./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9 --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 738adda5587cc7db42a737880eb85db50323715a835f90df26e4ddab159c3369 --- 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-6b4ec56 [2022-11-20 21:13:46,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:13:46,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:13:47,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:13:47,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:13:47,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:13:47,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:13:47,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:13:47,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:13:47,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:13:47,030 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:13:47,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:13:47,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:13:47,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:13:47,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:13:47,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:13:47,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:13:47,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:13:47,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:13:47,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:13:47,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:13:47,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:13:47,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:13:47,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:13:47,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:13:47,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:13:47,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:13:47,072 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:13:47,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:13:47,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:13:47,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:13:47,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:13:47,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:13:47,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:13:47,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:13:47,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:13:47,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:13:47,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:13:47,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:13:47,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:13:47,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:13:47,088 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 21:13:47,145 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:13:47,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:13:47,146 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:13:47,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:13:47,147 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:13:47,148 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:13:47,148 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:13:47,148 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:13:47,148 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:13:47,148 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:13:47,149 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:13:47,150 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:13:47,150 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:13:47,150 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:13:47,150 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:13:47,151 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:13:47,151 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:13:47,151 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:13:47,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:13:47,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:13:47,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:13:47,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:13:47,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:13:47,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:13:47,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:13:47,153 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:13:47,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:13:47,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:13:47,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:13:47,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:13:47,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:13:47,154 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:13:47,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:13:47,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:13:47,155 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:13:47,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:13:47,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:13:47,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:13:47,155 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_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 738adda5587cc7db42a737880eb85db50323715a835f90df26e4ddab159c3369 [2022-11-20 21:13:47,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:13:47,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:13:47,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:13:47,508 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:13:47,508 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:13:47,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c [2022-11-20 21:13:50,627 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:13:50,971 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:13:50,972 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c [2022-11-20 21:13:50,986 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/data/13a520d9b/d37d399e9d00424c9bc6f6a460e94092/FLAGe79f56d98 [2022-11-20 21:13:51,010 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/data/13a520d9b/d37d399e9d00424c9bc6f6a460e94092 [2022-11-20 21:13:51,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:13:51,015 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:13:51,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:13:51,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:13:51,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:13:51,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:13:51" (1/1) ... [2022-11-20 21:13:51,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a993fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:13:51, skipping insertion in model container [2022-11-20 21:13:51,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:13:51" (1/1) ... [2022-11-20 21:13:51,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:13:51,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:13:51,248 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_43bbd585-4f17-4ede-a176-1de01ecfec03/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c[1107,1120] [2022-11-20 21:13:51,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:13:51,631 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:13:51,645 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_43bbd585-4f17-4ede-a176-1de01ecfec03/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c[1107,1120] [2022-11-20 21:13:51,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:13:51,808 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:13:51,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:13:51 WrapperNode [2022-11-20 21:13:51,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:13:51,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:13:51,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:13:51,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:13:51,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:13:51" (1/1) ... [2022-11-20 21:13:51,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:13:51" (1/1) ... [2022-11-20 21:13:51,990 INFO L138 Inliner]: procedures = 15, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 927 [2022-11-20 21:13:51,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:13:51,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:13:51,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:13:51,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:13:52,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:13:51" (1/1) ... [2022-11-20 21:13:52,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:13:51" (1/1) ... [2022-11-20 21:13:52,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:13:51" (1/1) ... [2022-11-20 21:13:52,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:13:51" (1/1) ... [2022-11-20 21:13:52,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:13:51" (1/1) ... [2022-11-20 21:13:52,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:13:51" (1/1) ... [2022-11-20 21:13:52,115 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:13:51" (1/1) ... [2022-11-20 21:13:52,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:13:51" (1/1) ... [2022-11-20 21:13:52,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:13:52,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:13:52,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:13:52,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:13:52,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:13:51" (1/1) ... [2022-11-20 21:13:52,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:13:52,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:13:52,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:13:52,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:13:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 21:13:52,255 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 21:13:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 21:13:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 21:13:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:13:52,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:13:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 21:13:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 21:13:52,589 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:13:52,592 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:13:55,928 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:13:56,054 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:13:56,054 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-20 21:13:56,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:13:56 BoogieIcfgContainer [2022-11-20 21:13:56,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:13:56,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:13:56,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:13:56,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:13:56,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:13:51" (1/3) ... [2022-11-20 21:13:56,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f6344e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:13:56, skipping insertion in model container [2022-11-20 21:13:56,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:13:51" (2/3) ... [2022-11-20 21:13:56,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f6344e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:13:56, skipping insertion in model container [2022-11-20 21:13:56,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:13:56" (3/3) ... [2022-11-20 21:13:56,066 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c [2022-11-20 21:13:56,084 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:13:56,084 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 21:13:56,129 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:13:56,136 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;@705a7c9c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:13:56,136 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 21:13:56,140 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-20 21:13:56,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 21:13:56,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:13:56,149 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:13:56,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:13:56,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:13:56,154 INFO L85 PathProgramCache]: Analyzing trace with hash -953116364, now seen corresponding path program 1 times [2022-11-20 21:13:56,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:13:56,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069475965] [2022-11-20 21:13:56,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:13:56,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:13:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:13:57,132 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:13:57,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:13:57,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069475965] [2022-11-20 21:13:57,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069475965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:13:57,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:13:57,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:13:57,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887617640] [2022-11-20 21:13:57,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:13:57,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:13:57,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:13:57,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:13:57,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:13:57,175 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 21:13:59,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:13:59,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:13:59,327 INFO L93 Difference]: Finished difference Result 48 states and 71 transitions. [2022-11-20 21:13:59,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:13:59,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 26 [2022-11-20 21:13:59,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:13:59,339 INFO L225 Difference]: With dead ends: 48 [2022-11-20 21:13:59,339 INFO L226 Difference]: Without dead ends: 25 [2022-11-20 21:13:59,343 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 [2022-11-20 21:13:59,347 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:13:59,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 21:13:59,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-20 21:13:59,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-20 21:13:59,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-20 21:13:59,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2022-11-20 21:13:59,398 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 26 [2022-11-20 21:13:59,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:13:59,398 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2022-11-20 21:13:59,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 21:13:59,399 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2022-11-20 21:13:59,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 21:13:59,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:13:59,401 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:13:59,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 21:13:59,402 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:13:59,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:13:59,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1717820294, now seen corresponding path program 1 times [2022-11-20 21:13:59,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:13:59,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778380281] [2022-11-20 21:13:59,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:13:59,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:13:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:13:59,971 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:13:59,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:13:59,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778380281] [2022-11-20 21:13:59,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778380281] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:13:59,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124770097] [2022-11-20 21:13:59,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:13:59,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:13:59,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:13:59,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:13:59,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 21:14:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:14:00,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 21:14:00,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:14:00,519 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:14:00,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:14:00,578 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-20 21:14:00,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124770097] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 21:14:00,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 21:14:00,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 6 [2022-11-20 21:14:00,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975712087] [2022-11-20 21:14:00,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:14:00,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:14:00,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:14:00,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:14:00,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 21:14:00,582 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 21:14:02,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:14:02,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:14:02,686 INFO L93 Difference]: Finished difference Result 47 states and 66 transitions. [2022-11-20 21:14:02,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:14:02,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 27 [2022-11-20 21:14:02,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:14:02,688 INFO L225 Difference]: With dead ends: 47 [2022-11-20 21:14:02,688 INFO L226 Difference]: Without dead ends: 26 [2022-11-20 21:14:02,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 21:14:02,689 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:14:02,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 21:14:02,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-20 21:14:02,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-20 21:14:02,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-20 21:14:02,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2022-11-20 21:14:02,699 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 27 [2022-11-20 21:14:02,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:14:02,700 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2022-11-20 21:14:02,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 21:14:02,700 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2022-11-20 21:14:02,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 21:14:02,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:14:02,701 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:14:02,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 21:14:02,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:14:02,911 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:14:02,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:14:02,912 INFO L85 PathProgramCache]: Analyzing trace with hash -104920270, now seen corresponding path program 1 times [2022-11-20 21:14:02,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:14:02,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465272291] [2022-11-20 21:14:02,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:14:02,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:14:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:14:03,393 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-20 21:14:03,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:14:03,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465272291] [2022-11-20 21:14:03,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465272291] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:14:03,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938843019] [2022-11-20 21:14:03,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:14:03,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:14:03,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:14:03,399 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:14:03,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 21:14:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:14:04,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 21:14:04,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:14:04,556 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-20 21:14:04,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:14:04,623 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-20 21:14:04,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938843019] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 21:14:04,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [230674734] [2022-11-20 21:14:04,650 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-20 21:14:04,650 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 21:14:04,655 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 21:14:04,662 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 21:14:04,662 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 21:14:04,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:14:04,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-20 21:14:04,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2022-11-20 21:14:05,230 INFO L321 Elim1Store]: treesize reduction 41, result has 26.8 percent of original size [2022-11-20 21:14:05,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 316 treesize of output 323 [2022-11-20 21:14:05,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:14:05,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:14:05,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:14:05,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2022-11-20 21:14:06,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:14:06,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:14:10,690 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 10 for LOIs [2022-11-20 21:14:10,692 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 21:14:23,738 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '590#(and (<= 0 |ULTIMATE.start_main_~var_99~0#1|) (<= 0 |ULTIMATE.start_main_~var_142~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_40~0#1| 127) (<= 2 |ULTIMATE.start_main_~msb_SORT_5~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_36~0#1| 31) (<= |ULTIMATE.start_main_~msb_SORT_5~0#1| 2) (<= 0 |ULTIMATE.start_main_~var_23~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_3~0#1| 32768) (<= |ULTIMATE.start_main_~var_120_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_117_arg_0~0#1|) (<= 0 |#NULL.base|) (<= 31 |ULTIMATE.start_main_~mask_SORT_36~0#1|) (<= 0 |ULTIMATE.start_main_~var_101~0#1|) (<= 0 |ULTIMATE.start_main_~var_57~0#1|) (<= 0 |ULTIMATE.start_main_~var_52~0#1|) (<= |ULTIMATE.start_main_~var_50_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~msb_SORT_11~0#1| 128) (<= |ULTIMATE.start_main_~var_99~0#1| 0) (<= |ULTIMATE.start_main_~var_90~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_144_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~i~1#1|) (<= 1 |ULTIMATE.start_main_~var_132_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_21_arg_0~0#1.base|) (<= |ULTIMATE.start_main_~var_91_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_110~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_91_arg_1~0#1|) (<= |ULTIMATE.start_main_~#state_14~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_142_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_82_arg_0~0#1| 1) (<= 16 |ULTIMATE.start_main_~msb_SORT_36~0#1|) (<= 0 (+ |ULTIMATE.start_main_~mask_SORT_229~0#1| 1)) (<= |ULTIMATE.start_main_~var_106~0#1| 1) (<= 128 |ULTIMATE.start_main_~msb_SORT_11~0#1|) (<= |ULTIMATE.start_main_~var_57~0#1| 1) (<= |ULTIMATE.start_main_~var_76~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_77_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_113_arg_0~0#1| 1) (<= 1 |ULTIMATE.start_main_~var_109~0#1|) (<= |ULTIMATE.start_main_~var_126_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_144_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_78~0#1| 1) (<= 4 |ULTIMATE.start_main_~msb_SORT_12~0#1|) (<= |ULTIMATE.start_main_~init_112_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_123_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_102_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_30_arg_1~0#1|) (<= |ULTIMATE.start_main_~#state_44~0#1.offset| 0) (<= 127 |ULTIMATE.start_main_~mask_SORT_40~0#1|) (<= |ULTIMATE.start_main_~var_58_arg_1~0#1| 1) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= |ULTIMATE.start_main_~var_142~0#1| 1) (<= |ULTIMATE.start_main_~var_29~0#1| 1) (<= 32 |ULTIMATE.start_main_~msb_SORT_38~0#1|) (<= 0 |ULTIMATE.start_main_~#state_14~0#1.base|) (<= 64 |ULTIMATE.start_main_~msb_SORT_40~0#1|) (<= 1 |ULTIMATE.start_main_~state_111~0#1|) (<= 8 |ULTIMATE.start_main_~var_27~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_12~0#1| 4) (<= |ULTIMATE.start_main_~var_117_arg_0~0#1| 1) (<= 1 |ULTIMATE.start_main_~var_113_arg_2~0#1|) (<= 1 |ULTIMATE.start_main_~mask_SORT_1~0#1|) (<= 15 |ULTIMATE.start_main_~mask_SORT_15~0#1|) (<= 0 |ULTIMATE.start_main_~var_81~0#1|) (<= |ULTIMATE.start_main_~var_77_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_230~0#1| 2) (<= |ULTIMATE.start_main_~msb_SORT_40~0#1| 64) (<= 0 |ULTIMATE.start_main_~var_82_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_107_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~msb_SORT_229~0#1| 2147483648) (<= |ULTIMATE.start_main_~var_27~0#1| 8) (<= 0 |ULTIMATE.start_main_~var_29~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_5~0#1| 3) (<= |ULTIMATE.start_main_~mask_SORT_15~0#1| 15) (<= |ULTIMATE.start_main_~var_100_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~state_111~0#1| 1) (<= 1 |ULTIMATE.start_main_~var_143_arg_0~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_38~0#1| 63) (<= |ULTIMATE.start_main_~var_113_arg_2~0#1| 1) (<= |ULTIMATE.start_main_~msb_SORT_38~0#1| 32) (<= |ULTIMATE.start_main_~var_410~0#1| 255) (<= |ULTIMATE.start_main_~var_24_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_24_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~var_30_arg_1~0#1| 1) (<= 63 |ULTIMATE.start_main_~mask_SORT_38~0#1|) (<= 7 |ULTIMATE.start_main_~mask_SORT_12~0#1|) (<= |ULTIMATE.start_main_~var_139_arg_0~0#1| 1) (<= 2 |ULTIMATE.start_main_~var_230~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_36~0#1| 16) (<= 255 |ULTIMATE.start_main_~mask_SORT_11~0#1|) (<= 1 |ULTIMATE.start_main_~init_112_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_78~0#1|) (<= 1 |ULTIMATE.start_main_~var_139_arg_0~0#1|) (<= 1 |ULTIMATE.start_main_~var_113_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_23~0#1| 1) (<= |ULTIMATE.start_main_~var_113_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_50_arg_0~0#1.offset|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~var_107_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_106~0#1|) (<= |ULTIMATE.start_main_~var_21_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_82_arg_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_123_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_52~0#1| 1) (<= 65535 |ULTIMATE.start_main_~mask_SORT_3~0#1|) (<= 0 |ULTIMATE.start_main_~var_110~0#1|) (<= 0 |ULTIMATE.start_main_~var_100_arg_1~0#1|) (<= 1 |ULTIMATE.start_main_~msb_SORT_1~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_11~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_73~0#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~var_50_arg_0~0#1.base|) (<= 1 |ULTIMATE.start_main_~var_126_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_143_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_77_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_73~0#1| 1) (<= 32768 |ULTIMATE.start_main_~msb_SORT_3~0#1|) (<= 0 |ULTIMATE.start_main_~#state_44~0#1.offset|) (<= 3 |ULTIMATE.start_main_~mask_SORT_5~0#1|) (<= 255 |ULTIMATE.start_main_~var_410~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_15~0#1| 8) (<= |ULTIMATE.start_main_~var_132_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_113_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_109~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_77_arg_1~0#1|) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_main_~var_183~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_82_arg_1~0#1|) (<= 8 |ULTIMATE.start_main_~msb_SORT_15~0#1|) (<= 0 |ULTIMATE.start_main_~var_76~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_3~0#1| 65535) (<= |ULTIMATE.start_main_~var_101~0#1| 1) (<= |ULTIMATE.start_main_~var_183~0#1| 0) (<= 0 |ULTIMATE.start_main_~#state_14~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_90~0#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~var_58_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_53_arg_0~0#1| 1) (<= 2147483648 |ULTIMATE.start_main_~msb_SORT_229~0#1|) (<= 0 |ULTIMATE.start_main_~var_21_arg_0~0#1.offset|) (<= |ULTIMATE.start_main_~var_81~0#1| 1) (<= |ULTIMATE.start_main_~mask_SORT_1~0#1| 1) (<= |ULTIMATE.start_main_~var_102_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~mask_SORT_12~0#1| 7) (<= 0 |ULTIMATE.start_main_~#state_44~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_53_arg_0~0#1|) (<= 1 |ULTIMATE.start_main_~var_120_arg_0~0#1|) (<= 1 |ULTIMATE.start_main_~var_142_arg_0~0#1|) (<= (+ |ULTIMATE.start_main_~mask_SORT_229~0#1| 1) 0))' at error location [2022-11-20 21:14:23,739 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 21:14:23,739 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 21:14:23,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 8 [2022-11-20 21:14:23,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64144268] [2022-11-20 21:14:23,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 21:14:23,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 21:14:23,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:14:23,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 21:14:23,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2022-11-20 21:14:23,743 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 21:14:26,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:14:26,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:14:26,691 INFO L93 Difference]: Finished difference Result 52 states and 74 transitions. [2022-11-20 21:14:26,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 21:14:26,692 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 28 [2022-11-20 21:14:26,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:14:26,693 INFO L225 Difference]: With dead ends: 52 [2022-11-20 21:14:26,693 INFO L226 Difference]: Without dead ends: 29 [2022-11-20 21:14:26,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2022-11-20 21:14:26,697 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-20 21:14:26,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-20 21:14:26,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-20 21:14:26,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-20 21:14:26,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-20 21:14:26,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2022-11-20 21:14:26,710 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 28 [2022-11-20 21:14:26,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:14:26,711 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2022-11-20 21:14:26,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 21:14:26,711 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2022-11-20 21:14:26,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-20 21:14:26,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:14:26,713 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:14:26,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 21:14:26,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:14:26,927 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:14:26,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:14:26,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1535348420, now seen corresponding path program 2 times [2022-11-20 21:14:26,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:14:26,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709860258] [2022-11-20 21:14:26,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:14:26,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:14:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:14:27,481 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-20 21:14:27,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:14:27,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709860258] [2022-11-20 21:14:27,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709860258] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:14:27,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951018652] [2022-11-20 21:14:27,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 21:14:27,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:14:27,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:14:27,484 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:14:27,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 21:14:28,441 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-20 21:14:28,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 21:14:28,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 21:14:28,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:14:29,621 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-20 21:14:29,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:14:29,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951018652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:14:29,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 21:14:29,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2022-11-20 21:14:29,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057641284] [2022-11-20 21:14:29,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:14:29,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 21:14:29,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:14:29,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 21:14:29,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-20 21:14:29,632 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 21:14:31,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:14:31,964 INFO L93 Difference]: Finished difference Result 59 states and 83 transitions. [2022-11-20 21:14:31,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 21:14:31,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 31 [2022-11-20 21:14:31,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:14:31,966 INFO L225 Difference]: With dead ends: 59 [2022-11-20 21:14:31,966 INFO L226 Difference]: Without dead ends: 57 [2022-11-20 21:14:31,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-20 21:14:31,967 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 66 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 21:14:31,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 71 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 21:14:31,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-20 21:14:31,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 41. [2022-11-20 21:14:31,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 21:14:31,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2022-11-20 21:14:31,980 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 56 transitions. Word has length 31 [2022-11-20 21:14:31,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:14:31,980 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 56 transitions. [2022-11-20 21:14:31,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 21:14:31,981 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2022-11-20 21:14:31,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-20 21:14:31,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:14:31,982 INFO L195 NwaCegarLoop]: trace histogram [10, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:14:31,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 21:14:32,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-20 21:14:32,191 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:14:32,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:14:32,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1505121219, now seen corresponding path program 1 times [2022-11-20 21:14:32,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:14:32,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016036528] [2022-11-20 21:14:32,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:14:32,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:14:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:14:33,797 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-20 21:14:33,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:14:33,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016036528] [2022-11-20 21:14:33,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016036528] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:14:33,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010873806] [2022-11-20 21:14:33,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:14:33,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:14:33,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:14:33,804 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:14:33,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 21:14:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:14:34,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 2061 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 21:14:34,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:14:34,612 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 62 proven. 4 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-11-20 21:14:34,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:14:34,655 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-20 21:14:34,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010873806] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 21:14:34,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 21:14:34,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 4] total 9 [2022-11-20 21:14:34,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885852488] [2022-11-20 21:14:34,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:14:34,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:14:34,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:14:34,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:14:34,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-20 21:14:34,659 INFO L87 Difference]: Start difference. First operand 41 states and 56 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 21:14:36,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:14:36,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:14:36,416 INFO L93 Difference]: Finished difference Result 63 states and 87 transitions. [2022-11-20 21:14:36,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:14:36,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 58 [2022-11-20 21:14:36,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:14:36,418 INFO L225 Difference]: With dead ends: 63 [2022-11-20 21:14:36,419 INFO L226 Difference]: Without dead ends: 42 [2022-11-20 21:14:36,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 113 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-20 21:14:36,420 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-20 21:14:36,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-20 21:14:36,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-20 21:14:36,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-20 21:14:36,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 21:14:36,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 57 transitions. [2022-11-20 21:14:36,432 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 57 transitions. Word has length 58 [2022-11-20 21:14:36,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:14:36,432 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 57 transitions. [2022-11-20 21:14:36,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 21:14:36,433 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 57 transitions. [2022-11-20 21:14:36,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 21:14:36,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:14:36,434 INFO L195 NwaCegarLoop]: trace histogram [10, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:14:36,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 21:14:36,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:14:36,639 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:14:36,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:14:36,640 INFO L85 PathProgramCache]: Analyzing trace with hash -552639346, now seen corresponding path program 1 times [2022-11-20 21:14:36,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:14:36,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868524250] [2022-11-20 21:14:36,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:14:36,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:14:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:14:37,899 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-11-20 21:14:37,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:14:37,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868524250] [2022-11-20 21:14:37,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868524250] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:14:37,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687062676] [2022-11-20 21:14:37,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:14:37,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:14:37,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:14:37,902 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:14:37,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 21:14:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:14:38,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 2068 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 21:14:38,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:14:38,756 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 62 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-20 21:14:38,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:14:38,798 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-20 21:14:38,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687062676] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 21:14:38,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 21:14:38,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 4] total 9 [2022-11-20 21:14:38,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257171292] [2022-11-20 21:14:38,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:14:38,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:14:38,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:14:38,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:14:38,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-20 21:14:38,805 INFO L87 Difference]: Start difference. First operand 42 states and 57 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 21:14:40,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:14:40,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:14:40,889 INFO L93 Difference]: Finished difference Result 65 states and 89 transitions. [2022-11-20 21:14:40,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:14:40,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 59 [2022-11-20 21:14:40,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:14:40,891 INFO L225 Difference]: With dead ends: 65 [2022-11-20 21:14:40,891 INFO L226 Difference]: Without dead ends: 43 [2022-11-20 21:14:40,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-20 21:14:40,892 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:14:40,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 21:14:40,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-20 21:14:40,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-20 21:14:40,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 21:14:40,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2022-11-20 21:14:40,901 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 59 [2022-11-20 21:14:40,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:14:40,901 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2022-11-20 21:14:40,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 21:14:40,902 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2022-11-20 21:14:40,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-20 21:14:40,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:14:40,903 INFO L195 NwaCegarLoop]: trace histogram [10, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:14:40,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 21:14:41,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-20 21:14:41,114 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:14:41,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:14:41,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1159343183, now seen corresponding path program 1 times [2022-11-20 21:14:41,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:14:41,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778910760] [2022-11-20 21:14:41,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:14:41,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:14:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:14:42,361 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-20 21:14:42,362 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:14:42,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778910760] [2022-11-20 21:14:42,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778910760] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:14:42,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518991500] [2022-11-20 21:14:42,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:14:42,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:14:42,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:14:42,372 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:14:42,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 21:14:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:14:43,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 2075 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 21:14:43,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:14:43,381 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 62 proven. 4 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-11-20 21:14:43,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:14:43,448 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-20 21:14:43,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518991500] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 21:14:43,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 21:14:43,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 4] total 9 [2022-11-20 21:14:43,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031528353] [2022-11-20 21:14:43,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:14:43,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:14:43,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:14:43,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:14:43,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-20 21:14:43,454 INFO L87 Difference]: Start difference. First operand 43 states and 58 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 21:14:45,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:14:45,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:14:45,547 INFO L93 Difference]: Finished difference Result 67 states and 91 transitions. [2022-11-20 21:14:45,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:14:45,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 60 [2022-11-20 21:14:45,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:14:45,550 INFO L225 Difference]: With dead ends: 67 [2022-11-20 21:14:45,550 INFO L226 Difference]: Without dead ends: 44 [2022-11-20 21:14:45,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-20 21:14:45,551 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:14:45,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 21:14:45,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-20 21:14:45,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-20 21:14:45,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 21:14:45,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2022-11-20 21:14:45,561 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 59 transitions. Word has length 60 [2022-11-20 21:14:45,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:14:45,562 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 59 transitions. [2022-11-20 21:14:45,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 21:14:45,562 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 59 transitions. [2022-11-20 21:14:45,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-20 21:14:45,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:14:45,564 INFO L195 NwaCegarLoop]: trace histogram [10, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:14:45,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 21:14:45,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:14:45,776 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:14:45,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:14:45,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1097501890, now seen corresponding path program 1 times [2022-11-20 21:14:45,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:14:45,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423210384] [2022-11-20 21:14:45,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:14:45,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:14:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:14:46,957 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-11-20 21:14:46,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:14:46,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423210384] [2022-11-20 21:14:46,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423210384] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:14:46,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871694727] [2022-11-20 21:14:46,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:14:46,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:14:46,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:14:46,959 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:14:46,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 21:14:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:14:47,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 2082 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 21:14:47,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:14:47,873 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 62 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-20 21:14:47,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:14:47,935 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-11-20 21:14:47,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871694727] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 21:14:47,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 21:14:47,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 4] total 9 [2022-11-20 21:14:47,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413411639] [2022-11-20 21:14:47,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:14:47,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:14:47,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:14:47,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:14:47,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-20 21:14:47,940 INFO L87 Difference]: Start difference. First operand 44 states and 59 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 21:14:49,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:14:50,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:14:50,027 INFO L93 Difference]: Finished difference Result 69 states and 93 transitions. [2022-11-20 21:14:50,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:14:50,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 61 [2022-11-20 21:14:50,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:14:50,029 INFO L225 Difference]: With dead ends: 69 [2022-11-20 21:14:50,029 INFO L226 Difference]: Without dead ends: 45 [2022-11-20 21:14:50,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-20 21:14:50,030 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:14:50,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 21:14:50,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-20 21:14:50,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-20 21:14:50,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 33 states have internal predecessors, (40), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 21:14:50,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2022-11-20 21:14:50,040 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 61 [2022-11-20 21:14:50,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:14:50,040 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2022-11-20 21:14:50,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 21:14:50,041 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2022-11-20 21:14:50,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-20 21:14:50,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:14:50,042 INFO L195 NwaCegarLoop]: trace histogram [10, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:14:50,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 21:14:50,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:14:50,254 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:14:50,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:14:50,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1100613158, now seen corresponding path program 1 times [2022-11-20 21:14:50,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:14:50,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812949682] [2022-11-20 21:14:50,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:14:50,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:14:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:14:51,409 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-11-20 21:14:51,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:14:51,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812949682] [2022-11-20 21:14:51,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812949682] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:14:51,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817452747] [2022-11-20 21:14:51,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:14:51,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:14:51,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:14:51,411 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:14:51,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 21:14:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:14:52,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 2089 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 21:14:52,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:14:52,365 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-20 21:14:52,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:14:52,429 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-11-20 21:14:52,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817452747] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 21:14:52,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1562909082] [2022-11-20 21:14:52,433 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-20 21:14:52,433 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 21:14:52,434 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 21:14:52,434 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 21:14:52,434 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 21:14:52,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-20 21:14:52,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:14:52,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:14:52,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:14:52,658 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 329 treesize of output 328 [2022-11-20 21:14:52,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:14:52,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:14:52,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:14:52,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2022-11-20 21:14:53,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:14:53,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:14:56,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:14:56,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:14:56,703 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:14:56,725 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:14:56,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:14:57,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:14:57,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:14:57,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:14:57,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:14:57,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:14:57,477 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:14:57,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:14:57,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:14:57,944 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:14:57,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:14:59,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:14:59,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:14:59,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:15:00,322 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:00,347 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:00,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:01,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:01,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:01,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:01,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:01,783 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:15:01,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:15:02,536 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:02,563 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:02,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:03,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:15:04,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:04,033 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:04,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:05,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:05,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:05,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:05,539 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:05,540 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:05,569 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:15:05,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:15:06,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:06,525 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:06,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:07,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:07,255 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:07,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:08,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:08,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:08,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:08,701 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:08,734 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:15:08,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 106 [2022-11-20 21:15:09,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:09,554 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:09,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:10,295 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-20 21:15:10,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-20 21:15:23,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:15:23,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:15:24,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:24,752 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:24,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:25,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:25,367 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:25,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:26,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:15:26,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:15:27,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:15:27,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:28,033 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:28,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:29,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:29,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:29,329 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:29,330 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:29,359 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:15:29,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:15:30,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:30,224 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:30,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:30,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:15:31,530 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:31,559 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:31,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:33,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:33,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:33,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:33,481 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:33,482 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:33,517 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:15:33,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:15:34,513 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:34,539 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:34,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:35,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:35,346 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:35,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:36,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:36,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:36,999 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:37,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:37,031 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:15:37,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 106 [2022-11-20 21:15:37,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:37,810 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:37,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:38,380 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-20 21:15:38,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-20 21:15:50,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:15:50,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:15:51,478 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:51,531 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:51,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:52,406 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:52,428 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:52,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:53,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:15:53,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:15:53,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:15:54,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:54,646 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:54,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:55,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:55,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:55,875 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:55,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:55,904 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:15:55,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:15:56,555 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:56,595 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:56,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:57,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:15:57,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:57,822 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:15:57,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:15:59,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:59,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:59,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:15:59,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:59,457 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:15:59,488 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:15:59,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:16:00,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:16:00,348 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:16:00,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:16:01,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:16:01,202 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-20 21:16:01,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-20 21:16:03,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:16:03,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:16:03,334 INFO L321 Elim1Store]: treesize reduction 94, result has 36.5 percent of original size [2022-11-20 21:16:03,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 113 [2022-11-20 21:16:04,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:16:04,668 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:16:04,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:16:05,505 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-20 21:16:05,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-20 21:16:31,560 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 14 for LOIs [2022-11-20 21:16:31,562 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 21:16:44,562 WARN L233 SmtUtils]: Spent 10.11s on a formula simplification. DAG size of input: 640 DAG size of output: 460 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 21:17:09,347 WARN L233 SmtUtils]: Spent 24.42s on a formula simplification. DAG size of input: 556 DAG size of output: 524 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 21:17:30,330 WARN L233 SmtUtils]: Spent 10.19s on a formula simplification. DAG size of input: 437 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 21:17:45,336 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3520#(and (<= 0 |ULTIMATE.start_main_~var_99~0#1|) (<= 0 |ULTIMATE.start_main_~var_142~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_40~0#1| 127) (<= 2 |ULTIMATE.start_main_~msb_SORT_5~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_36~0#1| 31) (<= |ULTIMATE.start_main_~msb_SORT_5~0#1| 2) (<= 0 |ULTIMATE.start_main_~var_23~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_3~0#1| 32768) (<= |ULTIMATE.start_main_~var_120_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_117_arg_0~0#1|) (<= 0 |#NULL.base|) (<= 31 |ULTIMATE.start_main_~mask_SORT_36~0#1|) (<= 0 |ULTIMATE.start_main_~var_101~0#1|) (<= 0 |ULTIMATE.start_main_~var_57~0#1|) (<= 0 |ULTIMATE.start_main_~var_52~0#1|) (<= |ULTIMATE.start_main_~var_50_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~msb_SORT_11~0#1| 128) (<= |ULTIMATE.start_main_~var_99~0#1| 0) (<= |ULTIMATE.start_main_~var_90~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_144_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~i~1#1|) (<= 1 |ULTIMATE.start_main_~var_132_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_21_arg_0~0#1.base|) (<= |ULTIMATE.start_main_~var_91_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_110~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_91_arg_1~0#1|) (<= |ULTIMATE.start_main_~#state_14~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_142_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_82_arg_0~0#1| 1) (<= 16 |ULTIMATE.start_main_~msb_SORT_36~0#1|) (<= 0 (+ |ULTIMATE.start_main_~mask_SORT_229~0#1| 1)) (<= |ULTIMATE.start_main_~var_106~0#1| 1) (<= 128 |ULTIMATE.start_main_~msb_SORT_11~0#1|) (<= |ULTIMATE.start_main_~var_57~0#1| 1) (<= |ULTIMATE.start_main_~var_76~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_77_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_113_arg_0~0#1| 1) (<= 1 |ULTIMATE.start_main_~var_109~0#1|) (<= |ULTIMATE.start_main_~var_126_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_144_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_78~0#1| 1) (<= 4 |ULTIMATE.start_main_~msb_SORT_12~0#1|) (<= |ULTIMATE.start_main_~init_112_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_123_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_102_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_30_arg_1~0#1|) (<= |ULTIMATE.start_main_~#state_44~0#1.offset| 0) (<= 127 |ULTIMATE.start_main_~mask_SORT_40~0#1|) (<= |ULTIMATE.start_main_~var_58_arg_1~0#1| 1) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= |ULTIMATE.start_main_~var_142~0#1| 1) (<= |ULTIMATE.start_main_~var_29~0#1| 1) (<= 32 |ULTIMATE.start_main_~msb_SORT_38~0#1|) (<= 0 |ULTIMATE.start_main_~#state_14~0#1.base|) (<= 64 |ULTIMATE.start_main_~msb_SORT_40~0#1|) (<= 8 |ULTIMATE.start_main_~var_27~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_12~0#1| 4) (<= |ULTIMATE.start_main_~var_117_arg_0~0#1| 1) (<= 1 |ULTIMATE.start_main_~var_113_arg_2~0#1|) (<= 1 |ULTIMATE.start_main_~mask_SORT_1~0#1|) (<= 15 |ULTIMATE.start_main_~mask_SORT_15~0#1|) (<= 0 |ULTIMATE.start_main_~var_81~0#1|) (<= |ULTIMATE.start_main_~var_77_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_230~0#1| 2) (<= |ULTIMATE.start_main_~msb_SORT_40~0#1| 64) (<= 0 |ULTIMATE.start_main_~var_82_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_107_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~msb_SORT_229~0#1| 2147483648) (<= |ULTIMATE.start_main_~var_27~0#1| 8) (<= 0 |ULTIMATE.start_main_~var_29~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_5~0#1| 3) (<= |ULTIMATE.start_main_~mask_SORT_15~0#1| 15) (<= |ULTIMATE.start_main_~var_100_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~state_111~0#1| 1) (<= 1 |ULTIMATE.start_main_~var_143_arg_0~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_38~0#1| 63) (<= |ULTIMATE.start_main_~var_113_arg_2~0#1| 1) (<= |ULTIMATE.start_main_~msb_SORT_38~0#1| 32) (<= |ULTIMATE.start_main_~var_410~0#1| 255) (<= |ULTIMATE.start_main_~var_24_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_24_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~var_30_arg_1~0#1| 1) (<= 63 |ULTIMATE.start_main_~mask_SORT_38~0#1|) (<= 7 |ULTIMATE.start_main_~mask_SORT_12~0#1|) (<= |ULTIMATE.start_main_~var_139_arg_0~0#1| 1) (<= 2 |ULTIMATE.start_main_~var_230~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_36~0#1| 16) (<= 255 |ULTIMATE.start_main_~mask_SORT_11~0#1|) (<= 1 |ULTIMATE.start_main_~init_112_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_78~0#1|) (<= 1 |ULTIMATE.start_main_~var_139_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_23~0#1| 1) (<= |ULTIMATE.start_main_~var_113_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_50_arg_0~0#1.offset|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~var_107_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_106~0#1|) (or (and (<= 0 |ULTIMATE.start_main_~var_209_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_442_arg_1~0#1| 0) (<= 1 |ULTIMATE.start_main_~var_444_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_214_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_152_arg_0~0#1| 0) (<= 0 |ULTIMATE.start_main_~next_440_arg_1~0#1.base|) (<= |ULTIMATE.start_main_~var_418~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_437_arg_0~0#1.base|) (<= |ULTIMATE.start_main_~var_439_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_47_arg_0~0#1.offset|) (<= |ULTIMATE.start_main_~var_209_arg_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_142_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~next_455_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_142_arg_0~0#1| 0) (<= |ULTIMATE.start_main_~var_439_arg_2~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_432_arg_0~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_423_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_2~0#1.base|) (<= |ULTIMATE.start_main_~next_419_arg_1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_453_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_424_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_432_arg_0~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_18_arg_0~0#1.offset|) (<= |ULTIMATE.start_main_~var_416_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_438~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_184_arg_1~0#1|) (<= |ULTIMATE.start_main_~state_111~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_411_arg_0~0#1.offset|) (<= |ULTIMATE.start_main_~var_412_arg_0~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_439_arg_0~0#1|) (<= 255 |ULTIMATE.start_main_~var_412_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_184_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_430_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_208~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_416_arg_0~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_416_arg_0~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_208~0#1|) (<= |ULTIMATE.start_main_~var_423_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_201_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_435_arg_1~0#1| 255) (<= |ULTIMATE.start_main_~var_445_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_438_arg_0~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_439_arg_2~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_408_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_1~0#1.offset|) (<= |ULTIMATE.start_main_~var_418_arg_0~0#1| 1) (<= 255 |ULTIMATE.start_main_~var_417_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_418~0#1.offset|) (<= 0 |ULTIMATE.start_main_~i~2#1|) (<= 0 |ULTIMATE.start_main_~var_405_arg_1~0#1|) (<= 255 |ULTIMATE.start_main_~var_438_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_418_arg_2~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_421_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_417~0#1| 1) (<= |ULTIMATE.start_main_~var_218~0#1| 1) (<= |ULTIMATE.start_main_~var_411_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_418_arg_1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_447_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_439~0#1.offset|) (<= |ULTIMATE.start_main_~var_439_arg_1~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_201_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~next_419_arg_1~0#1.base|) (<= |ULTIMATE.start_main_~var_433_arg_0~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_450_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_1~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_442_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_427_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_213~0#1|) (<= |ULTIMATE.start_main_~var_414_arg_1~0#1| 255) (<= 0 |ULTIMATE.start_main_~state_111~0#1|) (<= 0 |ULTIMATE.start_main_~var_439_arg_1~0#1.base|) (<= 0 |ULTIMATE.start_main_~next_440_arg_1~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_445_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_0~0#1|) (<= 255 |ULTIMATE.start_main_~var_435_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_421_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_447_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_47_arg_0~0#1.base|) (<= 255 |ULTIMATE.start_main_~var_433_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_439_arg_1~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_214_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_113_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_437_arg_0~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_18_arg_0~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_417~0#1|) (<= 0 |ULTIMATE.start_main_~var_152_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_2~0#1.offset|) (<= |ULTIMATE.start_main_~var_47_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~next_440_arg_1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_439~0#1.base|) (<= |ULTIMATE.start_main_~var_453_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_439~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_417_arg_0~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_418~0#1.base|) (<= |ULTIMATE.start_main_~next_455_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_405_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_438~0#1|) (<= 0 |ULTIMATE.start_main_~var_411_arg_0~0#1.base|) (<= |ULTIMATE.start_main_~var_450_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~i~3#1|) (<= |ULTIMATE.start_main_~var_18_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_444_arg_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_430_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_427_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_113_arg_0~0#1| 0) (<= |ULTIMATE.start_main_~var_432_arg_0~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_437_arg_0~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_218~0#1|) (<= 0 |ULTIMATE.start_main_~var_439_arg_2~0#1.offset|) (<= 0 |ULTIMATE.start_main_~i~5#1|) (<= |ULTIMATE.start_main_~var_213~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_424_arg_1~0#1|) (<= 255 |ULTIMATE.start_main_~var_414_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_408_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~i~4#1|) (<= 0 |ULTIMATE.start_main_~next_419_arg_1~0#1.offset|)) (and (<= 1 |ULTIMATE.start_main_~state_111~0#1|) (<= 1 |ULTIMATE.start_main_~var_113_arg_0~0#1|) (<= 1 |ULTIMATE.start_main_~var_142_arg_0~0#1|))) (<= |ULTIMATE.start_main_~var_21_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_82_arg_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_123_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_52~0#1| 1) (<= 65535 |ULTIMATE.start_main_~mask_SORT_3~0#1|) (<= 0 |ULTIMATE.start_main_~var_110~0#1|) (<= 0 |ULTIMATE.start_main_~var_100_arg_1~0#1|) (<= 1 |ULTIMATE.start_main_~msb_SORT_1~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_11~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_73~0#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~var_50_arg_0~0#1.base|) (<= 1 |ULTIMATE.start_main_~var_126_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_143_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_77_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_73~0#1| 1) (<= 32768 |ULTIMATE.start_main_~msb_SORT_3~0#1|) (<= 0 |ULTIMATE.start_main_~#state_44~0#1.offset|) (<= 3 |ULTIMATE.start_main_~mask_SORT_5~0#1|) (<= 255 |ULTIMATE.start_main_~var_410~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_15~0#1| 8) (<= |ULTIMATE.start_main_~var_132_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_113_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_109~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_77_arg_1~0#1|) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_main_~var_183~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_82_arg_1~0#1|) (<= 8 |ULTIMATE.start_main_~msb_SORT_15~0#1|) (<= 0 |ULTIMATE.start_main_~var_76~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_3~0#1| 65535) (<= |ULTIMATE.start_main_~var_101~0#1| 1) (<= |ULTIMATE.start_main_~var_183~0#1| 0) (<= 0 |ULTIMATE.start_main_~#state_14~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_90~0#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~var_58_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_53_arg_0~0#1| 1) (<= 2147483648 |ULTIMATE.start_main_~msb_SORT_229~0#1|) (<= 0 |ULTIMATE.start_main_~var_21_arg_0~0#1.offset|) (<= |ULTIMATE.start_main_~var_81~0#1| 1) (<= |ULTIMATE.start_main_~mask_SORT_1~0#1| 1) (<= |ULTIMATE.start_main_~var_102_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~mask_SORT_12~0#1| 7) (<= 0 |ULTIMATE.start_main_~#state_44~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_53_arg_0~0#1|) (<= 1 |ULTIMATE.start_main_~var_120_arg_0~0#1|) (<= (+ |ULTIMATE.start_main_~mask_SORT_229~0#1| 1) 0))' at error location [2022-11-20 21:17:45,337 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 21:17:45,337 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 21:17:45,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 4] total 11 [2022-11-20 21:17:45,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72333282] [2022-11-20 21:17:45,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 21:17:45,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 21:17:45,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:17:45,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 21:17:45,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=897, Unknown=0, NotChecked=0, Total=1056 [2022-11-20 21:17:45,339 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 21:17:47,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:17:47,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:17:47,554 INFO L93 Difference]: Finished difference Result 88 states and 121 transitions. [2022-11-20 21:17:47,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 21:17:47,555 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 62 [2022-11-20 21:17:47,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:17:47,555 INFO L225 Difference]: With dead ends: 88 [2022-11-20 21:17:47,556 INFO L226 Difference]: Without dead ends: 49 [2022-11-20 21:17:47,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 159 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 73.8s TimeCoverageRelationStatistics Valid=165, Invalid=957, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 21:17:47,558 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 21:17:47,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 92 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 21:17:47,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-20 21:17:47,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-20 21:17:47,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 37 states have internal predecessors, (44), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 21:17:47,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 64 transitions. [2022-11-20 21:17:47,569 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 64 transitions. Word has length 62 [2022-11-20 21:17:47,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:17:47,570 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 64 transitions. [2022-11-20 21:17:47,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 21:17:47,570 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2022-11-20 21:17:47,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-20 21:17:47,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:17:47,572 INFO L195 NwaCegarLoop]: trace histogram [10, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:17:47,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-20 21:17:47,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-20 21:17:47,786 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:17:47,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:17:47,786 INFO L85 PathProgramCache]: Analyzing trace with hash -85362012, now seen corresponding path program 2 times [2022-11-20 21:17:47,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:17:47,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680966843] [2022-11-20 21:17:47,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:17:47,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:17:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:17:49,106 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-11-20 21:17:49,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:17:49,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680966843] [2022-11-20 21:17:49,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680966843] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:17:49,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081934597] [2022-11-20 21:17:49,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 21:17:49,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:17:49,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:17:49,109 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:17:49,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 21:18:53,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-20 21:18:53,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 21:18:53,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1808 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 21:18:53,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:18:53,110 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 62 proven. 10 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-20 21:18:53,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:18:53,185 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-11-20 21:18:53,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081934597] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 21:18:53,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1747418509] [2022-11-20 21:18:53,189 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-20 21:18:53,189 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 21:18:53,190 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 21:18:53,190 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 21:18:53,190 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 21:18:53,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:18:53,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-20 21:18:53,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:18:53,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:18:53,406 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 329 treesize of output 328 [2022-11-20 21:18:53,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:18:53,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:18:53,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:18:53,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2022-11-20 21:18:53,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:18:53,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:18:56,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:18:56,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:18:56,713 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:18:56,736 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:18:56,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:18:57,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:18:57,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:18:57,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:18:57,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:18:57,327 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:18:57,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:18:57,653 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:18:57,677 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:18:57,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:18:58,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:18:59,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:18:59,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:18:59,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:18:59,837 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:18:59,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:00,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:19:00,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:19:00,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:00,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:01,002 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:19:01,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:19:01,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:01,599 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:01,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:02,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:19:02,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:02,965 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:02,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:04,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:19:04,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:19:04,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:19:04,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:04,281 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:04,317 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:19:04,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:19:05,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:05,105 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:05,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:05,764 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:05,794 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:05,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:07,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:19:07,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:19:07,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:07,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:07,237 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:19:07,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 106 [2022-11-20 21:19:08,011 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:08,043 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:08,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:08,452 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-20 21:19:08,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-20 21:19:18,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:19:19,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:19:20,467 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:20,501 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:20,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:20,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:20,902 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:20,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:21,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:19:22,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:19:22,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:19:23,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:23,098 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:23,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:24,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:19:24,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:19:24,118 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:24,119 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:24,147 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:19:24,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:19:24,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:24,809 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:24,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:25,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:19:26,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:26,101 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:26,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:27,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:19:27,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:19:27,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:19:27,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:27,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:27,401 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:19:27,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:19:28,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:28,260 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:28,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:28,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:28,922 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-20 21:19:28,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-20 21:19:30,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:30,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:30,292 INFO L321 Elim1Store]: treesize reduction 104, result has 29.7 percent of original size [2022-11-20 21:19:30,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 103 [2022-11-20 21:19:31,126 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:31,156 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:31,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:31,684 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-20 21:19:31,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-20 21:19:41,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:19:42,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:19:42,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:42,870 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:42,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:43,792 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:43,816 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:43,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:44,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:19:45,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:19:45,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:19:45,864 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:45,895 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:45,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:46,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:19:47,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:19:47,002 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:47,003 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:47,033 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:19:47,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:19:47,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:47,646 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:47,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:48,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:19:48,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:48,994 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:48,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:50,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:19:50,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:19:50,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:19:50,270 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:50,271 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:50,305 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:19:50,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:19:51,034 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:51,063 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:51,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:51,771 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:51,802 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-20 21:19:51,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-20 21:19:53,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:53,141 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:53,212 INFO L321 Elim1Store]: treesize reduction 104, result has 29.7 percent of original size [2022-11-20 21:19:53,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 103 [2022-11-20 21:19:54,023 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:19:54,052 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:19:54,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:19:54,565 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-20 21:19:54,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-20 21:20:16,732 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 14 for LOIs [2022-11-20 21:20:16,734 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 21:20:33,231 WARN L233 SmtUtils]: Spent 13.35s on a formula simplification. DAG size of input: 640 DAG size of output: 465 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 21:20:50,042 WARN L233 SmtUtils]: Spent 16.39s on a formula simplification. DAG size of input: 556 DAG size of output: 518 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 21:21:11,316 WARN L233 SmtUtils]: Spent 10.26s on a formula simplification. DAG size of input: 437 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 21:21:25,360 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4170#(and (<= 0 |ULTIMATE.start_main_~var_99~0#1|) (<= 0 |ULTIMATE.start_main_~var_142~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_40~0#1| 127) (<= 2 |ULTIMATE.start_main_~msb_SORT_5~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_36~0#1| 31) (<= |ULTIMATE.start_main_~msb_SORT_5~0#1| 2) (<= 0 |ULTIMATE.start_main_~var_23~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_3~0#1| 32768) (<= |ULTIMATE.start_main_~var_120_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_117_arg_0~0#1|) (<= 0 |#NULL.base|) (<= 31 |ULTIMATE.start_main_~mask_SORT_36~0#1|) (<= 0 |ULTIMATE.start_main_~var_101~0#1|) (<= 0 |ULTIMATE.start_main_~var_57~0#1|) (<= 0 |ULTIMATE.start_main_~var_52~0#1|) (<= |ULTIMATE.start_main_~var_50_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~msb_SORT_11~0#1| 128) (<= |ULTIMATE.start_main_~var_99~0#1| 0) (<= |ULTIMATE.start_main_~var_90~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_144_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~i~1#1|) (<= 1 |ULTIMATE.start_main_~var_132_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_21_arg_0~0#1.base|) (<= |ULTIMATE.start_main_~var_91_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_110~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_91_arg_1~0#1|) (<= |ULTIMATE.start_main_~#state_14~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_142_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_82_arg_0~0#1| 1) (<= 16 |ULTIMATE.start_main_~msb_SORT_36~0#1|) (<= 0 (+ |ULTIMATE.start_main_~mask_SORT_229~0#1| 1)) (<= |ULTIMATE.start_main_~var_106~0#1| 1) (<= 128 |ULTIMATE.start_main_~msb_SORT_11~0#1|) (<= |ULTIMATE.start_main_~var_57~0#1| 1) (<= |ULTIMATE.start_main_~var_76~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_77_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_113_arg_0~0#1| 1) (<= 1 |ULTIMATE.start_main_~var_109~0#1|) (<= |ULTIMATE.start_main_~var_126_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_144_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_78~0#1| 1) (<= 4 |ULTIMATE.start_main_~msb_SORT_12~0#1|) (<= |ULTIMATE.start_main_~init_112_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_123_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_102_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_30_arg_1~0#1|) (<= |ULTIMATE.start_main_~#state_44~0#1.offset| 0) (<= 127 |ULTIMATE.start_main_~mask_SORT_40~0#1|) (<= |ULTIMATE.start_main_~var_58_arg_1~0#1| 1) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= |ULTIMATE.start_main_~var_142~0#1| 1) (<= |ULTIMATE.start_main_~var_29~0#1| 1) (<= 32 |ULTIMATE.start_main_~msb_SORT_38~0#1|) (<= 0 |ULTIMATE.start_main_~#state_14~0#1.base|) (<= 64 |ULTIMATE.start_main_~msb_SORT_40~0#1|) (<= 8 |ULTIMATE.start_main_~var_27~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_12~0#1| 4) (<= |ULTIMATE.start_main_~var_117_arg_0~0#1| 1) (<= 1 |ULTIMATE.start_main_~var_113_arg_2~0#1|) (<= 1 |ULTIMATE.start_main_~mask_SORT_1~0#1|) (<= 15 |ULTIMATE.start_main_~mask_SORT_15~0#1|) (<= 0 |ULTIMATE.start_main_~var_81~0#1|) (<= |ULTIMATE.start_main_~var_77_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_230~0#1| 2) (<= |ULTIMATE.start_main_~msb_SORT_40~0#1| 64) (<= 0 |ULTIMATE.start_main_~var_82_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_107_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~msb_SORT_229~0#1| 2147483648) (<= |ULTIMATE.start_main_~var_27~0#1| 8) (<= 0 |ULTIMATE.start_main_~var_29~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_5~0#1| 3) (<= |ULTIMATE.start_main_~mask_SORT_15~0#1| 15) (<= |ULTIMATE.start_main_~var_100_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~state_111~0#1| 1) (<= 1 |ULTIMATE.start_main_~var_143_arg_0~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_38~0#1| 63) (<= |ULTIMATE.start_main_~var_113_arg_2~0#1| 1) (<= |ULTIMATE.start_main_~msb_SORT_38~0#1| 32) (<= |ULTIMATE.start_main_~var_410~0#1| 255) (<= |ULTIMATE.start_main_~var_24_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_24_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~var_30_arg_1~0#1| 1) (<= 63 |ULTIMATE.start_main_~mask_SORT_38~0#1|) (<= 7 |ULTIMATE.start_main_~mask_SORT_12~0#1|) (<= |ULTIMATE.start_main_~var_139_arg_0~0#1| 1) (<= 2 |ULTIMATE.start_main_~var_230~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_36~0#1| 16) (<= 255 |ULTIMATE.start_main_~mask_SORT_11~0#1|) (<= 1 |ULTIMATE.start_main_~init_112_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_78~0#1|) (<= 1 |ULTIMATE.start_main_~var_139_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_23~0#1| 1) (<= |ULTIMATE.start_main_~var_113_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_50_arg_0~0#1.offset|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~var_107_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_106~0#1|) (or (and (<= 0 |ULTIMATE.start_main_~var_209_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_442_arg_1~0#1| 0) (<= 1 |ULTIMATE.start_main_~var_444_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_214_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_152_arg_0~0#1| 0) (<= 0 |ULTIMATE.start_main_~next_440_arg_1~0#1.base|) (<= |ULTIMATE.start_main_~var_418~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_437_arg_0~0#1.base|) (<= |ULTIMATE.start_main_~var_439_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_47_arg_0~0#1.offset|) (<= |ULTIMATE.start_main_~var_209_arg_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_142_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~next_455_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_142_arg_0~0#1| 0) (<= |ULTIMATE.start_main_~var_439_arg_2~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_432_arg_0~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_423_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_2~0#1.base|) (<= |ULTIMATE.start_main_~next_419_arg_1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_453_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_424_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_432_arg_0~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_18_arg_0~0#1.offset|) (<= |ULTIMATE.start_main_~var_416_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_438~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_184_arg_1~0#1|) (<= |ULTIMATE.start_main_~state_111~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_411_arg_0~0#1.offset|) (<= |ULTIMATE.start_main_~var_412_arg_0~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_439_arg_0~0#1|) (<= 255 |ULTIMATE.start_main_~var_412_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_184_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_430_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_208~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_416_arg_0~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_416_arg_0~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_208~0#1|) (<= |ULTIMATE.start_main_~var_423_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_201_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_435_arg_1~0#1| 255) (<= |ULTIMATE.start_main_~var_445_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_438_arg_0~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_439_arg_2~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_408_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_1~0#1.offset|) (<= |ULTIMATE.start_main_~var_418_arg_0~0#1| 1) (<= 255 |ULTIMATE.start_main_~var_417_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_418~0#1.offset|) (<= 0 |ULTIMATE.start_main_~i~2#1|) (<= 0 |ULTIMATE.start_main_~var_405_arg_1~0#1|) (<= 255 |ULTIMATE.start_main_~var_438_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_418_arg_2~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_421_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_417~0#1| 1) (<= |ULTIMATE.start_main_~var_218~0#1| 1) (<= |ULTIMATE.start_main_~var_411_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_418_arg_1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_447_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_439~0#1.offset|) (<= |ULTIMATE.start_main_~var_439_arg_1~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_201_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~next_419_arg_1~0#1.base|) (<= |ULTIMATE.start_main_~var_433_arg_0~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_450_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_1~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_442_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_427_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_213~0#1|) (<= |ULTIMATE.start_main_~var_414_arg_1~0#1| 255) (<= 0 |ULTIMATE.start_main_~state_111~0#1|) (<= 0 |ULTIMATE.start_main_~var_439_arg_1~0#1.base|) (<= 0 |ULTIMATE.start_main_~next_440_arg_1~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_445_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_0~0#1|) (<= 255 |ULTIMATE.start_main_~var_435_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_421_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_447_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_47_arg_0~0#1.base|) (<= 255 |ULTIMATE.start_main_~var_433_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_439_arg_1~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_214_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_113_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_437_arg_0~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_18_arg_0~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_417~0#1|) (<= 0 |ULTIMATE.start_main_~var_152_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_2~0#1.offset|) (<= |ULTIMATE.start_main_~var_47_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~next_440_arg_1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_439~0#1.base|) (<= |ULTIMATE.start_main_~var_453_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_439~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_417_arg_0~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_418~0#1.base|) (<= |ULTIMATE.start_main_~next_455_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_405_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_438~0#1|) (<= 0 |ULTIMATE.start_main_~var_411_arg_0~0#1.base|) (<= |ULTIMATE.start_main_~var_450_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~i~3#1|) (<= |ULTIMATE.start_main_~var_18_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_444_arg_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_430_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_427_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_113_arg_0~0#1| 0) (<= |ULTIMATE.start_main_~var_432_arg_0~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_437_arg_0~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_218~0#1|) (<= 0 |ULTIMATE.start_main_~var_439_arg_2~0#1.offset|) (<= 0 |ULTIMATE.start_main_~i~5#1|) (<= |ULTIMATE.start_main_~var_213~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_424_arg_1~0#1|) (<= 255 |ULTIMATE.start_main_~var_414_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_408_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~i~4#1|) (<= 0 |ULTIMATE.start_main_~next_419_arg_1~0#1.offset|)) (and (<= 1 |ULTIMATE.start_main_~state_111~0#1|) (<= 1 |ULTIMATE.start_main_~var_113_arg_0~0#1|) (<= 1 |ULTIMATE.start_main_~var_142_arg_0~0#1|))) (<= |ULTIMATE.start_main_~var_21_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_82_arg_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_123_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_52~0#1| 1) (<= 65535 |ULTIMATE.start_main_~mask_SORT_3~0#1|) (<= 0 |ULTIMATE.start_main_~var_110~0#1|) (<= 0 |ULTIMATE.start_main_~var_100_arg_1~0#1|) (<= 1 |ULTIMATE.start_main_~msb_SORT_1~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_11~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_73~0#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~var_50_arg_0~0#1.base|) (<= 1 |ULTIMATE.start_main_~var_126_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_143_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_77_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_73~0#1| 1) (<= 32768 |ULTIMATE.start_main_~msb_SORT_3~0#1|) (<= 0 |ULTIMATE.start_main_~#state_44~0#1.offset|) (<= 3 |ULTIMATE.start_main_~mask_SORT_5~0#1|) (<= 255 |ULTIMATE.start_main_~var_410~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_15~0#1| 8) (<= |ULTIMATE.start_main_~var_132_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_113_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_109~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_77_arg_1~0#1|) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_main_~var_183~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_82_arg_1~0#1|) (<= 8 |ULTIMATE.start_main_~msb_SORT_15~0#1|) (<= 0 |ULTIMATE.start_main_~var_76~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_3~0#1| 65535) (<= |ULTIMATE.start_main_~var_101~0#1| 1) (<= |ULTIMATE.start_main_~var_183~0#1| 0) (<= 0 |ULTIMATE.start_main_~#state_14~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_90~0#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~var_58_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_53_arg_0~0#1| 1) (<= 2147483648 |ULTIMATE.start_main_~msb_SORT_229~0#1|) (<= 0 |ULTIMATE.start_main_~var_21_arg_0~0#1.offset|) (<= |ULTIMATE.start_main_~var_81~0#1| 1) (<= |ULTIMATE.start_main_~mask_SORT_1~0#1| 1) (<= |ULTIMATE.start_main_~var_102_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~mask_SORT_12~0#1| 7) (<= 0 |ULTIMATE.start_main_~#state_44~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_53_arg_0~0#1|) (<= 1 |ULTIMATE.start_main_~var_120_arg_0~0#1|) (<= (+ |ULTIMATE.start_main_~mask_SORT_229~0#1| 1) 0))' at error location [2022-11-20 21:21:25,361 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 21:21:25,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 21:21:25,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 4] total 12 [2022-11-20 21:21:25,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949789383] [2022-11-20 21:21:25,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 21:21:25,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 21:21:25,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:21:25,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 21:21:25,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=960, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 21:21:25,363 INFO L87 Difference]: Start difference. First operand 49 states and 64 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 21:21:28,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:21:28,602 INFO L93 Difference]: Finished difference Result 95 states and 128 transitions. [2022-11-20 21:21:28,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 21:21:28,605 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 66 [2022-11-20 21:21:28,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:21:28,606 INFO L225 Difference]: With dead ends: 95 [2022-11-20 21:21:28,606 INFO L226 Difference]: Without dead ends: 53 [2022-11-20 21:21:28,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 171 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 68.7s TimeCoverageRelationStatistics Valid=168, Invalid=1022, Unknown=0, NotChecked=0, Total=1190 [2022-11-20 21:21:28,608 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-20 21:21:28,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-20 21:21:28,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-20 21:21:28,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-20 21:21:28,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 41 states have (on average 1.170731707317073) internal successors, (48), 41 states have internal predecessors, (48), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 21:21:28,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2022-11-20 21:21:28,618 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 66 [2022-11-20 21:21:28,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:21:28,618 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2022-11-20 21:21:28,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 21:21:28,619 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2022-11-20 21:21:28,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-20 21:21:28,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:21:28,620 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:21:28,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 21:21:28,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 21:21:28,827 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:21:28,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:21:28,828 INFO L85 PathProgramCache]: Analyzing trace with hash -452327161, now seen corresponding path program 3 times [2022-11-20 21:21:28,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:21:28,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866560407] [2022-11-20 21:21:28,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:21:28,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:21:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:21:29,945 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-11-20 21:21:29,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:21:29,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866560407] [2022-11-20 21:21:29,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866560407] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:21:29,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407999271] [2022-11-20 21:21:29,946 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 21:21:29,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:21:29,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:21:29,947 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:21:29,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 21:21:30,876 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 21:21:30,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 21:21:30,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 2145 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 21:21:30,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:21:30,971 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-11-20 21:21:30,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:21:31,099 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-20 21:21:31,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407999271] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 21:21:31,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1826854922] [2022-11-20 21:21:31,102 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-20 21:21:31,102 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 21:21:31,103 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 21:21:31,103 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 21:21:31,103 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 21:21:31,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-20 21:21:31,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:21:31,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2022-11-20 21:21:31,285 INFO L321 Elim1Store]: treesize reduction 41, result has 26.8 percent of original size [2022-11-20 21:21:31,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 316 treesize of output 323 [2022-11-20 21:21:31,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:21:31,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:21:31,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:21:31,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2022-11-20 21:21:31,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:21:31,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:21:34,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:21:34,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:21:34,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:34,455 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:21:34,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:21:35,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:21:35,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:21:35,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:35,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:35,093 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:21:35,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:21:35,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:35,431 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:21:35,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:21:36,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:21:36,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:21:36,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:21:37,390 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:37,416 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:21:37,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:21:38,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:21:38,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:21:38,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:38,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:38,445 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:21:38,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:21:39,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:39,128 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:21:39,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:21:39,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:21:40,260 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:40,288 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:21:40,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:21:41,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:21:41,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:21:41,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:21:41,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:41,656 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:41,686 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:21:41,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:21:42,422 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:42,450 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:21:42,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:21:43,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:43,033 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:21:43,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:21:44,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:21:44,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:21:44,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:21:44,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:44,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:44,440 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:21:44,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 106 [2022-11-20 21:21:45,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:45,179 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:21:45,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:21:45,796 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-20 21:21:45,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-20 21:21:55,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:21:55,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:21:56,251 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:56,281 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:21:56,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:21:57,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:57,131 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:21:57,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:21:58,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:21:58,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:21:58,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:21:59,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:21:59,164 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:21:59,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:22:00,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:22:00,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:22:00,270 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:00,271 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:00,300 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:22:00,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:22:00,846 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:00,873 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:22:00,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:22:01,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:22:01,967 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:01,995 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:22:01,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:22:03,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:22:03,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:22:03,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:22:03,380 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:03,381 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:03,411 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:22:03,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:22:04,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:04,090 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:22:04,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:22:04,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:04,849 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-20 21:22:04,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-20 21:22:06,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:06,089 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:06,159 INFO L321 Elim1Store]: treesize reduction 104, result has 29.7 percent of original size [2022-11-20 21:22:06,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 103 [2022-11-20 21:22:06,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:06,949 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:22:06,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:22:07,487 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-20 21:22:07,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-20 21:22:17,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:22:17,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:22:18,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:18,467 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:22:18,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:22:18,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:18,820 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:22:18,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:22:19,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:22:19,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:22:20,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:22:20,750 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:20,776 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:22:20,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:22:21,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:22:21,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:22:21,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:21,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:21,865 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:22:21,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:22:22,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:22,445 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:22:22,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:22:23,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:22:23,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:23,725 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:22:23,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:22:24,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:22:24,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:22:24,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:22:24,890 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:24,891 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:24,924 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:22:24,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:22:25,650 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:25,678 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:22:25,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:22:26,274 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:26,302 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-20 21:22:26,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-20 21:22:27,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:27,663 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:27,738 INFO L321 Elim1Store]: treesize reduction 94, result has 36.5 percent of original size [2022-11-20 21:22:27,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 113 [2022-11-20 21:22:28,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:22:28,549 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:22:28,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:22:29,108 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-20 21:22:29,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-20 21:22:49,304 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 14 for LOIs [2022-11-20 21:22:49,306 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 21:23:04,278 WARN L233 SmtUtils]: Spent 11.84s on a formula simplification. DAG size of input: 640 DAG size of output: 465 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 21:23:29,436 WARN L233 SmtUtils]: Spent 24.67s on a formula simplification. DAG size of input: 556 DAG size of output: 524 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 21:23:49,191 WARN L233 SmtUtils]: Spent 9.54s on a formula simplification. DAG size of input: 437 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 21:24:03,316 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4873#(and (<= 0 |ULTIMATE.start_main_~var_99~0#1|) (<= 0 |ULTIMATE.start_main_~var_142~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_40~0#1| 127) (<= 2 |ULTIMATE.start_main_~msb_SORT_5~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_36~0#1| 31) (<= |ULTIMATE.start_main_~msb_SORT_5~0#1| 2) (<= 0 |ULTIMATE.start_main_~var_23~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_3~0#1| 32768) (<= |ULTIMATE.start_main_~var_120_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_117_arg_0~0#1|) (<= 0 |#NULL.base|) (<= 31 |ULTIMATE.start_main_~mask_SORT_36~0#1|) (<= 0 |ULTIMATE.start_main_~var_101~0#1|) (<= 0 |ULTIMATE.start_main_~var_57~0#1|) (<= 0 |ULTIMATE.start_main_~var_52~0#1|) (<= |ULTIMATE.start_main_~var_50_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~msb_SORT_11~0#1| 128) (<= |ULTIMATE.start_main_~var_99~0#1| 0) (<= |ULTIMATE.start_main_~var_90~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_144_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~i~1#1|) (<= 1 |ULTIMATE.start_main_~var_132_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_21_arg_0~0#1.base|) (<= |ULTIMATE.start_main_~var_91_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_110~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_91_arg_1~0#1|) (<= |ULTIMATE.start_main_~#state_14~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_142_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_82_arg_0~0#1| 1) (<= 16 |ULTIMATE.start_main_~msb_SORT_36~0#1|) (<= 0 (+ |ULTIMATE.start_main_~mask_SORT_229~0#1| 1)) (<= |ULTIMATE.start_main_~var_106~0#1| 1) (<= 128 |ULTIMATE.start_main_~msb_SORT_11~0#1|) (<= |ULTIMATE.start_main_~var_57~0#1| 1) (<= |ULTIMATE.start_main_~var_76~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_77_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_113_arg_0~0#1| 1) (<= 1 |ULTIMATE.start_main_~var_109~0#1|) (<= |ULTIMATE.start_main_~var_126_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_144_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_78~0#1| 1) (<= 4 |ULTIMATE.start_main_~msb_SORT_12~0#1|) (<= |ULTIMATE.start_main_~init_112_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_123_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_102_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_30_arg_1~0#1|) (<= |ULTIMATE.start_main_~#state_44~0#1.offset| 0) (<= 127 |ULTIMATE.start_main_~mask_SORT_40~0#1|) (<= |ULTIMATE.start_main_~var_58_arg_1~0#1| 1) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= |ULTIMATE.start_main_~var_142~0#1| 1) (<= |ULTIMATE.start_main_~var_29~0#1| 1) (<= 32 |ULTIMATE.start_main_~msb_SORT_38~0#1|) (<= 0 |ULTIMATE.start_main_~#state_14~0#1.base|) (<= 64 |ULTIMATE.start_main_~msb_SORT_40~0#1|) (<= 8 |ULTIMATE.start_main_~var_27~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_12~0#1| 4) (<= |ULTIMATE.start_main_~var_117_arg_0~0#1| 1) (<= 1 |ULTIMATE.start_main_~var_113_arg_2~0#1|) (<= 1 |ULTIMATE.start_main_~mask_SORT_1~0#1|) (<= 15 |ULTIMATE.start_main_~mask_SORT_15~0#1|) (<= 0 |ULTIMATE.start_main_~var_81~0#1|) (<= |ULTIMATE.start_main_~var_77_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_230~0#1| 2) (<= |ULTIMATE.start_main_~msb_SORT_40~0#1| 64) (<= 0 |ULTIMATE.start_main_~var_82_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_107_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~msb_SORT_229~0#1| 2147483648) (<= |ULTIMATE.start_main_~var_27~0#1| 8) (<= 0 |ULTIMATE.start_main_~var_29~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_5~0#1| 3) (<= |ULTIMATE.start_main_~mask_SORT_15~0#1| 15) (<= |ULTIMATE.start_main_~var_100_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~state_111~0#1| 1) (<= 1 |ULTIMATE.start_main_~var_143_arg_0~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_38~0#1| 63) (<= |ULTIMATE.start_main_~var_113_arg_2~0#1| 1) (<= |ULTIMATE.start_main_~msb_SORT_38~0#1| 32) (<= |ULTIMATE.start_main_~var_410~0#1| 255) (<= |ULTIMATE.start_main_~var_24_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_24_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~var_30_arg_1~0#1| 1) (<= 63 |ULTIMATE.start_main_~mask_SORT_38~0#1|) (<= 7 |ULTIMATE.start_main_~mask_SORT_12~0#1|) (<= |ULTIMATE.start_main_~var_139_arg_0~0#1| 1) (<= 2 |ULTIMATE.start_main_~var_230~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_36~0#1| 16) (<= 255 |ULTIMATE.start_main_~mask_SORT_11~0#1|) (<= 1 |ULTIMATE.start_main_~init_112_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_78~0#1|) (<= 1 |ULTIMATE.start_main_~var_139_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_23~0#1| 1) (<= |ULTIMATE.start_main_~var_113_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_50_arg_0~0#1.offset|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~var_107_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_106~0#1|) (or (and (<= 0 |ULTIMATE.start_main_~var_209_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_442_arg_1~0#1| 0) (<= 1 |ULTIMATE.start_main_~var_444_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_214_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_152_arg_0~0#1| 0) (<= 0 |ULTIMATE.start_main_~next_440_arg_1~0#1.base|) (<= |ULTIMATE.start_main_~var_418~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_437_arg_0~0#1.base|) (<= |ULTIMATE.start_main_~var_439_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_47_arg_0~0#1.offset|) (<= |ULTIMATE.start_main_~var_209_arg_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_142_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~next_455_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_142_arg_0~0#1| 0) (<= |ULTIMATE.start_main_~var_439_arg_2~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_432_arg_0~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_423_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_2~0#1.base|) (<= |ULTIMATE.start_main_~next_419_arg_1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_453_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_424_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_432_arg_0~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_18_arg_0~0#1.offset|) (<= |ULTIMATE.start_main_~var_416_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_438~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_184_arg_1~0#1|) (<= |ULTIMATE.start_main_~state_111~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_411_arg_0~0#1.offset|) (<= |ULTIMATE.start_main_~var_412_arg_0~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_439_arg_0~0#1|) (<= 255 |ULTIMATE.start_main_~var_412_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_184_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_430_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_208~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_416_arg_0~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_416_arg_0~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_208~0#1|) (<= |ULTIMATE.start_main_~var_423_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_201_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_435_arg_1~0#1| 255) (<= |ULTIMATE.start_main_~var_445_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_438_arg_0~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_439_arg_2~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_408_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_1~0#1.offset|) (<= |ULTIMATE.start_main_~var_418_arg_0~0#1| 1) (<= 255 |ULTIMATE.start_main_~var_417_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_418~0#1.offset|) (<= 0 |ULTIMATE.start_main_~i~2#1|) (<= 0 |ULTIMATE.start_main_~var_405_arg_1~0#1|) (<= 255 |ULTIMATE.start_main_~var_438_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_418_arg_2~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_421_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_417~0#1| 1) (<= |ULTIMATE.start_main_~var_218~0#1| 1) (<= |ULTIMATE.start_main_~var_411_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_418_arg_1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_447_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_439~0#1.offset|) (<= |ULTIMATE.start_main_~var_439_arg_1~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_201_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~next_419_arg_1~0#1.base|) (<= |ULTIMATE.start_main_~var_433_arg_0~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_450_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_1~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_442_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_427_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_213~0#1|) (<= |ULTIMATE.start_main_~var_414_arg_1~0#1| 255) (<= 0 |ULTIMATE.start_main_~state_111~0#1|) (<= 0 |ULTIMATE.start_main_~var_439_arg_1~0#1.base|) (<= 0 |ULTIMATE.start_main_~next_440_arg_1~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_445_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_0~0#1|) (<= 255 |ULTIMATE.start_main_~var_435_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_421_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_447_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_47_arg_0~0#1.base|) (<= 255 |ULTIMATE.start_main_~var_433_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_439_arg_1~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_214_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_113_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_437_arg_0~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_18_arg_0~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_417~0#1|) (<= 0 |ULTIMATE.start_main_~var_152_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_2~0#1.offset|) (<= |ULTIMATE.start_main_~var_47_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~next_440_arg_1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_439~0#1.base|) (<= |ULTIMATE.start_main_~var_453_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_439~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_417_arg_0~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_418~0#1.base|) (<= |ULTIMATE.start_main_~next_455_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_405_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_438~0#1|) (<= 0 |ULTIMATE.start_main_~var_411_arg_0~0#1.base|) (<= |ULTIMATE.start_main_~var_450_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~i~3#1|) (<= |ULTIMATE.start_main_~var_18_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_444_arg_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_430_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_427_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_113_arg_0~0#1| 0) (<= |ULTIMATE.start_main_~var_432_arg_0~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_437_arg_0~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_218~0#1|) (<= 0 |ULTIMATE.start_main_~var_439_arg_2~0#1.offset|) (<= 0 |ULTIMATE.start_main_~i~5#1|) (<= |ULTIMATE.start_main_~var_213~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_424_arg_1~0#1|) (<= 255 |ULTIMATE.start_main_~var_414_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_408_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~i~4#1|) (<= 0 |ULTIMATE.start_main_~next_419_arg_1~0#1.offset|)) (and (<= 1 |ULTIMATE.start_main_~state_111~0#1|) (<= 1 |ULTIMATE.start_main_~var_113_arg_0~0#1|) (<= 1 |ULTIMATE.start_main_~var_142_arg_0~0#1|))) (<= |ULTIMATE.start_main_~var_21_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_82_arg_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_123_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_52~0#1| 1) (<= 65535 |ULTIMATE.start_main_~mask_SORT_3~0#1|) (<= 0 |ULTIMATE.start_main_~var_110~0#1|) (<= 0 |ULTIMATE.start_main_~var_100_arg_1~0#1|) (<= 1 |ULTIMATE.start_main_~msb_SORT_1~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_11~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_73~0#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~var_50_arg_0~0#1.base|) (<= 1 |ULTIMATE.start_main_~var_126_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_143_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_77_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_73~0#1| 1) (<= 32768 |ULTIMATE.start_main_~msb_SORT_3~0#1|) (<= 0 |ULTIMATE.start_main_~#state_44~0#1.offset|) (<= 3 |ULTIMATE.start_main_~mask_SORT_5~0#1|) (<= 255 |ULTIMATE.start_main_~var_410~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_15~0#1| 8) (<= |ULTIMATE.start_main_~var_132_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_113_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_109~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_77_arg_1~0#1|) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_main_~var_183~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_82_arg_1~0#1|) (<= 8 |ULTIMATE.start_main_~msb_SORT_15~0#1|) (<= 0 |ULTIMATE.start_main_~var_76~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_3~0#1| 65535) (<= |ULTIMATE.start_main_~var_101~0#1| 1) (<= |ULTIMATE.start_main_~var_183~0#1| 0) (<= 0 |ULTIMATE.start_main_~#state_14~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_90~0#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~var_58_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_53_arg_0~0#1| 1) (<= 2147483648 |ULTIMATE.start_main_~msb_SORT_229~0#1|) (<= 0 |ULTIMATE.start_main_~var_21_arg_0~0#1.offset|) (<= |ULTIMATE.start_main_~var_81~0#1| 1) (<= |ULTIMATE.start_main_~mask_SORT_1~0#1| 1) (<= |ULTIMATE.start_main_~var_102_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~mask_SORT_12~0#1| 7) (<= 0 |ULTIMATE.start_main_~#state_44~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_53_arg_0~0#1|) (<= 1 |ULTIMATE.start_main_~var_120_arg_0~0#1|) (<= (+ |ULTIMATE.start_main_~mask_SORT_229~0#1| 1) 0))' at error location [2022-11-20 21:24:03,316 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 21:24:03,316 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 21:24:03,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 7] total 19 [2022-11-20 21:24:03,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278329350] [2022-11-20 21:24:03,317 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 21:24:03,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 21:24:03,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:24:03,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 21:24:03,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1443, Unknown=0, NotChecked=0, Total=1640 [2022-11-20 21:24:03,319 INFO L87 Difference]: Start difference. First operand 53 states and 68 transitions. Second operand has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 21:24:07,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:24:07,653 INFO L93 Difference]: Finished difference Result 103 states and 137 transitions. [2022-11-20 21:24:07,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 21:24:07,654 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 70 [2022-11-20 21:24:07,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:24:07,655 INFO L225 Difference]: With dead ends: 103 [2022-11-20 21:24:07,655 INFO L226 Difference]: Without dead ends: 58 [2022-11-20 21:24:07,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 177 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 74.3s TimeCoverageRelationStatistics Valid=217, Invalid=1589, Unknown=0, NotChecked=0, Total=1806 [2022-11-20 21:24:07,656 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-20 21:24:07,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 280 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-20 21:24:07,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-20 21:24:07,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-20 21:24:07,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 46 states have internal predecessors, (53), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 21:24:07,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 73 transitions. [2022-11-20 21:24:07,676 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 73 transitions. Word has length 70 [2022-11-20 21:24:07,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:24:07,677 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 73 transitions. [2022-11-20 21:24:07,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 21:24:07,677 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 73 transitions. [2022-11-20 21:24:07,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 21:24:07,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:24:07,679 INFO L195 NwaCegarLoop]: trace histogram [10, 8, 7, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:24:07,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-20 21:24:07,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:24:07,892 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:24:07,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:24:07,893 INFO L85 PathProgramCache]: Analyzing trace with hash 575030105, now seen corresponding path program 4 times [2022-11-20 21:24:07,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:24:07,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198021984] [2022-11-20 21:24:07,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:24:07,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:24:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:24:09,017 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-11-20 21:24:09,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:24:09,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198021984] [2022-11-20 21:24:09,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198021984] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:24:09,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149299452] [2022-11-20 21:24:09,017 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-20 21:24:09,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:24:09,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:24:09,018 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:24:09,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-20 21:24:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:24:09,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 2180 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-20 21:24:09,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:24:09,991 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-11-20 21:24:09,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:24:10,379 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-20 21:24:10,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149299452] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 21:24:10,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [85806523] [2022-11-20 21:24:10,382 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-20 21:24:10,382 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 21:24:10,383 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 21:24:10,383 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 21:24:10,383 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 21:24:10,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:24:10,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-20 21:24:10,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2022-11-20 21:24:10,556 INFO L321 Elim1Store]: treesize reduction 41, result has 26.8 percent of original size [2022-11-20 21:24:10,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 316 treesize of output 323 [2022-11-20 21:24:10,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:24:10,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:24:10,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:24:10,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:24:10,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:24:11,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:24:13,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:24:13,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:24:13,623 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:13,645 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:24:13,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:24:14,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:14,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:14,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:14,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:14,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:14,258 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:24:14,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:24:14,561 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:14,582 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:24:14,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:24:15,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:24:15,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:24:15,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:24:16,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:16,462 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:24:16,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:24:17,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:17,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:17,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:17,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:17,544 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:24:17,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:24:18,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:18,188 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:24:18,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:24:18,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:24:19,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:19,401 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:24:19,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:24:20,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:20,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:20,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:20,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:20,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:20,642 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:24:20,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:24:21,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:21,347 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:24:21,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:24:22,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:22,079 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:24:22,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:24:23,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:23,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:23,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:23,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:23,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:23,443 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:24:23,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 106 [2022-11-20 21:24:24,046 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:24,074 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:24:24,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:24:24,648 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-20 21:24:24,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-20 21:24:34,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:24:34,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:24:35,055 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:35,087 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:24:35,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:24:35,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:35,910 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:24:35,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:24:36,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:24:36,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:24:37,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:24:37,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:37,845 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:24:37,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:24:38,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:38,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:38,882 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:38,882 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:38,909 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:24:38,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:24:39,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:39,557 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:24:39,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:24:40,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:24:40,598 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:40,626 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:24:40,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:24:41,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:41,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:41,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:41,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:41,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:42,021 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:24:42,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:24:42,686 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:42,713 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:24:42,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:24:43,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:43,314 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-20 21:24:43,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-20 21:24:44,723 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:44,724 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:44,790 INFO L321 Elim1Store]: treesize reduction 104, result has 29.7 percent of original size [2022-11-20 21:24:44,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 103 [2022-11-20 21:24:45,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:45,474 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:24:45,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:24:46,032 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-20 21:24:46,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-20 21:24:55,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:24:56,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:24:57,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:57,187 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:24:57,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:24:58,197 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:24:58,219 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:24:58,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:24:59,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:24:59,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:24:59,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:25:00,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:25:00,182 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:25:00,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:25:01,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:25:01,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:25:01,240 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:25:01,241 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:25:01,268 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:25:01,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:25:01,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:25:01,917 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:25:01,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:25:02,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:25:03,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:25:03,190 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:25:03,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:25:04,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:25:04,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:25:04,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:25:04,656 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:25:04,656 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:25:04,687 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:25:04,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:25:05,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:25:05,529 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:25:05,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:25:06,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:25:06,291 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:25:06,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:25:07,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:25:07,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:25:07,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:25:07,687 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:25:07,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:25:07,718 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:25:07,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 106 [2022-11-20 21:25:08,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:25:08,486 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:25:08,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:25:08,960 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-20 21:25:08,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-20 21:25:31,770 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 14 for LOIs [2022-11-20 21:25:31,771 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 21:25:47,014 WARN L233 SmtUtils]: Spent 11.81s on a formula simplification. DAG size of input: 640 DAG size of output: 465 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 21:26:06,889 WARN L233 SmtUtils]: Spent 19.20s on a formula simplification. DAG size of input: 556 DAG size of output: 524 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 21:26:27,191 WARN L233 SmtUtils]: Spent 9.50s on a formula simplification. DAG size of input: 437 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 21:26:41,845 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5642#(and (<= 0 |ULTIMATE.start_main_~var_99~0#1|) (<= 0 |ULTIMATE.start_main_~var_142~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_40~0#1| 127) (<= 2 |ULTIMATE.start_main_~msb_SORT_5~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_36~0#1| 31) (<= |ULTIMATE.start_main_~msb_SORT_5~0#1| 2) (<= 0 |ULTIMATE.start_main_~var_23~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_3~0#1| 32768) (<= |ULTIMATE.start_main_~var_120_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_117_arg_0~0#1|) (<= 0 |#NULL.base|) (<= 31 |ULTIMATE.start_main_~mask_SORT_36~0#1|) (<= 0 |ULTIMATE.start_main_~var_101~0#1|) (<= 0 |ULTIMATE.start_main_~var_57~0#1|) (<= 0 |ULTIMATE.start_main_~var_52~0#1|) (<= |ULTIMATE.start_main_~var_50_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~msb_SORT_11~0#1| 128) (<= |ULTIMATE.start_main_~var_99~0#1| 0) (<= |ULTIMATE.start_main_~var_90~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_144_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~i~1#1|) (<= 1 |ULTIMATE.start_main_~var_132_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_21_arg_0~0#1.base|) (<= |ULTIMATE.start_main_~var_91_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_110~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_91_arg_1~0#1|) (<= |ULTIMATE.start_main_~#state_14~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_142_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_82_arg_0~0#1| 1) (<= 16 |ULTIMATE.start_main_~msb_SORT_36~0#1|) (<= 0 (+ |ULTIMATE.start_main_~mask_SORT_229~0#1| 1)) (<= |ULTIMATE.start_main_~var_106~0#1| 1) (<= 128 |ULTIMATE.start_main_~msb_SORT_11~0#1|) (<= |ULTIMATE.start_main_~var_57~0#1| 1) (<= |ULTIMATE.start_main_~var_76~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_77_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_113_arg_0~0#1| 1) (<= 1 |ULTIMATE.start_main_~var_109~0#1|) (<= |ULTIMATE.start_main_~var_126_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_144_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_78~0#1| 1) (<= 4 |ULTIMATE.start_main_~msb_SORT_12~0#1|) (<= |ULTIMATE.start_main_~init_112_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_123_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_102_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_30_arg_1~0#1|) (<= |ULTIMATE.start_main_~#state_44~0#1.offset| 0) (<= 127 |ULTIMATE.start_main_~mask_SORT_40~0#1|) (<= |ULTIMATE.start_main_~var_58_arg_1~0#1| 1) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= |ULTIMATE.start_main_~var_142~0#1| 1) (<= |ULTIMATE.start_main_~var_29~0#1| 1) (<= 32 |ULTIMATE.start_main_~msb_SORT_38~0#1|) (<= 0 |ULTIMATE.start_main_~#state_14~0#1.base|) (<= 64 |ULTIMATE.start_main_~msb_SORT_40~0#1|) (<= 8 |ULTIMATE.start_main_~var_27~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_12~0#1| 4) (<= |ULTIMATE.start_main_~var_117_arg_0~0#1| 1) (<= 1 |ULTIMATE.start_main_~var_113_arg_2~0#1|) (<= 1 |ULTIMATE.start_main_~mask_SORT_1~0#1|) (<= 15 |ULTIMATE.start_main_~mask_SORT_15~0#1|) (<= 0 |ULTIMATE.start_main_~var_81~0#1|) (<= |ULTIMATE.start_main_~var_77_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_230~0#1| 2) (<= |ULTIMATE.start_main_~msb_SORT_40~0#1| 64) (<= 0 |ULTIMATE.start_main_~var_82_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_107_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~msb_SORT_229~0#1| 2147483648) (<= |ULTIMATE.start_main_~var_27~0#1| 8) (<= 0 |ULTIMATE.start_main_~var_29~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_5~0#1| 3) (<= |ULTIMATE.start_main_~mask_SORT_15~0#1| 15) (<= |ULTIMATE.start_main_~var_100_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~state_111~0#1| 1) (<= 1 |ULTIMATE.start_main_~var_143_arg_0~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_38~0#1| 63) (<= |ULTIMATE.start_main_~var_113_arg_2~0#1| 1) (<= |ULTIMATE.start_main_~msb_SORT_38~0#1| 32) (<= |ULTIMATE.start_main_~var_410~0#1| 255) (<= |ULTIMATE.start_main_~var_24_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_24_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~var_30_arg_1~0#1| 1) (<= 63 |ULTIMATE.start_main_~mask_SORT_38~0#1|) (<= 7 |ULTIMATE.start_main_~mask_SORT_12~0#1|) (<= |ULTIMATE.start_main_~var_139_arg_0~0#1| 1) (<= 2 |ULTIMATE.start_main_~var_230~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_36~0#1| 16) (<= 255 |ULTIMATE.start_main_~mask_SORT_11~0#1|) (<= 1 |ULTIMATE.start_main_~init_112_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_78~0#1|) (<= 1 |ULTIMATE.start_main_~var_139_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_23~0#1| 1) (<= |ULTIMATE.start_main_~var_113_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_50_arg_0~0#1.offset|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~var_107_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_106~0#1|) (or (and (<= 0 |ULTIMATE.start_main_~var_209_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_442_arg_1~0#1| 0) (<= 1 |ULTIMATE.start_main_~var_444_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_214_arg_1~0#1| 1) (<= |ULTIMATE.start_main_~var_152_arg_0~0#1| 0) (<= 0 |ULTIMATE.start_main_~next_440_arg_1~0#1.base|) (<= |ULTIMATE.start_main_~var_418~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_437_arg_0~0#1.base|) (<= |ULTIMATE.start_main_~var_439_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_47_arg_0~0#1.offset|) (<= |ULTIMATE.start_main_~var_209_arg_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_142_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~next_455_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_142_arg_0~0#1| 0) (<= |ULTIMATE.start_main_~var_439_arg_2~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_432_arg_0~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_423_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_2~0#1.base|) (<= |ULTIMATE.start_main_~next_419_arg_1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_453_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_424_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_432_arg_0~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_18_arg_0~0#1.offset|) (<= |ULTIMATE.start_main_~var_416_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_438~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_184_arg_1~0#1|) (<= |ULTIMATE.start_main_~state_111~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_411_arg_0~0#1.offset|) (<= |ULTIMATE.start_main_~var_412_arg_0~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_439_arg_0~0#1|) (<= 255 |ULTIMATE.start_main_~var_412_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_184_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_430_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_208~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_416_arg_0~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_416_arg_0~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_208~0#1|) (<= |ULTIMATE.start_main_~var_423_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_201_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_435_arg_1~0#1| 255) (<= |ULTIMATE.start_main_~var_445_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_438_arg_0~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_439_arg_2~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_408_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_1~0#1.offset|) (<= |ULTIMATE.start_main_~var_418_arg_0~0#1| 1) (<= 255 |ULTIMATE.start_main_~var_417_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_418~0#1.offset|) (<= 0 |ULTIMATE.start_main_~i~2#1|) (<= 0 |ULTIMATE.start_main_~var_405_arg_1~0#1|) (<= 255 |ULTIMATE.start_main_~var_438_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_418_arg_2~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_421_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_417~0#1| 1) (<= |ULTIMATE.start_main_~var_218~0#1| 1) (<= |ULTIMATE.start_main_~var_411_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_418_arg_1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_447_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_439~0#1.offset|) (<= |ULTIMATE.start_main_~var_439_arg_1~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_201_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~next_419_arg_1~0#1.base|) (<= |ULTIMATE.start_main_~var_433_arg_0~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_450_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_1~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_442_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_427_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_213~0#1|) (<= |ULTIMATE.start_main_~var_414_arg_1~0#1| 255) (<= 0 |ULTIMATE.start_main_~state_111~0#1|) (<= 0 |ULTIMATE.start_main_~var_439_arg_1~0#1.base|) (<= 0 |ULTIMATE.start_main_~next_440_arg_1~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_445_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_0~0#1|) (<= 255 |ULTIMATE.start_main_~var_435_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_421_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_447_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_47_arg_0~0#1.base|) (<= 255 |ULTIMATE.start_main_~var_433_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_439_arg_1~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_214_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_113_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_437_arg_0~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_18_arg_0~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_417~0#1|) (<= 0 |ULTIMATE.start_main_~var_152_arg_0~0#1|) (<= 0 |ULTIMATE.start_main_~var_418_arg_2~0#1.offset|) (<= |ULTIMATE.start_main_~var_47_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~next_440_arg_1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_439~0#1.base|) (<= |ULTIMATE.start_main_~var_453_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_439~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_417_arg_0~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_418~0#1.base|) (<= |ULTIMATE.start_main_~next_455_arg_1~0#1| 0) (<= |ULTIMATE.start_main_~var_405_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~var_438~0#1|) (<= 0 |ULTIMATE.start_main_~var_411_arg_0~0#1.base|) (<= |ULTIMATE.start_main_~var_450_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~i~3#1|) (<= |ULTIMATE.start_main_~var_18_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_444_arg_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_430_arg_1~0#1|) (<= 0 |ULTIMATE.start_main_~var_427_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_113_arg_0~0#1| 0) (<= |ULTIMATE.start_main_~var_432_arg_0~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~var_437_arg_0~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_218~0#1|) (<= 0 |ULTIMATE.start_main_~var_439_arg_2~0#1.offset|) (<= 0 |ULTIMATE.start_main_~i~5#1|) (<= |ULTIMATE.start_main_~var_213~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_424_arg_1~0#1|) (<= 255 |ULTIMATE.start_main_~var_414_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_408_arg_1~0#1| 0) (<= 0 |ULTIMATE.start_main_~i~4#1|) (<= 0 |ULTIMATE.start_main_~next_419_arg_1~0#1.offset|)) (and (<= 1 |ULTIMATE.start_main_~state_111~0#1|) (<= 1 |ULTIMATE.start_main_~var_113_arg_0~0#1|) (<= 1 |ULTIMATE.start_main_~var_142_arg_0~0#1|))) (<= |ULTIMATE.start_main_~var_21_arg_0~0#1.offset| 0) (<= |ULTIMATE.start_main_~var_82_arg_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_123_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_52~0#1| 1) (<= 65535 |ULTIMATE.start_main_~mask_SORT_3~0#1|) (<= 0 |ULTIMATE.start_main_~var_110~0#1|) (<= 0 |ULTIMATE.start_main_~var_100_arg_1~0#1|) (<= 1 |ULTIMATE.start_main_~msb_SORT_1~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_11~0#1| 255) (<= 0 |ULTIMATE.start_main_~var_73~0#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~var_50_arg_0~0#1.base|) (<= 1 |ULTIMATE.start_main_~var_126_arg_0~0#1|) (<= |ULTIMATE.start_main_~var_143_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_77_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~var_73~0#1| 1) (<= 32768 |ULTIMATE.start_main_~msb_SORT_3~0#1|) (<= 0 |ULTIMATE.start_main_~#state_44~0#1.offset|) (<= 3 |ULTIMATE.start_main_~mask_SORT_5~0#1|) (<= 255 |ULTIMATE.start_main_~var_410~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_15~0#1| 8) (<= |ULTIMATE.start_main_~var_132_arg_0~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_113_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_109~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_77_arg_1~0#1|) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_main_~var_183~0#1|) (<= |ULTIMATE.start_main_~msb_SORT_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~var_82_arg_1~0#1|) (<= 8 |ULTIMATE.start_main_~msb_SORT_15~0#1|) (<= 0 |ULTIMATE.start_main_~var_76~0#1|) (<= |ULTIMATE.start_main_~mask_SORT_3~0#1| 65535) (<= |ULTIMATE.start_main_~var_101~0#1| 1) (<= |ULTIMATE.start_main_~var_183~0#1| 0) (<= 0 |ULTIMATE.start_main_~#state_14~0#1.offset|) (<= 0 |ULTIMATE.start_main_~var_90~0#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~var_58_arg_1~0#1|) (<= |ULTIMATE.start_main_~var_53_arg_0~0#1| 1) (<= 2147483648 |ULTIMATE.start_main_~msb_SORT_229~0#1|) (<= 0 |ULTIMATE.start_main_~var_21_arg_0~0#1.offset|) (<= |ULTIMATE.start_main_~var_81~0#1| 1) (<= |ULTIMATE.start_main_~mask_SORT_1~0#1| 1) (<= |ULTIMATE.start_main_~var_102_arg_0~0#1| 1) (<= |ULTIMATE.start_main_~mask_SORT_12~0#1| 7) (<= 0 |ULTIMATE.start_main_~#state_44~0#1.base|) (<= 0 |ULTIMATE.start_main_~var_53_arg_0~0#1|) (<= 1 |ULTIMATE.start_main_~var_120_arg_0~0#1|) (<= (+ |ULTIMATE.start_main_~mask_SORT_229~0#1| 1) 0))' at error location [2022-11-20 21:26:41,845 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 21:26:41,845 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 21:26:41,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 18] total 27 [2022-11-20 21:26:41,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939299767] [2022-11-20 21:26:41,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 21:26:41,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-20 21:26:41,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:26:41,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-20 21:26:41,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=2124, Unknown=0, NotChecked=0, Total=2352 [2022-11-20 21:26:41,848 INFO L87 Difference]: Start difference. First operand 58 states and 73 transitions. Second operand has 27 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 27 states have internal predecessors, (50), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 21:26:44,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:26:45,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:26:47,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:26:47,633 INFO L93 Difference]: Finished difference Result 108 states and 138 transitions. [2022-11-20 21:26:47,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 21:26:47,633 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 27 states have internal predecessors, (50), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 75 [2022-11-20 21:26:47,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:26:47,634 INFO L225 Difference]: With dead ends: 108 [2022-11-20 21:26:47,634 INFO L226 Difference]: Without dead ends: 59 [2022-11-20 21:26:47,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 71.1s TimeCoverageRelationStatistics Valid=298, Invalid=2782, Unknown=0, NotChecked=0, Total=3080 [2022-11-20 21:26:47,636 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 152 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:26:47,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 220 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-20 21:26:47,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-20 21:26:47,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-20 21:26:47,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.127659574468085) internal successors, (53), 47 states have internal predecessors, (53), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 21:26:47,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 73 transitions. [2022-11-20 21:26:47,647 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 73 transitions. Word has length 75 [2022-11-20 21:26:47,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:26:47,647 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 73 transitions. [2022-11-20 21:26:47,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 27 states have internal predecessors, (50), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 21:26:47,648 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2022-11-20 21:26:47,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-20 21:26:47,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:26:47,649 INFO L195 NwaCegarLoop]: trace histogram [10, 8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:26:47,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-20 21:26:47,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:26:47,855 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:26:47,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:26:47,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1600227513, now seen corresponding path program 5 times [2022-11-20 21:26:47,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:26:47,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855499548] [2022-11-20 21:26:47,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:26:47,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:26:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:26:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-20 21:26:48,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:26:48,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855499548] [2022-11-20 21:26:48,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855499548] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:26:48,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870903106] [2022-11-20 21:26:48,831 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 21:26:48,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:26:48,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:26:48,834 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:26:48,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43bbd585-4f17-4ede-a176-1de01ecfec03/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-20 21:27:08,019 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-20 21:27:08,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 21:27:08,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 1815 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 21:27:08,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:27:08,093 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 62 proven. 16 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-20 21:27:08,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:27:08,160 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-20 21:27:08,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870903106] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 21:27:08,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1569080457] [2022-11-20 21:27:08,166 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-20 21:27:08,166 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 21:27:08,166 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 21:27:08,166 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 21:27:08,167 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 21:27:08,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-20 21:27:08,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:27:08,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2022-11-20 21:27:08,371 INFO L321 Elim1Store]: treesize reduction 41, result has 26.8 percent of original size [2022-11-20 21:27:08,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 316 treesize of output 323 [2022-11-20 21:27:08,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:27:08,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:27:08,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:27:08,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:27:08,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:27:08,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-20 21:27:11,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:27:11,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:27:11,563 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:11,584 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:27:11,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:27:12,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:12,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:12,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:12,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:12,146 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:12,169 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:27:12,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:27:12,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:12,494 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:27:12,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:27:13,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:27:13,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:27:13,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:27:14,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:14,549 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:27:14,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:27:15,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:15,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:15,648 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:15,649 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:15,676 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:27:15,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:27:16,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:16,205 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:27:16,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:27:16,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:27:17,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:17,373 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:27:17,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:27:18,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:18,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:18,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:18,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:18,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:18,802 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:27:18,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:27:19,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:19,425 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:27:19,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:27:20,134 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:20,162 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:27:20,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:27:21,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:21,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:21,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:21,374 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:21,375 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:21,406 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:27:21,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 106 [2022-11-20 21:27:22,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:22,134 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:27:22,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:27:22,788 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-20 21:27:22,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-20 21:27:33,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:27:33,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:27:34,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:34,073 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:27:34,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:27:34,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:34,983 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:27:34,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:27:35,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 21:27:35,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 21:27:36,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:27:36,895 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:36,920 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:27:36,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:27:38,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:38,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:38,016 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:38,017 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:38,045 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:27:38,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:27:38,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:38,693 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:27:38,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:27:39,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 21:27:39,738 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:39,765 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:27:39,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:27:41,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:41,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:41,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:41,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:41,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:41,115 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:27:41,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 74 [2022-11-20 21:27:41,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:41,822 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:27:41,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:27:42,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:42,474 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:27:42,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:27:43,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:43,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:27:43,890 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:43,891 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:43,923 INFO L321 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2022-11-20 21:27:43,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 106 [2022-11-20 21:27:44,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:27:44,713 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-20 21:27:44,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-11-20 21:27:45,139 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-20 21:27:45,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11