./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/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_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash de331d1f778f147a4d32c0286c0018cb5b5cf61f2b6c0952b6bed68b0f715eaf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:46:36,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:46:36,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:46:36,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:46:36,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:46:36,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:46:36,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:46:36,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:46:36,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:46:36,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:46:36,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:46:36,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:46:36,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:46:36,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:46:36,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:46:36,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:46:36,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:46:36,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:46:36,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:46:36,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:46:36,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:46:36,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:46:36,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:46:36,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:46:36,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:46:36,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:46:36,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:46:36,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:46:36,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:46:36,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:46:36,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:46:36,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:46:36,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:46:36,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:46:36,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:46:36,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:46:36,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:46:36,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:46:36,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:46:36,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:46:36,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:46:36,240 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-11-23 13:46:36,282 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:46:36,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:46:36,283 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:46:36,287 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:46:36,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:46:36,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:46:36,295 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:46:36,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:46:36,295 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 13:46:36,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:46:36,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:46:36,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:46:36,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:46:36,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:46:36,297 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 13:46:36,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:46:36,298 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:46:36,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:46:36,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:46:36,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:46:36,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:46:36,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:46:36,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:46:36,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:46:36,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:46:36,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:46:36,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:46:36,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:46:36,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:46:36,309 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_156b5d6a-598f-45b2-9199-1c073d72b28b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de331d1f778f147a4d32c0286c0018cb5b5cf61f2b6c0952b6bed68b0f715eaf [2021-11-23 13:46:36,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:46:36,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:46:36,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:46:36,637 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:46:36,638 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:46:36,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1.c [2021-11-23 13:46:36,716 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/data/1c04e7c7e/ec1de27aa0984444bf137a50b3517ac3/FLAG82660b2e5 [2021-11-23 13:46:37,244 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:46:37,245 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1.c [2021-11-23 13:46:37,255 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/data/1c04e7c7e/ec1de27aa0984444bf137a50b3517ac3/FLAG82660b2e5 [2021-11-23 13:46:37,618 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/data/1c04e7c7e/ec1de27aa0984444bf137a50b3517ac3 [2021-11-23 13:46:37,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:46:37,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:46:37,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:46:37,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:46:37,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:46:37,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:46:37" (1/1) ... [2021-11-23 13:46:37,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc736eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:37, skipping insertion in model container [2021-11-23 13:46:37,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:46:37" (1/1) ... [2021-11-23 13:46:37,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:46:37,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:46:37,860 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:46:37,865 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:46:37,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:46:37,897 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:46:37,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:37 WrapperNode [2021-11-23 13:46:37,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:46:37,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:46:37,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:46:37,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:46:37,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:37" (1/1) ... [2021-11-23 13:46:37,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:37" (1/1) ... [2021-11-23 13:46:37,944 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 94 [2021-11-23 13:46:37,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:46:37,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:46:37,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:46:37,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:46:37,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:37" (1/1) ... [2021-11-23 13:46:37,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:37" (1/1) ... [2021-11-23 13:46:37,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:37" (1/1) ... [2021-11-23 13:46:37,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:37" (1/1) ... [2021-11-23 13:46:37,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:37" (1/1) ... [2021-11-23 13:46:37,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:37" (1/1) ... [2021-11-23 13:46:37,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:37" (1/1) ... [2021-11-23 13:46:37,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:46:37,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:46:37,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:46:37,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:46:37,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:37" (1/1) ... [2021-11-23 13:46:38,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:46:38,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:46:38,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:46:38,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:46:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:46:38,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:46:38,143 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:46:38,145 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:46:38,364 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:46:38,372 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:46:38,372 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 13:46:38,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:46:38 BoogieIcfgContainer [2021-11-23 13:46:38,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:46:38,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:46:38,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:46:38,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:46:38,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:46:37" (1/3) ... [2021-11-23 13:46:38,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91368db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:46:38, skipping insertion in model container [2021-11-23 13:46:38,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:37" (2/3) ... [2021-11-23 13:46:38,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91368db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:46:38, skipping insertion in model container [2021-11-23 13:46:38,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:46:38" (3/3) ... [2021-11-23 13:46:38,383 INFO L111 eAbstractionObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig1.c [2021-11-23 13:46:38,388 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:46:38,388 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-23 13:46:38,436 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:46:38,460 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 13:46:38,460 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-11-23 13:46:38,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 31 states have (on average 1.935483870967742) internal successors, (60), 47 states have internal predecessors, (60), 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 13:46:38,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 13:46:38,514 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:38,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-23 13:46:38,515 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:38,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:38,529 INFO L85 PathProgramCache]: Analyzing trace with hash 889509897, now seen corresponding path program 1 times [2021-11-23 13:46:38,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:38,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93233968] [2021-11-23 13:46:38,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:38,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:38,674 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 13:46:38,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:38,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93233968] [2021-11-23 13:46:38,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93233968] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:46:38,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:46:38,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:46:38,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737066571] [2021-11-23 13:46:38,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:46:38,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:46:38,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:38,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:46:38,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:46:38,715 INFO L87 Difference]: Start difference. First operand has 48 states, 31 states have (on average 1.935483870967742) internal successors, (60), 47 states have internal predecessors, (60), 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 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13:46:38,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:38,794 INFO L93 Difference]: Finished difference Result 118 states and 150 transitions. [2021-11-23 13:46:38,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:46:38,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-11-23 13:46:38,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:38,805 INFO L225 Difference]: With dead ends: 118 [2021-11-23 13:46:38,806 INFO L226 Difference]: Without dead ends: 73 [2021-11-23 13:46:38,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:46:38,813 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 42 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:38,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 70 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:46:38,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-23 13:46:38,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 63. [2021-11-23 13:46:38,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.7446808510638299) internal successors, (82), 62 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:46:38,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 82 transitions. [2021-11-23 13:46:38,852 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 82 transitions. Word has length 6 [2021-11-23 13:46:38,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:38,853 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 82 transitions. [2021-11-23 13:46:38,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13:46:38,853 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 82 transitions. [2021-11-23 13:46:38,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 13:46:38,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:38,854 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:46:38,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:46:38,855 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:38,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:38,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1805003084, now seen corresponding path program 1 times [2021-11-23 13:46:38,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:38,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172670188] [2021-11-23 13:46:38,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:38,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:38,882 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 13:46:38,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:38,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172670188] [2021-11-23 13:46:38,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172670188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:46:38,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:46:38,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:46:38,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539227868] [2021-11-23 13:46:38,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:46:38,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:46:38,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:38,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:46:38,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:46:38,887 INFO L87 Difference]: Start difference. First operand 63 states and 82 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 13:46:38,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:38,943 INFO L93 Difference]: Finished difference Result 105 states and 140 transitions. [2021-11-23 13:46:38,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:46:38,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2021-11-23 13:46:38,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:38,952 INFO L225 Difference]: With dead ends: 105 [2021-11-23 13:46:38,952 INFO L226 Difference]: Without dead ends: 101 [2021-11-23 13:46:38,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:46:38,954 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 33 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:38,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 54 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:46:38,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-23 13:46:38,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2021-11-23 13:46:38,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 79 states have (on average 1.6962025316455696) internal successors, (134), 92 states have internal predecessors, (134), 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 13:46:38,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 134 transitions. [2021-11-23 13:46:38,967 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 134 transitions. Word has length 7 [2021-11-23 13:46:38,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:38,967 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 134 transitions. [2021-11-23 13:46:38,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 13:46:38,968 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 134 transitions. [2021-11-23 13:46:38,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 13:46:38,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:38,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:46:38,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:46:38,969 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:38,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:38,970 INFO L85 PathProgramCache]: Analyzing trace with hash 120474522, now seen corresponding path program 1 times [2021-11-23 13:46:38,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:38,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508128989] [2021-11-23 13:46:38,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:38,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:39,000 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 13:46:39,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:39,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508128989] [2021-11-23 13:46:39,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508128989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:46:39,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:46:39,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:46:39,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484070906] [2021-11-23 13:46:39,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:46:39,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:46:39,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:39,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:46:39,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:46:39,004 INFO L87 Difference]: Start difference. First operand 93 states and 134 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 13:46:39,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:39,069 INFO L93 Difference]: Finished difference Result 123 states and 178 transitions. [2021-11-23 13:46:39,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:46:39,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-11-23 13:46:39,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:39,073 INFO L225 Difference]: With dead ends: 123 [2021-11-23 13:46:39,073 INFO L226 Difference]: Without dead ends: 121 [2021-11-23 13:46:39,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:46:39,075 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 24 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:39,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 44 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:46:39,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-11-23 13:46:39,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 105. [2021-11-23 13:46:39,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 91 states have (on average 1.6483516483516483) internal successors, (150), 104 states have internal predecessors, (150), 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 13:46:39,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 150 transitions. [2021-11-23 13:46:39,090 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 150 transitions. Word has length 8 [2021-11-23 13:46:39,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:39,103 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 150 transitions. [2021-11-23 13:46:39,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 13:46:39,104 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 150 transitions. [2021-11-23 13:46:39,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 13:46:39,104 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:39,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:46:39,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 13:46:39,106 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:39,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:39,107 INFO L85 PathProgramCache]: Analyzing trace with hash 120474171, now seen corresponding path program 1 times [2021-11-23 13:46:39,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:39,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106145102] [2021-11-23 13:46:39,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:39,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:39,166 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 13:46:39,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:39,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106145102] [2021-11-23 13:46:39,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106145102] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:46:39,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:46:39,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:46:39,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302567889] [2021-11-23 13:46:39,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:46:39,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:46:39,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:39,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:46:39,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:46:39,176 INFO L87 Difference]: Start difference. First operand 105 states and 150 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 13:46:39,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:39,251 INFO L93 Difference]: Finished difference Result 111 states and 150 transitions. [2021-11-23 13:46:39,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:46:39,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-11-23 13:46:39,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:39,253 INFO L225 Difference]: With dead ends: 111 [2021-11-23 13:46:39,254 INFO L226 Difference]: Without dead ends: 109 [2021-11-23 13:46:39,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:46:39,256 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 26 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:39,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 44 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:46:39,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-23 13:46:39,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2021-11-23 13:46:39,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 91 states have (on average 1.6043956043956045) internal successors, (146), 104 states have internal predecessors, (146), 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 13:46:39,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 146 transitions. [2021-11-23 13:46:39,278 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 146 transitions. Word has length 8 [2021-11-23 13:46:39,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:39,279 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 146 transitions. [2021-11-23 13:46:39,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 13:46:39,279 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 146 transitions. [2021-11-23 13:46:39,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 13:46:39,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:39,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:46:39,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 13:46:39,281 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:39,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:39,282 INFO L85 PathProgramCache]: Analyzing trace with hash -560257032, now seen corresponding path program 1 times [2021-11-23 13:46:39,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:39,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465479595] [2021-11-23 13:46:39,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:39,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:39,315 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 13:46:39,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:39,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465479595] [2021-11-23 13:46:39,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465479595] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:46:39,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:46:39,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:46:39,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267269399] [2021-11-23 13:46:39,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:46:39,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:46:39,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:39,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:46:39,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:46:39,319 INFO L87 Difference]: Start difference. First operand 105 states and 146 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 13:46:39,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:39,359 INFO L93 Difference]: Finished difference Result 105 states and 146 transitions. [2021-11-23 13:46:39,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:46:39,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-11-23 13:46:39,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:39,361 INFO L225 Difference]: With dead ends: 105 [2021-11-23 13:46:39,362 INFO L226 Difference]: Without dead ends: 104 [2021-11-23 13:46:39,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:46:39,364 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 21 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:39,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 77 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:46:39,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-11-23 13:46:39,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-11-23 13:46:39,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 91 states have (on average 1.5604395604395604) internal successors, (142), 103 states have internal predecessors, (142), 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 13:46:39,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 142 transitions. [2021-11-23 13:46:39,375 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 142 transitions. Word has length 9 [2021-11-23 13:46:39,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:39,376 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 142 transitions. [2021-11-23 13:46:39,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 13:46:39,376 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 142 transitions. [2021-11-23 13:46:39,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 13:46:39,377 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:39,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:46:39,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 13:46:39,378 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:39,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:39,379 INFO L85 PathProgramCache]: Analyzing trace with hash -560267923, now seen corresponding path program 1 times [2021-11-23 13:46:39,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:39,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200306419] [2021-11-23 13:46:39,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:39,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:39,435 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 13:46:39,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:39,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200306419] [2021-11-23 13:46:39,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200306419] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:46:39,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:46:39,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:46:39,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81326690] [2021-11-23 13:46:39,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:46:39,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:46:39,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:39,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:46:39,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:46:39,445 INFO L87 Difference]: Start difference. First operand 104 states and 142 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 13:46:39,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:39,516 INFO L93 Difference]: Finished difference Result 106 states and 144 transitions. [2021-11-23 13:46:39,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:46:39,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-11-23 13:46:39,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:39,523 INFO L225 Difference]: With dead ends: 106 [2021-11-23 13:46:39,523 INFO L226 Difference]: Without dead ends: 105 [2021-11-23 13:46:39,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:46:39,525 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 21 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:39,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 77 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:46:39,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-11-23 13:46:39,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2021-11-23 13:46:39,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 91 states have (on average 1.5164835164835164) internal successors, (138), 102 states have internal predecessors, (138), 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 13:46:39,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 138 transitions. [2021-11-23 13:46:39,543 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 138 transitions. Word has length 9 [2021-11-23 13:46:39,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:39,544 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 138 transitions. [2021-11-23 13:46:39,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 13:46:39,544 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 138 transitions. [2021-11-23 13:46:39,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 13:46:39,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:39,545 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:46:39,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 13:46:39,546 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:39,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:39,547 INFO L85 PathProgramCache]: Analyzing trace with hash -558822290, now seen corresponding path program 1 times [2021-11-23 13:46:39,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:39,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125500977] [2021-11-23 13:46:39,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:39,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:39,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:39,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:39,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125500977] [2021-11-23 13:46:39,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125500977] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:46:39,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517134479] [2021-11-23 13:46:39,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:39,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:46:39,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:46:39,596 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:46:39,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 13:46:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:39,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:46:39,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:46:39,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:39,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:46:39,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:39,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517134479] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:46:39,780 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:46:39,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-11-23 13:46:39,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297396559] [2021-11-23 13:46:39,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:46:39,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:46:39,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:39,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:46:39,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:46:39,783 INFO L87 Difference]: Start difference. First operand 103 states and 138 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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 13:46:39,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:39,883 INFO L93 Difference]: Finished difference Result 261 states and 348 transitions. [2021-11-23 13:46:39,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:46:39,884 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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 9 [2021-11-23 13:46:39,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:39,886 INFO L225 Difference]: With dead ends: 261 [2021-11-23 13:46:39,886 INFO L226 Difference]: Without dead ends: 257 [2021-11-23 13:46:39,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:46:39,895 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 168 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:39,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 114 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:46:39,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2021-11-23 13:46:39,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 121. [2021-11-23 13:46:39,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 109 states have (on average 1.4862385321100917) internal successors, (162), 120 states have internal predecessors, (162), 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 13:46:39,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 162 transitions. [2021-11-23 13:46:39,912 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 162 transitions. Word has length 9 [2021-11-23 13:46:39,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:39,912 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 162 transitions. [2021-11-23 13:46:39,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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 13:46:39,913 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 162 transitions. [2021-11-23 13:46:39,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 13:46:39,913 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:39,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:46:39,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:46:40,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:46:40,136 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:40,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:40,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1717808110, now seen corresponding path program 1 times [2021-11-23 13:46:40,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:40,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961441090] [2021-11-23 13:46:40,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:40,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:40,179 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 13:46:40,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:40,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961441090] [2021-11-23 13:46:40,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961441090] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:46:40,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:46:40,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:46:40,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952880956] [2021-11-23 13:46:40,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:46:40,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:46:40,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:40,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:46:40,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:46:40,185 INFO L87 Difference]: Start difference. First operand 121 states and 162 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 13:46:40,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:40,224 INFO L93 Difference]: Finished difference Result 121 states and 162 transitions. [2021-11-23 13:46:40,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:46:40,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-11-23 13:46:40,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:40,225 INFO L225 Difference]: With dead ends: 121 [2021-11-23 13:46:40,226 INFO L226 Difference]: Without dead ends: 120 [2021-11-23 13:46:40,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:46:40,231 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 44 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:40,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 54 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:46:40,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-23 13:46:40,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-11-23 13:46:40,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 109 states have (on average 1.4495412844036697) internal successors, (158), 119 states have internal predecessors, (158), 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 13:46:40,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 158 transitions. [2021-11-23 13:46:40,244 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 158 transitions. Word has length 9 [2021-11-23 13:46:40,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:40,244 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 158 transitions. [2021-11-23 13:46:40,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 13:46:40,245 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 158 transitions. [2021-11-23 13:46:40,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 13:46:40,245 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:40,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:46:40,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 13:46:40,246 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:40,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:40,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1717797219, now seen corresponding path program 1 times [2021-11-23 13:46:40,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:40,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134583165] [2021-11-23 13:46:40,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:40,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:40,293 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 13:46:40,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:40,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134583165] [2021-11-23 13:46:40,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134583165] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:46:40,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:46:40,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:46:40,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113605228] [2021-11-23 13:46:40,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:46:40,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:46:40,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:40,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:46:40,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:46:40,295 INFO L87 Difference]: Start difference. First operand 120 states and 158 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 13:46:40,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:40,323 INFO L93 Difference]: Finished difference Result 124 states and 162 transitions. [2021-11-23 13:46:40,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:46:40,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-11-23 13:46:40,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:40,324 INFO L225 Difference]: With dead ends: 124 [2021-11-23 13:46:40,324 INFO L226 Difference]: Without dead ends: 123 [2021-11-23 13:46:40,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:46:40,326 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 46 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:40,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 54 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:46:40,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-11-23 13:46:40,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 119. [2021-11-23 13:46:40,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 109 states have (on average 1.4128440366972477) internal successors, (154), 118 states have internal predecessors, (154), 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 13:46:40,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 154 transitions. [2021-11-23 13:46:40,336 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 154 transitions. Word has length 9 [2021-11-23 13:46:40,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:40,346 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 154 transitions. [2021-11-23 13:46:40,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 13:46:40,347 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 154 transitions. [2021-11-23 13:46:40,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 13:46:40,348 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:40,348 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:46:40,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 13:46:40,348 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:40,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:40,349 INFO L85 PathProgramCache]: Analyzing trace with hash -374264054, now seen corresponding path program 1 times [2021-11-23 13:46:40,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:40,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099772410] [2021-11-23 13:46:40,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:40,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:40,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:40,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099772410] [2021-11-23 13:46:40,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099772410] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:46:40,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324776611] [2021-11-23 13:46:40,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:40,414 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:46:40,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:46:40,416 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:46:40,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 13:46:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:40,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 13:46:40,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:46:40,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:40,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:46:40,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324776611] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:46:40,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:46:40,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-23 13:46:40,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294927229] [2021-11-23 13:46:40,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:46:40,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:46:40,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:40,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:46:40,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:46:40,576 INFO L87 Difference]: Start difference. First operand 119 states and 154 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 13:46:40,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:40,620 INFO L93 Difference]: Finished difference Result 157 states and 202 transitions. [2021-11-23 13:46:40,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:46:40,621 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2021-11-23 13:46:40,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:40,622 INFO L225 Difference]: With dead ends: 157 [2021-11-23 13:46:40,623 INFO L226 Difference]: Without dead ends: 155 [2021-11-23 13:46:40,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:46:40,624 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 37 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:40,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 60 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:46:40,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-11-23 13:46:40,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 105. [2021-11-23 13:46:40,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 97 states have (on average 1.3402061855670102) internal successors, (130), 104 states have internal predecessors, (130), 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 13:46:40,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 130 transitions. [2021-11-23 13:46:40,650 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 130 transitions. Word has length 12 [2021-11-23 13:46:40,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:40,650 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 130 transitions. [2021-11-23 13:46:40,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 13:46:40,650 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 130 transitions. [2021-11-23 13:46:40,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 13:46:40,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:40,653 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:46:40,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:46:40,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:46:40,867 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:40,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:40,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1443778860, now seen corresponding path program 1 times [2021-11-23 13:46:40,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:40,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697310739] [2021-11-23 13:46:40,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:40,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:40,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:40,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:40,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697310739] [2021-11-23 13:46:40,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697310739] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:46:40,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97827835] [2021-11-23 13:46:40,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:40,930 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:46:40,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:46:40,931 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:46:40,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 13:46:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:40,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 13:46:40,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:46:41,059 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:41,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:46:41,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97827835] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:46:41,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:46:41,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-23 13:46:41,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945639071] [2021-11-23 13:46:41,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:46:41,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:46:41,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:41,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:46:41,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:46:41,068 INFO L87 Difference]: Start difference. First operand 105 states and 130 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 13:46:41,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:41,098 INFO L93 Difference]: Finished difference Result 105 states and 130 transitions. [2021-11-23 13:46:41,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:46:41,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2021-11-23 13:46:41,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:41,100 INFO L225 Difference]: With dead ends: 105 [2021-11-23 13:46:41,100 INFO L226 Difference]: Without dead ends: 103 [2021-11-23 13:46:41,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:46:41,102 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 37 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:41,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 52 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:46:41,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-23 13:46:41,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2021-11-23 13:46:41,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 97 states have (on average 1.2989690721649485) internal successors, (126), 102 states have internal predecessors, (126), 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 13:46:41,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 126 transitions. [2021-11-23 13:46:41,107 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 126 transitions. Word has length 14 [2021-11-23 13:46:41,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:41,107 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 126 transitions. [2021-11-23 13:46:41,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 13:46:41,108 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 126 transitions. [2021-11-23 13:46:41,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 13:46:41,112 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:41,112 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:46:41,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:46:41,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-23 13:46:41,331 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:41,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:41,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1813444554, now seen corresponding path program 1 times [2021-11-23 13:46:41,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:41,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377513697] [2021-11-23 13:46:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:41,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:41,367 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:41,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:41,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377513697] [2021-11-23 13:46:41,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377513697] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:46:41,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007501353] [2021-11-23 13:46:41,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:41,369 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:46:41,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:46:41,382 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:46:41,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 13:46:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:41,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:46:41,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:46:41,482 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:41,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:46:41,540 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:41,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007501353] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:46:41,540 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:46:41,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-11-23 13:46:41,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863340065] [2021-11-23 13:46:41,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:46:41,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:46:41,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:41,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:46:41,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:46:41,544 INFO L87 Difference]: Start difference. First operand 103 states and 126 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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 13:46:41,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:41,595 INFO L93 Difference]: Finished difference Result 201 states and 252 transitions. [2021-11-23 13:46:41,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:46:41,596 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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 17 [2021-11-23 13:46:41,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:41,597 INFO L225 Difference]: With dead ends: 201 [2021-11-23 13:46:41,597 INFO L226 Difference]: Without dead ends: 199 [2021-11-23 13:46:41,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:46:41,599 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 94 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:41,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 82 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:46:41,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-23 13:46:41,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-11-23 13:46:41,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 193 states have (on average 1.2435233160621761) internal successors, (240), 198 states have internal predecessors, (240), 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 13:46:41,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 240 transitions. [2021-11-23 13:46:41,605 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 240 transitions. Word has length 17 [2021-11-23 13:46:41,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:41,605 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 240 transitions. [2021-11-23 13:46:41,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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 13:46:41,606 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 240 transitions. [2021-11-23 13:46:41,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 13:46:41,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:41,608 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1] [2021-11-23 13:46:41,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:46:41,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-23 13:46:41,831 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:41,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:41,833 INFO L85 PathProgramCache]: Analyzing trace with hash -56048695, now seen corresponding path program 2 times [2021-11-23 13:46:41,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:41,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444427653] [2021-11-23 13:46:41,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:41,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:41,857 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-23 13:46:41,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:41,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444427653] [2021-11-23 13:46:41,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444427653] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:46:41,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027149446] [2021-11-23 13:46:41,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:46:41,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:46:41,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:46:41,859 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:46:41,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 13:46:41,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-23 13:46:41,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:46:41,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:46:41,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:46:41,948 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-23 13:46:41,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:46:42,008 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-23 13:46:42,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027149446] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:46:42,009 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:46:42,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-11-23 13:46:42,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126261896] [2021-11-23 13:46:42,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:46:42,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:46:42,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:42,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:46:42,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:46:42,013 INFO L87 Difference]: Start difference. First operand 199 states and 240 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 13:46:42,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:42,065 INFO L93 Difference]: Finished difference Result 279 states and 332 transitions. [2021-11-23 13:46:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:46:42,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 18 [2021-11-23 13:46:42,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:42,068 INFO L225 Difference]: With dead ends: 279 [2021-11-23 13:46:42,068 INFO L226 Difference]: Without dead ends: 277 [2021-11-23 13:46:42,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:46:42,070 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 119 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:42,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 56 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:46:42,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-11-23 13:46:42,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 195. [2021-11-23 13:46:42,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 191 states have (on average 1.2356020942408377) internal successors, (236), 194 states have internal predecessors, (236), 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 13:46:42,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 236 transitions. [2021-11-23 13:46:42,077 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 236 transitions. Word has length 18 [2021-11-23 13:46:42,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:42,079 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 236 transitions. [2021-11-23 13:46:42,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 13:46:42,079 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 236 transitions. [2021-11-23 13:46:42,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 13:46:42,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:42,081 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:46:42,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:46:42,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:46:42,306 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:42,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:42,307 INFO L85 PathProgramCache]: Analyzing trace with hash 755809341, now seen corresponding path program 1 times [2021-11-23 13:46:42,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:42,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205245373] [2021-11-23 13:46:42,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:42,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:42,332 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 13:46:42,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:42,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205245373] [2021-11-23 13:46:42,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205245373] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:46:42,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:46:42,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:46:42,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849699049] [2021-11-23 13:46:42,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:46:42,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:46:42,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:42,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:46:42,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:46:42,334 INFO L87 Difference]: Start difference. First operand 195 states and 236 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 13:46:42,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:42,365 INFO L93 Difference]: Finished difference Result 275 states and 328 transitions. [2021-11-23 13:46:42,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:46:42,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 22 [2021-11-23 13:46:42,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:42,367 INFO L225 Difference]: With dead ends: 275 [2021-11-23 13:46:42,368 INFO L226 Difference]: Without dead ends: 273 [2021-11-23 13:46:42,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 13:46:42,369 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 65 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:42,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 36 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:46:42,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-11-23 13:46:42,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 93. [2021-11-23 13:46:42,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 91 states have (on average 1.164835164835165) internal successors, (106), 92 states have internal predecessors, (106), 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 13:46:42,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 106 transitions. [2021-11-23 13:46:42,373 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 106 transitions. Word has length 22 [2021-11-23 13:46:42,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:42,374 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 106 transitions. [2021-11-23 13:46:42,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 13:46:42,374 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 106 transitions. [2021-11-23 13:46:42,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 13:46:42,375 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:42,375 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2021-11-23 13:46:42,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 13:46:42,375 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:42,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:42,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1581259531, now seen corresponding path program 2 times [2021-11-23 13:46:42,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:42,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024106387] [2021-11-23 13:46:42,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:42,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:42,434 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:42,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:42,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024106387] [2021-11-23 13:46:42,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024106387] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:46:42,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039275014] [2021-11-23 13:46:42,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:46:42,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:46:42,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:46:42,435 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:46:42,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 13:46:42,477 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 13:46:42,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:46:42,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 13:46:42,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:46:42,567 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:42,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:46:42,687 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:42,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039275014] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:46:42,687 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:46:42,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-11-23 13:46:42,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371097692] [2021-11-23 13:46:42,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:46:42,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 13:46:42,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:42,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 13:46:42,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:46:42,691 INFO L87 Difference]: Start difference. First operand 93 states and 106 transitions. Second operand has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 12 states have internal predecessors, (68), 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 13:46:42,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:42,774 INFO L93 Difference]: Finished difference Result 191 states and 226 transitions. [2021-11-23 13:46:42,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 13:46:42,775 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 12 states have internal predecessors, (68), 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 35 [2021-11-23 13:46:42,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:42,776 INFO L225 Difference]: With dead ends: 191 [2021-11-23 13:46:42,776 INFO L226 Difference]: Without dead ends: 189 [2021-11-23 13:46:42,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:46:42,780 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 192 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:42,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 170 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:46:42,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-23 13:46:42,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2021-11-23 13:46:42,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 187 states have (on average 1.1443850267379678) internal successors, (214), 188 states have internal predecessors, (214), 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 13:46:42,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 214 transitions. [2021-11-23 13:46:42,787 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 214 transitions. Word has length 35 [2021-11-23 13:46:42,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:42,789 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 214 transitions. [2021-11-23 13:46:42,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 12 states have internal predecessors, (68), 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 13:46:42,789 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 214 transitions. [2021-11-23 13:46:42,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 13:46:42,793 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:42,793 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1] [2021-11-23 13:46:42,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:46:43,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-23 13:46:43,007 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:43,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:43,008 INFO L85 PathProgramCache]: Analyzing trace with hash -858583307, now seen corresponding path program 3 times [2021-11-23 13:46:43,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:43,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561749690] [2021-11-23 13:46:43,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:43,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:43,161 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:43,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:43,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561749690] [2021-11-23 13:46:43,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561749690] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:46:43,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392763440] [2021-11-23 13:46:43,162 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 13:46:43,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:46:43,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:46:43,163 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:46:43,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 13:46:43,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-11-23 13:46:43,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:46:43,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 13:46:43,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:46:43,466 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:43,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:46:43,818 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:43,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392763440] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:46:43,819 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:46:43,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2021-11-23 13:46:43,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871971120] [2021-11-23 13:46:43,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:46:43,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-23 13:46:43,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:43,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-23 13:46:43,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-23 13:46:43,821 INFO L87 Difference]: Start difference. First operand 189 states and 214 transitions. Second operand has 24 states, 23 states have (on average 6.086956521739131) internal successors, (140), 24 states have internal predecessors, (140), 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 13:46:44,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:44,115 INFO L93 Difference]: Finished difference Result 383 states and 454 transitions. [2021-11-23 13:46:44,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-23 13:46:44,115 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.086956521739131) internal successors, (140), 24 states have internal predecessors, (140), 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 71 [2021-11-23 13:46:44,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:44,118 INFO L225 Difference]: With dead ends: 383 [2021-11-23 13:46:44,118 INFO L226 Difference]: Without dead ends: 381 [2021-11-23 13:46:44,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-23 13:46:44,120 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 756 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:44,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [756 Valid, 338 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:46:44,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2021-11-23 13:46:44,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2021-11-23 13:46:44,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 379 states have (on average 1.1345646437994723) internal successors, (430), 380 states have internal predecessors, (430), 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 13:46:44,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 430 transitions. [2021-11-23 13:46:44,129 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 430 transitions. Word has length 71 [2021-11-23 13:46:44,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:44,130 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 430 transitions. [2021-11-23 13:46:44,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.086956521739131) internal successors, (140), 24 states have internal predecessors, (140), 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 13:46:44,130 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 430 transitions. [2021-11-23 13:46:44,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-23 13:46:44,132 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:44,132 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 1, 1, 1, 1, 1, 1] [2021-11-23 13:46:44,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 13:46:44,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-23 13:46:44,354 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:44,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:44,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1991708727, now seen corresponding path program 4 times [2021-11-23 13:46:44,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:44,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371796000] [2021-11-23 13:46:44,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:44,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:44,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:44,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:44,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371796000] [2021-11-23 13:46:44,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371796000] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:46:44,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693869519] [2021-11-23 13:46:44,807 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 13:46:44,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:46:44,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:46:44,809 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:46:44,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 13:46:44,897 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 13:46:44,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:46:44,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 13:46:44,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:46:45,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:45,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:46:46,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:46,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693869519] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:46:46,329 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:46:46,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2021-11-23 13:46:46,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785019870] [2021-11-23 13:46:46,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:46:46,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-23 13:46:46,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:46,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-23 13:46:46,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-11-23 13:46:46,334 INFO L87 Difference]: Start difference. First operand 381 states and 430 transitions. Second operand has 48 states, 47 states have (on average 6.042553191489362) internal successors, (284), 48 states have internal predecessors, (284), 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 13:46:47,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:47,065 INFO L93 Difference]: Finished difference Result 767 states and 910 transitions. [2021-11-23 13:46:47,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-23 13:46:47,066 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.042553191489362) internal successors, (284), 48 states have internal predecessors, (284), 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 143 [2021-11-23 13:46:47,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:47,070 INFO L225 Difference]: With dead ends: 767 [2021-11-23 13:46:47,070 INFO L226 Difference]: Without dead ends: 765 [2021-11-23 13:46:47,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-11-23 13:46:47,073 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 1749 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:47,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1749 Valid, 672 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 13:46:47,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2021-11-23 13:46:47,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 765. [2021-11-23 13:46:47,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 763 states have (on average 1.129750982961992) internal successors, (862), 764 states have internal predecessors, (862), 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 13:46:47,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 862 transitions. [2021-11-23 13:46:47,091 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 862 transitions. Word has length 143 [2021-11-23 13:46:47,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:47,092 INFO L470 AbstractCegarLoop]: Abstraction has 765 states and 862 transitions. [2021-11-23 13:46:47,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.042553191489362) internal successors, (284), 48 states have internal predecessors, (284), 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 13:46:47,092 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 862 transitions. [2021-11-23 13:46:47,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-11-23 13:46:47,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:47,103 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 1, 1, 1, 1, 1, 1] [2021-11-23 13:46:47,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 13:46:47,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-23 13:46:47,328 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:47,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:47,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2135255695, now seen corresponding path program 5 times [2021-11-23 13:46:47,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:47,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158040380] [2021-11-23 13:46:47,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:47,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:46:48,633 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:48,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:46:48,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158040380] [2021-11-23 13:46:48,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158040380] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:46:48,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901675877] [2021-11-23 13:46:48,634 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-23 13:46:48,634 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:46:48,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:46:48,639 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:46:48,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 13:46:48,847 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-11-23 13:46:48,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:46:48,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-23 13:46:48,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:46:49,468 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:49,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:46:52,823 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:46:52,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901675877] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:46:52,823 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:46:52,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2021-11-23 13:46:52,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145993254] [2021-11-23 13:46:52,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:46:52,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-11-23 13:46:52,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:46:52,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-11-23 13:46:52,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-11-23 13:46:52,833 INFO L87 Difference]: Start difference. First operand 765 states and 862 transitions. Second operand has 96 states, 95 states have (on average 6.021052631578947) internal successors, (572), 96 states have internal predecessors, (572), 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 13:46:57,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:46:57,278 INFO L93 Difference]: Finished difference Result 1535 states and 1822 transitions. [2021-11-23 13:46:57,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-23 13:46:57,279 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.021052631578947) internal successors, (572), 96 states have internal predecessors, (572), 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 287 [2021-11-23 13:46:57,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:46:57,287 INFO L225 Difference]: With dead ends: 1535 [2021-11-23 13:46:57,287 INFO L226 Difference]: Without dead ends: 1533 [2021-11-23 13:46:57,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 620 GetRequests, 526 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-11-23 13:46:57,293 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 3600 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3600 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:46:57,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3600 Valid, 1352 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 13:46:57,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2021-11-23 13:46:57,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1533. [2021-11-23 13:46:57,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1531 states have (on average 1.1273677335075114) internal successors, (1726), 1532 states have internal predecessors, (1726), 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 13:46:57,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 1726 transitions. [2021-11-23 13:46:57,327 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 1726 transitions. Word has length 287 [2021-11-23 13:46:57,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:46:57,328 INFO L470 AbstractCegarLoop]: Abstraction has 1533 states and 1726 transitions. [2021-11-23 13:46:57,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.021052631578947) internal successors, (572), 96 states have internal predecessors, (572), 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 13:46:57,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 1726 transitions. [2021-11-23 13:46:57,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2021-11-23 13:46:57,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:46:57,344 INFO L514 BasicCegarLoop]: trace histogram [95, 95, 95, 95, 95, 94, 1, 1, 1, 1, 1, 1] [2021-11-23 13:46:57,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-23 13:46:57,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-23 13:46:57,563 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:46:57,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:46:57,564 INFO L85 PathProgramCache]: Analyzing trace with hash 702902465, now seen corresponding path program 6 times [2021-11-23 13:46:57,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:46:57,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828173766] [2021-11-23 13:46:57,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:46:57,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:46:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:47:01,633 INFO L134 CoverageAnalysis]: Checked inductivity of 26790 backedges. 0 proven. 26790 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:47:01,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:47:01,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828173766] [2021-11-23 13:47:01,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828173766] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:47:01,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057689505] [2021-11-23 13:47:01,634 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-23 13:47:01,634 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:47:01,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:47:01,634 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:47:01,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 13:47:02,147 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2021-11-23 13:47:02,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:47:02,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 1633 conjuncts, 96 conjunts are in the unsatisfiable core [2021-11-23 13:47:02,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:47:03,453 INFO L134 CoverageAnalysis]: Checked inductivity of 26790 backedges. 0 proven. 26790 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:47:03,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:47:13,648 INFO L134 CoverageAnalysis]: Checked inductivity of 26790 backedges. 0 proven. 26790 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:47:13,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057689505] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:47:13,649 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:47:13,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2021-11-23 13:47:13,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980828337] [2021-11-23 13:47:13,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:47:13,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2021-11-23 13:47:13,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:47:13,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2021-11-23 13:47:13,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2021-11-23 13:47:13,670 INFO L87 Difference]: Start difference. First operand 1533 states and 1726 transitions. Second operand has 192 states, 191 states have (on average 6.010471204188482) internal successors, (1148), 192 states have internal predecessors, (1148), 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 13:47:48,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:47:48,277 INFO L93 Difference]: Finished difference Result 3071 states and 3646 transitions. [2021-11-23 13:47:48,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2021-11-23 13:47:48,278 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.010471204188482) internal successors, (1148), 192 states have internal predecessors, (1148), 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 575 [2021-11-23 13:47:48,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:47:48,294 INFO L225 Difference]: With dead ends: 3071 [2021-11-23 13:47:48,294 INFO L226 Difference]: Without dead ends: 3069 [2021-11-23 13:47:48,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1244 GetRequests, 1054 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2021-11-23 13:47:48,301 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 9143 mSDsluCounter, 2674 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 1029 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9143 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1029 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:47:48,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9143 Valid, 2696 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1029 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-23 13:47:48,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2021-11-23 13:47:48,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 3069. [2021-11-23 13:47:48,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3069 states, 3067 states have (on average 1.126181936746006) internal successors, (3454), 3068 states have internal predecessors, (3454), 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 13:47:48,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3069 states to 3069 states and 3454 transitions. [2021-11-23 13:47:48,361 INFO L78 Accepts]: Start accepts. Automaton has 3069 states and 3454 transitions. Word has length 575 [2021-11-23 13:47:48,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:47:48,362 INFO L470 AbstractCegarLoop]: Abstraction has 3069 states and 3454 transitions. [2021-11-23 13:47:48,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.010471204188482) internal successors, (1148), 192 states have internal predecessors, (1148), 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 13:47:48,363 INFO L276 IsEmpty]: Start isEmpty. Operand 3069 states and 3454 transitions. [2021-11-23 13:47:48,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1152 [2021-11-23 13:47:48,418 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:47:48,419 INFO L514 BasicCegarLoop]: trace histogram [191, 191, 191, 191, 191, 190, 1, 1, 1, 1, 1, 1] [2021-11-23 13:47:48,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-23 13:47:48,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:47:48,635 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-11-23 13:47:48,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:47:48,636 INFO L85 PathProgramCache]: Analyzing trace with hash -958830751, now seen corresponding path program 7 times [2021-11-23 13:47:48,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:47:48,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488478265] [2021-11-23 13:47:48,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:47:48,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:47:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:48:02,219 INFO L134 CoverageAnalysis]: Checked inductivity of 108870 backedges. 0 proven. 108870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:02,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:48:02,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488478265] [2021-11-23 13:48:02,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488478265] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:48:02,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714805653] [2021-11-23 13:48:02,220 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-23 13:48:02,220 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:48:02,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:48:02,229 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:48:02,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156b5d6a-598f-45b2-9199-1c073d72b28b/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-23 13:48:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:48:02,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 3265 conjuncts, 192 conjunts are in the unsatisfiable core [2021-11-23 13:48:02,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:48:04,867 INFO L134 CoverageAnalysis]: Checked inductivity of 108870 backedges. 0 proven. 108870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:04,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:48:42,205 INFO L134 CoverageAnalysis]: Checked inductivity of 108870 backedges. 0 proven. 108870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:42,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714805653] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:48:42,205 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:48:42,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2021-11-23 13:48:42,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862948973] [2021-11-23 13:48:42,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:48:42,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2021-11-23 13:48:42,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:48:42,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2021-11-23 13:48:42,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2021-11-23 13:48:42,246 INFO L87 Difference]: Start difference. First operand 3069 states and 3454 transitions. Second operand has 384 states, 383 states have (on average 6.005221932114883) internal successors, (2300), 384 states have internal predecessors, (2300), 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)