./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/sina4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/sina4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G --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 933eff495d93b07d12af9180ab5b75cc35fb173187f8af9883307194e1e7fea3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:34:25,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:34:25,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:34:25,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:34:25,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:34:25,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:34:25,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:34:25,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:34:25,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:34:25,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:34:25,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:34:25,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:34:25,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:34:25,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:34:25,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:34:25,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:34:25,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:34:25,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:34:25,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:34:25,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:34:25,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:34:25,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:34:25,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:34:25,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:34:25,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:34:25,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:34:25,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:34:25,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:34:25,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:34:25,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:34:25,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:34:25,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:34:25,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:34:25,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:34:25,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:34:25,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:34:25,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:34:25,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:34:25,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:34:25,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:34:25,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:34:25,688 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 13:34:25,732 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:34:25,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:34:25,733 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:34:25,733 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:34:25,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:34:25,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:34:25,735 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:34:25,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:34:25,735 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:34:25,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:34:25,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:34:25,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:34:25,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:34:25,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:34:25,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:34:25,737 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:34:25,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:34:25,737 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:34:25,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:34:25,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:34:25,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:34:25,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:34:25,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:34:25,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:34:25,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:34:25,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:34:25,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:34:25,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:34:25,740 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:34:25,740 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:34:25,740 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:34:25,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:34:25,741 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_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 933eff495d93b07d12af9180ab5b75cc35fb173187f8af9883307194e1e7fea3 [2021-11-23 13:34:26,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:34:26,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:34:26,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:34:26,030 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:34:26,031 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:34:26,032 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/array-fpi/sina4.c [2021-11-23 13:34:26,102 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/data/a070ac588/ef030cb0be854d8db6bf4b5e2afafbe4/FLAG03717e7da [2021-11-23 13:34:26,632 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:34:26,633 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/sv-benchmarks/c/array-fpi/sina4.c [2021-11-23 13:34:26,640 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/data/a070ac588/ef030cb0be854d8db6bf4b5e2afafbe4/FLAG03717e7da [2021-11-23 13:34:26,998 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/data/a070ac588/ef030cb0be854d8db6bf4b5e2afafbe4 [2021-11-23 13:34:27,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:34:27,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:34:27,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:34:27,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:34:27,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:34:27,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:34:26" (1/1) ... [2021-11-23 13:34:27,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@523e354a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:27, skipping insertion in model container [2021-11-23 13:34:27,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:34:26" (1/1) ... [2021-11-23 13:34:27,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:34:27,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:34:27,232 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_191c5fd9-5727-4c23-9921-ec706b0d87d8/sv-benchmarks/c/array-fpi/sina4.c[588,601] [2021-11-23 13:34:27,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:34:27,301 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:34:27,315 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_191c5fd9-5727-4c23-9921-ec706b0d87d8/sv-benchmarks/c/array-fpi/sina4.c[588,601] [2021-11-23 13:34:27,344 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:34:27,358 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:34:27,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:27 WrapperNode [2021-11-23 13:34:27,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:34:27,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:34:27,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:34:27,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:34:27,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:27" (1/1) ... [2021-11-23 13:34:27,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:27" (1/1) ... [2021-11-23 13:34:27,430 INFO L137 Inliner]: procedures = 17, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2021-11-23 13:34:27,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:34:27,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:34:27,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:34:27,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:34:27,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:27" (1/1) ... [2021-11-23 13:34:27,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:27" (1/1) ... [2021-11-23 13:34:27,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:27" (1/1) ... [2021-11-23 13:34:27,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:27" (1/1) ... [2021-11-23 13:34:27,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:27" (1/1) ... [2021-11-23 13:34:27,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:27" (1/1) ... [2021-11-23 13:34:27,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:27" (1/1) ... [2021-11-23 13:34:27,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:34:27,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:34:27,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:34:27,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:34:27,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:27" (1/1) ... [2021-11-23 13:34:27,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:34:27,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:27,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:27,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:34:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:34:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:34:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:34:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:34:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 13:34:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:34:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:34:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:34:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:34:27,669 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:34:27,670 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:34:27,842 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:34:27,849 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:34:27,850 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-23 13:34:27,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:34:27 BoogieIcfgContainer [2021-11-23 13:34:27,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:34:27,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:34:27,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:34:27,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:34:27,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:34:26" (1/3) ... [2021-11-23 13:34:27,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c790bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:34:27, skipping insertion in model container [2021-11-23 13:34:27,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:27" (2/3) ... [2021-11-23 13:34:27,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c790bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:34:27, skipping insertion in model container [2021-11-23 13:34:27,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:34:27" (3/3) ... [2021-11-23 13:34:27,862 INFO L111 eAbstractionObserver]: Analyzing ICFG sina4.c [2021-11-23 13:34:27,868 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:34:27,868 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 13:34:27,946 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:34:27,956 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 [2021-11-23 13:34:27,956 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 13:34:27,975 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:27,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 13:34:27,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:34:27,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:34:27,984 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:34:28,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:28,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1389277550, now seen corresponding path program 1 times [2021-11-23 13:34:28,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:28,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010933490] [2021-11-23 13:34:28,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:28,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:34:28,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:34:28,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:34:28,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010933490] [2021-11-23 13:34:28,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010933490] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:34:28,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:34:28,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:34:28,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369504029] [2021-11-23 13:34:28,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:34:28,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:34:28,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:34:28,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:34:28,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:34:28,267 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:28,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:34:28,297 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2021-11-23 13:34:28,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:34:28,300 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-23 13:34:28,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:34:28,310 INFO L225 Difference]: With dead ends: 50 [2021-11-23 13:34:28,311 INFO L226 Difference]: Without dead ends: 23 [2021-11-23 13:34:28,315 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 [2021-11-23 13:34:28,326 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:34:28,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:34:28,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-23 13:34:28,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-11-23 13:34:28,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:28,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-11-23 13:34:28,382 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16 [2021-11-23 13:34:28,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:34:28,384 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-11-23 13:34:28,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:28,385 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-11-23 13:34:28,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 13:34:28,386 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:34:28,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:34:28,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:34:28,388 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:34:28,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:28,394 INFO L85 PathProgramCache]: Analyzing trace with hash 796930410, now seen corresponding path program 1 times [2021-11-23 13:34:28,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:28,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785281000] [2021-11-23 13:34:28,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:28,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:34:28,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:34:28,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:34:28,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785281000] [2021-11-23 13:34:28,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785281000] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:34:28,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:34:28,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:34:28,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093097379] [2021-11-23 13:34:28,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:34:28,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:34:28,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:34:28,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:34:28,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:34:28,554 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:28,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:34:28,667 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2021-11-23 13:34:28,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:34:28,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-23 13:34:28,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:34:28,669 INFO L225 Difference]: With dead ends: 53 [2021-11-23 13:34:28,670 INFO L226 Difference]: Without dead ends: 37 [2021-11-23 13:34:28,670 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 [2021-11-23 13:34:28,672 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 41 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:34:28,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 17 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:34:28,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-23 13:34:28,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2021-11-23 13:34:28,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:28,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2021-11-23 13:34:28,682 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2021-11-23 13:34:28,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:34:28,683 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-11-23 13:34:28,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:28,683 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2021-11-23 13:34:28,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 13:34:28,684 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:34:28,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:34:28,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:34:28,685 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:34:28,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:28,686 INFO L85 PathProgramCache]: Analyzing trace with hash 495241442, now seen corresponding path program 1 times [2021-11-23 13:34:28,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:28,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771615715] [2021-11-23 13:34:28,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:28,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:34:29,788 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:34:29,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:34:29,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771615715] [2021-11-23 13:34:29,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771615715] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:34:29,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698892321] [2021-11-23 13:34:29,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:29,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:34:29,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:29,793 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:34:29,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 13:34:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:34:29,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 13:34:29,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:34:29,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-23 13:34:30,013 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 [2021-11-23 13:34:30,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:34:30,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 13:34:30,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-11-23 13:34:30,540 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-11-23 13:34:30,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 27 [2021-11-23 13:34:30,894 INFO L354 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2021-11-23 13:34:30,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 48 [2021-11-23 13:34:31,829 INFO L354 Elim1Store]: treesize reduction 12, result has 63.6 percent of original size [2021-11-23 13:34:31,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 83 treesize of output 75 [2021-11-23 13:34:31,876 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:34:31,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:34:45,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 52 [2021-11-23 13:34:45,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:34:45,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698892321] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:34:45,221 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:34:45,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 34 [2021-11-23 13:34:45,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37670335] [2021-11-23 13:34:45,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:34:45,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-23 13:34:45,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:34:45,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-23 13:34:45,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=973, Unknown=4, NotChecked=0, Total=1122 [2021-11-23 13:34:45,229 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 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) [2021-11-23 13:34:45,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:34:45,775 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2021-11-23 13:34:45,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 13:34:45,777 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 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 24 [2021-11-23 13:34:45,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:34:45,778 INFO L225 Difference]: With dead ends: 53 [2021-11-23 13:34:45,778 INFO L226 Difference]: Without dead ends: 51 [2021-11-23 13:34:45,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 25 SyntacticMatches, 9 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=169, Invalid=1087, Unknown=4, NotChecked=0, Total=1260 [2021-11-23 13:34:45,781 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 27 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:34:45,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 132 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 276 Invalid, 0 Unknown, 44 Unchecked, 0.4s Time] [2021-11-23 13:34:45,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-23 13:34:45,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2021-11-23 13:34:45,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 43 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) [2021-11-23 13:34:45,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2021-11-23 13:34:45,793 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 24 [2021-11-23 13:34:45,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:34:45,794 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2021-11-23 13:34:45,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 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) [2021-11-23 13:34:45,794 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2021-11-23 13:34:45,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 13:34:45,796 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:34:45,796 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:34:45,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:46,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:34:46,016 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:34:46,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:46,017 INFO L85 PathProgramCache]: Analyzing trace with hash 831040416, now seen corresponding path program 2 times [2021-11-23 13:34:46,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:46,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096341603] [2021-11-23 13:34:46,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:46,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:34:46,134 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:34:46,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:34:46,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096341603] [2021-11-23 13:34:46,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096341603] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:34:46,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144772237] [2021-11-23 13:34:46,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:34:46,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:34:46,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:46,140 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:34:46,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 13:34:46,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 13:34:46,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:34:46,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 13:34:46,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:34:46,323 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:34:46,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:34:46,416 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:34:46,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144772237] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:34:46,418 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:34:46,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2021-11-23 13:34:46,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576338887] [2021-11-23 13:34:46,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:34:46,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 13:34:46,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:34:46,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 13:34:46,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-23 13:34:46,423 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:46,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:34:46,645 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2021-11-23 13:34:46,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:34:46,647 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-23 13:34:46,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:34:46,648 INFO L225 Difference]: With dead ends: 101 [2021-11-23 13:34:46,649 INFO L226 Difference]: Without dead ends: 66 [2021-11-23 13:34:46,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:34:46,650 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 84 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:34:46,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 46 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:34:46,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-23 13:34:46,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 46. [2021-11-23 13:34:46,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 45 states have internal predecessors, (53), 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) [2021-11-23 13:34:46,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2021-11-23 13:34:46,671 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 26 [2021-11-23 13:34:46,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:34:46,671 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2021-11-23 13:34:46,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:46,673 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2021-11-23 13:34:46,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 13:34:46,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:34:46,676 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:34:46,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:46,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:34:46,904 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:34:46,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:46,905 INFO L85 PathProgramCache]: Analyzing trace with hash -587916192, now seen corresponding path program 3 times [2021-11-23 13:34:46,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:46,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942930887] [2021-11-23 13:34:46,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:46,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:34:46,982 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:34:46,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:34:46,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942930887] [2021-11-23 13:34:46,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942930887] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:34:46,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960152192] [2021-11-23 13:34:46,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 13:34:46,983 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:34:46,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:46,984 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:34:47,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 13:34:47,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-23 13:34:47,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:34:47,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 13:34:47,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:34:47,157 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:34:47,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:34:47,227 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:34:47,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960152192] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:34:47,227 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:34:47,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2021-11-23 13:34:47,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469138530] [2021-11-23 13:34:47,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:34:47,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 13:34:47,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:34:47,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 13:34:47,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-23 13:34:47,230 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 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) [2021-11-23 13:34:47,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:34:47,416 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2021-11-23 13:34:47,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:34:47,416 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-23 13:34:47,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:34:47,417 INFO L225 Difference]: With dead ends: 63 [2021-11-23 13:34:47,417 INFO L226 Difference]: Without dead ends: 50 [2021-11-23 13:34:47,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-11-23 13:34:47,419 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 88 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:34:47,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 47 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:34:47,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-23 13:34:47,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2021-11-23 13:34:47,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 34 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:47,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2021-11-23 13:34:47,425 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 26 [2021-11-23 13:34:47,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:34:47,426 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2021-11-23 13:34:47,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 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) [2021-11-23 13:34:47,426 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2021-11-23 13:34:47,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 13:34:47,427 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:34:47,428 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:34:47,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:47,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:34:47,628 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:34:47,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:47,629 INFO L85 PathProgramCache]: Analyzing trace with hash -826292134, now seen corresponding path program 4 times [2021-11-23 13:34:47,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:47,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733900643] [2021-11-23 13:34:47,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:47,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:34:49,820 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:34:49,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:34:49,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733900643] [2021-11-23 13:34:49,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733900643] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:34:49,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280170552] [2021-11-23 13:34:49,821 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 13:34:49,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:34:49,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:49,823 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:34:49,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 13:34:49,889 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 13:34:49,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:34:49,891 WARN L261 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-23 13:34:49,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:34:49,929 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 [2021-11-23 13:34:50,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:34:50,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 13:34:50,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:34:50,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:34:50,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 13:34:50,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:34:50,652 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:34:50,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:34:50,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2021-11-23 13:34:50,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:34:50,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:34:50,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-11-23 13:34:51,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:34:51,236 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:34:51,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:34:51,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 41 [2021-11-23 13:34:51,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:34:51,508 INFO L354 Elim1Store]: treesize reduction 57, result has 10.9 percent of original size [2021-11-23 13:34:51,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 42 [2021-11-23 13:34:51,883 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:34:51,888 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:34:51,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:34:51,935 INFO L354 Elim1Store]: treesize reduction 111, result has 23.4 percent of original size [2021-11-23 13:34:51,936 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 9 case distinctions, treesize of input 66 treesize of output 74 [2021-11-23 13:34:52,425 INFO L354 Elim1Store]: treesize reduction 226, result has 24.2 percent of original size [2021-11-23 13:34:52,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 74 treesize of output 115 [2021-11-23 13:34:57,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2021-11-23 13:34:57,281 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:34:57,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:34:58,194 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_69| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_69| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= (select (let ((.cse0 (* |v_ULTIMATE.start_main_~i~0#1_69| 8))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse0) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse0)) 1))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)))) is different from false [2021-11-23 13:35:00,218 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_69| Int) (|ULTIMATE.start_main_~b~0#1.base| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_69| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= (select (let ((.cse0 (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (store (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse2) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2)) 1)))) (.cse1 (* |v_ULTIMATE.start_main_~i~0#1_69| 8))) (store .cse0 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse1) (+ (select (select (store |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) 1))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)))) is different from false [2021-11-23 13:35:08,459 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2021-11-23 13:35:08,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280170552] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:35:08,460 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:35:08,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 22, 22] total 65 [2021-11-23 13:35:08,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337738949] [2021-11-23 13:35:08,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:35:08,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-11-23 13:35:08,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:35:08,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-11-23 13:35:08,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=3593, Unknown=2, NotChecked=246, Total=4160 [2021-11-23 13:35:08,465 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 65 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 65 states have internal predecessors, (85), 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) [2021-11-23 13:35:14,542 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (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| 8)))) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (or (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|) (= .cse0 (+ (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int)) (and (< (+ |c_ULTIMATE.start_main_~a~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|) (or (= |ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|) (exists ((|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (= 2 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))))) (= .cse0 4) (= 3 (select .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (< 1 c_~N~0) (<= c_~N~0 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_69| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_69| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= (select (let ((.cse2 (* |v_ULTIMATE.start_main_~i~0#1_69| 8))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse2) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2)) 1))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)))))) is different from false [2021-11-23 13:35:15,437 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (select (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| 8)))) (.cse0 (+ 2 c_~N~0))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (<= .cse0 .cse1) (<= .cse1 .cse0) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_69| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_69| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= (select (let ((.cse2 (* |v_ULTIMATE.start_main_~i~0#1_69| 8))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse2) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2)) 1))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)))))) is different from false [2021-11-23 13:35:15,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:35:15,596 INFO L93 Difference]: Finished difference Result 91 states and 104 transitions. [2021-11-23 13:35:15,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-23 13:35:15,597 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 65 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-23 13:35:15,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:35:15,599 INFO L225 Difference]: With dead ends: 91 [2021-11-23 13:35:15,599 INFO L226 Difference]: Without dead ends: 89 [2021-11-23 13:35:15,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 4 IntricatePredicates, 1 DeprecatedPredicates, 1791 ImplicationChecksByTransitivity, 19.2s TimeCoverageRelationStatistics Valid=409, Invalid=4715, Unknown=4, NotChecked=572, Total=5700 [2021-11-23 13:35:15,603 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 20 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 604 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:35:15,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 201 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 342 Invalid, 0 Unknown, 604 Unchecked, 0.4s Time] [2021-11-23 13:35:15,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-23 13:35:15,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 66. [2021-11-23 13:35:15,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.1692307692307693) internal successors, (76), 65 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) [2021-11-23 13:35:15,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2021-11-23 13:35:15,614 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 32 [2021-11-23 13:35:15,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:35:15,615 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2021-11-23 13:35:15,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 65 states have internal predecessors, (85), 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) [2021-11-23 13:35:15,615 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2021-11-23 13:35:15,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 13:35:15,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:35:15,617 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:35:15,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:15,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:35:15,832 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:35:15,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:15,832 INFO L85 PathProgramCache]: Analyzing trace with hash -2147373800, now seen corresponding path program 5 times [2021-11-23 13:35:15,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:15,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260462306] [2021-11-23 13:35:15,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:15,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:15,937 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 13:35:15,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:35:15,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260462306] [2021-11-23 13:35:15,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260462306] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:35:15,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734924459] [2021-11-23 13:35:15,938 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-23 13:35:15,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:35:15,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:15,939 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:35:15,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 13:35:16,045 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-11-23 13:35:16,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:35:16,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 13:35:16,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:35:16,166 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 13:35:16,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:35:16,232 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 13:35:16,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734924459] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:35:16,232 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:35:16,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2021-11-23 13:35:16,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329062010] [2021-11-23 13:35:16,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:35:16,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 13:35:16,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:35:16,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 13:35:16,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-11-23 13:35:16,234 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:35:16,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:35:16,433 INFO L93 Difference]: Finished difference Result 145 states and 163 transitions. [2021-11-23 13:35:16,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 13:35:16,434 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-23 13:35:16,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:35:16,439 INFO L225 Difference]: With dead ends: 145 [2021-11-23 13:35:16,439 INFO L226 Difference]: Without dead ends: 110 [2021-11-23 13:35:16,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-23 13:35:16,441 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 124 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:35:16,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 66 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:35:16,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-11-23 13:35:16,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 77. [2021-11-23 13:35:16,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.131578947368421) internal successors, (86), 76 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:35:16,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2021-11-23 13:35:16,454 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 34 [2021-11-23 13:35:16,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:35:16,455 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2021-11-23 13:35:16,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:35:16,455 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2021-11-23 13:35:16,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 13:35:16,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:35:16,457 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:35:16,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:16,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:35:16,660 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:35:16,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:16,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1737020496, now seen corresponding path program 1 times [2021-11-23 13:35:16,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:16,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776700711] [2021-11-23 13:35:16,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:16,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:18,022 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:35:18,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:35:18,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776700711] [2021-11-23 13:35:18,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776700711] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:35:18,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752474921] [2021-11-23 13:35:18,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:18,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:35:18,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:18,027 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:35:18,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 13:35:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:18,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-23 13:35:18,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:35:18,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2021-11-23 13:35:18,111 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 [2021-11-23 13:35:18,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:18,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 13:35:18,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:18,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:18,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-11-23 13:35:18,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:18,683 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:35:18,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:18,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2021-11-23 13:35:18,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:18,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:18,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-11-23 13:35:19,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:19,114 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:35:19,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:19,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 41 [2021-11-23 13:35:19,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:19,321 INFO L354 Elim1Store]: treesize reduction 57, result has 10.9 percent of original size [2021-11-23 13:35:19,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 44 [2021-11-23 13:35:19,606 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:35:19,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:19,619 INFO L354 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2021-11-23 13:35:19,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 59 [2021-11-23 13:35:19,888 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:35:19,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:19,918 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size [2021-11-23 13:35:19,918 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 8 case distinctions, treesize of input 63 treesize of output 63 [2021-11-23 13:35:20,795 INFO L354 Elim1Store]: treesize reduction 61, result has 6.2 percent of original size [2021-11-23 13:35:20,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 94 treesize of output 62 [2021-11-23 13:35:20,859 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:35:20,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:35:25,858 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:35:25,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752474921] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:35:25,858 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:35:25,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23, 23] total 66 [2021-11-23 13:35:25,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863177802] [2021-11-23 13:35:25,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:35:25,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-23 13:35:25,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:35:25,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-23 13:35:25,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=369, Invalid=3921, Unknown=0, NotChecked=0, Total=4290 [2021-11-23 13:35:25,863 INFO L87 Difference]: Start difference. First operand 77 states and 86 transitions. Second operand has 66 states, 66 states have (on average 1.4696969696969697) internal successors, (97), 66 states have internal predecessors, (97), 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) [2021-11-23 13:35:34,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:35:34,890 INFO L93 Difference]: Finished difference Result 108 states and 116 transitions. [2021-11-23 13:35:34,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-23 13:35:34,890 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 1.4696969696969697) internal successors, (97), 66 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-23 13:35:34,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:35:34,891 INFO L225 Difference]: With dead ends: 108 [2021-11-23 13:35:34,891 INFO L226 Difference]: Without dead ends: 63 [2021-11-23 13:35:34,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 32 SyntacticMatches, 4 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2213 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=543, Invalid=5463, Unknown=0, NotChecked=0, Total=6006 [2021-11-23 13:35:34,894 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 35 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 79 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-23 13:35:34,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 188 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 794 Invalid, 0 Unknown, 79 Unchecked, 2.9s Time] [2021-11-23 13:35:34,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-23 13:35:34,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 57. [2021-11-23 13:35:34,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 56 states have internal predecessors, (64), 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) [2021-11-23 13:35:34,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2021-11-23 13:35:34,901 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 36 [2021-11-23 13:35:34,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:35:34,901 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2021-11-23 13:35:34,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 1.4696969696969697) internal successors, (97), 66 states have internal predecessors, (97), 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) [2021-11-23 13:35:34,902 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2021-11-23 13:35:34,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 13:35:34,903 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:35:34,903 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:35:34,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:35,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-23 13:35:35,108 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:35:35,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:35,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1245131882, now seen corresponding path program 6 times [2021-11-23 13:35:35,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:35,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941515399] [2021-11-23 13:35:35,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:35,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:35,191 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-23 13:35:35,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:35:35,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941515399] [2021-11-23 13:35:35,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941515399] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:35:35,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506287922] [2021-11-23 13:35:35,192 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-23 13:35:35,192 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:35:35,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:35,193 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:35:35,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 13:35:35,244 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-11-23 13:35:35,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:35:35,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 13:35:35,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:35:35,368 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-23 13:35:35,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:35:35,440 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-23 13:35:35,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506287922] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:35:35,440 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:35:35,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2021-11-23 13:35:35,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125998133] [2021-11-23 13:35:35,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:35:35,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 13:35:35,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:35:35,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 13:35:35,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-11-23 13:35:35,442 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:35:35,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:35:35,610 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2021-11-23 13:35:35,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 13:35:35,611 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-23 13:35:35,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:35:35,611 INFO L225 Difference]: With dead ends: 80 [2021-11-23 13:35:35,612 INFO L226 Difference]: Without dead ends: 64 [2021-11-23 13:35:35,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2021-11-23 13:35:35,613 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 126 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:35:35,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 75 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:35:35,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-23 13:35:35,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 43. [2021-11-23 13:35:35,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.119047619047619) internal successors, (47), 42 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:35:35,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2021-11-23 13:35:35,619 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 36 [2021-11-23 13:35:35,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:35:35,619 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2021-11-23 13:35:35,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:35:35,619 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2021-11-23 13:35:35,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 13:35:35,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:35:35,620 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:35:35,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:35,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:35:35,836 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:35:35,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:35,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1201221586, now seen corresponding path program 7 times [2021-11-23 13:35:35,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:35,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124264272] [2021-11-23 13:35:35,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:35,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:38,264 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:35:38,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:35:38,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124264272] [2021-11-23 13:35:38,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124264272] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:35:38,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286546219] [2021-11-23 13:35:38,265 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-23 13:35:38,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:35:38,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:38,266 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:35:38,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 13:35:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:38,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-23 13:35:38,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:35:38,335 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 [2021-11-23 13:35:38,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:38,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 13:35:38,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:38,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:38,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 13:35:38,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:38,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:38,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:38,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:38,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 47 [2021-11-23 13:35:39,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,130 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:35:39,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2021-11-23 13:35:39,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,366 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:35:39,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 49 [2021-11-23 13:35:39,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2021-11-23 13:35:39,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,964 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:35:39,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:39,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 56 [2021-11-23 13:35:40,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:40,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:40,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:40,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:40,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:40,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:40,278 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:35:40,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 58 [2021-11-23 13:35:40,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:40,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:40,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:40,638 INFO L354 Elim1Store]: treesize reduction 204, result has 19.4 percent of original size [2021-11-23 13:35:40,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 88 treesize of output 88 [2021-11-23 13:35:41,258 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:35:41,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:41,262 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:35:41,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:41,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:41,306 INFO L354 Elim1Store]: treesize reduction 121, result has 23.9 percent of original size [2021-11-23 13:35:41,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 105 treesize of output 98 [2021-11-23 13:35:41,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:41,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:41,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:41,719 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:35:41,720 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:35:41,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:41,722 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:35:41,769 INFO L354 Elim1Store]: treesize reduction 157, result has 18.7 percent of original size [2021-11-23 13:35:41,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 109 treesize of output 116 [2021-11-23 13:35:42,219 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:35:42,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:42,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:35:42,357 INFO L354 Elim1Store]: treesize reduction 352, result has 20.0 percent of original size [2021-11-23 13:35:42,357 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 28 case distinctions, treesize of input 96 treesize of output 143 [2021-11-23 13:35:57,410 INFO L354 Elim1Store]: treesize reduction 6, result has 76.0 percent of original size [2021-11-23 13:35:57,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 57 [2021-11-23 13:35:57,497 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:35:57,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:35:58,727 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= (select (let ((.cse0 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse0) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse0)) 1))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)))) is different from false [2021-11-23 13:36:39,985 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int)) (or (= (select (let ((.cse0 (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse2 8) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 8)) 1)))) (.cse1 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store .cse0 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse1) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) 1))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_148| (+ 2 |c_ULTIMATE.start_main_~i~0#1|)))) is different from false [2021-11-23 13:36:42,018 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int) (|ULTIMATE.start_main_~b~0#1.base| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (= (select (let ((.cse0 (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (let ((.cse2 (store (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse3) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3)) 1)))) (store .cse2 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse3 8) (+ (select (select (store |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base| .cse2) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 8)) 1))))) (.cse1 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store .cse0 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse1) (+ (select (select (store |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) 1))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)))) is different from false [2021-11-23 13:36:44,764 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_152| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int) (|ULTIMATE.start_main_~b~0#1.base| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| 2) (= (+ 2 c_~N~0) (select (let ((.cse4 (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_152| 8)))) (store .cse5 .cse6 (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse5 .cse6)))))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse4))) (let ((.cse0 (let ((.cse3 (store (select .cse2 |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (store .cse3 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8) (+ (select (select (store .cse2 |ULTIMATE.start_main_~b~0#1.base| .cse3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1)))) (.cse1 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store .cse0 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse1) (+ (select (select (store .cse2 |ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) 1))))) |c_ULTIMATE.start_main_~b~0#1.offset|)))) (< |v_ULTIMATE.start_main_~i~0#1_152| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2021-11-23 13:36:46,901 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (|v_ULTIMATE.start_main_~i~0#1_152| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| 2) (= (select (let ((.cse4 (let ((.cse5 (let ((.cse7 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse8 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8)))) (store .cse7 .cse8 (+ (select .cse7 .cse8) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (.cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_152| 8)))) (store .cse5 .cse6 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse5) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse5 .cse6)))))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse4))) (let ((.cse0 (let ((.cse3 (store (select .cse2 |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (store .cse3 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8) (+ (select (select (store .cse2 |ULTIMATE.start_main_~b~0#1.base| .cse3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1)))) (.cse1 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store .cse0 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse1) (+ (select (select (store .cse2 |ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) 1))))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_152| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2021-11-23 13:36:49,060 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (|v_ULTIMATE.start_main_~i~0#1_152| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| 2) (= (select (let ((.cse4 (let ((.cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_152| 8))) (.cse5 (let ((.cse7 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse8 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8) 8))) (store .cse7 .cse8 (+ (select .cse7 .cse8) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (store .cse5 .cse6 (+ (select .cse5 .cse6) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse5) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse4))) (let ((.cse0 (let ((.cse3 (store (select .cse2 |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (store .cse3 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8) (+ (select (select (store .cse2 |ULTIMATE.start_main_~b~0#1.base| .cse3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1)))) (.cse1 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store .cse0 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse1) (+ (select (select (store .cse2 |ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) 1))))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_152| (+ 2 |c_ULTIMATE.start_main_~i~0#1|)))) is different from false [2021-11-23 13:40:19,718 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 12 not checked. [2021-11-23 13:40:19,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286546219] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:40:19,719 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:40:19,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30, 30] total 86 [2021-11-23 13:40:19,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751333140] [2021-11-23 13:40:19,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:40:19,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2021-11-23 13:40:19,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:40:19,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2021-11-23 13:40:19,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=443, Invalid=5821, Unknown=80, NotChecked=966, Total=7310 [2021-11-23 13:40:19,724 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 86 states, 86 states have (on average 1.2906976744186047) internal successors, (111), 86 states have internal predecessors, (111), 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) [2021-11-23 13:40:46,444 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (= (+ 2 (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16))) .cse1) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8))) (+ .cse1 1)) (< (+ |c_ULTIMATE.start_main_~a~0#1.base| 1) |c_ULTIMATE.start_main_~#sum~0#1.base|) (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (|v_ULTIMATE.start_main_~i~0#1_152| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| 2) (= (select (let ((.cse6 (let ((.cse8 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_152| 8))) (.cse7 (let ((.cse9 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse10 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8) 8))) (store .cse9 .cse10 (+ (select .cse9 .cse10) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (store .cse7 .cse8 (+ (select .cse7 .cse8) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse7) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse6))) (let ((.cse2 (let ((.cse5 (store (select .cse4 |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (store .cse5 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8) (+ (select (select (store .cse4 |ULTIMATE.start_main_~b~0#1.base| .cse5) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1)))) (.cse3 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store .cse2 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse3) (+ (select (select (store .cse4 |ULTIMATE.start_main_~b~0#1.base| .cse2) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3)) 1))))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_152| (+ 2 |c_ULTIMATE.start_main_~i~0#1|)))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (<= c_~N~0 3) (or (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (< (+ 536870911 (* 4294967296 (div c_~N~0 4294967296))) c_~N~0)) (= 3 .cse1) (< 2 c_~N~0))) is different from false [2021-11-23 13:40:48,482 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse0 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (and (= (+ .cse0 1) (select .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8) (- 8)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= (+ 2 (select .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16))) .cse0) (= (select .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1) (= |c_ULTIMATE.start_main_~i~0#1| 1) (< (+ |c_ULTIMATE.start_main_~a~0#1.base| 1) |c_ULTIMATE.start_main_~#sum~0#1.base|) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (|v_ULTIMATE.start_main_~i~0#1_152| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| 2) (= (select (let ((.cse6 (let ((.cse7 (let ((.cse9 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse10 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8)))) (store .cse9 .cse10 (+ (select .cse9 .cse10) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (.cse8 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_152| 8)))) (store .cse7 .cse8 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse7) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse7 .cse8)))))) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse6))) (let ((.cse2 (let ((.cse5 (store (select .cse4 |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (store .cse5 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8) (+ (select (select (store .cse4 |ULTIMATE.start_main_~b~0#1.base| .cse5) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1)))) (.cse3 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store .cse2 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse3) (+ (select (select (store .cse4 |ULTIMATE.start_main_~b~0#1.base| .cse2) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3)) 1))))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_152| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (<= c_~N~0 3) (= 3 .cse0) (< 2 c_~N~0))) is different from false [2021-11-23 13:40:50,878 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 8)) (.cse0 (+ .cse3 1))) (and (= .cse0 (select .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= (+ 2 (select .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16))) .cse3) (= (select .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2)) .cse0) (= |c_ULTIMATE.start_main_~i~0#1| 1) (forall ((|v_ULTIMATE.start_main_~i~0#1_152| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int) (|ULTIMATE.start_main_~b~0#1.base| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| 2) (= (+ 2 c_~N~0) (select (let ((.cse8 (let ((.cse9 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse10 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_152| 8)))) (store .cse9 .cse10 (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse9 .cse10)))))) (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse8))) (let ((.cse4 (let ((.cse7 (store (select .cse6 |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (store .cse7 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8) (+ (select (select (store .cse6 |ULTIMATE.start_main_~b~0#1.base| .cse7) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1)))) (.cse5 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store .cse4 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse5) (+ (select (select (store .cse6 |ULTIMATE.start_main_~b~0#1.base| .cse4) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse5)) 1))))) |c_ULTIMATE.start_main_~b~0#1.offset|)))) (< |v_ULTIMATE.start_main_~i~0#1_152| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (< (+ |c_ULTIMATE.start_main_~a~0#1.base| 1) |c_ULTIMATE.start_main_~#sum~0#1.base|) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (<= c_~N~0 3) (= 3 .cse3) (< 2 c_~N~0)))) is different from false [2021-11-23 13:44:44,509 WARN L227 SmtUtils]: Spent 1.08m on a formula simplification. DAG size of input: 105 DAG size of output: 96 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:46:35,483 WARN L227 SmtUtils]: Spent 28.09s on a formula simplification that was a NOOP. DAG size: 92 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:46:41,924 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~i~0#1_152| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int) (|ULTIMATE.start_main_~b~0#1.base| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| 2) (= (+ 2 c_~N~0) (select (let ((.cse4 (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_152| 8)))) (store .cse5 .cse6 (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse5 .cse6)))))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse4))) (let ((.cse0 (let ((.cse3 (store (select .cse2 |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (store .cse3 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8) (+ (select (select (store .cse2 |ULTIMATE.start_main_~b~0#1.base| .cse3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1)))) (.cse1 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store .cse0 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse1) (+ (select (select (store .cse2 |ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) 1))))) |c_ULTIMATE.start_main_~b~0#1.offset|)))) (< |v_ULTIMATE.start_main_~i~0#1_152| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int) (|ULTIMATE.start_main_~b~0#1.base| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| 2) (= (select (let ((.cse7 (let ((.cse9 (store (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (store .cse9 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8) (+ (select (select (store |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base| .cse9) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1)))) (.cse8 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store .cse7 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse8) (+ (select (select (store |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base| .cse7) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse8)) 1))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0))))) is different from false [2021-11-23 13:46:48,031 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse0 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse2)))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (or (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|) (= .cse0 (+ (select .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2)) 1))) (= (select .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 4) (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= (select (let ((.cse3 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse3) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3)) 1))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)))) (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int)) (or (= (select (let ((.cse4 (let ((.cse6 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse6 8) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6 8)) 1)))) (.cse5 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store .cse4 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse5) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse4) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse5)) 1))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_148| (+ 2 |c_ULTIMATE.start_main_~i~0#1|)))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (let ((.cse7 (select .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (= .cse7 1) (= .cse7 4))) (<= c_~N~0 3) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int)) (and (or (= |ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|) (exists ((|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (= 3 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))) (< (+ |c_ULTIMATE.start_main_~a~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|))) (< 2 c_~N~0) (= 5 .cse0)))) is different from false [2021-11-23 13:46:56,093 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (and (= 5 (select .cse0 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse1 (- 8)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (or .cse2 (= (select .cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 4)) (or .cse2 (= 4 (select .cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 (- 8))))) (= |c_ULTIMATE.start_main_~i~0#1| 1) (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= (select (let ((.cse4 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse4) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse4)) 1))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (let ((.cse5 (select .cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (= .cse5 1) (= .cse5 4))) (<= c_~N~0 3) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int)) (and (or (= |ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|) (exists ((|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (= 3 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))) (< (+ |c_ULTIMATE.start_main_~a~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|))) (< 2 c_~N~0) (= 5 (select .cse0 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse1))))) is different from false [2021-11-23 13:46:58,125 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (select (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| 8)))) (.cse0 (+ 2 c_~N~0))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (<= .cse0 .cse1) (<= .cse1 .cse0) (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= (select (let ((.cse2 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse2) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2)) 1))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)))) (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int)) (or (= (select (let ((.cse3 (let ((.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse5 8) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse5 8)) 1)))) (.cse4 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store .cse3 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse4) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse4)) 1))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_148| (+ 2 |c_ULTIMATE.start_main_~i~0#1|)))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (or (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (< (+ 536870911 (* 4294967296 (div c_~N~0 4294967296))) c_~N~0)))) is different from false [2021-11-23 13:46:59,680 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse2 (+ 2 c_~N~0)) (.cse1 (select (let ((.cse12 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (store .cse0 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse12) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse12)) 1))) 0))) (and (<= (+ (div (* |c_ULTIMATE.start_main_~b~0#1.offset| (- 1)) 8) 1) |c_ULTIMATE.start_main_~i~0#1|) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= 5 (select .cse0 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8))) (= 5 (select .cse0 |c_ULTIMATE.start_main_~b~0#1.offset|)) (<= .cse1 .cse2) (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= (select (let ((.cse3 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse3) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3)) 1))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (<= c_~N~0 3) (<= .cse2 .cse1) (< 2 c_~N~0) (exists ((|ULTIMATE.start_main_~i~0#1| Int) (|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~a~0#1.base| Int)) (let ((.cse11 (* |ULTIMATE.start_main_~i~0#1| 8))) (let ((.cse9 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse11))) (.cse5 (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) (.cse4 (= |c_ULTIMATE.start_main_~b~0#1.base| |ULTIMATE.start_main_~a~0#1.base|))) (and (or (= |ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|) (exists ((|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (= 3 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))) (or .cse4 (= (select .cse5 0) 4)) (< (+ |ULTIMATE.start_main_~a~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|) (let ((.cse10 (* 8 |ULTIMATE.start_main_~i~0#1|))) (let ((.cse6 (= (+ .cse10 |c_ULTIMATE.start_main_~b~0#1.offset|) 16)) (.cse7 (select .cse5 16)) (.cse8 (not (= .cse10 16)))) (or (and (or .cse6 (= .cse7 4)) (or .cse8 (= 5 .cse9))) (and (or .cse6 (= .cse7 1)) (or (= .cse9 2) .cse8))))) (or .cse4 (= (+ 1 (select .cse5 .cse11)) .cse9)) (<= 2 |ULTIMATE.start_main_~i~0#1|) (or (= (select .cse5 8) 4) .cse4)))))))) is different from false [2021-11-23 13:47:00,996 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 2 c_~N~0)) (.cse0 (select (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse3) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3)) 1))) 0))) (and (<= (+ (div (* |c_ULTIMATE.start_main_~b~0#1.offset| (- 1)) 8) 1) |c_ULTIMATE.start_main_~i~0#1|) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= .cse0 .cse1) (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= (select (let ((.cse2 (* |v_ULTIMATE.start_main_~i~0#1_148| 8))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse2) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2)) 1))) |c_ULTIMATE.start_main_~b~0#1.offset|) (+ 2 c_~N~0)))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (<= .cse1 .cse0))) is different from false [2021-11-23 13:47:22,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:47:22,955 INFO L93 Difference]: Finished difference Result 141 states and 158 transitions. [2021-11-23 13:47:22,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-11-23 13:47:22,956 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 86 states have (on average 1.2906976744186047) internal successors, (111), 86 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-23 13:47:22,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:47:22,958 INFO L225 Difference]: With dead ends: 141 [2021-11-23 13:47:22,958 INFO L226 Difference]: Without dead ends: 139 [2021-11-23 13:47:22,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 23 SyntacticMatches, 6 SemanticMatches, 135 ConstructedPredicates, 15 IntricatePredicates, 0 DeprecatedPredicates, 4524 ImplicationChecksByTransitivity, 664.2s TimeCoverageRelationStatistics Valid=924, Invalid=13687, Unknown=211, NotChecked=3810, Total=18632 [2021-11-23 13:47:22,967 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 50 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 2311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1356 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:47:22,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 363 Invalid, 2311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 880 Invalid, 0 Unknown, 1356 Unchecked, 1.2s Time] [2021-11-23 13:47:22,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-23 13:47:22,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 100. [2021-11-23 13:47:22,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.1414141414141414) internal successors, (113), 99 states have internal predecessors, (113), 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) [2021-11-23 13:47:22,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 113 transitions. [2021-11-23 13:47:22,987 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 113 transitions. Word has length 40 [2021-11-23 13:47:22,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:47:22,988 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 113 transitions. [2021-11-23 13:47:22,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 1.2906976744186047) internal successors, (111), 86 states have internal predecessors, (111), 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) [2021-11-23 13:47:22,989 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 113 transitions. [2021-11-23 13:47:22,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 13:47:22,991 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:47:22,991 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:47:23,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 13:47:23,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 13:47:23,200 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:47:23,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:47:23,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1012369648, now seen corresponding path program 8 times [2021-11-23 13:47:23,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:47:23,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25255839] [2021-11-23 13:47:23,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:47:23,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:47:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:47:23,324 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-23 13:47:23,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:47:23,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25255839] [2021-11-23 13:47:23,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25255839] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:47:23,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720296565] [2021-11-23 13:47:23,325 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:47:23,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:47:23,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:47:23,327 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:47:23,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 13:47:23,416 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 13:47:23,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:47:23,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 13:47:23,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:47:23,662 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-23 13:47:23,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:47:23,797 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-23 13:47:23,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720296565] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:47:23,798 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:47:23,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2021-11-23 13:47:23,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672836313] [2021-11-23 13:47:23,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:47:23,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-23 13:47:23,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:47:23,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-23 13:47:23,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-11-23 13:47:23,801 INFO L87 Difference]: Start difference. First operand 100 states and 113 transitions. Second operand has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 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) [2021-11-23 13:47:24,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:47:24,139 INFO L93 Difference]: Finished difference Result 209 states and 232 transitions. [2021-11-23 13:47:24,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 13:47:24,140 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 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) Word has length 42 [2021-11-23 13:47:24,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:47:24,141 INFO L225 Difference]: With dead ends: 209 [2021-11-23 13:47:24,141 INFO L226 Difference]: Without dead ends: 166 [2021-11-23 13:47:24,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2021-11-23 13:47:24,144 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 130 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:47:24,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 100 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 13:47:24,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-23 13:47:24,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 115. [2021-11-23 13:47:24,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.1140350877192982) internal successors, (127), 114 states have internal predecessors, (127), 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) [2021-11-23 13:47:24,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 127 transitions. [2021-11-23 13:47:24,166 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 127 transitions. Word has length 42 [2021-11-23 13:47:24,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:47:24,167 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 127 transitions. [2021-11-23 13:47:24,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 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) [2021-11-23 13:47:24,167 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 127 transitions. [2021-11-23 13:47:24,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 13:47:24,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:47:24,169 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:47:24,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-23 13:47:24,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-23 13:47:24,388 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:47:24,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:47:24,389 INFO L85 PathProgramCache]: Analyzing trace with hash 2112995272, now seen corresponding path program 2 times [2021-11-23 13:47:24,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:47:24,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24255198] [2021-11-23 13:47:24,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:47:24,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:47:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:47:28,280 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:47:28,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:47:28,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24255198] [2021-11-23 13:47:28,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24255198] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:47:28,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121693267] [2021-11-23 13:47:28,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:47:28,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:47:28,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:47:28,282 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:47:28,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191c5fd9-5727-4c23-9921-ec706b0d87d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 13:47:28,349 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 13:47:28,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:47:28,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-23 13:47:28,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:47:28,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2021-11-23 13:47:28,393 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 [2021-11-23 13:47:28,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:28,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 13:47:28,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:28,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:28,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-11-23 13:47:28,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:28,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:28,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:28,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:28,975 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 47 treesize of output 52 [2021-11-23 13:47:29,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:29,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:29,522 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:47:29,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:29,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:29,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2021-11-23 13:47:29,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:29,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:29,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:29,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:29,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:29,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:29,818 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:47:29,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 54 [2021-11-23 13:47:30,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:30,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:30,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:30,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:30,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 49 [2021-11-23 13:47:30,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:30,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:30,568 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:47:30,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:30,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:30,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 56 [2021-11-23 13:47:30,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:30,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:30,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:30,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:30,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:30,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:30,909 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:47:30,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 53 [2021-11-23 13:47:31,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:31,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:31,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:31,345 INFO L354 Elim1Store]: treesize reduction 204, result has 19.4 percent of original size [2021-11-23 13:47:31,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 96 treesize of output 94 [2021-11-23 13:47:32,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:32,108 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:47:32,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:32,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:32,148 INFO L354 Elim1Store]: treesize reduction 79, result has 8.1 percent of original size [2021-11-23 13:47:32,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 97 treesize of output 83 [2021-11-23 13:47:32,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:32,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:32,769 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:47:32,771 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:47:32,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:32,824 INFO L354 Elim1Store]: treesize reduction 161, result has 12.0 percent of original size [2021-11-23 13:47:32,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 110 treesize of output 96 [2021-11-23 13:47:33,618 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:47:33,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:33,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:47:33,778 INFO L354 Elim1Store]: treesize reduction 386, result has 12.3 percent of original size [2021-11-23 13:47:33,779 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 28 case distinctions, treesize of input 122 treesize of output 113 [2021-11-23 13:47:40,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2021-11-23 13:47:40,336 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:47:40,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:47:42,024 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_200| Int)) (or (= (select (let ((.cse0 (* |v_ULTIMATE.start_main_~i~0#1_200| 8))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse0) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse0)) 1))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_200| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2021-11-23 13:47:44,048 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_200| Int)) (or (= (select (let ((.cse0 (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse2) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2)) 1)))) (.cse1 (* |v_ULTIMATE.start_main_~i~0#1_200| 8))) (store .cse0 (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse1) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) 1))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (+ 2 c_~N~0)) (< |v_ULTIMATE.start_main_~i~0#1_200| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false