./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/mods.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/mods.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f15d84a1f588b4a2fae1a1f53311fed1d9572550b31409f886696465cdc8f8ba --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:27:58,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:27:58,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:27:58,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:27:58,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:27:58,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:27:58,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:27:58,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:27:58,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:27:58,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:27:58,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:27:58,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:27:58,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:27:58,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:27:58,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:27:58,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:27:58,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:27:58,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:27:58,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:27:58,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:27:58,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:27:58,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:27:58,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:27:58,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:27:58,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:27:58,283 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:27:58,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:27:58,284 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:27:58,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:27:58,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:27:58,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:27:58,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:27:58,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:27:58,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:27:58,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:27:58,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:27:58,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:27:58,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:27:58,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:27:58,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:27:58,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:27:58,291 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 19:27:58,307 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:27:58,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:27:58,307 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:27:58,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:27:58,308 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:27:58,308 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:27:58,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:27:58,309 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:27:58,309 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:27:58,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:27:58,309 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 19:27:58,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:27:58,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 19:27:58,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:27:58,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:27:58,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:27:58,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:27:58,310 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 19:27:58,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:27:58,310 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:27:58,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:27:58,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:27:58,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:27:58,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:27:58,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:27:58,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:27:58,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:27:58,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:27:58,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:27:58,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 19:27:58,311 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 19:27:58,311 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 19:27:58,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:27:58,312 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:27:58,312 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_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f15d84a1f588b4a2fae1a1f53311fed1d9572550b31409f886696465cdc8f8ba [2021-12-06 19:27:58,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:27:58,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:27:58,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:27:58,504 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:27:58,504 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:27:58,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/array-fpi/mods.c [2021-12-06 19:27:58,555 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/data/ed70d03ea/ecc7623d432b4f278218fb5f0b4b6291/FLAG571021798 [2021-12-06 19:27:58,913 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:27:58,913 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/sv-benchmarks/c/array-fpi/mods.c [2021-12-06 19:27:58,919 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/data/ed70d03ea/ecc7623d432b4f278218fb5f0b4b6291/FLAG571021798 [2021-12-06 19:27:58,931 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/data/ed70d03ea/ecc7623d432b4f278218fb5f0b4b6291 [2021-12-06 19:27:58,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:27:58,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:27:58,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:27:58,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:27:58,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:27:58,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:27:58" (1/1) ... [2021-12-06 19:27:58,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b16619e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:58, skipping insertion in model container [2021-12-06 19:27:58,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:27:58" (1/1) ... [2021-12-06 19:27:58,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:27:58,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:27:59,077 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/sv-benchmarks/c/array-fpi/mods.c[587,600] [2021-12-06 19:27:59,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:27:59,098 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:27:59,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/sv-benchmarks/c/array-fpi/mods.c[587,600] [2021-12-06 19:27:59,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:27:59,125 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:27:59,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:59 WrapperNode [2021-12-06 19:27:59,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:27:59,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:27:59,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:27:59,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:27:59,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:59" (1/1) ... [2021-12-06 19:27:59,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:59" (1/1) ... [2021-12-06 19:27:59,154 INFO L137 Inliner]: procedures = 17, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 104 [2021-12-06 19:27:59,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:27:59,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:27:59,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:27:59,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:27:59,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:59" (1/1) ... [2021-12-06 19:27:59,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:59" (1/1) ... [2021-12-06 19:27:59,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:59" (1/1) ... [2021-12-06 19:27:59,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:59" (1/1) ... [2021-12-06 19:27:59,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:59" (1/1) ... [2021-12-06 19:27:59,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:59" (1/1) ... [2021-12-06 19:27:59,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:59" (1/1) ... [2021-12-06 19:27:59,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:27:59,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:27:59,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:27:59,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:27:59,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:59" (1/1) ... [2021-12-06 19:27:59,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:27:59,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:27:59,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:27:59,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:27:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:27:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:27:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 19:27:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 19:27:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 19:27:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:27:59,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:27:59,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 19:27:59,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 19:27:59,287 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:27:59,289 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:27:59,393 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:27:59,398 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:27:59,398 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-06 19:27:59,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:27:59 BoogieIcfgContainer [2021-12-06 19:27:59,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:27:59,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:27:59,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:27:59,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:27:59,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:27:58" (1/3) ... [2021-12-06 19:27:59,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2461ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:27:59, skipping insertion in model container [2021-12-06 19:27:59,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:59" (2/3) ... [2021-12-06 19:27:59,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2461ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:27:59, skipping insertion in model container [2021-12-06 19:27:59,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:27:59" (3/3) ... [2021-12-06 19:27:59,406 INFO L111 eAbstractionObserver]: Analyzing ICFG mods.c [2021-12-06 19:27:59,411 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:27:59,411 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 19:27:59,449 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:27:59,455 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 19:27:59,455 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 19:27:59,466 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:59,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-06 19:27:59,471 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:59,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:27:59,472 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:27:59,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:59,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1389277550, now seen corresponding path program 1 times [2021-12-06 19:27:59,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:59,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189594166] [2021-12-06 19:27:59,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:59,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:59,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:27:59,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:59,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189594166] [2021-12-06 19:27:59,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189594166] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:59,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:59,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:27:59,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866429670] [2021-12-06 19:27:59,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:59,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 19:27:59,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:59,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 19:27:59,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 19:27:59,629 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:59,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:59,641 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2021-12-06 19:27:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 19:27:59,643 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-06 19:27:59,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:59,648 INFO L225 Difference]: With dead ends: 50 [2021-12-06 19:27:59,649 INFO L226 Difference]: Without dead ends: 23 [2021-12-06 19:27:59,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 19:27:59,654 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:59,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:27:59,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-06 19:27:59,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-12-06 19:27:59,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:59,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-12-06 19:27:59,682 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16 [2021-12-06 19:27:59,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:59,683 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-12-06 19:27:59,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:59,683 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-12-06 19:27:59,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-06 19:27:59,684 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:59,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:27:59,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 19:27:59,684 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:27:59,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:59,685 INFO L85 PathProgramCache]: Analyzing trace with hash 796930410, now seen corresponding path program 1 times [2021-12-06 19:27:59,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:59,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707898170] [2021-12-06 19:27:59,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:59,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:59,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:27:59,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:59,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707898170] [2021-12-06 19:27:59,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707898170] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:59,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:59,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:27:59,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479452157] [2021-12-06 19:27:59,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:59,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:27:59,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:59,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:27:59,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:27:59,752 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:59,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:59,810 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2021-12-06 19:27:59,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:27:59,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-06 19:27:59,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:59,811 INFO L225 Difference]: With dead ends: 53 [2021-12-06 19:27:59,811 INFO L226 Difference]: Without dead ends: 37 [2021-12-06 19:27:59,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:27:59,814 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 41 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:59,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 17 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:27:59,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-12-06 19:27:59,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2021-12-06 19:27:59,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:59,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2021-12-06 19:27:59,822 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2021-12-06 19:27:59,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:59,822 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-12-06 19:27:59,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:59,822 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2021-12-06 19:27:59,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-06 19:27:59,823 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:59,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:27:59,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 19:27:59,824 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:27:59,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:59,825 INFO L85 PathProgramCache]: Analyzing trace with hash 495241442, now seen corresponding path program 1 times [2021-12-06 19:27:59,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:59,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99538561] [2021-12-06 19:27:59,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:59,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:59,862 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:27:59,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [796099317] [2021-12-06 19:27:59,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:59,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:27:59,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:27:59,865 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:27:59,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 19:27:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:59,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 41 conjunts are in the unsatisfiable core [2021-12-06 19:27:59,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:28:00,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-06 19:28:00,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7 [2021-12-06 19:28:00,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-12-06 19:28:00,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-12-06 19:28:00,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-12-06 19:28:00,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 50 [2021-12-06 19:28:00,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 29 [2021-12-06 19:28:00,538 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:28:00,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:28:01,083 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:28:01,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:01,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99538561] [2021-12-06 19:28:01,084 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:28:01,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796099317] [2021-12-06 19:28:01,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796099317] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:28:01,084 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:28:01,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-12-06 19:28:01,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614056726] [2021-12-06 19:28:01,085 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:28:01,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-06 19:28:01,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:01,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-06 19:28:01,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2021-12-06 19:28:01,087 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 21 states, 21 states have (on average 2.0) internal successors, (42), 21 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:01,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:01,666 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2021-12-06 19:28:01,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 19:28:01,666 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.0) internal successors, (42), 21 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-06 19:28:01,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:01,667 INFO L225 Difference]: With dead ends: 50 [2021-12-06 19:28:01,667 INFO L226 Difference]: Without dead ends: 48 [2021-12-06 19:28:01,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2021-12-06 19:28:01,669 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 19 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:01,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 128 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 214 Invalid, 0 Unknown, 11 Unchecked, 0.4s Time] [2021-12-06 19:28:01,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-12-06 19:28:01,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2021-12-06 19:28:01,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 41 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:01,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2021-12-06 19:28:01,675 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 24 [2021-12-06 19:28:01,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:01,675 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2021-12-06 19:28:01,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.0) internal successors, (42), 21 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:01,675 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2021-12-06 19:28:01,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-06 19:28:01,676 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:01,676 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:28:01,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:28:01,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:28:01,877 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:28:01,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:01,878 INFO L85 PathProgramCache]: Analyzing trace with hash 831040416, now seen corresponding path program 2 times [2021-12-06 19:28:01,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:01,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536477579] [2021-12-06 19:28:01,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:01,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:01,896 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:28:01,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1243397557] [2021-12-06 19:28:01,897 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:28:01,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:28:01,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:01,897 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:28:01,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 19:28:01,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 19:28:01,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:28:01,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:28:01,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:28:01,980 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 19:28:01,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:28:02,025 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 19:28:02,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:02,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536477579] [2021-12-06 19:28:02,026 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:28:02,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243397557] [2021-12-06 19:28:02,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243397557] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:28:02,026 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:28:02,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-12-06 19:28:02,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597497733] [2021-12-06 19:28:02,027 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:28:02,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:02,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:02,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:02,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:02,028 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:02,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:02,149 INFO L93 Difference]: Finished difference Result 106 states and 123 transitions. [2021-12-06 19:28:02,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:28:02,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-12-06 19:28:02,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:02,150 INFO L225 Difference]: With dead ends: 106 [2021-12-06 19:28:02,150 INFO L226 Difference]: Without dead ends: 61 [2021-12-06 19:28:02,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:28:02,152 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 46 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:02,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 55 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:28:02,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-12-06 19:28:02,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 42. [2021-12-06 19:28:02,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.170731707317073) internal successors, (48), 41 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:02,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2021-12-06 19:28:02,161 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 26 [2021-12-06 19:28:02,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:02,161 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-12-06 19:28:02,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:02,161 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2021-12-06 19:28:02,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-06 19:28:02,162 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:02,162 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:28:02,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 19:28:02,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:28:02,367 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:28:02,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:02,369 INFO L85 PathProgramCache]: Analyzing trace with hash -756951010, now seen corresponding path program 3 times [2021-12-06 19:28:02,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:02,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475450381] [2021-12-06 19:28:02,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:02,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:02,417 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:28:02,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1709921705] [2021-12-06 19:28:02,418 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 19:28:02,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:28:02,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:02,419 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:28:02,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 19:28:02,470 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-12-06 19:28:02,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:28:02,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:28:02,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:28:02,521 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 19:28:02,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:28:02,560 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 19:28:02,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:02,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475450381] [2021-12-06 19:28:02,561 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:28:02,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709921705] [2021-12-06 19:28:02,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709921705] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:28:02,561 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:28:02,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-12-06 19:28:02,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030045612] [2021-12-06 19:28:02,562 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:28:02,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:02,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:02,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:02,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:02,563 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:02,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:02,656 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2021-12-06 19:28:02,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:28:02,656 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-06 19:28:02,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:02,657 INFO L225 Difference]: With dead ends: 59 [2021-12-06 19:28:02,657 INFO L226 Difference]: Without dead ends: 50 [2021-12-06 19:28:02,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:28:02,659 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 74 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:02,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 38 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:28:02,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-12-06 19:28:02,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2021-12-06 19:28:02,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 34 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:02,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2021-12-06 19:28:02,664 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 28 [2021-12-06 19:28:02,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:02,665 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2021-12-06 19:28:02,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:02,665 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2021-12-06 19:28:02,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-06 19:28:02,666 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:02,666 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:28:02,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 19:28:02,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:28:02,868 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:28:02,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:02,870 INFO L85 PathProgramCache]: Analyzing trace with hash -826292134, now seen corresponding path program 4 times [2021-12-06 19:28:02,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:02,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279010765] [2021-12-06 19:28:02,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:02,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:02,937 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:28:02,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1240318860] [2021-12-06 19:28:02,938 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 19:28:02,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:28:02,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:02,941 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:28:02,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 19:28:03,029 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 19:28:03,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:28:03,031 WARN L261 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 63 conjunts are in the unsatisfiable core [2021-12-06 19:28:03,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:28:03,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 19:28:03,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:03,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 23 treesize of output 22 [2021-12-06 19:28:03,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:03,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:03,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-12-06 19:28:03,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:03,178 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:28:03,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:03,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2021-12-06 19:28:03,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:03,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:03,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 51 treesize of output 35 [2021-12-06 19:28:03,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:03,320 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:28:03,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:03,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 41 [2021-12-06 19:28:03,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:03,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:03,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 49 treesize of output 35 [2021-12-06 19:28:03,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:03,481 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:28:03,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:03,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 79 [2021-12-06 19:28:03,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:03,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:03,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 59 treesize of output 41 [2021-12-06 19:28:03,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:03,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 34 [2021-12-06 19:28:03,860 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:28:03,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:28:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:28:19,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:19,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279010765] [2021-12-06 19:28:19,893 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:28:19,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240318860] [2021-12-06 19:28:19,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240318860] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:28:19,893 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:28:19,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 37 [2021-12-06 19:28:19,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540580081] [2021-12-06 19:28:19,893 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:28:19,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-12-06 19:28:19,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:19,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-12-06 19:28:19,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1137, Unknown=0, NotChecked=0, Total=1332 [2021-12-06 19:28:19,895 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 37 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 37 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:43,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:43,125 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2021-12-06 19:28:43,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-12-06 19:28:43,125 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 37 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-12-06 19:28:43,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:43,126 INFO L225 Difference]: With dead ends: 70 [2021-12-06 19:28:43,126 INFO L226 Difference]: Without dead ends: 68 [2021-12-06 19:28:43,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 34.5s TimeCoverageRelationStatistics Valid=317, Invalid=2034, Unknown=1, NotChecked=0, Total=2352 [2021-12-06 19:28:43,128 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 24 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:43,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 175 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 578 Invalid, 0 Unknown, 68 Unchecked, 3.4s Time] [2021-12-06 19:28:43,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-12-06 19:28:43,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 60. [2021-12-06 19:28:43,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.1694915254237288) internal successors, (69), 59 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:43,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2021-12-06 19:28:43,134 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 32 [2021-12-06 19:28:43,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:43,134 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2021-12-06 19:28:43,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 37 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:43,134 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2021-12-06 19:28:43,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-06 19:28:43,135 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:43,135 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:28:43,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 19:28:43,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:28:43,336 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:28:43,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:43,336 INFO L85 PathProgramCache]: Analyzing trace with hash 332676504, now seen corresponding path program 5 times [2021-12-06 19:28:43,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:43,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28496813] [2021-12-06 19:28:43,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:43,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:43,373 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:28:43,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [907872549] [2021-12-06 19:28:43,374 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-06 19:28:43,374 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:28:43,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,375 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:28:43,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 19:28:43,514 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-12-06 19:28:43,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:28:43,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 19:28:43,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:28:43,567 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-06 19:28:43,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:28:43,611 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-06 19:28:43,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:43,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28496813] [2021-12-06 19:28:43,611 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:28:43,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907872549] [2021-12-06 19:28:43,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907872549] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:28:43,611 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:28:43,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-12-06 19:28:43,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607003035] [2021-12-06 19:28:43,612 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:28:43,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:28:43,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:43,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:28:43,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:28:43,612 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:43,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:43,738 INFO L93 Difference]: Finished difference Result 140 states and 157 transitions. [2021-12-06 19:28:43,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 19:28:43,738 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-12-06 19:28:43,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:43,739 INFO L225 Difference]: With dead ends: 140 [2021-12-06 19:28:43,739 INFO L226 Difference]: Without dead ends: 105 [2021-12-06 19:28:43,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:28:43,740 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 102 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:43,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 71 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:28:43,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-12-06 19:28:43,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 77. [2021-12-06 19:28:43,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.131578947368421) internal successors, (86), 76 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:43,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2021-12-06 19:28:43,748 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 34 [2021-12-06 19:28:43,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:43,749 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2021-12-06 19:28:43,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:43,749 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2021-12-06 19:28:43,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-06 19:28:43,750 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:43,750 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:28:43,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 19:28:43,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-06 19:28:43,951 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:28:43,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:43,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1737020496, now seen corresponding path program 1 times [2021-12-06 19:28:43,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:43,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900405711] [2021-12-06 19:28:43,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:43,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:43,996 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:28:43,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [641005295] [2021-12-06 19:28:43,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:43,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:28:43,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,998 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:28:44,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 19:28:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:44,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 74 conjunts are in the unsatisfiable core [2021-12-06 19:28:44,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:28:44,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-06 19:28:44,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7 [2021-12-06 19:28:44,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 23 treesize of output 22 [2021-12-06 19:28:44,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:44,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-12-06 19:28:44,157 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:28:44,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:44,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2021-12-06 19:28:44,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:44,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 51 treesize of output 35 [2021-12-06 19:28:44,273 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:28:44,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:44,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 41 [2021-12-06 19:28:44,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:44,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 57 treesize of output 39 [2021-12-06 19:28:44,416 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:28:44,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:44,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 79 [2021-12-06 19:28:44,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:28:44,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 51 treesize of output 37 [2021-12-06 19:28:44,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 30 [2021-12-06 19:28:44,876 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:28:44,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:28:54,943 WARN L227 SmtUtils]: Spent 6.92s on a formula simplification. DAG size of input: 74 DAG size of output: 54 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 19:29:24,807 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:29:24,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:24,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900405711] [2021-12-06 19:29:24,807 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:29:24,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641005295] [2021-12-06 19:29:24,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641005295] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:29:24,807 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:29:24,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 42 [2021-12-06 19:29:24,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476125140] [2021-12-06 19:29:24,808 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:29:24,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-12-06 19:29:24,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:24,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-12-06 19:29:24,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=1387, Unknown=0, NotChecked=0, Total=1722 [2021-12-06 19:29:24,809 INFO L87 Difference]: Start difference. First operand 77 states and 86 transitions. Second operand has 42 states, 42 states have (on average 1.5714285714285714) internal successors, (66), 42 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:28,945 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse17 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse18 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse17))) (let ((.cse9 (select .cse6 .cse18)) (.cse0 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse13 (store .cse6 .cse18 (+ .cse9 .cse0))) (.cse7 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse17 8))) (let ((.cse8 (select .cse6 .cse7)) (.cse1 (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) (.cse14 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse13) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (and (= .cse0 (+ .cse1 1)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (let ((.cse2 (let ((.cse5 (store .cse6 .cse7 (+ .cse8 .cse0)))) (store .cse5 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse5) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse4 (mod (select .cse2 .cse3) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse2) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= (select (store .cse2 .cse3 .cse4) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse4 0)))) (= (select .cse6 .cse3) 1) (or (not (= .cse9 0)) (= .cse8 0)) (= .cse1 1) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (let ((.cse11 (let ((.cse12 (store .cse13 .cse7 (+ .cse14 (select .cse13 .cse7))))) (store .cse12 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse12 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse12) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse10 (mod (select .cse11 .cse3) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse11) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (= .cse10 0) (not (= (select (store .cse11 .cse3 .cse10) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))) (let ((.cse15 (store .cse13 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse13 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ .cse14 1))))) (let ((.cse16 (mod (select .cse15 .cse3) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse15) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= (select (store .cse15 .cse3 .cse16) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= 0 .cse16)))))))))) is different from true [2021-12-06 19:29:31,185 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse80 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (let ((.cse31 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse7 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse80))) (let ((.cse8 (select .cse3 .cse7)) (.cse30 (select .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse62 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 .cse30)))) (.cse4 (select .cse3 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse5 (+ .cse30 1)) (.cse32 (+ .cse4 .cse30)) (.cse21 (store .cse3 .cse7 1)) (.cse65 (select .cse62 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) (.cse22 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse80 8))) (and (let ((.cse0 (store .cse3 |c_ULTIMATE.start_main_~a~0#1.offset| (mod .cse4 .cse5)))) (let ((.cse2 (mod (select .cse0 .cse1) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse0) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= (select (store .cse0 .cse1 .cse2) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse2 0)))) (let ((.cse6 (store .cse3 .cse7 (mod .cse8 .cse5)))) (or (not (= (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= (select .cse6 .cse1) 0))) (let ((.cse20 (store .cse21 .cse22 1))) (let ((.cse18 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse20))) (let ((.cse19 (select .cse18 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse15 (select .cse19 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse16 (select .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse17 (select (select (store .cse18 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse19 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse15 .cse16))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (let ((.cse11 (store .cse18 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse19 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse15 .cse16 .cse17))))) (let ((.cse10 (let ((.cse12 (let ((.cse13 (let ((.cse14 (select .cse11 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse14 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse15 .cse16 .cse17))))) (store .cse13 .cse1 (+ (select (select (store .cse11 |c_ULTIMATE.start_main_~a~0#1.base| .cse13) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse13 .cse1)))))) (store .cse12 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse12 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse11 |c_ULTIMATE.start_main_~a~0#1.base| .cse12) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse9 (mod (select .cse10 .cse1) (+ (select (select (store .cse11 |c_ULTIMATE.start_main_~a~0#1.base| .cse10) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (= .cse9 0) (not (= (select (store .cse10 .cse1 .cse9) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))))))))) (let ((.cse29 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse32)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (let ((.cse25 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse4 .cse29 .cse30))))) (let ((.cse23 (let ((.cse26 (let ((.cse27 (let ((.cse28 (select .cse25 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse28 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse4 .cse29 .cse30 (select .cse28 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (store .cse27 .cse1 (+ (select (select (store .cse25 |c_ULTIMATE.start_main_~a~0#1.base| .cse27) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse27 .cse1)))))) (store .cse26 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse26 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse25 |c_ULTIMATE.start_main_~a~0#1.base| .cse26) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse24 (mod (select .cse23 .cse1) (+ (select (select (store .cse25 |c_ULTIMATE.start_main_~a~0#1.base| .cse23) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= (select (store .cse23 .cse1 .cse24) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse24 0)))))) (let ((.cse44 (store .cse3 .cse22 1))) (let ((.cse42 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse44))) (let ((.cse43 (select .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse40 (select .cse44 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse41 (select .cse43 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse39 (select (select (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse40 .cse41))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (let ((.cse35 (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse39 .cse40 .cse41))))) (let ((.cse33 (let ((.cse36 (let ((.cse37 (let ((.cse38 (select .cse35 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse38 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse39 (select .cse38 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse40 .cse41))))) (store .cse37 .cse1 (+ (select (select (store .cse35 |c_ULTIMATE.start_main_~a~0#1.base| .cse37) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse37 .cse1)))))) (store .cse36 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse36 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse35 |c_ULTIMATE.start_main_~a~0#1.base| .cse36) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse34 (mod (select .cse33 .cse1) (+ (select (select (store .cse35 |c_ULTIMATE.start_main_~a~0#1.base| .cse33) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= (select (store .cse33 .cse1 .cse34) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse34 0)))))))))) (let ((.cse45 (let ((.cse47 (let ((.cse48 (store .cse3 |c_ULTIMATE.start_main_~a~0#1.offset| .cse32))) (store .cse48 .cse1 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse48) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse48 .cse1)))))) (store .cse47 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse47 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse47) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse46 (mod (select .cse45 .cse1) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse45) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= 0 (select (store .cse45 .cse1 .cse46) |c_ULTIMATE.start_main_~a~0#1.offset|))) (= .cse46 0)))) (let ((.cse58 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse21))) (let ((.cse59 (select .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse56 (select .cse21 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse57 (select .cse59 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse55 (select (select (store .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse56 .cse57))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (let ((.cse51 (store .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse55 .cse56 .cse57))))) (let ((.cse49 (let ((.cse52 (let ((.cse53 (let ((.cse54 (select .cse51 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse54 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse54 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse55 .cse56 .cse57))))) (store .cse53 .cse1 (+ (select (select (store .cse51 |c_ULTIMATE.start_main_~a~0#1.base| .cse53) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse53 .cse1)))))) (store .cse52 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse52 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse51 |c_ULTIMATE.start_main_~a~0#1.base| .cse52) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse50 (mod (select .cse49 .cse1) (+ (select (select (store .cse51 |c_ULTIMATE.start_main_~a~0#1.base| .cse49) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= (select (store .cse49 .cse1 .cse50) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse50 0))))))))) (let ((.cse60 (let ((.cse63 (let ((.cse64 (store .cse65 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse65 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse8 .cse30)))) (store .cse64 .cse1 (+ (select .cse64 .cse1) (select (select (store .cse62 |c_ULTIMATE.start_main_~a~0#1.base| .cse64) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (store .cse63 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse63 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse62 |c_ULTIMATE.start_main_~a~0#1.base| .cse63) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse61 (mod (select .cse60 .cse1) (+ (select (select (store .cse62 |c_ULTIMATE.start_main_~a~0#1.base| .cse60) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= (select (store .cse60 .cse1 .cse61) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse61 0)))) (or (not (= .cse4 0)) (= (select .cse3 .cse1) 0)) (let ((.cse72 (select .cse65 .cse22))) (let ((.cse68 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 .cse30 .cse72))))) (let ((.cse66 (let ((.cse69 (let ((.cse70 (let ((.cse71 (select .cse68 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse71 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse8 (select .cse71 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse30 .cse72))))) (store .cse70 .cse1 (+ (select .cse70 .cse1) (select (select (store .cse68 |c_ULTIMATE.start_main_~a~0#1.base| .cse70) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (store .cse69 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse69 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse68 |c_ULTIMATE.start_main_~a~0#1.base| .cse69) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse67 (mod (select .cse66 .cse1) (+ (select (select (store .cse68 |c_ULTIMATE.start_main_~a~0#1.base| .cse66) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= (select (store .cse66 .cse1 .cse67) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse67 0)))))) (let ((.cse79 (select .cse3 .cse22))) (let ((.cse75 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse79 .cse30))))) (let ((.cse74 (let ((.cse76 (let ((.cse77 (let ((.cse78 (select .cse75 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse78 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse78 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse79 .cse30))))) (store .cse77 .cse1 (+ (select .cse77 .cse1) (select (select (store .cse75 |c_ULTIMATE.start_main_~a~0#1.base| .cse77) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (store .cse76 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse76 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse75 |c_ULTIMATE.start_main_~a~0#1.base| .cse76) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse73 (mod (select .cse74 .cse1) (+ (select (select (store .cse75 |c_ULTIMATE.start_main_~a~0#1.base| .cse74) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (= .cse73 0) (not (= (select (store .cse74 .cse1 .cse73) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))))))))))) is different from false [2021-12-06 19:29:33,198 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse80 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (let ((.cse31 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse7 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse80))) (let ((.cse8 (select .cse3 .cse7)) (.cse30 (select .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse62 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 .cse30)))) (.cse4 (select .cse3 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse5 (+ .cse30 1)) (.cse32 (+ .cse4 .cse30)) (.cse21 (store .cse3 .cse7 1)) (.cse65 (select .cse62 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) (.cse22 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse80 8))) (and (let ((.cse0 (store .cse3 |c_ULTIMATE.start_main_~a~0#1.offset| (mod .cse4 .cse5)))) (let ((.cse2 (mod (select .cse0 .cse1) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse0) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= (select (store .cse0 .cse1 .cse2) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse2 0)))) (let ((.cse6 (store .cse3 .cse7 (mod .cse8 .cse5)))) (or (not (= (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= (select .cse6 .cse1) 0))) (let ((.cse20 (store .cse21 .cse22 1))) (let ((.cse18 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse20))) (let ((.cse19 (select .cse18 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse15 (select .cse19 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse16 (select .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse17 (select (select (store .cse18 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse19 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse15 .cse16))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (let ((.cse11 (store .cse18 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse19 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse15 .cse16 .cse17))))) (let ((.cse10 (let ((.cse12 (let ((.cse13 (let ((.cse14 (select .cse11 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse14 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse15 .cse16 .cse17))))) (store .cse13 .cse1 (+ (select (select (store .cse11 |c_ULTIMATE.start_main_~a~0#1.base| .cse13) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse13 .cse1)))))) (store .cse12 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse12 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse11 |c_ULTIMATE.start_main_~a~0#1.base| .cse12) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse9 (mod (select .cse10 .cse1) (+ (select (select (store .cse11 |c_ULTIMATE.start_main_~a~0#1.base| .cse10) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (= .cse9 0) (not (= (select (store .cse10 .cse1 .cse9) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))))))))) (let ((.cse29 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse32)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (let ((.cse25 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse4 .cse29 .cse30))))) (let ((.cse23 (let ((.cse26 (let ((.cse27 (let ((.cse28 (select .cse25 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse28 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse4 .cse29 .cse30 (select .cse28 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (store .cse27 .cse1 (+ (select (select (store .cse25 |c_ULTIMATE.start_main_~a~0#1.base| .cse27) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse27 .cse1)))))) (store .cse26 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse26 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse25 |c_ULTIMATE.start_main_~a~0#1.base| .cse26) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse24 (mod (select .cse23 .cse1) (+ (select (select (store .cse25 |c_ULTIMATE.start_main_~a~0#1.base| .cse23) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= (select (store .cse23 .cse1 .cse24) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse24 0)))))) (let ((.cse44 (store .cse3 .cse22 1))) (let ((.cse42 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse44))) (let ((.cse43 (select .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse40 (select .cse44 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse41 (select .cse43 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse39 (select (select (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse40 .cse41))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (let ((.cse35 (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse39 .cse40 .cse41))))) (let ((.cse33 (let ((.cse36 (let ((.cse37 (let ((.cse38 (select .cse35 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse38 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse39 (select .cse38 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse40 .cse41))))) (store .cse37 .cse1 (+ (select (select (store .cse35 |c_ULTIMATE.start_main_~a~0#1.base| .cse37) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse37 .cse1)))))) (store .cse36 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse36 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse35 |c_ULTIMATE.start_main_~a~0#1.base| .cse36) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse34 (mod (select .cse33 .cse1) (+ (select (select (store .cse35 |c_ULTIMATE.start_main_~a~0#1.base| .cse33) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= (select (store .cse33 .cse1 .cse34) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse34 0)))))))))) (let ((.cse45 (let ((.cse47 (let ((.cse48 (store .cse3 |c_ULTIMATE.start_main_~a~0#1.offset| .cse32))) (store .cse48 .cse1 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse48) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse48 .cse1)))))) (store .cse47 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse47 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse47) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse46 (mod (select .cse45 .cse1) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse45) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= 0 (select (store .cse45 .cse1 .cse46) |c_ULTIMATE.start_main_~a~0#1.offset|))) (= .cse46 0)))) (let ((.cse58 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse21))) (let ((.cse59 (select .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse56 (select .cse21 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse57 (select .cse59 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse55 (select (select (store .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse56 .cse57))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (let ((.cse51 (store .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse55 .cse56 .cse57))))) (let ((.cse49 (let ((.cse52 (let ((.cse53 (let ((.cse54 (select .cse51 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse54 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse54 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse55 .cse56 .cse57))))) (store .cse53 .cse1 (+ (select (select (store .cse51 |c_ULTIMATE.start_main_~a~0#1.base| .cse53) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse53 .cse1)))))) (store .cse52 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse52 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse51 |c_ULTIMATE.start_main_~a~0#1.base| .cse52) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse50 (mod (select .cse49 .cse1) (+ (select (select (store .cse51 |c_ULTIMATE.start_main_~a~0#1.base| .cse49) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= (select (store .cse49 .cse1 .cse50) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse50 0))))))))) (let ((.cse60 (let ((.cse63 (let ((.cse64 (store .cse65 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse65 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse8 .cse30)))) (store .cse64 .cse1 (+ (select .cse64 .cse1) (select (select (store .cse62 |c_ULTIMATE.start_main_~a~0#1.base| .cse64) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (store .cse63 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse63 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse62 |c_ULTIMATE.start_main_~a~0#1.base| .cse63) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse61 (mod (select .cse60 .cse1) (+ (select (select (store .cse62 |c_ULTIMATE.start_main_~a~0#1.base| .cse60) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= (select (store .cse60 .cse1 .cse61) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse61 0)))) (or (not (= .cse4 0)) (= (select .cse3 .cse1) 0)) (let ((.cse72 (select .cse65 .cse22))) (let ((.cse68 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 .cse30 .cse72))))) (let ((.cse66 (let ((.cse69 (let ((.cse70 (let ((.cse71 (select .cse68 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse71 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse8 (select .cse71 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse30 .cse72))))) (store .cse70 .cse1 (+ (select .cse70 .cse1) (select (select (store .cse68 |c_ULTIMATE.start_main_~a~0#1.base| .cse70) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (store .cse69 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse69 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse68 |c_ULTIMATE.start_main_~a~0#1.base| .cse69) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse67 (mod (select .cse66 .cse1) (+ (select (select (store .cse68 |c_ULTIMATE.start_main_~a~0#1.base| .cse66) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= (select (store .cse66 .cse1 .cse67) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse67 0)))))) (let ((.cse79 (select .cse3 .cse22))) (let ((.cse75 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse79 .cse30))))) (let ((.cse74 (let ((.cse76 (let ((.cse77 (let ((.cse78 (select .cse75 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse78 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse78 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse79 .cse30))))) (store .cse77 .cse1 (+ (select .cse77 .cse1) (select (select (store .cse75 |c_ULTIMATE.start_main_~a~0#1.base| .cse77) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (store .cse76 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse76 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse75 |c_ULTIMATE.start_main_~a~0#1.base| .cse76) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse73 (mod (select .cse74 .cse1) (+ (select (select (store .cse75 |c_ULTIMATE.start_main_~a~0#1.base| .cse74) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (= .cse73 0) (not (= (select (store .cse74 .cse1 .cse73) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))))))))))) is different from true [2021-12-06 19:29:47,583 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse54 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (let ((.cse8 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse50 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse54))) (let ((.cse22 (select .cse5 .cse50)) (.cse53 (+ .cse8 1))) (let ((.cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse54 8)) (.cse51 (mod .cse22 .cse53))) (let ((.cse0 (store .cse5 .cse50 .cse51)) (.cse21 (store .cse5 .cse50 1)) (.cse23 (= .cse51 0)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) (.cse7 (select .cse5 .cse6))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (or (not (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= (select .cse0 .cse1) 0)) (let ((.cse2 (let ((.cse4 (store .cse5 .cse6 (+ .cse7 .cse8)))) (store .cse4 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse4) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse3 (mod (select .cse2 .cse1) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse2) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= (select (store .cse2 .cse1 .cse3) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse3 0)))) (let ((.cse20 (store .cse21 .cse6 1))) (let ((.cse18 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse20))) (let ((.cse19 (select .cse18 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse15 (select .cse19 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse16 (select .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse17 (select (select (store .cse18 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse19 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse15 .cse16))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (let ((.cse11 (store .cse18 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse19 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse15 .cse16 .cse17))))) (let ((.cse10 (let ((.cse12 (let ((.cse13 (let ((.cse14 (select .cse11 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse14 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse15 .cse16 .cse17))))) (store .cse13 .cse1 (+ (select (select (store .cse11 |c_ULTIMATE.start_main_~a~0#1.base| .cse13) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse13 .cse1)))))) (store .cse12 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse12 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse11 |c_ULTIMATE.start_main_~a~0#1.base| .cse12) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse9 (mod (select .cse10 .cse1) (+ (select (select (store .cse11 |c_ULTIMATE.start_main_~a~0#1.base| .cse10) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (= .cse9 0) (not (= (select (store .cse10 .cse1 .cse9) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))))))))) (or (not (= .cse22 0)) (= .cse7 0)) (let ((.cse24 (store .cse0 .cse6 (mod (select .cse0 .cse6) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse0) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1))))) (or (and (not .cse23) (< .cse22 0)) (= (select .cse24 .cse1) 0) (not (= (select .cse24 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= 3 (select .cse5 .cse1)) (= (select .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|) 3) (= 2 .cse8) (let ((.cse36 (store .cse5 .cse6 1))) (let ((.cse34 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse36))) (let ((.cse35 (select .cse34 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse32 (select .cse36 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse33 (select .cse35 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse31 (select (select (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse35 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse32 .cse33))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (let ((.cse27 (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse35 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse31 .cse32 .cse33))))) (let ((.cse25 (let ((.cse28 (let ((.cse29 (let ((.cse30 (select .cse27 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse30 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse31 (select .cse30 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse32 .cse33))))) (store .cse29 .cse1 (+ (select (select (store .cse27 |c_ULTIMATE.start_main_~a~0#1.base| .cse29) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse29 .cse1)))))) (store .cse28 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse28 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse27 |c_ULTIMATE.start_main_~a~0#1.base| .cse28) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse26 (mod (select .cse25 .cse1) (+ (select (select (store .cse27 |c_ULTIMATE.start_main_~a~0#1.base| .cse25) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= (select (store .cse25 .cse1 .cse26) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse26 0)))))))))) (let ((.cse46 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse21))) (let ((.cse47 (select .cse46 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse44 (select .cse21 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse45 (select .cse47 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse43 (select (select (store .cse46 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse47 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse45))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (let ((.cse39 (store .cse46 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse47 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse43 .cse44 .cse45))))) (let ((.cse37 (let ((.cse40 (let ((.cse41 (let ((.cse42 (select .cse39 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse42 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse42 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse43 .cse44 .cse45))))) (store .cse41 .cse1 (+ (select (select (store .cse39 |c_ULTIMATE.start_main_~a~0#1.base| .cse41) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse41 .cse1)))))) (store .cse40 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse40 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse39 |c_ULTIMATE.start_main_~a~0#1.base| .cse40) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (let ((.cse38 (mod (select .cse37 .cse1) (+ (select (select (store .cse39 |c_ULTIMATE.start_main_~a~0#1.base| .cse37) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (or (not (= (select (store .cse37 .cse1 .cse38) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse38 0))))))))) (let ((.cse48 (let ((.cse49 (store .cse5 .cse50 (+ .cse51 .cse8 1)))) (store .cse49 .cse6 (mod (select .cse49 .cse6) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse49) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (or .cse23 (<= 0 .cse22) (not (= (select .cse48 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= (select .cse48 .cse1) 0))) (let ((.cse52 (store .cse5 .cse6 (mod .cse7 .cse53)))) (or (= (select .cse52 .cse1) 0) (not (= (select .cse52 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))))))))) is different from true [2021-12-06 19:30:34,301 WARN L227 SmtUtils]: Spent 10.56s on a formula simplification that was a NOOP. DAG size: 116 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 19:30:36,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 19:30:41,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 19:30:44,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 19:30:46,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 19:31:07,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 19:31:09,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 19:31:59,167 WARN L227 SmtUtils]: Spent 30.68s on a formula simplification. DAG size of input: 230 DAG size of output: 150 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 19:32:31,442 WARN L227 SmtUtils]: Spent 14.60s on a formula simplification that was a NOOP. DAG size: 112 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 19:32:35,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 19:32:38,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 19:32:39,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 19:32:57,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:57,086 INFO L93 Difference]: Finished difference Result 111 states and 124 transitions. [2021-12-06 19:32:57,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-06 19:32:57,087 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 1.5714285714285714) internal successors, (66), 42 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-12-06 19:32:57,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:57,089 INFO L225 Difference]: With dead ends: 111 [2021-12-06 19:32:57,089 INFO L226 Difference]: Without dead ends: 81 [2021-12-06 19:32:57,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 198.2s TimeCoverageRelationStatistics Valid=648, Invalid=2545, Unknown=11, NotChecked=336, Total=3540 [2021-12-06 19:32:57,091 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 110 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 260 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 50.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:57,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 138 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 484 Invalid, 6 Unknown, 39 Unchecked, 50.8s Time] [2021-12-06 19:32:57,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-12-06 19:32:57,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 73. [2021-12-06 19:32:57,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.1527777777777777) internal successors, (83), 72 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:57,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2021-12-06 19:32:57,101 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 36 [2021-12-06 19:32:57,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:57,101 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2021-12-06 19:32:57,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 1.5714285714285714) internal successors, (66), 42 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:57,102 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2021-12-06 19:32:57,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-06 19:32:57,103 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:57,103 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:32:57,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 19:32:57,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-12-06 19:32:57,305 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:32:57,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:57,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1245131882, now seen corresponding path program 6 times [2021-12-06 19:32:57,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:57,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861220259] [2021-12-06 19:32:57,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:57,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:57,357 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:32:57,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602856299] [2021-12-06 19:32:57,358 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-06 19:32:57,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:32:57,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:32:57,359 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:32:57,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 19:32:57,411 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-12-06 19:32:57,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:32:57,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 19:32:57,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:32:57,485 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-06 19:32:57,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:32:57,550 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-06 19:32:57,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:32:57,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861220259] [2021-12-06 19:32:57,550 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:32:57,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602856299] [2021-12-06 19:32:57,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602856299] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:32:57,550 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:32:57,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-12-06 19:32:57,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044567154] [2021-12-06 19:32:57,551 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:32:57,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:32:57,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:32:57,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:32:57,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:32:57,552 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:57,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:57,711 INFO L93 Difference]: Finished difference Result 95 states and 104 transitions. [2021-12-06 19:32:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:32:57,711 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-12-06 19:32:57,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:57,712 INFO L225 Difference]: With dead ends: 95 [2021-12-06 19:32:57,712 INFO L226 Difference]: Without dead ends: 73 [2021-12-06 19:32:57,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-12-06 19:32:57,713 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 134 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:57,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 57 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:32:57,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-12-06 19:32:57,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 43. [2021-12-06 19:32:57,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.119047619047619) internal successors, (47), 42 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:57,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2021-12-06 19:32:57,717 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 36 [2021-12-06 19:32:57,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:57,717 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2021-12-06 19:32:57,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:57,717 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2021-12-06 19:32:57,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-06 19:32:57,718 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:57,718 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:32:57,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 19:32:57,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:32:57,920 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:32:57,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:57,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1201221586, now seen corresponding path program 7 times [2021-12-06 19:32:57,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:57,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844158108] [2021-12-06 19:32:57,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:57,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:57,969 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:32:57,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [614981046] [2021-12-06 19:32:57,970 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-06 19:32:57,970 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:32:57,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:32:57,971 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:32:57,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 19:32:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:32:58,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 85 conjunts are in the unsatisfiable core [2021-12-06 19:32:58,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:32:58,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-06 19:32:58,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7 [2021-12-06 19:32:58,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 23 treesize of output 22 [2021-12-06 19:32:58,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-12-06 19:32:58,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-12-06 19:32:58,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,241 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:32:58,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2021-12-06 19:32:58,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,312 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:32:58,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 49 [2021-12-06 19:32:58,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 49 [2021-12-06 19:32:58,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,490 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:32:58,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 53 [2021-12-06 19:32:58,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,588 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:32:58,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 53 [2021-12-06 19:32:58,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 53 [2021-12-06 19:32:58,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,856 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:32:58,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:58,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 237 treesize of output 122 [2021-12-06 19:32:59,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:59,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:59,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:59,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:59,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:59,015 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:32:59,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 55 [2021-12-06 19:32:59,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:32:59,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 59 treesize of output 37 [2021-12-06 19:32:59,295 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:32:59,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:33:53,453 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:33:53,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:53,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844158108] [2021-12-06 19:33:53,453 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:33:53,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614981046] [2021-12-06 19:33:53,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614981046] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:33:53,453 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:33:53,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 53 [2021-12-06 19:33:53,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195788794] [2021-12-06 19:33:53,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:33:53,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-12-06 19:33:53,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:53,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-12-06 19:33:53,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=2423, Unknown=1, NotChecked=0, Total=2756 [2021-12-06 19:33:53,456 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 53 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 53 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:37,045 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_448 Int) (v_ArrVal_446 Int)) (= (select (store (store (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8) v_ArrVal_446) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16) v_ArrVal_448) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (forall ((v_ArrVal_448 Int) (v_ArrVal_446 Int)) (= (select (store (store (let ((.cse1 (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8) 8))) (store .cse2 .cse3 (+ (select .cse2 .cse3) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (store .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse1) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8) v_ArrVal_446) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16) v_ArrVal_448) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))) is different from false [2021-12-06 19:36:54,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:36:54,992 INFO L93 Difference]: Finished difference Result 115 states and 131 transitions. [2021-12-06 19:36:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-12-06 19:36:54,992 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 53 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-12-06 19:36:54,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:36:54,993 INFO L225 Difference]: With dead ends: 115 [2021-12-06 19:36:54,993 INFO L226 Difference]: Without dead ends: 113 [2021-12-06 19:36:54,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 235.1s TimeCoverageRelationStatistics Valid=449, Invalid=3566, Unknown=21, NotChecked=124, Total=4160 [2021-12-06 19:36:54,995 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 43 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 437 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:36:54,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 192 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 160 Invalid, 0 Unknown, 437 Unchecked, 0.2s Time] [2021-12-06 19:36:54,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-12-06 19:36:55,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 106. [2021-12-06 19:36:55,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.161904761904762) internal successors, (122), 105 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:55,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2021-12-06 19:36:55,008 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 40 [2021-12-06 19:36:55,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:36:55,008 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2021-12-06 19:36:55,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 53 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:55,009 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2021-12-06 19:36:55,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-06 19:36:55,009 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:36:55,010 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:36:55,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-06 19:36:55,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-06 19:36:55,211 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:36:55,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:55,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1012369648, now seen corresponding path program 8 times [2021-12-06 19:36:55,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:36:55,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375528476] [2021-12-06 19:36:55,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:55,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:36:55,259 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:36:55,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1302036800] [2021-12-06 19:36:55,259 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:36:55,260 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:36:55,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:36:55,260 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:36:55,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-06 19:36:55,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 19:36:55,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:36:55,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 19:36:55,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:36:55,394 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 19:36:55,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:36:55,482 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 19:36:55,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:36:55,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375528476] [2021-12-06 19:36:55,483 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:36:55,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302036800] [2021-12-06 19:36:55,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302036800] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:36:55,483 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:36:55,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2021-12-06 19:36:55,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537938545] [2021-12-06 19:36:55,483 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:36:55,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-06 19:36:55,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:36:55,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-06 19:36:55,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-12-06 19:36:55,484 INFO L87 Difference]: Start difference. First operand 106 states and 122 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:55,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:36:55,754 INFO L93 Difference]: Finished difference Result 215 states and 241 transitions. [2021-12-06 19:36:55,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 19:36:55,755 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-12-06 19:36:55,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:36:55,756 INFO L225 Difference]: With dead ends: 215 [2021-12-06 19:36:55,756 INFO L226 Difference]: Without dead ends: 170 [2021-12-06 19:36:55,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2021-12-06 19:36:55,757 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 158 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:36:55,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 98 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:36:55,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-12-06 19:36:55,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 119. [2021-12-06 19:36:55,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 118 states have (on average 1.1271186440677967) internal successors, (133), 118 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:55,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 133 transitions. [2021-12-06 19:36:55,767 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 133 transitions. Word has length 42 [2021-12-06 19:36:55,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:36:55,767 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 133 transitions. [2021-12-06 19:36:55,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:55,768 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 133 transitions. [2021-12-06 19:36:55,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 19:36:55,768 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:36:55,768 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:36:55,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-06 19:36:55,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:36:55,970 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:36:55,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:55,971 INFO L85 PathProgramCache]: Analyzing trace with hash 2112995272, now seen corresponding path program 2 times [2021-12-06 19:36:55,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:36:55,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687972737] [2021-12-06 19:36:55,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:55,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:36:56,020 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:36:56,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [810621773] [2021-12-06 19:36:56,020 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:36:56,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:36:56,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:36:56,022 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:36:56,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-06 19:36:56,088 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 19:36:56,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:36:56,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 96 conjunts are in the unsatisfiable core [2021-12-06 19:36:56,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:36:56,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 19:36:56,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-06 19:36:56,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 23 treesize of output 22 [2021-12-06 19:36:56,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-12-06 19:36:56,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-12-06 19:36:56,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,283 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:36:56,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2021-12-06 19:36:56,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,347 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:36:56,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2021-12-06 19:36:56,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 47 [2021-12-06 19:36:56,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,523 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:36:56,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 53 [2021-12-06 19:36:56,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,625 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:36:56,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 58 [2021-12-06 19:36:56,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 53 [2021-12-06 19:36:56,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,874 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:36:56,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 91 [2021-12-06 19:36:56,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:56,994 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:36:56,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 94 [2021-12-06 19:36:57,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:57,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:57,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:36:57,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 49 [2021-12-06 19:36:57,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 30 [2021-12-06 19:36:57,977 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:36:57,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:37:11,802 WARN L227 SmtUtils]: Spent 10.13s on a formula simplification. DAG size of input: 89 DAG size of output: 89 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 19:39:50,406 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:39:50,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:39:50,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687972737] [2021-12-06 19:39:50,406 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:39:50,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810621773] [2021-12-06 19:39:50,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810621773] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:39:50,407 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:39:50,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 31] total 58 [2021-12-06 19:39:50,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314611098] [2021-12-06 19:39:50,407 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:39:50,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-12-06 19:39:50,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:39:50,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-12-06 19:39:50,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=656, Invalid=2643, Unknown=7, NotChecked=0, Total=3306 [2021-12-06 19:39:50,409 INFO L87 Difference]: Start difference. First operand 119 states and 133 transitions. Second operand has 58 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 58 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:54,183 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_603 Int)) (let ((.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (let ((.cse0 (let ((.cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16))) (store (let ((.cse13 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse9 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse12 (select .cse13 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse11 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse13 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse9 .cse12))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (let ((.cse10 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse13 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse9 .cse11 .cse12))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6))) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse13 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse9 .cse10 .cse11 .cse12))))) (let ((.cse2 (let ((.cse4 (let ((.cse5 (let ((.cse7 (let ((.cse8 (select .cse3 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse8 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse9 .cse10 .cse11 .cse12 (select .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (store .cse7 .cse1 (+ (select .cse7 .cse1) (select (select (store .cse3 |c_ULTIMATE.start_main_~a~0#1.base| .cse7) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (store .cse5 .cse6 (+ (select (select (store .cse3 |c_ULTIMATE.start_main_~a~0#1.base| .cse5) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse5 .cse6)))))) (store .cse4 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse3 |c_ULTIMATE.start_main_~a~0#1.base| .cse4) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (store .cse2 .cse1 (mod (select .cse2 .cse1) (+ (select (select (store .cse3 |c_ULTIMATE.start_main_~a~0#1.base| .cse2) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1))))))))) .cse6 v_ArrVal_603)))) (or (not (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= (select .cse0 .cse1) 0))))) (forall ((v_ArrVal_603 Int)) (let ((.cse15 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (let ((.cse14 (let ((.cse20 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16))) (store (let ((.cse29 (let ((.cse30 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse30 8) 1) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse30 16) 1)))) (let ((.cse27 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse29))) (let ((.cse28 (select .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse23 (select .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse24 (select .cse29 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse26 (select (select (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse24))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse25 (select (select (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse24 .cse26))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse20))) (let ((.cse17 (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse24 .cse25 .cse26))))) (let ((.cse16 (let ((.cse18 (let ((.cse19 (let ((.cse21 (let ((.cse22 (select .cse17 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse22 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse23 (select .cse22 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse24 .cse25 .cse26))))) (store .cse21 .cse15 (+ (select .cse21 .cse15) (select (select (store .cse17 |c_ULTIMATE.start_main_~a~0#1.base| .cse21) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (store .cse19 .cse20 (+ (select .cse19 .cse20) (select (select (store .cse17 |c_ULTIMATE.start_main_~a~0#1.base| .cse19) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (store .cse18 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse17 |c_ULTIMATE.start_main_~a~0#1.base| .cse18) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (store .cse16 .cse15 (mod (select .cse16 .cse15) (+ (select (select (store .cse17 |c_ULTIMATE.start_main_~a~0#1.base| .cse16) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1))))))))))) .cse20 v_ArrVal_603)))) (or (not (= (select .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= (select .cse14 .cse15) 0))))) (let ((.cse31 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (or (not (= (select .cse31 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= (select .cse31 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 0))) (forall ((v_ArrVal_603 Int)) (let ((.cse33 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (let ((.cse32 (let ((.cse38 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16))) (store (let ((.cse47 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8) 8) 1))) (let ((.cse45 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse47))) (let ((.cse46 (select .cse45 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse43 (select .cse47 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse44 (select .cse46 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse41 (select (select (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse46 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse43 .cse44))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse33))) (let ((.cse42 (select (select (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse46 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse41 .cse43 .cse44))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse38))) (let ((.cse35 (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse46 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse41 .cse42 .cse43 .cse44))))) (let ((.cse34 (let ((.cse36 (let ((.cse37 (let ((.cse39 (let ((.cse40 (select .cse35 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse40 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse41 (select .cse40 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse42 .cse43 .cse44))))) (store .cse39 .cse33 (+ (select .cse39 .cse33) (select (select (store .cse35 |c_ULTIMATE.start_main_~a~0#1.base| .cse39) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (store .cse37 .cse38 (+ (select .cse37 .cse38) (select (select (store .cse35 |c_ULTIMATE.start_main_~a~0#1.base| .cse37) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (store .cse36 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse36 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse35 |c_ULTIMATE.start_main_~a~0#1.base| .cse36) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (store .cse34 .cse33 (mod (select .cse34 .cse33) (+ (select (select (store .cse35 |c_ULTIMATE.start_main_~a~0#1.base| .cse34) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1))))))))))) .cse38 v_ArrVal_603)))) (or (not (= (select .cse32 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= (select .cse32 .cse33) 0)))))) is different from true [2021-12-06 19:39:56,207 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_603 Int)) (let ((.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (let ((.cse0 (let ((.cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16))) (store (let ((.cse13 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse9 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse12 (select .cse13 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse11 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse13 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse9 .cse12))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (let ((.cse10 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse13 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse9 .cse11 .cse12))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6))) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse13 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse9 .cse10 .cse11 .cse12))))) (let ((.cse2 (let ((.cse4 (let ((.cse5 (let ((.cse7 (let ((.cse8 (select .cse3 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse8 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse9 .cse10 .cse11 .cse12 (select .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (store .cse7 .cse1 (+ (select .cse7 .cse1) (select (select (store .cse3 |c_ULTIMATE.start_main_~a~0#1.base| .cse7) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (store .cse5 .cse6 (+ (select (select (store .cse3 |c_ULTIMATE.start_main_~a~0#1.base| .cse5) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse5 .cse6)))))) (store .cse4 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse3 |c_ULTIMATE.start_main_~a~0#1.base| .cse4) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (store .cse2 .cse1 (mod (select .cse2 .cse1) (+ (select (select (store .cse3 |c_ULTIMATE.start_main_~a~0#1.base| .cse2) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1))))))))) .cse6 v_ArrVal_603)))) (or (not (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= (select .cse0 .cse1) 0))))) (forall ((v_ArrVal_603 Int)) (let ((.cse15 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (let ((.cse14 (let ((.cse20 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16))) (store (let ((.cse29 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8)) 1))) (let ((.cse27 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse29))) (let ((.cse28 (select .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse25 (select .cse29 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse26 (select .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse23 (select (select (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse25 .cse26))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse24 (select (select (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse25 .cse26))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse20))) (let ((.cse17 (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse24 .cse25 .cse26))))) (let ((.cse16 (let ((.cse18 (let ((.cse19 (let ((.cse21 (let ((.cse22 (select .cse17 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse22 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse23 .cse24 .cse25 (select .cse22 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse26))))) (store .cse21 .cse15 (+ (select (select (store .cse17 |c_ULTIMATE.start_main_~a~0#1.base| .cse21) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse21 .cse15)))))) (store .cse19 .cse20 (+ (select .cse19 .cse20) (select (select (store .cse17 |c_ULTIMATE.start_main_~a~0#1.base| .cse19) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (store .cse18 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse17 |c_ULTIMATE.start_main_~a~0#1.base| .cse18) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (store .cse16 .cse15 (mod (select .cse16 .cse15) (+ (select (select (store .cse17 |c_ULTIMATE.start_main_~a~0#1.base| .cse16) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1))))))))))) .cse20 v_ArrVal_603)))) (or (not (= (select .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= (select .cse14 .cse15) 0))))) (forall ((v_ArrVal_603 Int)) (let ((.cse31 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (let ((.cse30 (let ((.cse36 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16))) (store (let ((.cse45 (let ((.cse46 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse46) 1) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse46 8) 1)))) (let ((.cse43 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse45))) (let ((.cse44 (select .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse39 (select .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse40 (select .cse45 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse42 (select (select (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse39 .cse40))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse31))) (let ((.cse41 (select (select (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse39 .cse40 .cse42))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse36))) (let ((.cse33 (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse39 .cse40 .cse41 .cse42))))) (let ((.cse32 (let ((.cse34 (let ((.cse35 (let ((.cse37 (let ((.cse38 (select .cse33 |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse38 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse39 (select .cse38 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse40 .cse41 .cse42))))) (store .cse37 .cse31 (+ (select (select (store .cse33 |c_ULTIMATE.start_main_~a~0#1.base| .cse37) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse37 .cse31)))))) (store .cse35 .cse36 (+ (select (select (store .cse33 |c_ULTIMATE.start_main_~a~0#1.base| .cse35) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse35 .cse36)))))) (store .cse34 |c_ULTIMATE.start_main_~a~0#1.offset| (mod (select .cse34 |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (select (select (store .cse33 |c_ULTIMATE.start_main_~a~0#1.base| .cse34) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1)))))) (store .cse32 .cse31 (mod (select .cse32 .cse31) (+ 1 (select (select (store .cse33 |c_ULTIMATE.start_main_~a~0#1.base| .cse32) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))))))))) .cse36 v_ArrVal_603)))) (or (not (= (select .cse30 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= (select .cse30 .cse31) 0)))))) is different from false [2021-12-06 19:43:03,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:43:03,897 INFO L93 Difference]: Finished difference Result 148 states and 162 transitions. [2021-12-06 19:43:03,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-12-06 19:43:03,897 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 58 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-12-06 19:43:03,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:43:03,898 INFO L225 Difference]: With dead ends: 148 [2021-12-06 19:43:03,898 INFO L226 Difference]: Without dead ends: 146 [2021-12-06 19:43:03,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 931 ImplicationChecksByTransitivity, 360.3s TimeCoverageRelationStatistics Valid=819, Invalid=3448, Unknown=31, NotChecked=258, Total=4556 [2021-12-06 19:43:03,900 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 70 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 575 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:43:03,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 198 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 225 Invalid, 0 Unknown, 575 Unchecked, 0.3s Time] [2021-12-06 19:43:03,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-12-06 19:43:03,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 123. [2021-12-06 19:43:03,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 122 states have (on average 1.1229508196721312) internal successors, (137), 122 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:43:03,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 137 transitions. [2021-12-06 19:43:03,911 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 137 transitions. Word has length 44 [2021-12-06 19:43:03,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:43:03,911 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 137 transitions. [2021-12-06 19:43:03,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 58 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:43:03,911 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 137 transitions. [2021-12-06 19:43:03,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 19:43:03,912 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:43:03,912 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:43:03,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-06 19:43:04,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:43:04,114 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:43:04,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:43:04,116 INFO L85 PathProgramCache]: Analyzing trace with hash -22665458, now seen corresponding path program 9 times [2021-12-06 19:43:04,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:43:04,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805325600] [2021-12-06 19:43:04,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:43:04,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:43:04,138 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:43:04,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1069497711] [2021-12-06 19:43:04,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 19:43:04,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:43:04,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:43:04,139 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:43:04,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-06 19:43:04,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-12-06 19:43:04,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:43:04,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 19:43:04,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:43:04,418 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-06 19:43:04,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:43:04,507 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-06 19:43:04,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:43:04,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805325600] [2021-12-06 19:43:04,508 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:43:04,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069497711] [2021-12-06 19:43:04,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069497711] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:43:04,508 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:43:04,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2021-12-06 19:43:04,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453613785] [2021-12-06 19:43:04,508 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:43:04,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-06 19:43:04,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:43:04,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-06 19:43:04,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-12-06 19:43:04,509 INFO L87 Difference]: Start difference. First operand 123 states and 137 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:43:05,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:43:05,012 INFO L93 Difference]: Finished difference Result 181 states and 193 transitions. [2021-12-06 19:43:05,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:43:05,013 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-12-06 19:43:05,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:43:05,014 INFO L225 Difference]: With dead ends: 181 [2021-12-06 19:43:05,014 INFO L226 Difference]: Without dead ends: 129 [2021-12-06 19:43:05,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2021-12-06 19:43:05,015 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 139 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:43:05,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 126 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:43:05,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-12-06 19:43:05,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 86. [2021-12-06 19:43:05,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.0705882352941176) internal successors, (91), 85 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:43:05,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2021-12-06 19:43:05,022 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 44 [2021-12-06 19:43:05,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:43:05,023 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2021-12-06 19:43:05,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:43:05,023 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2021-12-06 19:43:05,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 19:43:05,023 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:43:05,023 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:43:05,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-12-06 19:43:05,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-06 19:43:05,225 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:43:05,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:43:05,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1258986306, now seen corresponding path program 3 times [2021-12-06 19:43:05,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:43:05,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170283120] [2021-12-06 19:43:05,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:43:05,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:43:05,249 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:43:05,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [381525693] [2021-12-06 19:43:05,249 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 19:43:05,249 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:43:05,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:43:05,250 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:43:05,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470c23c7-601d-4eca-911f-04ade5f31fee/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-06 19:43:05,376 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-12-06 19:43:05,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:43:05,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 87 conjunts are in the unsatisfiable core [2021-12-06 19:43:05,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:43:05,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-06 19:43:05,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 11 [2021-12-06 19:43:05,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:43:05,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-06 19:43:05,460 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-12-06 19:43:05,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-06 19:43:05,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 26 [2021-12-06 19:43:05,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 26 [2021-12-06 19:43:05,848 INFO L354 Elim1Store]: treesize reduction 12, result has 7.7 percent of original size [2021-12-06 19:43:05,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 33 [2021-12-06 19:43:06,071 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:43:06,093 INFO L354 Elim1Store]: treesize reduction 49, result has 31.0 percent of original size [2021-12-06 19:43:06,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 49 [2021-12-06 19:43:06,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:43:06,341 INFO L354 Elim1Store]: treesize reduction 43, result has 29.5 percent of original size [2021-12-06 19:43:06,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 45 treesize of output 56 [2021-12-06 19:43:06,593 INFO L354 Elim1Store]: treesize reduction 69, result has 46.5 percent of original size [2021-12-06 19:43:06,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 66 treesize of output 99 [2021-12-06 19:43:09,908 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 19:43:09,984 INFO L354 Elim1Store]: treesize reduction 32, result has 50.0 percent of original size [2021-12-06 19:43:09,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 384 treesize of output 218 [2021-12-06 19:43:11,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:43:11,478 INFO L354 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2021-12-06 19:43:11,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 211 treesize of output 150 [2021-12-06 19:43:12,568 INFO L354 Elim1Store]: treesize reduction 64, result has 46.2 percent of original size [2021-12-06 19:43:12,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 454 treesize of output 279