09:14,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 01:09:14,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-11-26 01:09:14,576 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:16,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:09:16,772 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2022-11-26 01:09:16,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 01:09:16,774 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-26 01:09:16,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:09:16,775 INFO L225 Difference]: With dead ends: 68 [2022-11-26 01:09:16,775 INFO L226 Difference]: Without dead ends: 62 [2022-11-26 01:09:16,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2022-11-26 01:09:16,777 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 38 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 01:09:16,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 124 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 115 Invalid, 3 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 01:09:16,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-26 01:09:16,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 42. [2022-11-26 01:09:16,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 41 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:16,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2022-11-26 01:09:16,788 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 14 [2022-11-26 01:09:16,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:09:16,788 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2022-11-26 01:09:16,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:16,789 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2022-11-26 01:09:16,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 01:09:16,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:09:16,790 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:09:16,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 01:09:16,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:09:16,996 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:09:16,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:09:16,996 INFO L85 PathProgramCache]: Analyzing trace with hash 186699056, now seen corresponding path program 2 times [2022-11-26 01:09:16,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:09:16,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272853741] [2022-11-26 01:09:16,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:16,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:09:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:09:18,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:09:18,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:09:18,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272853741] [2022-11-26 01:09:18,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272853741] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:09:18,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996225482] [2022-11-26 01:09:18,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 01:09:18,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:09:18,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:09:18,648 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:09:18,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 01:09:19,243 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-26 01:09:19,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 01:09:19,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 82 conjunts are in the unsatisfiable core [2022-11-26 01:09:19,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:09:19,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:19,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:19,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-26 01:09:19,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 01:09:19,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:19,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:19,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-26 01:09:19,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:19,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 46 [2022-11-26 01:09:19,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:19,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 52 [2022-11-26 01:09:19,514 INFO L321 Elim1Store]: treesize reduction 67, result has 20.2 percent of original size [2022-11-26 01:09:19,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 104 treesize of output 123 [2022-11-26 01:09:19,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:19,546 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-26 01:09:19,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 97 [2022-11-26 01:09:19,557 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 115 treesize of output 99 [2022-11-26 01:09:19,574 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-11-26 01:09:19,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-26 01:09:19,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 01:09:19,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2022-11-26 01:09:19,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:19,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:19,709 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 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 01:09:19,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-26 01:09:19,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-26 01:09:19,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-26 01:09:19,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-26 01:09:19,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2022-11-26 01:09:19,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2022-11-26 01:09:19,907 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:09:19,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:09:20,144 INFO L321 Elim1Store]: treesize reduction 14, result has 74.1 percent of original size [2022-11-26 01:09:20,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 277 treesize of output 321 [2022-11-26 01:09:20,210 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 01:09:20,211 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 2 case distinctions, treesize of input 14 treesize of output 19 [2022-11-26 01:09:20,351 INFO L321 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-11-26 01:09:20,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 1 [2022-11-26 01:09:20,418 INFO L321 Elim1Store]: treesize reduction 115, result has 38.5 percent of original size [2022-11-26 01:09:20,419 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 3 case distinctions, treesize of input 41 treesize of output 80 [2022-11-26 01:09:20,444 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 8 treesize of output 4 [2022-11-26 01:09:20,474 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 12 treesize of output 10 [2022-11-26 01:09:20,524 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 01:09:20,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 187 treesize of output 186 [2022-11-26 01:09:20,570 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 8 treesize of output 4 [2022-11-26 01:09:21,230 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:09:21,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996225482] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 01:09:21,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2016045843] [2022-11-26 01:09:21,233 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-26 01:09:21,233 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 01:09:21,233 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 01:09:21,233 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 01:09:21,234 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 01:09:21,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,275 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 01:09:21,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 50 [2022-11-26 01:09:21,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-26 01:09:21,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-26 01:09:21,329 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 01:09:21,330 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 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-26 01:09:21,376 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 01:09:21,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 01:09:21,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 506 treesize of output 528 [2022-11-26 01:09:21,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:21,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:21,656 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:23,137 INFO L321 Elim1Store]: treesize reduction 337, result has 11.1 percent of original size [2022-11-26 01:09:23,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 490 treesize of output 438 [2022-11-26 01:09:23,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,499 INFO L321 Elim1Store]: treesize reduction 302, result has 10.9 percent of original size [2022-11-26 01:09:23,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 421 treesize of output 385 [2022-11-26 01:09:23,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,626 INFO L321 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2022-11-26 01:09:23,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 50 [2022-11-26 01:09:23,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,676 INFO L321 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2022-11-26 01:09:23,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 102 [2022-11-26 01:09:23,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,731 INFO L321 Elim1Store]: treesize reduction 20, result has 56.5 percent of original size [2022-11-26 01:09:23,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 99 treesize of output 72 [2022-11-26 01:09:23,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 34 [2022-11-26 01:09:23,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 57 [2022-11-26 01:09:23,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,809 INFO L321 Elim1Store]: treesize reduction 67, result has 1.5 percent of original size [2022-11-26 01:09:23,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 178 treesize of output 122 [2022-11-26 01:09:23,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 97 [2022-11-26 01:09:23,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 75 [2022-11-26 01:09:23,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 55 [2022-11-26 01:09:23,861 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 9 treesize of output 7 [2022-11-26 01:09:23,869 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 9 treesize of output 7 [2022-11-26 01:09:23,878 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 [2022-11-26 01:09:23,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,932 INFO L321 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2022-11-26 01:09:23,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 61 [2022-11-26 01:09:23,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:23,987 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:24,034 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-26 01:09:24,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 158 treesize of output 109 [2022-11-26 01:09:24,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:24,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:24,059 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:24,082 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-26 01:09:24,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 46 [2022-11-26 01:09:24,121 INFO L321 Elim1Store]: treesize reduction 37, result has 11.9 percent of original size [2022-11-26 01:09:24,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 65 [2022-11-26 01:09:24,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:24,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:24,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2022-11-26 01:09:24,172 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 24 treesize of output 20 [2022-11-26 01:09:24,179 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 24 treesize of output 20 [2022-11-26 01:09:24,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 01:09:24,208 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 24 treesize of output 20 [2022-11-26 01:09:24,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 01:09:24,224 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 24 treesize of output 20 [2022-11-26 01:09:24,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 01:09:24,248 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 24 treesize of output 20 [2022-11-26 01:09:24,254 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 24 treesize of output 20 [2022-11-26 01:09:24,270 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 01:09:25,108 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '709#(and (= |ULTIMATE.start_main_~head~0#1.offset| |ULTIMATE.start_main_~x~0#1.offset|) (= 2 |ULTIMATE.start_main_~t1~0#1|) (= |ULTIMATE.start_main_~x~0#1.base| |ULTIMATE.start_main_~head~0#1.base|) (= |ULTIMATE.start_main_~head~0#1.offset| |ULTIMATE.start_main_~prev~0#1.offset|) (= |ULTIMATE.start_main_~prev~0#1.base| |ULTIMATE.start_main_~head~0#1.base|) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~x~0#1.base|) |ULTIMATE.start_main_~x~0#1.offset|)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~x~0#1.base|) |ULTIMATE.start_main_~x~0#1.offset|) 8)) |ULTIMATE.start_main_~t2~0#1|) (= |#NULL.offset| 0) (not (= |ULTIMATE.start_main_~t2~0#1| 1)) (= |ULTIMATE.start_main_~t1~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~x~0#1.base|) (+ 8 |ULTIMATE.start_main_~x~0#1.offset|))) (or (not (= |ULTIMATE.start_main_~x~0#1.base| 0)) (not (= |ULTIMATE.start_main_~x~0#1.offset| 0))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-26 01:09:25,109 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 01:09:25,109 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 01:09:25,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2022-11-26 01:09:25,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223542698] [2022-11-26 01:09:25,109 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 01:09:25,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-26 01:09:25,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:09:25,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-26 01:09:25,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2022-11-26 01:09:25,111 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 17 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:26,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:09:26,289 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2022-11-26 01:09:26,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 01:09:26,290 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 17 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-26 01:09:26,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:09:26,291 INFO L225 Difference]: With dead ends: 62 [2022-11-26 01:09:26,291 INFO L226 Difference]: Without dead ends: 60 [2022-11-26 01:09:26,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=118, Invalid=694, Unknown=0, NotChecked=0, Total=812 [2022-11-26 01:09:26,295 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 41 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:09:26,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 177 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 01:09:26,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-26 01:09:26,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 50. [2022-11-26 01:09:26,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 49 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:26,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2022-11-26 01:09:26,308 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 15 [2022-11-26 01:09:26,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:09:26,309 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2022-11-26 01:09:26,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 17 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:26,309 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2022-11-26 01:09:26,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 01:09:26,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:09:26,310 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:09:26,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 01:09:26,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:09:26,518 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:09:26,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:09:26,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1246752193, now seen corresponding path program 1 times [2022-11-26 01:09:26,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:09:26,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129191774] [2022-11-26 01:09:26,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:26,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:09:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:09:26,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 01:09:26,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:09:26,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129191774] [2022-11-26 01:09:26,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129191774] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:09:26,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770206489] [2022-11-26 01:09:26,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:26,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:09:26,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:09:26,654 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:09:26,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 01:09:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:09:26,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-26 01:09:26,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:09:26,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2022-11-26 01:09:26,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-26 01:09:26,970 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 01:09:26,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:09:27,006 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 01:09:27,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770206489] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 01:09:27,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1577696973] [2022-11-26 01:09:27,009 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-26 01:09:27,009 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 01:09:27,010 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 01:09:27,010 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 01:09:27,010 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 01:09:27,058 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 01:09:27,059 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 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-26 01:09:27,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-26 01:09:27,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,114 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 01:09:27,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 50 [2022-11-26 01:09:27,156 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 01:09:27,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 01:09:27,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-26 01:09:27,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:27,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,398 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-26 01:09:27,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 40 [2022-11-26 01:09:27,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 40 [2022-11-26 01:09:27,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,512 INFO L321 Elim1Store]: treesize reduction 95, result has 29.6 percent of original size [2022-11-26 01:09:27,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 74 [2022-11-26 01:09:27,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,545 INFO L321 Elim1Store]: treesize reduction 31, result has 26.2 percent of original size [2022-11-26 01:09:27,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 44 [2022-11-26 01:09:27,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,585 INFO L321 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2022-11-26 01:09:27,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 50 [2022-11-26 01:09:27,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,634 INFO L321 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2022-11-26 01:09:27,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 61 [2022-11-26 01:09:27,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:27,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:27,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,840 INFO L321 Elim1Store]: treesize reduction 112, result has 11.8 percent of original size [2022-11-26 01:09:27,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 25 [2022-11-26 01:09:27,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,871 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:27,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,896 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-26 01:09:27,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 33 [2022-11-26 01:09:27,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 15 [2022-11-26 01:09:27,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:27,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-26 01:09:27,948 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 [2022-11-26 01:09:27,955 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 [2022-11-26 01:09:28,113 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 01:09:28,194 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '975#(and (= |ULTIMATE.start_main_~x~0#1.offset| 0) (= |ULTIMATE.start_main_~x~0#1.base| 0) (= |ULTIMATE.start_main_~head~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-26 01:09:28,194 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 01:09:28,194 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 01:09:28,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2022-11-26 01:09:28,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030953893] [2022-11-26 01:09:28,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 01:09:28,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:09:28,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:09:28,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:09:28,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-26 01:09:28,196 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:28,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:09:28,610 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2022-11-26 01:09:28,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 01:09:28,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-26 01:09:28,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:09:28,612 INFO L225 Difference]: With dead ends: 50 [2022-11-26 01:09:28,612 INFO L226 Difference]: Without dead ends: 46 [2022-11-26 01:09:28,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-26 01:09:28,613 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 01:09:28,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 25 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 01:09:28,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-26 01:09:28,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2022-11-26 01:09:28,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.1951219512195121) internal successors, (49), 41 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:28,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2022-11-26 01:09:28,626 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 15 [2022-11-26 01:09:28,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:09:28,626 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2022-11-26 01:09:28,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:09:28,627 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2022-11-26 01:09:28,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 01:09:28,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:09:28,628 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:09:28,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 01:09:28,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-26 01:09:28,835 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:09:28,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:09:28,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1418154908, now seen corresponding path program 3 times [2022-11-26 01:09:28,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:09:28,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476208616] [2022-11-26 01:09:28,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:09:28,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:09:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:09:29,977 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:09:29,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:09:29,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476208616] [2022-11-26 01:09:29,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476208616] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:09:29,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665264203] [2022-11-26 01:09:29,978 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 01:09:29,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:09:29,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:09:29,984 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:09:30,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d46b26c-d153-446c-a088-8f38a79978ef/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 01:09:30,192 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 01:09:30,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 01:09:30,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 84 conjunts are in the unsatisfiable core [2022-11-26 01:09:30,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:09:30,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:30,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:30,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-26 01:09:30,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:30,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:30,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-26 01:09:30,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 01:09:30,504 INFO L321 Elim1Store]: treesize reduction 31, result has 13.9 percent of original size [2022-11-26 01:09:30,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 658 treesize of output 454 [2022-11-26 01:09:30,561 INFO L321 Elim1Store]: treesize reduction 59, result has 16.9 percent of original size [2022-11-26 01:09:30,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 1147 treesize of output 736 [2022-11-26 01:09:30,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:30,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:30,642 INFO L321 Elim1Store]: treesize reduction 281, result has 1.7 percent of original size [2022-11-26 01:09:30,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 665 treesize of output 627 [2022-11-26 01:09:30,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:30,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:30,700 INFO L321 Elim1Store]: treesize reduction 214, result has 2.3 percent of original size [2022-11-26 01:09:30,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 532 treesize of output 516 [2022-11-26 01:09:30,745 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 25 treesize of output 33 [2022-11-26 01:09:30,786 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 39 treesize of output 47 [2022-11-26 01:09:30,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:30,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 01:09:30,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:30,842 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 19 treesize of output 20 [2022-11-26 01:09:30,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:30,877 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 25 treesize of output 33 [2022-11-26 01:09:30,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:30,912 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 39 treesize of output 47 [2022-11-26 01:09:30,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:30,942 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 39 treesize of output 47 [2022-11-26 01:09:30,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:30,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2022-11-26 01:09:30,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 51 [2022-11-26 01:09:31,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:31,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 46 [2022-11-26 01:09:31,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:31,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-26 01:09:31,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 50 [2022-11-26 01:09:31,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:31,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 01:09:31,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:31,057 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 54 treesize of output 62 [2022-11-26 01:09:31,184 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 01:09:31,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 135 treesize of output 122 [2022-11-26 01:09:31,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:31,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 79 treesize of output 63 [2022-11-26 01:09:31,197 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 53 treesize of output 43 [2022-11-26 01:09:31,202 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 53 treesize of output 39 [2022-11-26 01:09:31,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-26 01:09:31,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 01:09:31,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 01:09:31,265 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:09:31,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:09:31,294 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|)) (.cse1 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) (and (forall ((v_ArrVal_941 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_941) .cse0) .cse1) 0)) (forall ((v_ArrVal_940 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_940) .cse0) .cse1) 0)))) is different from false [2022-11-26 01:09:31,587 INFO L321 Elim1Store]: treesize reduction 14, result has 69.6 percent of original size [2022-11-26 01:09:31,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 319 treesize of output 360 [2022-11-26 01:09:31,883 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse7 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base|))) (let ((.cse18 (select .cse7 |c_ULTIMATE.start_main_~x~0#1.offset|)) (.cse9 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base|))) (let ((.cse0 (= (select .cse9 |c_ULTIMATE.start_main_~x~0#1.offset|) 0)) (.cse16 (= .cse18 0)) (.cse8 (+ |c_ULTIMATE.start_main_~x~0#1.offset| 8))) (and (or (not .cse0) (and (forall ((v_ArrVal_920 Int)) (or (not (= (select |c_#valid| v_ArrVal_920) 0)) (forall ((v_ArrVal_903 Int) (v_ArrVal_922 Int) (v_ArrVal_921 Int) (v_ArrVal_930 Int) (v_ArrVal_941 (Array Int Int)) (v_ArrVal_933 (Array Int Int)) (v_ArrVal_910 (Array Int Int)) (v_ArrVal_924 (Array Int Int)) (v_ArrVal_915 (Array Int Int)) (v_ArrVal_925 (Array Int Int)) (v_ArrVal_927 (Array Int Int)) (v_ArrVal_938 (Array Int Int)) (v_ArrVal_918 (Array Int Int))) (= (let ((.cse6 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| (store (store .cse9 .cse8 v_ArrVal_930) |c_ULTIMATE.start_main_~x~0#1.offset| 0)))) (let ((.cse4 (select (select (store .cse6 v_ArrVal_920 v_ArrVal_924) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|)) (.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| (store (store .cse7 .cse8 v_ArrVal_921) |c_ULTIMATE.start_main_~x~0#1.offset| v_ArrVal_920)))) (let ((.cse3 (select (select (store .cse2 v_ArrVal_920 v_ArrVal_933) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|)) (.cse5 (+ .cse4 8))) (select (let ((.cse1 (store (store .cse2 v_ArrVal_920 v_ArrVal_915) .cse3 (store (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_918) v_ArrVal_920 v_ArrVal_927) .cse3) .cse4 0) .cse5 v_ArrVal_903)))) (select (store .cse1 |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_941) (select (select .cse1 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (select (select (store (store .cse6 v_ArrVal_920 v_ArrVal_938) .cse3 (store (store (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_925) v_ArrVal_920 v_ArrVal_910) .cse3) .cse4 0) .cse5 v_ArrVal_922)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))) 0)) (= v_ArrVal_920 0))) (forall ((v_ArrVal_920 Int)) (or (forall ((v_ArrVal_903 Int) (v_ArrVal_922 Int) (v_ArrVal_921 Int) (v_ArrVal_940 (Array Int Int)) (v_ArrVal_930 Int) (v_ArrVal_933 (Array Int Int)) (v_ArrVal_910 (Array Int Int)) (v_ArrVal_924 (Array Int Int)) (v_ArrVal_915 (Array Int Int)) (v_ArrVal_925 (Array Int Int)) (v_ArrVal_927 (Array Int Int)) (v_ArrVal_938 (Array Int Int)) (v_ArrVal_918 (Array Int Int))) (= (let ((.cse15 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| (store (store .cse9 .cse8 v_ArrVal_930) |c_ULTIMATE.start_main_~x~0#1.offset| 0)))) (let ((.cse13 (select (select (store .cse15 v_ArrVal_920 v_ArrVal_924) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|)) (.cse11 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| (store (store .cse7 .cse8 v_ArrVal_921) |c_ULTIMATE.start_main_~x~0#1.offset| v_ArrVal_920)))) (let ((.cse12 (select (select (store .cse11 v_ArrVal_920 v_ArrVal_933) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|)) (.cse14 (+ .cse13 8))) (let ((.cse10 (store (store .cse15 v_ArrVal_920 v_ArrVal_938) .cse12 (store (store (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_925) v_ArrVal_920 v_ArrVal_910) .cse12) .cse13 0) .cse14 v_ArrVal_922)))) (select (select (store .cse10 |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_940) (select (select (store (store .cse11 v_ArrVal_920 v_ArrVal_915) .cse12 (store (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_918) v_ArrVal_920 v_ArrVal_927) .cse12) .cse13 0) .cse14 v_ArrVal_903)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (select (select .cse10 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))))) 0)) (not (= (select |c_#valid| v_ArrVal_920) 0)) (= v_ArrVal_920 0)))) (not .cse16)) (or (and .cse0 .cse16) (and (forall ((v_ArrVal_913 (Array Int Int)) (v_ArrVal_929 (Array Int Int)) (v_ArrVal_921 Int) (v_ArrVal_940 (Array Int Int)) (v_ArrVal_930 Int)) (= (let ((.cse17 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| (store .cse9 .cse8 v_ArrVal_930)) .cse18 v_ArrVal_929))) (select (select (store .cse17 |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_940) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| (store .cse7 .cse8 v_ArrVal_921)) .cse18 v_ArrVal_913) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (select (select .cse17 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) 0)) (forall ((v_ArrVal_941 (Array Int Int)) (v_ArrVal_913 (Array Int Int)) (v_ArrVal_929 (Array Int Int)) (v_ArrVal_921 Int) (v_ArrVal_930 Int)) (= (select (let ((.cse19 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| (store .cse7 .cse8 v_ArrVal_921)) .cse18 v_ArrVal_913))) (select (store .cse19 |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_941) (select (select .cse19 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| (store .cse9 .cse8 v_ArrVal_930)) .cse18 v_ArrVal_929) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) 0)))))))) is different from false [2022-11-26 01:09:32,764 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse8 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base|))) (let ((.cse18 (select .cse8 |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse10 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base|))) (let ((.cse9 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8)) (.cse0 (= (select .cse10 |c_ULTIMATE.start_main_~head~0#1.offset|) 0)) (.cse1 (= .cse18 0))) (and (or (not .cse0) (not .cse1) (and (forall ((v_ArrVal_920 Int)) (or (not (= (select |c_#valid| v_ArrVal_920) 0)) (forall ((v_ArrVal_903 Int) (v_ArrVal_922 Int) (v_ArrVal_921 Int) (v_ArrVal_930 Int) (v_ArrVal_941 (Array Int Int)) (v_ArrVal_933 (Array Int Int)) (v_ArrVal_910 (Array Int Int)) (v_ArrVal_924 (Array Int Int)) (v_ArrVal_915 (Array Int Int)) (v_ArrVal_925 (Array Int Int)) (v_ArrVal_927 (Array Int Int)) (v_ArrVal_938 (Array Int Int)) (v_ArrVal_918 (Array Int Int))) (= 0 (let ((.cse7 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base| (store (store .cse10 .cse9 v_ArrVal_930) |c_ULTIMATE.start_main_~head~0#1.offset| 0)))) (let ((.cse5 (select (select (store .cse7 v_ArrVal_920 v_ArrVal_924) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse3 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base| (store (store .cse8 .cse9 v_ArrVal_921) |c_ULTIMATE.start_main_~head~0#1.offset| v_ArrVal_920)))) (let ((.cse4 (select (select (store .cse3 v_ArrVal_920 v_ArrVal_933) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse6 (+ 8 .cse5))) (select (let ((.cse2 (store (store .cse3 v_ArrVal_920 v_ArrVal_915) .cse4 (store (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_918) v_ArrVal_920 v_ArrVal_927) .cse4) .cse5 0) .cse6 v_ArrVal_903)))) (select (store .cse2 |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_941) (select (select .cse2 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (select (select (store (store .cse7 v_ArrVal_920 v_ArrVal_938) .cse4 (store (store (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_925) v_ArrVal_920 v_ArrVal_910) .cse4) .cse5 0) .cse6 v_ArrVal_922)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))))) (= v_ArrVal_920 0))) (forall ((v_ArrVal_920 Int)) (or (not (= (select |c_#valid| v_ArrVal_920) 0)) (forall ((v_ArrVal_903 Int) (v_ArrVal_922 Int) (v_ArrVal_921 Int) (v_ArrVal_940 (Array Int Int)) (v_ArrVal_930 Int) (v_ArrVal_933 (Array Int Int)) (v_ArrVal_910 (Array Int Int)) (v_ArrVal_924 (Array Int Int)) (v_ArrVal_915 (Array Int Int)) (v_ArrVal_925 (Array Int Int)) (v_ArrVal_927 (Array Int Int)) (v_ArrVal_938 (Array Int Int)) (v_ArrVal_918 (Array Int Int))) (= (let ((.cse16 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base| (store (store .cse10 .cse9 v_ArrVal_930) |c_ULTIMATE.start_main_~head~0#1.offset| 0)))) (let ((.cse14 (select (select (store .cse16 v_ArrVal_920 v_ArrVal_924) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse12 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base| (store (store .cse8 .cse9 v_ArrVal_921) |c_ULTIMATE.start_main_~head~0#1.offset| v_ArrVal_920)))) (let ((.cse13 (select (select (store .cse12 v_ArrVal_920 v_ArrVal_933) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse15 (+ 8 .cse14))) (let ((.cse11 (store (store .cse16 v_ArrVal_920 v_ArrVal_938) .cse13 (store (store (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_925) v_ArrVal_920 v_ArrVal_910) .cse13) .cse14 0) .cse15 v_ArrVal_922)))) (select (select (store .cse11 |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_940) (select (select (store (store .cse12 v_ArrVal_920 v_ArrVal_915) .cse13 (store (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_918) v_ArrVal_920 v_ArrVal_927) .cse13) .cse14 0) .cse15 v_ArrVal_903)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (select (select .cse11 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))))) 0)) (= v_ArrVal_920 0))))) (or (and (forall ((v_ArrVal_913 (Array Int Int)) (v_ArrVal_929 (Array Int Int)) (v_ArrVal_921 Int) (v_ArrVal_940 (Array Int Int)) (v_ArrVal_930 Int)) (= (let ((.cse17 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base| (store .cse10 .cse9 v_ArrVal_930)) .cse18 v_ArrVal_929))) (select (select (store .cse17 |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_940) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base| (store .cse8 .cse9 v_ArrVal_921)) .cse18 v_ArrVal_913) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (select (select .cse17 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) 0)) (forall ((v_ArrVal_941 (Array Int Int)) (v_ArrVal_913 (Array Int Int)) (v_ArrVal_929 (Array Int Int)) (v_ArrVal_921 Int) (v_ArrVal_930 Int)) (= (select (let ((.cse19 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base| (store .cse8 .cse9 v_ArrVal_921)) .cse18 v_ArrVal_913))) (select (store .cse19 |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_941) (select (select .cse19 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base| (store .cse10 .cse9 v_ArrVal_930)) .cse18 v_ArrVal_929) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) 0))) (and .cse0 .cse1)))))) is different from false [2022-11-26 01:09:33,239 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-11-26 01:09:33,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665264203] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 01:09:33,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [11327988] [2022-11-26 01:09:33,241 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-26 01:09:33,241 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 01:09:33,242 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 01:09:33,242 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 01:09:33,242 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 01:09:33,279 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 01:09:33,280 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 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-26 01:09:33,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:33,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:33,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-26 01:09:33,325 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 01:09:33,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 01:09:33,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:33,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:33,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-26 01:09:33,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:33,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:33,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:33,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 46 [2022-11-26 01:09:33,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:33,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:33,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:33,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:33,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 506 treesize of output 528 [2022-11-26 01:09:33,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:33,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:33,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:33,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:33,560 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:33,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:33,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:33,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:35,048 INFO L321 Elim1Store]: treesize reduction 337, result has 11.1 percent of original size [2022-11-26 01:09:35,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 490 treesize of output 438 [2022-11-26 01:09:35,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:35,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:35,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:35,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:35,340 INFO L321 Elim1Store]: treesize reduction 302, result has 10.9 percent of original size [2022-11-26 01:09:35,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 421 treesize of output 385 [2022-11-26 01:09:35,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:35,448 INFO L321 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2022-11-26 01:09:35,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 50 [2022-11-26 01:09:35,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:35,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:35,490 INFO L321 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2022-11-26 01:09:35,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 93 [2022-11-26 01:09:35,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:35,584 INFO L321 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2022-11-26 01:09:35,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 61 [2022-11-26 01:09:36,618 INFO L321 Elim1Store]: treesize reduction 122, result has 22.8 percent of original size [2022-11-26 01:09:36,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 9490 treesize of output 8547 [2022-11-26 01:09:36,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:36,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:36,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:36,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:36,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:36,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:36,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:36,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:36,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:37,171 INFO L321 Elim1Store]: treesize reduction 420, result has 6.0 percent of original size [2022-11-26 01:09:37,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 13 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 17 case distinctions, treesize of input 4189 treesize of output 4181 [2022-11-26 01:09:37,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:37,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:37,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:37,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:37,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:37,429 INFO L321 Elim1Store]: treesize reduction 38, result has 15.6 percent of original size [2022-11-26 01:09:37,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 435 treesize of output 410 [2022-11-26 01:09:37,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:37,591 INFO L321 Elim1Store]: treesize reduction 42, result has 14.3 percent of original size [2022-11-26 01:09:37,591 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 2 case distinctions, treesize of input 288 treesize of output 261 [2022-11-26 01:09:37,877 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 01:09:37,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 28 [2022-11-26 01:09:38,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,050 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 347 [2022-11-26 01:09:38,137 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 01:09:38,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,168 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 67 [2022-11-26 01:09:38,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,232 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 67 [2022-11-26 01:09:38,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,360 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,372 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2022-11-26 01:09:38,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 347 [2022-11-26 01:09:38,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,508 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 100 [2022-11-26 01:09:38,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,553 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:38,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 100 [2022-11-26 01:09:38,653 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:38,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-26 01:09:41,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:41,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:41,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:41,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:41,830 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:42,110 INFO L321 Elim1Store]: treesize reduction 636, result has 5.5 percent of original size [2022-11-26 01:09:42,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 10 case distinctions, treesize of input 1094 treesize of output 1681 [2022-11-26 01:09:42,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:42,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:42,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:42,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:42,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:42,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:42,956 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,059 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,156 INFO L217 Elim1Store]: Index analysis took 209 ms [2022-11-26 01:09:43,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,174 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 7 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 344 treesize of output 1543 [2022-11-26 01:09:43,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:43,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:43,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:43,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:43,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:43,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,422 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,487 INFO L217 Elim1Store]: Index analysis took 189 ms [2022-11-26 01:09:43,489 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,518 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 7 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 344 treesize of output 1807 [2022-11-26 01:09:43,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,659 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 01:09:43,692 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:43,711 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 01:09:44,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:44,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:44,669 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:44,766 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:44,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:44,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:44,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:44,971 INFO L217 Elim1Store]: Index analysis took 205 ms [2022-11-26 01:09:45,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 26 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 30 new quantified variables, introduced 0 case distinctions, treesize of input 4013 treesize of output 96228 [2022-11-26 01:09:48,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:48,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:48,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:52,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:09:52,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:52,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:09:52,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:11:17,144 INFO L217 Elim1Store]: Index analysis took 84167 ms [2022-11-26 01:11:36,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 124 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 128 new quantified variables, introduced 0 case distinctions, treesize of input 134774 treesize of output 15369300