./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/res2o.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/res2o.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0 --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 c8f420e2027982da4f1bb18a6387f830c2a1e2f24637d0451d3246965ba37a6d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:38:36,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:38:36,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:38:36,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:38:36,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:38:36,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:38:36,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:38:36,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:38:36,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:38:36,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:38:36,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:38:36,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:38:36,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:38:36,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:38:36,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:38:36,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:38:36,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:38:36,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:38:36,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:38:36,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:38:36,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:38:36,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:38:36,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:38:36,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:38:36,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:38:36,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:38:36,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:38:36,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:38:36,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:38:36,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:38:36,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:38:36,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:38:36,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:38:36,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:38:36,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:38:36,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:38:36,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:38:36,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:38:36,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:38:36,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:38:36,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:38:36,683 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 14:38:36,707 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:38:36,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:38:36,708 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:38:36,708 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:38:36,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:38:36,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:38:36,709 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:38:36,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:38:36,710 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:38:36,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:38:36,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:38:36,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:38:36,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:38:36,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:38:36,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:38:36,711 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:38:36,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:38:36,711 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:38:36,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:38:36,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:38:36,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:38:36,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:38:36,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:38:36,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:38:36,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:38:36,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:38:36,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:38:36,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:38:36,713 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:38:36,714 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:38:36,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:38:36,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:38:36,714 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_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8f420e2027982da4f1bb18a6387f830c2a1e2f24637d0451d3246965ba37a6d [2021-11-22 14:38:36,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:38:37,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:38:37,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:38:37,004 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:38:37,004 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:38:37,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/array-fpi/res2o.c [2021-11-22 14:38:37,083 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/data/2df4562b3/ef1df07f9d2e4dffbaf32993c82b544c/FLAGbdd10b957 [2021-11-22 14:38:37,513 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:38:37,513 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/sv-benchmarks/c/array-fpi/res2o.c [2021-11-22 14:38:37,520 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/data/2df4562b3/ef1df07f9d2e4dffbaf32993c82b544c/FLAGbdd10b957 [2021-11-22 14:38:37,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/data/2df4562b3/ef1df07f9d2e4dffbaf32993c82b544c [2021-11-22 14:38:37,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:38:37,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:38:37,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:38:37,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:38:37,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:38:37,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:38:37" (1/1) ... [2021-11-22 14:38:37,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29474c6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:37, skipping insertion in model container [2021-11-22 14:38:37,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:38:37" (1/1) ... [2021-11-22 14:38:37,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:38:37,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:38:38,108 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_0c1e0b29-0bc8-4496-8463-567dc79957cc/sv-benchmarks/c/array-fpi/res2o.c[588,601] [2021-11-22 14:38:38,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:38:38,157 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:38:38,174 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_0c1e0b29-0bc8-4496-8463-567dc79957cc/sv-benchmarks/c/array-fpi/res2o.c[588,601] [2021-11-22 14:38:38,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:38:38,216 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:38:38,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38 WrapperNode [2021-11-22 14:38:38,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:38:38,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:38:38,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:38:38,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:38:38,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,284 INFO L137 Inliner]: procedures = 17, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 113 [2021-11-22 14:38:38,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:38:38,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:38:38,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:38:38,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:38:38,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:38:38,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:38:38,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:38:38,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:38:38,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:38:38,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:38,358 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:38,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:38:38,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:38:38,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:38:38,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 14:38:38,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 14:38:38,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 14:38:38,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:38:38,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:38:38,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 14:38:38,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 14:38:38,478 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:38:38,479 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:38:38,651 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:38:38,657 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:38:38,657 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-22 14:38:38,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:38:38 BoogieIcfgContainer [2021-11-22 14:38:38,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:38:38,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:38:38,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:38:38,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:38:38,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:38:37" (1/3) ... [2021-11-22 14:38:38,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aac76b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:38:38, skipping insertion in model container [2021-11-22 14:38:38,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (2/3) ... [2021-11-22 14:38:38,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aac76b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:38:38, skipping insertion in model container [2021-11-22 14:38:38,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:38:38" (3/3) ... [2021-11-22 14:38:38,669 INFO L111 eAbstractionObserver]: Analyzing ICFG res2o.c [2021-11-22 14:38:38,674 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:38:38,675 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 14:38:38,749 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:38:38,771 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 [2021-11-22 14:38:38,787 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 14:38:38,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 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) [2021-11-22 14:38:38,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-22 14:38:38,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:38:38,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:38:38,816 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:38:38,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:38,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1780399656, now seen corresponding path program 1 times [2021-11-22 14:38:38,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:38,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30859839] [2021-11-22 14:38:38,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:38,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:38,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:38:38,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:38:38,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30859839] [2021-11-22 14:38:38,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30859839] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:38:38,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:38:38,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 14:38:38,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725562016] [2021-11-22 14:38:38,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:38:38,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 14:38:38,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:38:38,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 14:38:38,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 14:38:38,999 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 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 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2021-11-22 14:38:39,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:38:39,015 INFO L93 Difference]: Finished difference Result 56 states and 82 transitions. [2021-11-22 14:38:39,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 14:38:39,017 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 19 [2021-11-22 14:38:39,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:38:39,025 INFO L225 Difference]: With dead ends: 56 [2021-11-22 14:38:39,025 INFO L226 Difference]: Without dead ends: 26 [2021-11-22 14:38:39,028 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 [2021-11-22 14:38:39,032 INFO L933 BasicCegarLoop]: 36 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, 36 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 [2021-11-22 14:38:39,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:38:39,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-22 14:38:39,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-22 14:38:39,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 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) [2021-11-22 14:38:39,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2021-11-22 14:38:39,064 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 19 [2021-11-22 14:38:39,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:38:39,065 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-11-22 14:38:39,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2021-11-22 14:38:39,065 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2021-11-22 14:38:39,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-22 14:38:39,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:38:39,066 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:38:39,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 14:38:39,067 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:38:39,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:39,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1279549768, now seen corresponding path program 1 times [2021-11-22 14:38:39,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:39,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366096690] [2021-11-22 14:38:39,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:39,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:39,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:38:39,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:38:39,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366096690] [2021-11-22 14:38:39,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366096690] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:38:39,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:38:39,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 14:38:39,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042303146] [2021-11-22 14:38:39,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:38:39,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:38:39,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:38:39,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:38:39,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:38:39,212 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2021-11-22 14:38:39,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:38:39,335 INFO L93 Difference]: Finished difference Result 57 states and 72 transitions. [2021-11-22 14:38:39,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 14:38:39,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2021-11-22 14:38:39,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:38:39,337 INFO L225 Difference]: With dead ends: 57 [2021-11-22 14:38:39,337 INFO L226 Difference]: Without dead ends: 38 [2021-11-22 14:38:39,338 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 [2021-11-22 14:38:39,340 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 39 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:38:39,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 14 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:38:39,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-22 14:38:39,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2021-11-22 14:38:39,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 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) [2021-11-22 14:38:39,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2021-11-22 14:38:39,349 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 19 [2021-11-22 14:38:39,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:38:39,349 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2021-11-22 14:38:39,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2021-11-22 14:38:39,350 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2021-11-22 14:38:39,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-22 14:38:39,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:38:39,351 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:38:39,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 14:38:39,351 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:38:39,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:39,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1740145276, now seen corresponding path program 1 times [2021-11-22 14:38:39,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:39,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6911364] [2021-11-22 14:38:39,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:39,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:41,060 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:38:41,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:38:41,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6911364] [2021-11-22 14:38:41,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6911364] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:38:41,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549269601] [2021-11-22 14:38:41,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:41,063 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:38:41,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:41,069 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:38:41,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 14:38:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:41,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-22 14:38:41,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:41,306 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 [2021-11-22 14:38:41,327 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-22 14:38:41,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2021-11-22 14:38:41,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:41,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-22 14:38:41,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-22 14:38:41,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-22 14:38:42,194 INFO L354 Elim1Store]: treesize reduction 55, result has 11.3 percent of original size [2021-11-22 14:38:42,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 55 [2021-11-22 14:38:42,549 INFO L354 Elim1Store]: treesize reduction 100, result has 13.0 percent of original size [2021-11-22 14:38:42,550 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 7 case distinctions, treesize of input 74 treesize of output 63 [2021-11-22 14:38:42,987 INFO L354 Elim1Store]: treesize reduction 138, result has 13.8 percent of original size [2021-11-22 14:38:42,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 80 treesize of output 69 [2021-11-22 14:38:43,301 INFO L354 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2021-11-22 14:38:43,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 91 treesize of output 67 [2021-11-22 14:38:43,343 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:38:43,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:38:44,208 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-22 14:38:44,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 718 treesize of output 712 [2021-11-22 14:38:44,849 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:38:44,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549269601] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:38:44,850 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:38:44,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 36 [2021-11-22 14:38:44,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954579445] [2021-11-22 14:38:44,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:38:44,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-22 14:38:44,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:38:44,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-22 14:38:44,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=1031, Unknown=0, NotChecked=0, Total=1260 [2021-11-22 14:38:44,855 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 36 states, 36 states have (on average 2.111111111111111) internal successors, (76), 36 states have internal predecessors, (76), 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) [2021-11-22 14:38:45,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:38:45,330 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2021-11-22 14:38:45,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-22 14:38:45,330 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.111111111111111) internal successors, (76), 36 states have internal predecessors, (76), 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 31 [2021-11-22 14:38:45,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:38:45,332 INFO L225 Difference]: With dead ends: 49 [2021-11-22 14:38:45,332 INFO L226 Difference]: Without dead ends: 45 [2021-11-22 14:38:45,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 35 SyntacticMatches, 15 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=255, Invalid=1151, Unknown=0, NotChecked=0, Total=1406 [2021-11-22 14:38:45,335 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 39 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 14:38:45,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 103 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 234 Invalid, 0 Unknown, 50 Unchecked, 0.3s Time] [2021-11-22 14:38:45,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-22 14:38:45,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2021-11-22 14:38:45,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.2) internal successors, (48), 40 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) [2021-11-22 14:38:45,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2021-11-22 14:38:45,344 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 31 [2021-11-22 14:38:45,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:38:45,345 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2021-11-22 14:38:45,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.111111111111111) internal successors, (76), 36 states have internal predecessors, (76), 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) [2021-11-22 14:38:45,346 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2021-11-22 14:38:45,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-22 14:38:45,347 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:38:45,347 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:38:45,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:45,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:38:45,561 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:38:45,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:45,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1839245574, now seen corresponding path program 2 times [2021-11-22 14:38:45,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:45,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586517555] [2021-11-22 14:38:45,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:45,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:45,636 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 14:38:45,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:38:45,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586517555] [2021-11-22 14:38:45,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586517555] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:38:45,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135585950] [2021-11-22 14:38:45,643 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 14:38:45,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:38:45,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:45,652 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:38:45,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 14:38:45,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 14:38:45,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:38:45,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-22 14:38:45,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:45,812 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 14:38:45,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:38:45,912 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 14:38:45,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135585950] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:38:45,914 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:38:45,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2021-11-22 14:38:45,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499522715] [2021-11-22 14:38:45,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:38:45,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-22 14:38:45,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:38:45,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-22 14:38:45,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-22 14:38:45,917 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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) [2021-11-22 14:38:46,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:38:46,114 INFO L93 Difference]: Finished difference Result 116 states and 136 transitions. [2021-11-22 14:38:46,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 14:38:46,116 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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 33 [2021-11-22 14:38:46,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:38:46,117 INFO L225 Difference]: With dead ends: 116 [2021-11-22 14:38:46,117 INFO L226 Difference]: Without dead ends: 62 [2021-11-22 14:38:46,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2021-11-22 14:38:46,119 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 74 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 14:38:46,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 43 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 14:38:46,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-22 14:38:46,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 46. [2021-11-22 14:38:46,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 45 states have internal predecessors, (52), 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) [2021-11-22 14:38:46,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2021-11-22 14:38:46,139 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 33 [2021-11-22 14:38:46,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:38:46,139 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2021-11-22 14:38:46,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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) [2021-11-22 14:38:46,140 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2021-11-22 14:38:46,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 14:38:46,141 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:38:46,141 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:38:46,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:46,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:38:46,342 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:38:46,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:46,343 INFO L85 PathProgramCache]: Analyzing trace with hash -284383476, now seen corresponding path program 3 times [2021-11-22 14:38:46,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:46,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428311123] [2021-11-22 14:38:46,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:46,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:46,449 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 14:38:46,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:38:46,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428311123] [2021-11-22 14:38:46,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428311123] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:38:46,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246527674] [2021-11-22 14:38:46,450 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 14:38:46,450 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:38:46,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:46,462 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:38:46,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-22 14:38:46,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-22 14:38:46,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:38:46,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-22 14:38:46,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:46,658 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 14:38:46,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:38:46,752 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 14:38:46,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246527674] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:38:46,753 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:38:46,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2021-11-22 14:38:46,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667063403] [2021-11-22 14:38:46,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:38:46,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-22 14:38:46,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:38:46,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-22 14:38:46,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-22 14:38:46,758 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 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) [2021-11-22 14:38:46,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:38:46,934 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2021-11-22 14:38:46,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 14:38:46,935 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 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 39 [2021-11-22 14:38:46,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:38:46,935 INFO L225 Difference]: With dead ends: 57 [2021-11-22 14:38:46,936 INFO L226 Difference]: Without dead ends: 49 [2021-11-22 14:38:46,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 75 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-11-22 14:38:46,937 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 66 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:38:46,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 31 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:38:46,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-22 14:38:46,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 44. [2021-11-22 14:38:46,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 43 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:46,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2021-11-22 14:38:46,947 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 39 [2021-11-22 14:38:46,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:38:46,947 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2021-11-22 14:38:46,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 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) [2021-11-22 14:38:46,948 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2021-11-22 14:38:46,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-22 14:38:46,949 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:38:46,949 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:38:46,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-22 14:38:47,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:38:47,165 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:38:47,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:47,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1410382416, now seen corresponding path program 4 times [2021-11-22 14:38:47,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:47,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205503574] [2021-11-22 14:38:47,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:47,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:50,802 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:38:50,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:38:50,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205503574] [2021-11-22 14:38:50,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205503574] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:38:50,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744711543] [2021-11-22 14:38:50,803 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-22 14:38:50,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:38:50,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:50,804 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:38:50,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-22 14:38:50,861 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-22 14:38:50,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:38:50,863 WARN L261 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-22 14:38:50,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:50,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:50,901 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-22 14:38:50,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-11-22 14:38:50,921 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 [2021-11-22 14:38:51,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:51,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 14:38:51,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:51,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:51,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-22 14:38:51,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:51,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:51,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-11-22 14:38:51,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:51,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:51,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:51,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2021-11-22 14:38:52,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:52,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:52,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:52,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:52,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-22 14:38:52,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:52,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:52,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:52,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:52,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:52,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 74 [2021-11-22 14:38:52,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:52,922 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:38:52,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:52,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:52,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:52,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:52,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 83 [2021-11-22 14:38:53,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:53,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:53,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:53,222 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:38:53,223 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:38:53,243 INFO L354 Elim1Store]: treesize reduction 108, result has 12.2 percent of original size [2021-11-22 14:38:53,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 92 treesize of output 90 [2021-11-22 14:38:53,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:53,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:53,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:53,636 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:38:53,639 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:38:53,640 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:38:53,661 INFO L354 Elim1Store]: treesize reduction 108, result has 12.2 percent of original size [2021-11-22 14:38:53,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 108 treesize of output 98 [2021-11-22 14:38:53,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:53,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:53,955 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:38:53,996 INFO L354 Elim1Store]: treesize reduction 200, result has 12.7 percent of original size [2021-11-22 14:38:53,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 105 treesize of output 99 [2021-11-22 14:38:54,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:54,582 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:38:54,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:38:54,585 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:38:54,630 INFO L354 Elim1Store]: treesize reduction 200, result has 12.7 percent of original size [2021-11-22 14:38:54,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 109 treesize of output 103 [2021-11-22 14:38:55,014 INFO L354 Elim1Store]: treesize reduction 276, result has 13.5 percent of original size [2021-11-22 14:38:55,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 114 treesize of output 104 [2021-11-22 14:38:55,397 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-22 14:38:55,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 114 treesize of output 78 [2021-11-22 14:38:55,467 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:38:55,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:39:13,255 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:39:13,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744711543] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:39:13,255 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:39:13,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 27, 27] total 82 [2021-11-22 14:39:13,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879042265] [2021-11-22 14:39:13,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:39:13,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2021-11-22 14:39:13,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:39:13,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-11-22 14:39:13,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=658, Invalid=5984, Unknown=0, NotChecked=0, Total=6642 [2021-11-22 14:39:13,265 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 82 states, 82 states have (on average 1.4146341463414633) internal successors, (116), 82 states have internal predecessors, (116), 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) [2021-11-22 14:39:41,027 WARN L227 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 242 DAG size of output: 112 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:40:16,170 WARN L227 SmtUtils]: Spent 6.97s on a formula simplification. DAG size of input: 247 DAG size of output: 117 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:40:46,379 WARN L227 SmtUtils]: Spent 10.84s on a formula simplification. DAG size of input: 183 DAG size of output: 171 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:41:19,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:41:19,071 INFO L93 Difference]: Finished difference Result 85 states and 97 transitions. [2021-11-22 14:41:19,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-22 14:41:19,071 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 1.4146341463414633) internal successors, (116), 82 states have internal predecessors, (116), 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 43 [2021-11-22 14:41:19,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:41:19,073 INFO L225 Difference]: With dead ends: 85 [2021-11-22 14:41:19,073 INFO L226 Difference]: Without dead ends: 81 [2021-11-22 14:41:19,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4143 ImplicationChecksByTransitivity, 136.9s TimeCoverageRelationStatistics Valid=1442, Invalid=10548, Unknown=0, NotChecked=0, Total=11990 [2021-11-22 14:41:19,079 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 87 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 150 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-22 14:41:19,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 159 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [309 Valid, 802 Invalid, 0 Unknown, 150 Unchecked, 9.6s Time] [2021-11-22 14:41:19,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-22 14:41:19,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 55. [2021-11-22 14:41:19,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.1481481481481481) internal successors, (62), 54 states have internal predecessors, (62), 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) [2021-11-22 14:41:19,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2021-11-22 14:41:19,092 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 43 [2021-11-22 14:41:19,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:41:19,092 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2021-11-22 14:41:19,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 1.4146341463414633) internal successors, (116), 82 states have internal predecessors, (116), 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) [2021-11-22 14:41:19,093 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2021-11-22 14:41:19,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-22 14:41:19,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:41:19,094 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:41:19,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-22 14:41:19,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:41:19,320 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:41:19,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:41:19,321 INFO L85 PathProgramCache]: Analyzing trace with hash -313453870, now seen corresponding path program 5 times [2021-11-22 14:41:19,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:41:19,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921507762] [2021-11-22 14:41:19,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:41:19,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:41:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:41:19,400 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-22 14:41:19,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:41:19,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921507762] [2021-11-22 14:41:19,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921507762] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:41:19,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035273743] [2021-11-22 14:41:19,401 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-22 14:41:19,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:41:19,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:41:19,403 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:41:19,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-22 14:41:19,656 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-11-22 14:41:19,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:41:19,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 14:41:19,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:41:19,809 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-22 14:41:19,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:41:19,914 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-22 14:41:19,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035273743] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:41:19,915 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:41:19,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2021-11-22 14:41:19,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335165749] [2021-11-22 14:41:19,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:41:19,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-22 14:41:19,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:41:19,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-22 14:41:19,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2021-11-22 14:41:19,917 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 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) [2021-11-22 14:41:20,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:41:20,423 INFO L93 Difference]: Finished difference Result 133 states and 154 transitions. [2021-11-22 14:41:20,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 14:41:20,425 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 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) Word has length 45 [2021-11-22 14:41:20,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:41:20,426 INFO L225 Difference]: With dead ends: 133 [2021-11-22 14:41:20,426 INFO L226 Difference]: Without dead ends: 62 [2021-11-22 14:41:20,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=198, Invalid=858, Unknown=0, NotChecked=0, Total=1056 [2021-11-22 14:41:20,428 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 179 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 14:41:20,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 57 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 14:41:20,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-22 14:41:20,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2021-11-22 14:41:20,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 55 states have internal predecessors, (61), 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) [2021-11-22 14:41:20,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2021-11-22 14:41:20,440 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 45 [2021-11-22 14:41:20,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:41:20,440 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2021-11-22 14:41:20,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 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) [2021-11-22 14:41:20,441 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2021-11-22 14:41:20,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-22 14:41:20,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:41:20,442 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:41:20,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-22 14:41:20,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:41:20,648 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:41:20,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:41:20,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1101638372, now seen corresponding path program 6 times [2021-11-22 14:41:20,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:41:20,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407408110] [2021-11-22 14:41:20,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:41:20,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:41:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:41:26,044 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:41:26,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:41:26,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407408110] [2021-11-22 14:41:26,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407408110] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:41:26,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083358415] [2021-11-22 14:41:26,045 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-22 14:41:26,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:41:26,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:41:26,046 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:41:26,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e0b29-0bc8-4496-8463-567dc79957cc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-22 14:41:26,214 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-11-22 14:41:26,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:41:26,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 77 conjunts are in the unsatisfiable core [2021-11-22 14:41:26,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:41:26,250 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 [2021-11-22 14:41:26,256 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-22 14:41:26,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2021-11-22 14:41:26,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:26,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 14:41:26,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:26,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-11-22 14:41:26,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:26,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:26,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 29 [2021-11-22 14:41:26,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:26,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2021-11-22 14:41:26,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:26,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:26,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:26,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:26,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:26,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 44 [2021-11-22 14:41:26,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:26,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:26,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:26,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:26,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2021-11-22 14:41:27,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:27,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:27,144 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-22 14:41:27,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 67 [2021-11-22 14:41:27,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:27,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:27,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:27,442 INFO L354 Elim1Store]: treesize reduction 38, result has 15.6 percent of original size [2021-11-22 14:41:27,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 82 [2021-11-22 14:41:28,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:28,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:28,133 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-22 14:41:28,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 104 [2021-11-22 14:41:28,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:28,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:28,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:28,570 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-22 14:41:28,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 114 [2021-11-22 14:41:29,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:29,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:29,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:29,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:29,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:29,009 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-22 14:41:29,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 12 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 124 [2021-11-22 14:41:29,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:29,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:29,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:29,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:29,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:29,571 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-22 14:41:29,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 12 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 129 [2021-11-22 14:41:29,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:29,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:29,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:29,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:29,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:29,869 INFO L354 Elim1Store]: treesize reduction 83, result has 1.2 percent of original size [2021-11-22 14:41:29,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 12 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 140 [2021-11-22 14:41:30,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:30,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:30,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:30,319 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:30,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:30,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:30,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:30,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:30,327 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:30,424 INFO L354 Elim1Store]: treesize reduction 661, result has 6.5 percent of original size [2021-11-22 14:41:30,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 9 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 53 case distinctions, treesize of input 145 treesize of output 162 [2021-11-22 14:41:31,684 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:31,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:31,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:31,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:31,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:31,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:31,690 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:31,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:31,692 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:31,810 INFO L354 Elim1Store]: treesize reduction 729, result has 5.0 percent of original size [2021-11-22 14:41:31,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 7 disjoint index pairs (out of 78 index pairs), introduced 12 new quantified variables, introduced 60 case distinctions, treesize of input 158 treesize of output 167 [2021-11-22 14:41:32,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:32,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:32,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:32,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:32,310 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:32,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:32,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:32,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:32,313 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:32,313 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:32,418 INFO L354 Elim1Store]: treesize reduction 547, result has 6.0 percent of original size [2021-11-22 14:41:32,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 7 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 47 case distinctions, treesize of input 154 treesize of output 171 [2021-11-22 14:41:32,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:32,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:32,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:32,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:32,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:32,988 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:32,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:32,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:32,990 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:32,991 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:33,240 INFO L354 Elim1Store]: treesize reduction 1018, result has 5.9 percent of original size [2021-11-22 14:41:33,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 5 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 81 case distinctions, treesize of input 175 treesize of output 171 [2021-11-22 14:41:34,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:34,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:34,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:34,356 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:34,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:34,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:34,359 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:34,359 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:34,500 INFO L354 Elim1Store]: treesize reduction 596, result has 8.0 percent of original size [2021-11-22 14:41:34,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 56 case distinctions, treesize of input 156 treesize of output 156 [2021-11-22 14:41:34,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:34,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:34,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:34,961 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:34,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:34,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:34,963 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:34,963 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:35,063 INFO L354 Elim1Store]: treesize reduction 562, result has 8.0 percent of original size [2021-11-22 14:41:35,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 5 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 54 case distinctions, treesize of input 140 treesize of output 154 [2021-11-22 14:41:35,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:35,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:35,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:35,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 14:41:35,599 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 14:41:35,802 INFO L354 Elim1Store]: treesize reduction 860, result has 9.5 percent of original size [2021-11-22 14:41:35,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 5 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 77 case distinctions, treesize of input 147 treesize of output 164 [2021-11-22 14:41:38,147 INFO L354 Elim1Store]: treesize reduction 558, result has 1.2 percent of original size [2021-11-22 14:41:38,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 3 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 173 treesize of output 101 [2021-11-22 14:41:38,261 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:41:38,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:41:39,933 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_127| Int)) (or (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_127| 1)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_127|) c_~N~0) (<= (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse1 (select .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (.cse4 (* |v_ULTIMATE.start_main_~i~0#1_127| 4))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2))) |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse4)))) (+ .cse0 .cse1 .cse2 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse1 .cse2))) |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse4 4)))))) (* 3 c_~N~0)))) is different from false [2021-11-22 14:41:40,920 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_127| Int)) (or (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_127| 1)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_127|) c_~N~0) (<= (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse1 (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse4 (* |v_ULTIMATE.start_main_~i~0#1_127| 4))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse3))) |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse4)))) (+ .cse0 .cse1 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse1 .cse3))) |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse4 4)) .cse3)))) (* 3 c_~N~0)))) is different from false [2021-11-22 14:45:27,873 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_136| Int) (|v_ULTIMATE.start_main_~i~0#1_127| Int) (|v_ULTIMATE.start_main_~i~0#1_130| Int)) (or (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_127| 1)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_127|) c_~N~0) (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_136| 1)) (< 2 |v_ULTIMATE.start_main_~i~0#1_130|) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_136|) c_~N~0) (< (+ |v_ULTIMATE.start_main_~i~0#1_130| 1) c_~N~0) (<= (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| (let ((.cse13 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse13) 1) (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse13 4) 1))))) (let ((.cse10 (select .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse3 (select .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse7 (select (select .cse9 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse12 (* |v_ULTIMATE.start_main_~i~0#1_136| 4))) (let ((.cse0 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse7))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse12)))) (let ((.cse6 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse3 .cse7))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse12 4)))) (let ((.cse8 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse3 .cse6 .cse7))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse1 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse3 .cse6 .cse7 .cse8))) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 4)))) (let ((.cse2 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse1 .cse3 .cse6 .cse7 .cse8))) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_130| 4))))) (let ((.cse4 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse1 .cse2 .cse3 .cse6 .cse7 .cse8))) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse11 (* |v_ULTIMATE.start_main_~i~0#1_127| 4))) (let ((.cse5 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse8))) |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse11)))) (+ .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8))) |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse11 4))))))))))))) (* 3 c_~N~0)))) is different from false [2021-11-22 14:46:53,081 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_136| Int) (|v_ULTIMATE.start_main_~i~0#1_127| Int) (|v_ULTIMATE.start_main_~i~0#1_130| Int)) (or (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_127| 1)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_127|) c_~N~0) (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_136| 1)) (< 2 |v_ULTIMATE.start_main_~i~0#1_130|) (<= (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset| 1) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 4) 1) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) 1)))) (let ((.cse8 (select .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse5 (select (select .cse7 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse9 (select .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse12 (* |v_ULTIMATE.start_main_~i~0#1_136| 4))) (let ((.cse4 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse5 .cse9))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse12)))) (let ((.cse2 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse4 .cse5 .cse9))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse12 4)))) (let ((.cse3 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse4 .cse5 .cse9))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse6 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3 .cse4 .cse5 .cse9))) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 4)))) (let ((.cse1 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3 .cse4 .cse5 .cse6 .cse9))) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_130| 4))))) (let ((.cse10 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse9))) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse11 (* |v_ULTIMATE.start_main_~i~0#1_127| 4))) (let ((.cse0 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse9 .cse10))) |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse11)))) (+ .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse9 .cse10))) |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse11 4)) .cse9 .cse10))))))))))) (* 3 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_136|) c_~N~0) (< (+ |v_ULTIMATE.start_main_~i~0#1_130| 1) c_~N~0))) is different from false [2021-11-22 14:50:03,809 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_136| Int) (|v_ULTIMATE.start_main_~i~0#1_127| Int) (|v_ULTIMATE.start_main_~i~0#1_145| Int) (|v_ULTIMATE.start_main_~i~0#1_130| Int)) (or (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_127| 1)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_145|) c_~N~0) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_127|) c_~N~0) (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_136| 1)) (< 2 |v_ULTIMATE.start_main_~i~0#1_130|) (<= (let ((.cse1 (let ((.cse13 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (let ((.cse14 (* |v_ULTIMATE.start_main_~i~0#1_145| 4))) (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) 1) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse14) 1) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse14 4) 1))))) (store .cse13 |c_ULTIMATE.start_main_~c~0#1.base| (store (store (store (select .cse13 |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset| 1) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 4) 1) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) 1))))) (let ((.cse2 (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse6 (select (select .cse1 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse8 (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse12 (* |v_ULTIMATE.start_main_~i~0#1_136| 4))) (let ((.cse9 (select (select (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse6 .cse8))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse12)))) (let ((.cse7 (select (select (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse6 .cse8 .cse9))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse12 4)))) (let ((.cse0 (select (select (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse6 .cse7 .cse8 .cse9))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse4 (select (select (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse6 .cse7 .cse8 .cse9))) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 4)))) (let ((.cse3 (select (select (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse4 .cse6 .cse7 .cse8 .cse9))) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_130| 4))))) (let ((.cse5 (select (select (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse3 .cse4 .cse6 .cse7 .cse8 .cse9))) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse11 (* |v_ULTIMATE.start_main_~i~0#1_127| 4))) (let ((.cse10 (select (select (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9))) |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse11)))) (+ .cse0 (select (select (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10))) |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse11 4)) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10))))))))))) (* 3 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_136|) c_~N~0) (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_145| 1)) (< (+ |v_ULTIMATE.start_main_~i~0#1_130| 1) c_~N~0))) is different from false [2021-11-22 14:50:27,858 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_136| Int) (|v_ULTIMATE.start_main_~i~0#1_127| Int) (|v_ULTIMATE.start_main_~i~0#1_145| Int) (|v_ULTIMATE.start_main_~i~0#1_130| Int)) (or (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_127| 1)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_145|) c_~N~0) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_127|) c_~N~0) (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_136| 1)) (< 2 |v_ULTIMATE.start_main_~i~0#1_130|) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_136|) c_~N~0) (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_145| 1)) (< (+ |v_ULTIMATE.start_main_~i~0#1_130| 1) c_~N~0) (<= (let ((.cse2 (let ((.cse13 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (let ((.cse14 (* |v_ULTIMATE.start_main_~i~0#1_145| 4))) (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse14) 1) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse14 4) 1))))) (store .cse13 |c_ULTIMATE.start_main_~c~0#1.base| (store (store (store (select .cse13 |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset| 1) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 4) 1) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) 1))))) (let ((.cse3 (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse5 (select (select .cse2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse6 (select .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse12 (* |v_ULTIMATE.start_main_~i~0#1_136| 4))) (let ((.cse7 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse5 .cse6))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse12)))) (let ((.cse4 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse5 .cse6 .cse7))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse12 4)))) (let ((.cse0 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse4 .cse5 .cse6 .cse7))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse10 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse4 .cse5 .cse6 .cse7))) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 4)))) (let ((.cse1 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse4 .cse5 .cse6 .cse7 .cse10))) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_130| 4))))) (let ((.cse9 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse1 .cse4 .cse5 .cse6 .cse7 .cse10))) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse11 (* |v_ULTIMATE.start_main_~i~0#1_127| 4))) (let ((.cse8 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse1 .cse4 .cse5 .cse6 .cse7 .cse9 .cse10))) |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse11)))) (+ .cse0 .cse1 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse1 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10))) |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse11 4)) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10))))))))))) (* 3 c_~N~0)))) is different from false [2021-11-22 14:52:49,545 WARN L227 SmtUtils]: Spent 22.46s on a formula simplification that was a NOOP. DAG size: 110 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)