./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 045b49e5089f039c3b28eef4cf3a9c907cbda8f22472af0061e42bad883dd2f9 --- 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-4e7fbc6 [2022-11-23 15:58:23,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:58:23,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:58:23,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:58:23,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:58:23,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:58:23,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:58:23,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:58:23,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:58:23,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:58:23,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:58:23,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:58:23,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:58:23,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:58:23,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:58:23,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:58:23,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:58:23,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:58:23,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:58:23,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:58:23,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:58:23,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:58:23,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:58:23,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:58:23,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:58:23,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:58:23,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:58:23,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:58:23,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:58:23,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:58:23,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:58:23,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:58:23,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:58:23,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:58:23,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:58:23,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:58:23,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:58:23,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:58:23,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:58:23,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:58:23,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:58:23,854 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:58:23,894 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:58:23,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:58:23,895 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:58:23,895 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:58:23,896 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:58:23,897 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:58:23,897 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:58:23,897 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:58:23,897 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:58:23,898 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:58:23,899 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:58:23,899 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:58:23,900 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:58:23,900 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:58:23,900 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:58:23,900 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:58:23,901 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:58:23,901 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:58:23,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:58:23,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:58:23,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:58:23,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:58:23,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:58:23,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:58:23,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:58:23,904 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:58:23,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:58:23,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:58:23,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:58:23,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:58:23,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:58:23,906 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:58:23,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:58:23,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:58:23,907 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:58:23,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:58:23,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:58:23,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:58:23,908 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_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 045b49e5089f039c3b28eef4cf3a9c907cbda8f22472af0061e42bad883dd2f9 [2022-11-23 15:58:24,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:58:24,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:58:24,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:58:24,320 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:58:24,322 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:58:24,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i [2022-11-23 15:58:27,552 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:58:28,084 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:58:28,085 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i [2022-11-23 15:58:28,124 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/data/bc387dea5/79dc8e23fb0b4058aa3a7ad83a382210/FLAGdc2a11df4 [2022-11-23 15:58:28,147 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/data/bc387dea5/79dc8e23fb0b4058aa3a7ad83a382210 [2022-11-23 15:58:28,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:58:28,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:58:28,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:58:28,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:58:28,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:58:28,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:58:28" (1/1) ... [2022-11-23 15:58:28,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d417050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:28, skipping insertion in model container [2022-11-23 15:58:28,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:58:28" (1/1) ... [2022-11-23 15:58:28,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:58:28,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:58:28,841 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3528] [2022-11-23 15:58:28,842 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3529-3530] [2022-11-23 15:58:29,169 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_3e855581-540d-4036-942f-e270ce4f218b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i[105797,105810] [2022-11-23 15:58:30,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:58:30,048 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:58:30,134 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3528] [2022-11-23 15:58:30,134 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3529-3530] [2022-11-23 15:58:30,144 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_3e855581-540d-4036-942f-e270ce4f218b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i[105797,105810] [2022-11-23 15:58:30,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:58:30,536 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:58:30,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:30 WrapperNode [2022-11-23 15:58:30,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:58:30,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:58:30,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:58:30,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:58:30,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:30" (1/1) ... [2022-11-23 15:58:30,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:30" (1/1) ... [2022-11-23 15:58:30,852 INFO L138 Inliner]: procedures = 189, calls = 1742, calls flagged for inlining = 77, calls inlined = 68, statements flattened = 4490 [2022-11-23 15:58:30,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:58:30,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:58:30,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:58:30,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:58:30,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:30" (1/1) ... [2022-11-23 15:58:30,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:30" (1/1) ... [2022-11-23 15:58:30,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:30" (1/1) ... [2022-11-23 15:58:30,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:30" (1/1) ... [2022-11-23 15:58:31,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:30" (1/1) ... [2022-11-23 15:58:31,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:30" (1/1) ... [2022-11-23 15:58:31,209 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:30" (1/1) ... [2022-11-23 15:58:31,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:30" (1/1) ... [2022-11-23 15:58:31,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:58:31,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:58:31,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:58:31,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:58:31,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:30" (1/1) ... [2022-11-23 15:58:31,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:58:31,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:58:31,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:58:31,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:58:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-11-23 15:58:31,381 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-11-23 15:58:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-23 15:58:31,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-23 15:58:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-23 15:58:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-23 15:58:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-23 15:58:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-23 15:58:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure free_sglist [2022-11-23 15:58:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure free_sglist [2022-11-23 15:58:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-23 15:58:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-23 15:58:31,383 INFO L130 BoogieDeclarations]: Found specification of procedure test_iso_queue [2022-11-23 15:58:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure test_iso_queue [2022-11-23 15:58:31,383 INFO L130 BoogieDeclarations]: Found specification of procedure simple_check_buf [2022-11-23 15:58:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_check_buf [2022-11-23 15:58:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:58:31,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:58:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:58:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-23 15:58:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-23 15:58:31,386 INFO L130 BoogieDeclarations]: Found specification of procedure perform_sglist [2022-11-23 15:58:31,386 INFO L138 BoogieDeclarations]: Found implementation of procedure perform_sglist [2022-11-23 15:58:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure test_unaligned_bulk [2022-11-23 15:58:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure test_unaligned_bulk [2022-11-23 15:58:31,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-23 15:58:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-23 15:58:31,388 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_sglist [2022-11-23 15:58:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_sglist [2022-11-23 15:58:31,388 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-23 15:58:31,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-23 15:58:31,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:58:31,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:58:31,390 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-23 15:58:31,390 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-23 15:58:31,391 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-23 15:58:31,391 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-23 15:58:31,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 15:58:31,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 15:58:31,391 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:58:31,391 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:58:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure set_altsetting [2022-11-23 15:58:31,392 INFO L138 BoogieDeclarations]: Found implementation of procedure set_altsetting [2022-11-23 15:58:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-23 15:58:31,392 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-23 15:58:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:58:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 15:58:31,394 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 15:58:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-23 15:58:31,394 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-23 15:58:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 15:58:31,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 15:58:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure verify_not_halted [2022-11-23 15:58:31,395 INFO L138 BoogieDeclarations]: Found implementation of procedure verify_not_halted [2022-11-23 15:58:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-23 15:58:31,395 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-23 15:58:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-23 15:58:31,395 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-23 15:58:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:58:31,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:58:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:58:31,396 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:58:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-23 15:58:31,397 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-23 15:58:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 15:58:31,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 15:58:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure test_halt [2022-11-23 15:58:31,398 INFO L138 BoogieDeclarations]: Found implementation of procedure test_halt [2022-11-23 15:58:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_alloc_urb [2022-11-23 15:58:31,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_alloc_urb [2022-11-23 15:58:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure unlink1 [2022-11-23 15:58:31,399 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink1 [2022-11-23 15:58:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:58:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure ctrl_out [2022-11-23 15:58:31,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ctrl_out [2022-11-23 15:58:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 15:58:31,401 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 15:58:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-11-23 15:58:31,401 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-11-23 15:58:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_status [2022-11-23 15:58:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_status [2022-11-23 15:58:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:58:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure is_good_config [2022-11-23 15:58:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure is_good_config [2022-11-23 15:58:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-23 15:58:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-23 15:58:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-11-23 15:58:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-11-23 15:58:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:58:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:58:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-11-23 15:58:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-11-23 15:58:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-23 15:58:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-23 15:58:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-11-23 15:58:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-11-23 15:58:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure testdev_to_usbdev [2022-11-23 15:58:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure testdev_to_usbdev [2022-11-23 15:58:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-23 15:58:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-23 15:58:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:58:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_simple [2022-11-23 15:58:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_simple [2022-11-23 15:58:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-23 15:58:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-23 15:58:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-23 15:58:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-23 15:58:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-23 15:58:31,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-23 15:58:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-23 15:58:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-23 15:58:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure simple_io [2022-11-23 15:58:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_io [2022-11-23 15:58:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:58:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:58:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure simple_alloc_urb [2022-11-23 15:58:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_alloc_urb [2022-11-23 15:58:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure simple_free_urb [2022-11-23 15:58:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_free_urb [2022-11-23 15:58:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure simple_fill_buf [2022-11-23 15:58:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_fill_buf [2022-11-23 15:58:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2022-11-23 15:58:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2022-11-23 15:58:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 15:58:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 15:58:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 15:58:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 15:58:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_ioctl [2022-11-23 15:58:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_ioctl [2022-11-23 15:58:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_offset [2022-11-23 15:58:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_offset [2022-11-23 15:58:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-23 15:58:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-23 15:58:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:58:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2022-11-23 15:58:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2022-11-23 15:58:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_disconnect [2022-11-23 15:58:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_disconnect [2022-11-23 15:58:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure check_guard_bytes [2022-11-23 15:58:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure check_guard_bytes [2022-11-23 15:58:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-23 15:58:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-23 15:58:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-23 15:58:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-23 15:58:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 15:58:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 15:58:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:58:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:58:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_descriptor [2022-11-23 15:58:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_descriptor [2022-11-23 15:58:32,189 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:58:32,192 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:58:32,963 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:58:36,001 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:58:37,117 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:58:37,117 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:58:37,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:37 BoogieIcfgContainer [2022-11-23 15:58:37,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:58:37,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:58:37,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:58:37,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:58:37,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:58:28" (1/3) ... [2022-11-23 15:58:37,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407a221b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:58:37, skipping insertion in model container [2022-11-23 15:58:37,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:30" (2/3) ... [2022-11-23 15:58:37,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407a221b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:58:37, skipping insertion in model container [2022-11-23 15:58:37,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:37" (3/3) ... [2022-11-23 15:58:37,136 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i [2022-11-23 15:58:37,158 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:58:37,158 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:58:37,258 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:58:37,267 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;@234511b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:58:37,267 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:58:37,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 1005 states, 679 states have (on average 1.427098674521355) internal successors, (969), 694 states have internal predecessors, (969), 256 states have call successors, (256), 69 states have call predecessors, (256), 68 states have return successors, (253), 250 states have call predecessors, (253), 253 states have call successors, (253) [2022-11-23 15:58:37,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-23 15:58:37,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:58:37,289 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:58:37,289 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:58:37,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:58:37,295 INFO L85 PathProgramCache]: Analyzing trace with hash -998163674, now seen corresponding path program 1 times [2022-11-23 15:58:37,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:58:37,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296259637] [2022-11-23 15:58:37,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:37,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:58:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:58:37,916 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 15:58:37,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:58:37,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296259637] [2022-11-23 15:58:37,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296259637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:58:37,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:58:37,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:58:37,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515901593] [2022-11-23 15:58:37,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:58:37,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:58:37,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:58:37,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:58:37,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:58:37,987 INFO L87 Difference]: Start difference. First operand has 1005 states, 679 states have (on average 1.427098674521355) internal successors, (969), 694 states have internal predecessors, (969), 256 states have call successors, (256), 69 states have call predecessors, (256), 68 states have return successors, (253), 250 states have call predecessors, (253), 253 states have call successors, (253) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 15:58:38,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:58:38,968 INFO L93 Difference]: Finished difference Result 2037 states and 3055 transitions. [2022-11-23 15:58:38,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:58:38,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2022-11-23 15:58:38,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:58:39,005 INFO L225 Difference]: With dead ends: 2037 [2022-11-23 15:58:39,005 INFO L226 Difference]: Without dead ends: 1022 [2022-11-23 15:58:39,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:58:39,025 INFO L413 NwaCegarLoop]: 1288 mSDtfsCounter, 48 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 2551 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:58:39,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 2551 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 15:58:39,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2022-11-23 15:58:39,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1020. [2022-11-23 15:58:39,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 693 states have (on average 1.4141414141414141) internal successors, (980), 704 states have internal predecessors, (980), 255 states have call successors, (255), 72 states have call predecessors, (255), 71 states have return successors, (254), 250 states have call predecessors, (254), 254 states have call successors, (254) [2022-11-23 15:58:39,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1489 transitions. [2022-11-23 15:58:39,177 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1489 transitions. Word has length 35 [2022-11-23 15:58:39,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:58:39,178 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 1489 transitions. [2022-11-23 15:58:39,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 15:58:39,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1489 transitions. [2022-11-23 15:58:39,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-23 15:58:39,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:58:39,181 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:58:39,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:58:39,182 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:58:39,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:58:39,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1588750052, now seen corresponding path program 1 times [2022-11-23 15:58:39,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:58:39,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976960076] [2022-11-23 15:58:39,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:39,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:58:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:58:39,518 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:58:39,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:58:39,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976960076] [2022-11-23 15:58:39,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976960076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:58:39,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:58:39,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:58:39,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261000291] [2022-11-23 15:58:39,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:58:39,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:58:39,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:58:39,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:58:39,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:58:39,530 INFO L87 Difference]: Start difference. First operand 1020 states and 1489 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-23 15:58:40,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:58:40,202 INFO L93 Difference]: Finished difference Result 1048 states and 1515 transitions. [2022-11-23 15:58:40,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:58:40,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 51 [2022-11-23 15:58:40,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:58:40,213 INFO L225 Difference]: With dead ends: 1048 [2022-11-23 15:58:40,215 INFO L226 Difference]: Without dead ends: 1045 [2022-11-23 15:58:40,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:58:40,219 INFO L413 NwaCegarLoop]: 1271 mSDtfsCounter, 1383 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:58:40,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 1321 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 15:58:40,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2022-11-23 15:58:40,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1045. [2022-11-23 15:58:40,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 707 states have (on average 1.4073550212164074) internal successors, (995), 718 states have internal predecessors, (995), 259 states have call successors, (259), 79 states have call predecessors, (259), 78 states have return successors, (258), 254 states have call predecessors, (258), 258 states have call successors, (258) [2022-11-23 15:58:40,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1512 transitions. [2022-11-23 15:58:40,293 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1512 transitions. Word has length 51 [2022-11-23 15:58:40,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:58:40,293 INFO L495 AbstractCegarLoop]: Abstraction has 1045 states and 1512 transitions. [2022-11-23 15:58:40,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-23 15:58:40,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1512 transitions. [2022-11-23 15:58:40,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-23 15:58:40,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:58:40,306 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:58:40,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:58:40,306 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:58:40,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:58:40,307 INFO L85 PathProgramCache]: Analyzing trace with hash -451313025, now seen corresponding path program 1 times [2022-11-23 15:58:40,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:58:40,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384474012] [2022-11-23 15:58:40,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:40,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:58:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:58:40,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:58:40,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384474012] [2022-11-23 15:58:40,521 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-23 15:58:40,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120578040] [2022-11-23 15:58:40,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:40,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:58:40,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:58:40,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:58:40,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:58:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:58:41,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 2508 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:58:41,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:58:41,583 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 15:58:41,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:58:41,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120578040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:58:41,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:58:41,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:58:41,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509247482] [2022-11-23 15:58:41,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:58:41,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:58:41,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:58:41,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:58:41,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:58:41,587 INFO L87 Difference]: Start difference. First operand 1045 states and 1512 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-23 15:58:42,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:58:42,479 INFO L93 Difference]: Finished difference Result 2144 states and 3089 transitions. [2022-11-23 15:58:42,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:58:42,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 132 [2022-11-23 15:58:42,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:58:42,489 INFO L225 Difference]: With dead ends: 2144 [2022-11-23 15:58:42,489 INFO L226 Difference]: Without dead ends: 1117 [2022-11-23 15:58:42,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:58:42,503 INFO L413 NwaCegarLoop]: 1276 mSDtfsCounter, 205 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2402 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:58:42,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2402 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 15:58:42,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2022-11-23 15:58:42,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 1111. [2022-11-23 15:58:42,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 755 states have (on average 1.4013245033112582) internal successors, (1058), 766 states have internal predecessors, (1058), 265 states have call successors, (265), 91 states have call predecessors, (265), 90 states have return successors, (264), 260 states have call predecessors, (264), 264 states have call successors, (264) [2022-11-23 15:58:42,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1587 transitions. [2022-11-23 15:58:42,571 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1587 transitions. Word has length 132 [2022-11-23 15:58:42,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:58:42,573 INFO L495 AbstractCegarLoop]: Abstraction has 1111 states and 1587 transitions. [2022-11-23 15:58:42,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-23 15:58:42,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1587 transitions. [2022-11-23 15:58:42,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-23 15:58:42,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:58:42,587 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:58:42,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:58:42,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-23 15:58:42,800 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:58:42,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:58:42,801 INFO L85 PathProgramCache]: Analyzing trace with hash 372661724, now seen corresponding path program 1 times [2022-11-23 15:58:42,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:58:42,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571596697] [2022-11-23 15:58:42,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:42,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:58:42,906 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:58:42,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [942722071] [2022-11-23 15:58:42,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:42,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:58:42,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:58:42,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:58:42,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:58:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:58:43,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 2594 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:58:43,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:58:44,083 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-23 15:58:44,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:58:44,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:58:44,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571596697] [2022-11-23 15:58:44,084 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:58:44,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942722071] [2022-11-23 15:58:44,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942722071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:58:44,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:58:44,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:58:44,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616422280] [2022-11-23 15:58:44,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:58:44,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:58:44,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:58:44,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:58:44,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:58:44,087 INFO L87 Difference]: Start difference. First operand 1111 states and 1587 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-23 15:58:45,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:58:45,083 INFO L93 Difference]: Finished difference Result 2274 states and 3260 transitions. [2022-11-23 15:58:45,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:58:45,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 144 [2022-11-23 15:58:45,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:58:45,092 INFO L225 Difference]: With dead ends: 2274 [2022-11-23 15:58:45,092 INFO L226 Difference]: Without dead ends: 1181 [2022-11-23 15:58:45,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:58:45,098 INFO L413 NwaCegarLoop]: 1339 mSDtfsCounter, 225 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2590 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:58:45,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 2590 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 15:58:45,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2022-11-23 15:58:45,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1112. [2022-11-23 15:58:45,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 756 states have (on average 1.3981481481481481) internal successors, (1057), 767 states have internal predecessors, (1057), 265 states have call successors, (265), 91 states have call predecessors, (265), 90 states have return successors, (264), 260 states have call predecessors, (264), 264 states have call successors, (264) [2022-11-23 15:58:45,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1586 transitions. [2022-11-23 15:58:45,159 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1586 transitions. Word has length 144 [2022-11-23 15:58:45,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:58:45,160 INFO L495 AbstractCegarLoop]: Abstraction has 1112 states and 1586 transitions. [2022-11-23 15:58:45,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-23 15:58:45,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1586 transitions. [2022-11-23 15:58:45,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-23 15:58:45,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:58:45,167 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:58:45,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:58:45,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:58:45,379 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:58:45,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:58:45,380 INFO L85 PathProgramCache]: Analyzing trace with hash 642745297, now seen corresponding path program 1 times [2022-11-23 15:58:45,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:58:45,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168906448] [2022-11-23 15:58:45,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:45,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:58:45,487 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:58:45,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [33912865] [2022-11-23 15:58:45,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:45,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:58:45,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:58:45,489 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:58:45,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:58:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:58:46,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 2626 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:58:46,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:58:46,620 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 15:58:46,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:58:46,786 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 15:58:46,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:58:46,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168906448] [2022-11-23 15:58:46,786 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:58:46,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33912865] [2022-11-23 15:58:46,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33912865] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 15:58:46,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:58:46,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-23 15:58:46,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261122847] [2022-11-23 15:58:46,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:58:46,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:58:46,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:58:46,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:58:46,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:58:46,790 INFO L87 Difference]: Start difference. First operand 1112 states and 1586 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-23 15:58:47,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:58:47,962 INFO L93 Difference]: Finished difference Result 3150 states and 4515 transitions. [2022-11-23 15:58:47,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:58:47,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 153 [2022-11-23 15:58:47,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:58:47,978 INFO L225 Difference]: With dead ends: 3150 [2022-11-23 15:58:47,979 INFO L226 Difference]: Without dead ends: 2056 [2022-11-23 15:58:47,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:58:47,986 INFO L413 NwaCegarLoop]: 1480 mSDtfsCounter, 1418 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 2602 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:58:47,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1418 Valid, 2602 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 15:58:47,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2022-11-23 15:58:48,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 2022. [2022-11-23 15:58:48,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1367 states have (on average 1.403803950256035) internal successors, (1919), 1389 states have internal predecessors, (1919), 492 states have call successors, (492), 163 states have call predecessors, (492), 162 states have return successors, (491), 483 states have call predecessors, (491), 491 states have call successors, (491) [2022-11-23 15:58:48,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 2902 transitions. [2022-11-23 15:58:48,160 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 2902 transitions. Word has length 153 [2022-11-23 15:58:48,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:58:48,161 INFO L495 AbstractCegarLoop]: Abstraction has 2022 states and 2902 transitions. [2022-11-23 15:58:48,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-23 15:58:48,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 2902 transitions. [2022-11-23 15:58:48,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-23 15:58:48,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:58:48,174 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:58:48,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:58:48,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:58:48,386 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:58:48,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:58:48,387 INFO L85 PathProgramCache]: Analyzing trace with hash -91104955, now seen corresponding path program 1 times [2022-11-23 15:58:48,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:58:48,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352839268] [2022-11-23 15:58:48,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:48,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:58:48,527 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:58:48,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2041730402] [2022-11-23 15:58:48,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:48,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:58:48,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:58:48,530 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:58:48,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:58:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:58:49,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 2627 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:58:49,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:58:49,626 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-23 15:58:49,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:58:49,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:58:49,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352839268] [2022-11-23 15:58:49,627 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:58:49,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041730402] [2022-11-23 15:58:49,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041730402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:58:49,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:58:49,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:58:49,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659286013] [2022-11-23 15:58:49,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:58:49,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:58:49,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:58:49,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:58:49,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:58:49,630 INFO L87 Difference]: Start difference. First operand 2022 states and 2902 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-23 15:58:50,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:58:50,731 INFO L93 Difference]: Finished difference Result 4125 states and 5933 transitions. [2022-11-23 15:58:50,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:58:50,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 154 [2022-11-23 15:58:50,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:58:50,746 INFO L225 Difference]: With dead ends: 4125 [2022-11-23 15:58:50,746 INFO L226 Difference]: Without dead ends: 2121 [2022-11-23 15:58:50,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:58:50,755 INFO L413 NwaCegarLoop]: 1329 mSDtfsCounter, 215 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:58:50,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 2580 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 15:58:50,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2121 states. [2022-11-23 15:58:50,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 2022. [2022-11-23 15:58:50,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1367 states have (on average 1.403803950256035) internal successors, (1919), 1389 states have internal predecessors, (1919), 492 states have call successors, (492), 163 states have call predecessors, (492), 162 states have return successors, (491), 483 states have call predecessors, (491), 491 states have call successors, (491) [2022-11-23 15:58:50,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 2902 transitions. [2022-11-23 15:58:50,869 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 2902 transitions. Word has length 154 [2022-11-23 15:58:50,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:58:50,870 INFO L495 AbstractCegarLoop]: Abstraction has 2022 states and 2902 transitions. [2022-11-23 15:58:50,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-23 15:58:50,870 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 2902 transitions. [2022-11-23 15:58:50,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-23 15:58:50,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:58:50,881 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:58:50,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 15:58:51,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:58:51,097 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:58:51,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:58:51,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1125126116, now seen corresponding path program 1 times [2022-11-23 15:58:51,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:58:51,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251591334] [2022-11-23 15:58:51,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:51,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:58:51,250 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:58:51,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1189700553] [2022-11-23 15:58:51,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:51,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:58:51,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:58:51,252 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:58:51,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 15:58:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:58:52,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 2865 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 15:58:52,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:58:52,413 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 15:58:52,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:58:52,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:58:52,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251591334] [2022-11-23 15:58:52,414 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:58:52,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189700553] [2022-11-23 15:58:52,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189700553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:58:52,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:58:52,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:58:52,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78279095] [2022-11-23 15:58:52,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:58:52,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:58:52,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:58:52,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:58:52,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:58:52,417 INFO L87 Difference]: Start difference. First operand 2022 states and 2902 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 4 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-23 15:58:54,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:58:54,477 INFO L93 Difference]: Finished difference Result 4193 states and 6037 transitions. [2022-11-23 15:58:54,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:58:54,478 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 4 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 189 [2022-11-23 15:58:54,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:58:54,496 INFO L225 Difference]: With dead ends: 4193 [2022-11-23 15:58:54,496 INFO L226 Difference]: Without dead ends: 2189 [2022-11-23 15:58:54,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:58:54,508 INFO L413 NwaCegarLoop]: 1364 mSDtfsCounter, 309 mSDsluCounter, 4853 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 6217 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:58:54,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 6217 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-23 15:58:54,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2022-11-23 15:58:54,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 2028. [2022-11-23 15:58:54,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 1371 states have (on average 1.4026258205689277) internal successors, (1923), 1393 states have internal predecessors, (1923), 494 states have call successors, (494), 163 states have call predecessors, (494), 162 states have return successors, (493), 485 states have call predecessors, (493), 493 states have call successors, (493) [2022-11-23 15:58:54,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2910 transitions. [2022-11-23 15:58:54,619 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2910 transitions. Word has length 189 [2022-11-23 15:58:54,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:58:54,621 INFO L495 AbstractCegarLoop]: Abstraction has 2028 states and 2910 transitions. [2022-11-23 15:58:54,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 4 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-23 15:58:54,621 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2910 transitions. [2022-11-23 15:58:54,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-23 15:58:54,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:58:54,631 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:58:54,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 15:58:54,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:58:54,843 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:58:54,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:58:54,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1860103556, now seen corresponding path program 1 times [2022-11-23 15:58:54,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:58:54,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205468861] [2022-11-23 15:58:54,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:54,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:58:54,978 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:58:54,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1100151084] [2022-11-23 15:58:54,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:54,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:58:54,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:58:54,985 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:58:55,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e855581-540d-4036-942f-e270ce4f218b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 15:58:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:58:55,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 2896 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-23 15:58:56,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:58:56,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-11-23 15:58:56,547 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 22 treesize of output 10 [2022-11-23 15:58:56,588 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-23 15:58:56,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:58:56,761 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 46 treesize of output 34 [2022-11-23 15:58:56,768 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 26 treesize of output 22 [2022-11-23 15:58:57,129 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-23 15:58:57,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:58:57,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205468861] [2022-11-23 15:58:57,129 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:58:57,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100151084] [2022-11-23 15:58:57,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100151084] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:58:57,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1216425733] [2022-11-23 15:58:57,159 INFO L159 IcfgInterpreter]: Started Sifa with 154 locations of interest [2022-11-23 15:58:57,159 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:58:57,164 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:58:57,171 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:58:57,171 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:59:00,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:01,060 INFO L217 Elim1Store]: Index analysis took 290 ms [2022-11-23 15:59:20,969 WARN L233 SmtUtils]: Spent 19.86s on a formula simplification. DAG size of input: 1754 DAG size of output: 957 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 15:59:20,975 INFO L321 Elim1Store]: treesize reduction 2862, result has 33.3 percent of original size [2022-11-23 15:59:20,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 162 select indices, 162 select index equivalence classes, 12882 disjoint index pairs (out of 13041 index pairs), introduced 162 new quantified variables, introduced 318 case distinctions, treesize of input 817 treesize of output 1933 [2022-11-23 15:59:23,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:23,680 INFO L217 Elim1Store]: Index analysis took 106 ms [2022-11-23 15:59:23,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 160 select indices, 160 select index equivalence classes, 12881 disjoint index pairs (out of 12720 index pairs), introduced 160 new quantified variables, introduced 0 case distinctions, treesize of input 807 treesize of output 1286 [2022-11-23 15:59:35,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:35,950 INFO L217 Elim1Store]: Index analysis took 352 ms [2022-11-23 15:59:36,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 315 select indices, 315 select index equivalence classes, 7604 disjoint index pairs (out of 49455 index pairs), introduced 315 new quantified variables, introduced 0 case distinctions, treesize of input 2566 treesize of output 968 [2022-11-23 15:59:36,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:36,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 161 select indices, 161 select index equivalence classes, 12881 disjoint index pairs (out of 12880 index pairs), introduced 161 new quantified variables, introduced 0 case distinctions, treesize of input 806 treesize of output 484 [2022-11-23 15:59:37,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:37,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 162 select indices, 162 select index equivalence classes, 13041 disjoint index pairs (out of 13041 index pairs), introduced 162 new quantified variables, introduced 0 case distinctions, treesize of input 811 treesize of output 487 [2022-11-23 15:59:46,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:46,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 162 select indices, 162 select index equivalence classes, 13041 disjoint index pairs (out of 13041 index pairs), introduced 162 new quantified variables, introduced 0 case distinctions, treesize of input 811 treesize of output 487 [2022-11-23 15:59:47,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:47,496 INFO L217 Elim1Store]: Index analysis took 297 ms [2022-11-23 15:59:47,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 315 select indices, 315 select index equivalence classes, 7604 disjoint index pairs (out of 49455 index pairs), introduced 315 new quantified variables, introduced 0 case distinctions, treesize of input 2566 treesize of output 968 [2022-11-23 15:59:48,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:59:48,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 161 select indices, 161 select index equivalence classes, 12881 disjoint index pairs (out of 12880 index pairs), introduced 161 new quantified variables, introduced 0 case distinctions, treesize of input 806 treesize of output 484 [2022-11-23 16:00:01,550 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 2486 for LOIs [2022-11-23 16:00:33,772 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 831 for LOIs [2022-11-23 16:00:34,225 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:02:01,392 WARN L233 SmtUtils]: Spent 1.44m on a formula simplification. DAG size of input: 2363 DAG size of output: 2045 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 16:03:40,880 WARN L233 SmtUtils]: Spent 1.63m on a formula simplification. DAG size of input: 2486 DAG size of output: 2431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 16:05:22,304 WARN L233 SmtUtils]: Spent 1.67m on a formula simplification. DAG size of input: 2494 DAG size of output: 2439 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 16:07:04,680 WARN L233 SmtUtils]: Spent 1.68m on a formula simplification. DAG size of input: 2500 DAG size of output: 2445 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 16:07:15,751 WARN L233 SmtUtils]: Spent 10.44s on a formula simplification. DAG size of input: 827 DAG size of output: 824 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 16:07:26,883 WARN L233 SmtUtils]: Spent 10.49s on a formula simplification. DAG size of input: 831 DAG size of output: 828 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 16:07:38,219 WARN L233 SmtUtils]: Spent 10.64s on a formula simplification. DAG size of input: 839 DAG size of output: 833 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 16:07:49,905 WARN L233 SmtUtils]: Spent 11.00s on a formula simplification. DAG size of input: 843 DAG size of output: 837 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 16:08:01,275 WARN L233 SmtUtils]: Spent 10.56s on a formula simplification. DAG size of input: 831 DAG size of output: 828 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 16:08:12,844 WARN L233 SmtUtils]: Spent 10.77s on a formula simplification. DAG size of input: 833 DAG size of output: 830 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 16:08:12,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1216425733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:08:12,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 16:08:12,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15, 14] total 31 [2022-11-23 16:08:12,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482100750] [2022-11-23 16:08:12,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:08:12,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 16:08:12,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:08:12,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 16:08:12,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2022-11-23 16:08:12,880 INFO L87 Difference]: Start difference. First operand 2028 states and 2910 transitions. Second operand has 12 states, 9 states have (on average 12.0) internal successors, (108), 7 states have internal predecessors, (108), 4 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-23 16:09:46,947 WARN L233 SmtUtils]: Spent 1.50m on a formula simplification. DAG size of input: 2365 DAG size of output: 2049 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 16:11:20,032 WARN L233 SmtUtils]: Spent 1.53m on a formula simplification. DAG size of input: 2369 DAG size of output: 2053 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)