./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/busybox-1.22.0/hostid.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/busybox-1.22.0/hostid.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 de0fc62ae58e6d221c3194714bc6cea21909b72dd1b37b4566b87d84683f34c8 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 15:32:20,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 15:32:20,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 15:32:20,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 15:32:20,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 15:32:20,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 15:32:20,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 15:32:20,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 15:32:20,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 15:32:20,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 15:32:20,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 15:32:20,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 15:32:20,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 15:32:20,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 15:32:20,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 15:32:20,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 15:32:20,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 15:32:20,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 15:32:20,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 15:32:20,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 15:32:20,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 15:32:20,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 15:32:20,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 15:32:20,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 15:32:20,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 15:32:20,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 15:32:20,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 15:32:20,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 15:32:20,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 15:32:20,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 15:32:20,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 15:32:20,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 15:32:20,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 15:32:20,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 15:32:20,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 15:32:20,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 15:32:20,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 15:32:20,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 15:32:20,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 15:32:20,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 15:32:20,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 15:32:20,837 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-12-19 15:32:20,854 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 15:32:20,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 15:32:20,856 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 15:32:20,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 15:32:20,857 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-19 15:32:20,857 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-19 15:32:20,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 15:32:20,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 15:32:20,858 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 15:32:20,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 15:32:20,859 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 15:32:20,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 15:32:20,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 15:32:20,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-19 15:32:20,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-19 15:32:20,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-19 15:32:20,859 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-19 15:32:20,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 15:32:20,860 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 15:32:20,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-19 15:32:20,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 15:32:20,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 15:32:20,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-19 15:32:20,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:32:20,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 15:32:20,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-19 15:32:20,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-19 15:32:20,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 15:32:20,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-19 15:32:20,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-19 15:32:20,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 15:32:20,862 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de0fc62ae58e6d221c3194714bc6cea21909b72dd1b37b4566b87d84683f34c8 [2021-12-19 15:32:21,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 15:32:21,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 15:32:21,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 15:32:21,098 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 15:32:21,099 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 15:32:21,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/hostid.i [2021-12-19 15:32:21,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83ce13e6a/f0e5e2a583db48319cc41d8d88e53ed9/FLAG117c10efb [2021-12-19 15:32:21,681 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 15:32:21,681 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/hostid.i [2021-12-19 15:32:21,695 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83ce13e6a/f0e5e2a583db48319cc41d8d88e53ed9/FLAG117c10efb [2021-12-19 15:32:21,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83ce13e6a/f0e5e2a583db48319cc41d8d88e53ed9 [2021-12-19 15:32:21,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 15:32:21,973 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 15:32:21,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 15:32:21,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 15:32:21,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 15:32:21,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:32:21" (1/1) ... [2021-12-19 15:32:21,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27db7271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:32:21, skipping insertion in model container [2021-12-19 15:32:21,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:32:21" (1/1) ... [2021-12-19 15:32:21,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 15:32:22,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 15:32:22,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:32:22,670 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 15:32:22,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:32:22,795 INFO L208 MainTranslator]: Completed translation [2021-12-19 15:32:22,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:32:22 WrapperNode [2021-12-19 15:32:22,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 15:32:22,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 15:32:22,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 15:32:22,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 15:32:22,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:32:22" (1/1) ... [2021-12-19 15:32:22,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:32:22" (1/1) ... [2021-12-19 15:32:22,836 INFO L137 Inliner]: procedures = 524, calls = 68, calls flagged for inlining = 7, calls inlined = 6, statements flattened = 145 [2021-12-19 15:32:22,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 15:32:22,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 15:32:22,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 15:32:22,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 15:32:22,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:32:22" (1/1) ... [2021-12-19 15:32:22,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:32:22" (1/1) ... [2021-12-19 15:32:22,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:32:22" (1/1) ... [2021-12-19 15:32:22,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:32:22" (1/1) ... [2021-12-19 15:32:22,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:32:22" (1/1) ... [2021-12-19 15:32:22,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:32:22" (1/1) ... [2021-12-19 15:32:22,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:32:22" (1/1) ... [2021-12-19 15:32:22,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 15:32:22,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 15:32:22,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 15:32:22,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 15:32:22,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:32:22" (1/1) ... [2021-12-19 15:32:22,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:32:22,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:32:22,903 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-19 15:32:22,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-19 15:32:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-19 15:32:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-19 15:32:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2021-12-19 15:32:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 15:32:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-19 15:32:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 15:32:22,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 15:32:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-19 15:32:22,934 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-19 15:32:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-19 15:32:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-19 15:32:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 15:32:23,181 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 15:32:23,183 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 15:32:23,338 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 15:32:23,343 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 15:32:23,343 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-19 15:32:23,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:32:23 BoogieIcfgContainer [2021-12-19 15:32:23,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 15:32:23,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-19 15:32:23,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-19 15:32:23,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-19 15:32:23,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:32:21" (1/3) ... [2021-12-19 15:32:23,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654c8a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:32:23, skipping insertion in model container [2021-12-19 15:32:23,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:32:22" (2/3) ... [2021-12-19 15:32:23,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654c8a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:32:23, skipping insertion in model container [2021-12-19 15:32:23,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:32:23" (3/3) ... [2021-12-19 15:32:23,350 INFO L111 eAbstractionObserver]: Analyzing ICFG hostid.i [2021-12-19 15:32:23,353 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-19 15:32:23,354 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-12-19 15:32:23,394 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-19 15:32:23,400 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 [2021-12-19 15:32:23,400 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-12-19 15:32:23,418 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 32 states have (on average 1.6875) internal successors, (54), 44 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:23,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-19 15:32:23,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:23,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-19 15:32:23,421 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-12-19 15:32:23,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:23,425 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-12-19 15:32:23,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:23,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905689817] [2021-12-19 15:32:23,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:23,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:23,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:32:23,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:23,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905689817] [2021-12-19 15:32:23,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905689817] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:32:23,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:32:23,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 15:32:23,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342404663] [2021-12-19 15:32:23,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:32:23,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 15:32:23,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:23,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 15:32:23,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:32:23,679 INFO L87 Difference]: Start difference. First operand has 47 states, 32 states have (on average 1.6875) internal successors, (54), 44 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:32:23,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:23,717 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2021-12-19 15:32:23,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 15:32:23,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-12-19 15:32:23,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:23,727 INFO L225 Difference]: With dead ends: 92 [2021-12-19 15:32:23,727 INFO L226 Difference]: Without dead ends: 46 [2021-12-19 15:32:23,730 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 [2021-12-19 15:32:23,733 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 1 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:23,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 92 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:32:23,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-12-19 15:32:23,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-12-19 15:32:23,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 32 states have (on average 1.5) internal successors, (48), 43 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:23,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2021-12-19 15:32:23,759 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 4 [2021-12-19 15:32:23,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:23,759 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2021-12-19 15:32:23,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:32:23,760 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2021-12-19 15:32:23,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-19 15:32:23,762 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:23,762 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-12-19 15:32:23,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-19 15:32:23,762 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-12-19 15:32:23,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:23,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1809705867, now seen corresponding path program 1 times [2021-12-19 15:32:23,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:23,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239171571] [2021-12-19 15:32:23,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:23,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:23,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-19 15:32:23,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:23,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239171571] [2021-12-19 15:32:23,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239171571] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:32:23,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:32:23,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 15:32:23,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040594460] [2021-12-19 15:32:23,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:32:23,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 15:32:23,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:23,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 15:32:23,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:32:23,852 INFO L87 Difference]: Start difference. First operand 46 states and 50 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) [2021-12-19 15:32:23,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:23,869 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2021-12-19 15:32:23,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 15:32:23,870 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 [2021-12-19 15:32:23,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:23,871 INFO L225 Difference]: With dead ends: 46 [2021-12-19 15:32:23,871 INFO L226 Difference]: Without dead ends: 45 [2021-12-19 15:32:23,883 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 [2021-12-19 15:32:23,884 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 2 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:23,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 82 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:32:23,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-12-19 15:32:23,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-12-19 15:32:23,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 32 states have (on average 1.46875) internal successors, (47), 42 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:23,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2021-12-19 15:32:23,899 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 7 [2021-12-19 15:32:23,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:23,900 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2021-12-19 15:32:23,900 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) [2021-12-19 15:32:23,901 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2021-12-19 15:32:23,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-19 15:32:23,904 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:23,904 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2021-12-19 15:32:23,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-19 15:32:23,905 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-12-19 15:32:23,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:23,905 INFO L85 PathProgramCache]: Analyzing trace with hash 266307074, now seen corresponding path program 1 times [2021-12-19 15:32:23,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:23,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262779298] [2021-12-19 15:32:23,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:23,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:23,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:32:23,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:23,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262779298] [2021-12-19 15:32:23,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262779298] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:32:23,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755734386] [2021-12-19 15:32:23,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:23,983 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:23,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:32:23,996 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:32:23,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-19 15:32:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:24,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 15:32:24,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:32:24,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:32:24,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 15:32:24,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755734386] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:32:24,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-19 15:32:24,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-12-19 15:32:24,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999962311] [2021-12-19 15:32:24,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:32:24,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:32:24,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:24,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:32:24,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:32:24,155 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2021-12-19 15:32:24,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:24,175 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2021-12-19 15:32:24,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 15:32:24,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 [2021-12-19 15:32:24,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:24,176 INFO L225 Difference]: With dead ends: 45 [2021-12-19 15:32:24,177 INFO L226 Difference]: Without dead ends: 44 [2021-12-19 15:32:24,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:32:24,178 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 35 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:24,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 51 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:32:24,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-12-19 15:32:24,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2021-12-19 15:32:24,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 39 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:24,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2021-12-19 15:32:24,182 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 8 [2021-12-19 15:32:24,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:24,182 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2021-12-19 15:32:24,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2021-12-19 15:32:24,182 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2021-12-19 15:32:24,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-19 15:32:24,183 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:24,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:32:24,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-19 15:32:24,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:24,400 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-12-19 15:32:24,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:24,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1124243910, now seen corresponding path program 1 times [2021-12-19 15:32:24,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:24,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784987270] [2021-12-19 15:32:24,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:24,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:24,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-19 15:32:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:24,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:32:24,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:24,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784987270] [2021-12-19 15:32:24,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784987270] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:32:24,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903243398] [2021-12-19 15:32:24,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:24,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:24,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:32:24,489 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:32:24,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-19 15:32:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:24,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 15:32:24,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:32:24,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:32:24,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:32:24,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:32:24,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903243398] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:32:24,779 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:32:24,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-12-19 15:32:24,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734265918] [2021-12-19 15:32:24,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:32:24,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-19 15:32:24,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:24,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-19 15:32:24,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-19 15:32:24,781 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-19 15:32:24,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:24,802 INFO L93 Difference]: Finished difference Result 87 states and 97 transitions. [2021-12-19 15:32:24,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 15:32:24,802 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2021-12-19 15:32:24,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:24,803 INFO L225 Difference]: With dead ends: 87 [2021-12-19 15:32:24,803 INFO L226 Difference]: Without dead ends: 51 [2021-12-19 15:32:24,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-19 15:32:24,804 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 12 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:24,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 82 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:32:24,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-12-19 15:32:24,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-12-19 15:32:24,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 39 states have (on average 1.358974358974359) internal successors, (53), 48 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:24,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2021-12-19 15:32:24,823 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 13 [2021-12-19 15:32:24,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:24,823 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2021-12-19 15:32:24,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-19 15:32:24,823 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2021-12-19 15:32:24,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-19 15:32:24,824 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:24,824 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:32:24,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-19 15:32:25,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-19 15:32:25,040 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-12-19 15:32:25,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:25,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1933933556, now seen corresponding path program 2 times [2021-12-19 15:32:25,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:25,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474679807] [2021-12-19 15:32:25,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:25,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:25,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-19 15:32:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:25,150 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:32:25,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:25,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474679807] [2021-12-19 15:32:25,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474679807] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:32:25,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052192726] [2021-12-19 15:32:25,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-19 15:32:25,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:25,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:32:25,174 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:32:25,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-19 15:32:25,272 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-19 15:32:25,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:32:25,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-19 15:32:25,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:32:25,353 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-19 15:32:25,353 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 15:32:25,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052192726] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:32:25,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-19 15:32:25,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2021-12-19 15:32:25,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766267927] [2021-12-19 15:32:25,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:32:25,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 15:32:25,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:25,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 15:32:25,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-19 15:32:25,354 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:25,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:25,391 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2021-12-19 15:32:25,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 15:32:25,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-12-19 15:32:25,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:25,392 INFO L225 Difference]: With dead ends: 51 [2021-12-19 15:32:25,392 INFO L226 Difference]: Without dead ends: 47 [2021-12-19 15:32:25,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-12-19 15:32:25,393 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 31 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:25,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 95 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:32:25,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-12-19 15:32:25,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-12-19 15:32:25,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 44 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:25,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2021-12-19 15:32:25,397 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 22 [2021-12-19 15:32:25,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:25,397 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2021-12-19 15:32:25,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:25,397 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2021-12-19 15:32:25,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-19 15:32:25,397 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:25,397 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:32:25,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-19 15:32:25,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:25,616 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-12-19 15:32:25,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:25,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1799100150, now seen corresponding path program 1 times [2021-12-19 15:32:25,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:25,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098792189] [2021-12-19 15:32:25,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:25,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:25,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-19 15:32:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:25,704 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-19 15:32:25,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:25,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098792189] [2021-12-19 15:32:25,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098792189] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:32:25,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:32:25,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:32:25,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719398624] [2021-12-19 15:32:25,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:32:25,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 15:32:25,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:25,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 15:32:25,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:32:25,709 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:25,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:25,725 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2021-12-19 15:32:25,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 15:32:25,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-12-19 15:32:25,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:25,727 INFO L225 Difference]: With dead ends: 72 [2021-12-19 15:32:25,727 INFO L226 Difference]: Without dead ends: 50 [2021-12-19 15:32:25,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:32:25,729 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:25,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 71 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:32:25,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-12-19 15:32:25,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-12-19 15:32:25,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 47 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:25,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2021-12-19 15:32:25,748 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 28 [2021-12-19 15:32:25,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:25,748 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2021-12-19 15:32:25,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:25,749 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2021-12-19 15:32:25,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-19 15:32:25,749 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:25,749 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:32:25,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-19 15:32:25,750 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-12-19 15:32:25,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:25,750 INFO L85 PathProgramCache]: Analyzing trace with hash -93965126, now seen corresponding path program 1 times [2021-12-19 15:32:25,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:25,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944475327] [2021-12-19 15:32:25,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:25,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:25,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-19 15:32:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:25,846 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-19 15:32:25,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:25,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944475327] [2021-12-19 15:32:25,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944475327] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:32:25,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:32:25,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 15:32:25,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242267781] [2021-12-19 15:32:25,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:32:25,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 15:32:25,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:25,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 15:32:25,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:32:25,848 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:25,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:25,868 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2021-12-19 15:32:25,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 15:32:25,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-12-19 15:32:25,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:25,869 INFO L225 Difference]: With dead ends: 75 [2021-12-19 15:32:25,870 INFO L226 Difference]: Without dead ends: 73 [2021-12-19 15:32:25,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:32:25,870 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 17 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:25,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 68 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:32:25,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-12-19 15:32:25,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 59. [2021-12-19 15:32:25,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 56 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:25,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 67 transitions. [2021-12-19 15:32:25,874 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 67 transitions. Word has length 31 [2021-12-19 15:32:25,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:25,875 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 67 transitions. [2021-12-19 15:32:25,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:25,875 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 67 transitions. [2021-12-19 15:32:25,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-19 15:32:25,875 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:25,876 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:32:25,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-19 15:32:25,876 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-12-19 15:32:25,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:25,876 INFO L85 PathProgramCache]: Analyzing trace with hash -93965071, now seen corresponding path program 1 times [2021-12-19 15:32:25,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:25,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278774221] [2021-12-19 15:32:25,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:25,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:25,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-19 15:32:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:25,935 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-19 15:32:25,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:25,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278774221] [2021-12-19 15:32:25,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278774221] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:32:25,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:32:25,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 15:32:25,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456463441] [2021-12-19 15:32:25,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:32:25,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 15:32:25,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:25,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 15:32:25,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:32:25,937 INFO L87 Difference]: Start difference. First operand 59 states and 67 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:25,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:25,946 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2021-12-19 15:32:25,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 15:32:25,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-12-19 15:32:25,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:25,947 INFO L225 Difference]: With dead ends: 59 [2021-12-19 15:32:25,947 INFO L226 Difference]: Without dead ends: 58 [2021-12-19 15:32:25,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:32:25,948 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 2 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:25,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 69 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:32:25,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-12-19 15:32:25,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-12-19 15:32:25,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 55 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:25,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2021-12-19 15:32:25,951 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 31 [2021-12-19 15:32:25,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:25,951 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2021-12-19 15:32:25,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:25,951 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2021-12-19 15:32:25,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-19 15:32:25,952 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:25,952 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:32:25,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-19 15:32:25,952 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-12-19 15:32:25,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:25,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1382050174, now seen corresponding path program 1 times [2021-12-19 15:32:25,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:25,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126407176] [2021-12-19 15:32:25,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:25,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:26,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-19 15:32:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:26,035 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-19 15:32:26,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:26,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126407176] [2021-12-19 15:32:26,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126407176] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:32:26,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860075477] [2021-12-19 15:32:26,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:26,036 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:26,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:32:26,052 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:32:26,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-19 15:32:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:26,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-19 15:32:26,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:32:26,272 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-19 15:32:26,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:32:26,357 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-19 15:32:26,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860075477] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:32:26,357 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:32:26,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2021-12-19 15:32:26,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758910659] [2021-12-19 15:32:26,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:32:26,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-19 15:32:26,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:26,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-19 15:32:26,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2021-12-19 15:32:26,359 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-19 15:32:26,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:26,417 INFO L93 Difference]: Finished difference Result 130 states and 151 transitions. [2021-12-19 15:32:26,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-19 15:32:26,418 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2021-12-19 15:32:26,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:26,419 INFO L225 Difference]: With dead ends: 130 [2021-12-19 15:32:26,419 INFO L226 Difference]: Without dead ends: 87 [2021-12-19 15:32:26,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2021-12-19 15:32:26,420 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 49 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:26,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 207 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:32:26,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-12-19 15:32:26,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 71. [2021-12-19 15:32:26,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 65 states have (on average 1.1538461538461537) internal successors, (75), 68 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:26,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 77 transitions. [2021-12-19 15:32:26,423 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 77 transitions. Word has length 32 [2021-12-19 15:32:26,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:26,424 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 77 transitions. [2021-12-19 15:32:26,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-19 15:32:26,424 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 77 transitions. [2021-12-19 15:32:26,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-19 15:32:26,425 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:26,425 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:32:26,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-19 15:32:26,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:26,642 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-12-19 15:32:26,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:26,643 INFO L85 PathProgramCache]: Analyzing trace with hash -450645462, now seen corresponding path program 1 times [2021-12-19 15:32:26,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:26,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114384044] [2021-12-19 15:32:26,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:26,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:26,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-19 15:32:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:26,705 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-12-19 15:32:26,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:26,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114384044] [2021-12-19 15:32:26,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114384044] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:32:26,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:32:26,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 15:32:26,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947445851] [2021-12-19 15:32:26,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:32:26,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 15:32:26,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:26,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 15:32:26,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:32:26,720 INFO L87 Difference]: Start difference. First operand 71 states and 77 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:26,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:26,730 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2021-12-19 15:32:26,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 15:32:26,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2021-12-19 15:32:26,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:26,731 INFO L225 Difference]: With dead ends: 76 [2021-12-19 15:32:26,731 INFO L226 Difference]: Without dead ends: 74 [2021-12-19 15:32:26,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:32:26,732 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 1 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:26,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 68 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:32:26,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-12-19 15:32:26,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-12-19 15:32:26,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 68 states have (on average 1.1470588235294117) internal successors, (78), 71 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:26,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 80 transitions. [2021-12-19 15:32:26,735 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 80 transitions. Word has length 52 [2021-12-19 15:32:26,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:26,735 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 80 transitions. [2021-12-19 15:32:26,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:26,736 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 80 transitions. [2021-12-19 15:32:26,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-19 15:32:26,736 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:26,737 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:32:26,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-19 15:32:26,737 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-12-19 15:32:26,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:26,737 INFO L85 PathProgramCache]: Analyzing trace with hash 888925871, now seen corresponding path program 1 times [2021-12-19 15:32:26,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:26,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464533563] [2021-12-19 15:32:26,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:26,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:26,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-19 15:32:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:26,803 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-12-19 15:32:26,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:26,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464533563] [2021-12-19 15:32:26,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464533563] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:32:26,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697815180] [2021-12-19 15:32:26,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:26,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:26,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:32:26,805 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:32:26,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-19 15:32:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:26,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 15:32:26,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:32:27,045 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-12-19 15:32:27,045 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 15:32:27,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697815180] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:32:27,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-19 15:32:27,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2021-12-19 15:32:27,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961649565] [2021-12-19 15:32:27,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:32:27,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 15:32:27,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:27,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 15:32:27,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-19 15:32:27,047 INFO L87 Difference]: Start difference. First operand 74 states and 80 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:27,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:27,094 INFO L93 Difference]: Finished difference Result 89 states and 96 transitions. [2021-12-19 15:32:27,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 15:32:27,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2021-12-19 15:32:27,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:27,095 INFO L225 Difference]: With dead ends: 89 [2021-12-19 15:32:27,095 INFO L226 Difference]: Without dead ends: 74 [2021-12-19 15:32:27,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-12-19 15:32:27,096 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 18 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:27,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 110 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:32:27,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-12-19 15:32:27,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-12-19 15:32:27,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 68 states have (on average 1.1323529411764706) internal successors, (77), 71 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:27,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2021-12-19 15:32:27,099 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 55 [2021-12-19 15:32:27,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:27,099 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2021-12-19 15:32:27,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:27,099 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2021-12-19 15:32:27,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-19 15:32:27,100 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:27,100 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:32:27,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-19 15:32:27,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-19 15:32:27,318 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-12-19 15:32:27,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:27,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1403960082, now seen corresponding path program 1 times [2021-12-19 15:32:27,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:27,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379706157] [2021-12-19 15:32:27,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:27,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:27,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-19 15:32:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:27,415 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-12-19 15:32:27,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:27,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379706157] [2021-12-19 15:32:27,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379706157] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:32:27,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729482160] [2021-12-19 15:32:27,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:27,415 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:27,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:32:27,432 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:32:27,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-19 15:32:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:27,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 15:32:27,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:32:27,786 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-12-19 15:32:27,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:32:27,851 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-12-19 15:32:27,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729482160] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:32:27,851 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:32:27,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-12-19 15:32:27,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544572011] [2021-12-19 15:32:27,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:32:27,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-19 15:32:27,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:27,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-19 15:32:27,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-19 15:32:27,853 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:27,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:27,871 INFO L93 Difference]: Finished difference Result 118 states and 132 transitions. [2021-12-19 15:32:27,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 15:32:27,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2021-12-19 15:32:27,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:27,872 INFO L225 Difference]: With dead ends: 118 [2021-12-19 15:32:27,872 INFO L226 Difference]: Without dead ends: 92 [2021-12-19 15:32:27,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-19 15:32:27,873 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 8 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:27,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 102 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:32:27,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-12-19 15:32:27,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-12-19 15:32:27,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 86 states have (on average 1.1046511627906976) internal successors, (95), 89 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:27,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 97 transitions. [2021-12-19 15:32:27,877 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 97 transitions. Word has length 56 [2021-12-19 15:32:27,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:27,877 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 97 transitions. [2021-12-19 15:32:27,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:27,877 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 97 transitions. [2021-12-19 15:32:27,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-19 15:32:27,878 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:27,878 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:32:27,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-19 15:32:28,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:28,092 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-12-19 15:32:28,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:28,092 INFO L85 PathProgramCache]: Analyzing trace with hash 2117424631, now seen corresponding path program 1 times [2021-12-19 15:32:28,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:28,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052511655] [2021-12-19 15:32:28,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:28,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:28,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-19 15:32:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:28,207 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-19 15:32:28,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:28,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052511655] [2021-12-19 15:32:28,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052511655] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:32:28,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387919735] [2021-12-19 15:32:28,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:28,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:28,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:32:28,224 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:32:28,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-19 15:32:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:28,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-19 15:32:28,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:32:28,710 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-12-19 15:32:28,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:32:28,831 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-12-19 15:32:28,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387919735] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:32:28,832 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:32:28,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2021-12-19 15:32:28,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295763384] [2021-12-19 15:32:28,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:32:28,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-19 15:32:28,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:28,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-19 15:32:28,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-12-19 15:32:28,833 INFO L87 Difference]: Start difference. First operand 92 states and 97 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:28,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:28,887 INFO L93 Difference]: Finished difference Result 166 states and 188 transitions. [2021-12-19 15:32:28,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-19 15:32:28,887 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2021-12-19 15:32:28,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:28,888 INFO L225 Difference]: With dead ends: 166 [2021-12-19 15:32:28,888 INFO L226 Difference]: Without dead ends: 131 [2021-12-19 15:32:28,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-12-19 15:32:28,888 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 23 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:28,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 177 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:32:28,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-12-19 15:32:28,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2021-12-19 15:32:28,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 124 states have (on average 1.0725806451612903) internal successors, (133), 127 states have internal predecessors, (133), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:28,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 135 transitions. [2021-12-19 15:32:28,892 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 135 transitions. Word has length 71 [2021-12-19 15:32:28,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:28,892 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 135 transitions. [2021-12-19 15:32:28,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:28,893 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 135 transitions. [2021-12-19 15:32:28,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-19 15:32:28,894 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:28,894 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:32:28,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-19 15:32:29,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:29,111 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-12-19 15:32:29,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:29,112 INFO L85 PathProgramCache]: Analyzing trace with hash 889560927, now seen corresponding path program 1 times [2021-12-19 15:32:29,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:29,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239703175] [2021-12-19 15:32:29,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:29,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:29,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-19 15:32:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:29,215 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2021-12-19 15:32:29,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:29,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239703175] [2021-12-19 15:32:29,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239703175] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:32:29,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501830153] [2021-12-19 15:32:29,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:29,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:29,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:32:29,217 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:32:29,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-19 15:32:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:29,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 15:32:29,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:32:29,589 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2021-12-19 15:32:29,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 15:32:29,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501830153] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:32:29,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-19 15:32:29,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-12-19 15:32:29,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423408847] [2021-12-19 15:32:29,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:32:29,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:32:29,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:29,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:32:29,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:32:29,591 INFO L87 Difference]: Start difference. First operand 130 states and 135 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:29,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:29,602 INFO L93 Difference]: Finished difference Result 130 states and 135 transitions. [2021-12-19 15:32:29,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 15:32:29,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2021-12-19 15:32:29,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:29,603 INFO L225 Difference]: With dead ends: 130 [2021-12-19 15:32:29,604 INFO L226 Difference]: Without dead ends: 129 [2021-12-19 15:32:29,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:32:29,604 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 2 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:29,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 66 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:32:29,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-12-19 15:32:29,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-12-19 15:32:29,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 124 states have (on average 1.064516129032258) internal successors, (132), 126 states have internal predecessors, (132), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:29,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 134 transitions. [2021-12-19 15:32:29,608 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 134 transitions. Word has length 90 [2021-12-19 15:32:29,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:29,608 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 134 transitions. [2021-12-19 15:32:29,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:29,609 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 134 transitions. [2021-12-19 15:32:29,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-19 15:32:29,609 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:29,610 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:32:29,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-19 15:32:29,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-19 15:32:29,828 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-12-19 15:32:29,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:29,828 INFO L85 PathProgramCache]: Analyzing trace with hash 169562562, now seen corresponding path program 2 times [2021-12-19 15:32:29,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:29,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280453365] [2021-12-19 15:32:29,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:29,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:29,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-19 15:32:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:29,956 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-12-19 15:32:29,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:29,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280453365] [2021-12-19 15:32:29,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280453365] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:32:29,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269731873] [2021-12-19 15:32:29,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-19 15:32:29,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:29,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:32:29,972 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:32:30,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-19 15:32:30,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-19 15:32:30,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:32:30,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 15:32:30,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:32:30,363 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-12-19 15:32:30,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:32:30,498 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-12-19 15:32:30,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269731873] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:32:30,498 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:32:30,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-12-19 15:32:30,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061067121] [2021-12-19 15:32:30,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:32:30,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-19 15:32:30,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:30,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-19 15:32:30,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-19 15:32:30,502 INFO L87 Difference]: Start difference. First operand 129 states and 134 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:30,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:30,554 INFO L93 Difference]: Finished difference Result 129 states and 134 transitions. [2021-12-19 15:32:30,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 15:32:30,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2021-12-19 15:32:30,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:30,555 INFO L225 Difference]: With dead ends: 129 [2021-12-19 15:32:30,555 INFO L226 Difference]: Without dead ends: 113 [2021-12-19 15:32:30,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-19 15:32:30,555 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 5 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:30,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 95 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:32:30,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-12-19 15:32:30,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-12-19 15:32:30,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 109 states have (on average 1.0458715596330275) internal successors, (114), 110 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:30,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 116 transitions. [2021-12-19 15:32:30,559 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 116 transitions. Word has length 92 [2021-12-19 15:32:30,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:30,559 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 116 transitions. [2021-12-19 15:32:30,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:30,559 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 116 transitions. [2021-12-19 15:32:30,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-19 15:32:30,559 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:30,560 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:32:30,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-19 15:32:30,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-19 15:32:30,767 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-12-19 15:32:30,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:30,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1404007810, now seen corresponding path program 2 times [2021-12-19 15:32:30,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:30,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459365254] [2021-12-19 15:32:30,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:30,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:30,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-19 15:32:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 0 proven. 323 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-19 15:32:30,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:30,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459365254] [2021-12-19 15:32:30,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459365254] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:32:30,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315270993] [2021-12-19 15:32:30,975 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-19 15:32:30,975 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:30,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:32:30,976 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:32:31,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-19 15:32:31,248 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-19 15:32:31,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:32:31,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 15:32:31,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:32:31,423 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 0 proven. 322 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2021-12-19 15:32:31,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:32:31,563 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 0 proven. 322 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2021-12-19 15:32:31,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315270993] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:32:31,564 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:32:31,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2021-12-19 15:32:31,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635168297] [2021-12-19 15:32:31,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:32:31,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-19 15:32:31,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:31,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-19 15:32:31,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-19 15:32:31,566 INFO L87 Difference]: Start difference. First operand 113 states and 116 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:31,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:31,623 INFO L93 Difference]: Finished difference Result 148 states and 154 transitions. [2021-12-19 15:32:31,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-19 15:32:31,623 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2021-12-19 15:32:31,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:31,624 INFO L225 Difference]: With dead ends: 148 [2021-12-19 15:32:31,624 INFO L226 Difference]: Without dead ends: 147 [2021-12-19 15:32:31,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2021-12-19 15:32:31,625 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:31,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 63 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:32:31,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-12-19 15:32:31,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 112. [2021-12-19 15:32:31,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 109 states have (on average 1.036697247706422) internal successors, (113), 109 states have internal predecessors, (113), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:31,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 115 transitions. [2021-12-19 15:32:31,650 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 115 transitions. Word has length 110 [2021-12-19 15:32:31,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:31,650 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 115 transitions. [2021-12-19 15:32:31,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:31,650 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 115 transitions. [2021-12-19 15:32:31,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-19 15:32:31,651 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:31,651 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:32:31,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-19 15:32:31,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-19 15:32:31,859 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-12-19 15:32:31,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:31,860 INFO L85 PathProgramCache]: Analyzing trace with hash 574569236, now seen corresponding path program 1 times [2021-12-19 15:32:31,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:31,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052729666] [2021-12-19 15:32:31,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:31,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:31,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:32,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-19 15:32:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:32,009 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-19 15:32:32,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:32,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052729666] [2021-12-19 15:32:32,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052729666] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:32:32,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571360426] [2021-12-19 15:32:32,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:32,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:32,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:32:32,028 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:32:32,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-19 15:32:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:32,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 15:32:32,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:32:32,618 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-19 15:32:32,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 15:32:32,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571360426] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:32:32,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-19 15:32:32,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-12-19 15:32:32,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409586728] [2021-12-19 15:32:32,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:32:32,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:32:32,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:32,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:32:32,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:32:32,620 INFO L87 Difference]: Start difference. First operand 112 states and 115 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:32,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:32,640 INFO L93 Difference]: Finished difference Result 112 states and 115 transitions. [2021-12-19 15:32:32,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 15:32:32,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2021-12-19 15:32:32,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:32,641 INFO L225 Difference]: With dead ends: 112 [2021-12-19 15:32:32,641 INFO L226 Difference]: Without dead ends: 0 [2021-12-19 15:32:32,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:32:32,642 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:32,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:32:32,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-19 15:32:32,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-19 15:32:32,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:32:32,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-19 15:32:32,643 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 111 [2021-12-19 15:32:32,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:32,643 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 15:32:32,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:32:32,643 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-19 15:32:32,643 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-19 15:32:32,645 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2021-12-19 15:32:32,646 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2021-12-19 15:32:32,646 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2021-12-19 15:32:32,646 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2021-12-19 15:32:32,646 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2021-12-19 15:32:32,646 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2021-12-19 15:32:32,647 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2021-12-19 15:32:32,647 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2021-12-19 15:32:32,647 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2021-12-19 15:32:32,647 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2021-12-19 15:32:32,647 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2021-12-19 15:32:32,647 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2021-12-19 15:32:32,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-19 15:32:32,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-19 15:32:32,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-19 15:32:33,162 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2021-12-19 15:32:33,162 INFO L858 garLoopResultBuilder]: For program point L1889-2(lines 1889 1896) no Hoare annotation was computed. [2021-12-19 15:32:33,162 INFO L858 garLoopResultBuilder]: For program point L1889-3(line 1889) no Hoare annotation was computed. [2021-12-19 15:32:33,162 INFO L854 garLoopResultBuilder]: At program point L1885(line 1885) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~argc~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~i~3#1|)) [2021-12-19 15:32:33,162 INFO L854 garLoopResultBuilder]: At program point L1889-4(lines 1889 1896) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~argc~0#1| 10000)) (.cse1 (<= 1 |ULTIMATE.start_main_~argc~0#1|)) (.cse2 (<= 1 |ULTIMATE.start_main_~i~3#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~i~4#1| 0) .cse2) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~i~4#1| 2147483646) (<= 1 |ULTIMATE.start_main_~i~4#1|) (<= 1 |ULTIMATE.start_main_~j~0#1|) .cse2))) [2021-12-19 15:32:33,162 INFO L858 garLoopResultBuilder]: For program point L1885-1(line 1885) no Hoare annotation was computed. [2021-12-19 15:32:33,162 INFO L858 garLoopResultBuilder]: For program point L1889-5(lines 1889 1896) no Hoare annotation was computed. [2021-12-19 15:32:33,162 INFO L858 garLoopResultBuilder]: For program point L1782(lines 1782 1783) no Hoare annotation was computed. [2021-12-19 15:32:33,162 INFO L858 garLoopResultBuilder]: For program point L1782-2(lines 1782 1783) no Hoare annotation was computed. [2021-12-19 15:32:33,163 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1898) no Hoare annotation was computed. [2021-12-19 15:32:33,163 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1894) no Hoare annotation was computed. [2021-12-19 15:32:33,163 INFO L858 garLoopResultBuilder]: For program point L1898-2(lines 1898 1899) no Hoare annotation was computed. [2021-12-19 15:32:33,163 INFO L858 garLoopResultBuilder]: For program point L1898-3(line 1898) no Hoare annotation was computed. [2021-12-19 15:32:33,163 INFO L854 garLoopResultBuilder]: At program point L1898-4(lines 1898 1899) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~argc~0#1| 10000)) (.cse1 (<= 1 |ULTIMATE.start_main_~argc~0#1|)) (.cse2 (<= 1 |ULTIMATE.start_main_~i~3#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~i~5#1| 0) .cse2) (and .cse0 (<= 1 |ULTIMATE.start_main_~i~5#1|) .cse1 (<= |ULTIMATE.start_main_~i~5#1| 2147483646) .cse2))) [2021-12-19 15:32:33,163 INFO L858 garLoopResultBuilder]: For program point L1898-5(lines 1898 1899) no Hoare annotation was computed. [2021-12-19 15:32:33,163 INFO L858 garLoopResultBuilder]: For program point L1894-2(lines 1894 1895) no Hoare annotation was computed. [2021-12-19 15:32:33,163 INFO L858 garLoopResultBuilder]: For program point L1894-3(line 1894) no Hoare annotation was computed. [2021-12-19 15:32:33,163 INFO L854 garLoopResultBuilder]: At program point L1894-4(lines 1894 1895) the Hoare annotation is: (let ((.cse2 (< |ULTIMATE.start_main_~i~4#1| 2147483646)) (.cse3 (<= 1 |ULTIMATE.start_main_~i~4#1|)) (.cse4 (<= 1 |ULTIMATE.start_main_~j~0#1|)) (.cse0 (<= |ULTIMATE.start_main_~argc~0#1| 10000)) (.cse6 (= |ULTIMATE.start_main_~j~0#1| 0)) (.cse1 (<= 1 |ULTIMATE.start_main_~argc~0#1|)) (.cse7 (= |ULTIMATE.start_main_~i~4#1| 0)) (.cse5 (<= 1 |ULTIMATE.start_main_~i~3#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse1 .cse2 .cse3 .cse5) (and .cse0 .cse1 .cse7 .cse4 .cse5) (and .cse0 .cse6 .cse1 .cse7 .cse5))) [2021-12-19 15:32:33,163 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-19 15:32:33,163 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1879) no Hoare annotation was computed. [2021-12-19 15:32:33,163 INFO L858 garLoopResultBuilder]: For program point L1886(line 1886) no Hoare annotation was computed. [2021-12-19 15:32:33,163 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-19 15:32:33,163 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2021-12-19 15:32:33,163 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-19 15:32:33,163 INFO L854 garLoopResultBuilder]: At program point L1775(lines 1771 1776) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~argc~0#1| 10000) (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= 1 |ULTIMATE.start_main_~i~3#1|)) [2021-12-19 15:32:33,164 INFO L861 garLoopResultBuilder]: At program point L1903(lines 1875 1904) the Hoare annotation is: true [2021-12-19 15:32:33,164 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1889) no Hoare annotation was computed. [2021-12-19 15:32:33,164 INFO L858 garLoopResultBuilder]: For program point L1767(lines 1767 1770) no Hoare annotation was computed. [2021-12-19 15:32:33,164 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1879) no Hoare annotation was computed. [2021-12-19 15:32:33,164 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-19 15:32:33,164 INFO L858 garLoopResultBuilder]: For program point L1887(line 1887) no Hoare annotation was computed. [2021-12-19 15:32:33,164 INFO L858 garLoopResultBuilder]: For program point L1887-1(line 1887) no Hoare annotation was computed. [2021-12-19 15:32:33,164 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2021-12-19 15:32:33,164 INFO L858 garLoopResultBuilder]: For program point L1879-2(lines 1879 1880) no Hoare annotation was computed. [2021-12-19 15:32:33,164 INFO L858 garLoopResultBuilder]: For program point L1879-3(line 1879) no Hoare annotation was computed. [2021-12-19 15:32:33,164 INFO L854 garLoopResultBuilder]: At program point L1879-4(lines 1879 1880) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~3#1| 0) (<= 1 |ULTIMATE.start_main_~i~3#1|)) [2021-12-19 15:32:33,164 INFO L858 garLoopResultBuilder]: For program point L1879-5(lines 1879 1880) no Hoare annotation was computed. [2021-12-19 15:32:33,164 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1889) no Hoare annotation was computed. [2021-12-19 15:32:33,164 INFO L854 garLoopResultBuilder]: At program point L1793(lines 1791 1794) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~argc~0#1| 10000) (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= 1 |ULTIMATE.start_main_~i~3#1|)) [2021-12-19 15:32:33,164 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2021-12-19 15:32:33,165 INFO L854 garLoopResultBuilder]: At program point L1789(lines 1780 1790) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~argc~0#1| 10000) (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= 1 |ULTIMATE.start_main_~i~3#1|)) [2021-12-19 15:32:33,165 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1898) no Hoare annotation was computed. [2021-12-19 15:32:33,165 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1894) no Hoare annotation was computed. [2021-12-19 15:32:33,165 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 8 10) the Hoare annotation is: true [2021-12-19 15:32:33,165 INFO L858 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-12-19 15:32:33,165 INFO L858 garLoopResultBuilder]: For program point L9-2(lines 8 10) no Hoare annotation was computed. [2021-12-19 15:32:33,165 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2021-12-19 15:32:33,170 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:32:33,171 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-19 15:32:33,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 03:32:33 BoogieIcfgContainer [2021-12-19 15:32:33,191 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-19 15:32:33,192 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 15:32:33,192 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 15:32:33,192 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 15:32:33,192 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:32:23" (3/4) ... [2021-12-19 15:32:33,194 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-19 15:32:33,198 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-19 15:32:33,202 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-12-19 15:32:33,202 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-12-19 15:32:33,202 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-19 15:32:33,202 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-19 15:32:33,203 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-19 15:32:33,232 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-19 15:32:33,233 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 15:32:33,234 INFO L158 Benchmark]: Toolchain (without parser) took 11260.79ms. Allocated memory was 86.0MB in the beginning and 224.4MB in the end (delta: 138.4MB). Free memory was 47.7MB in the beginning and 89.8MB in the end (delta: -42.1MB). Peak memory consumption was 97.8MB. Max. memory is 16.1GB. [2021-12-19 15:32:33,247 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 86.0MB. Free memory was 67.5MB in the beginning and 67.4MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 15:32:33,247 INFO L158 Benchmark]: CACSL2BoogieTranslator took 822.12ms. Allocated memory is still 86.0MB. Free memory was 47.5MB in the beginning and 34.3MB in the end (delta: 13.1MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2021-12-19 15:32:33,248 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.10ms. Allocated memory is still 86.0MB. Free memory was 34.3MB in the beginning and 30.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 15:32:33,248 INFO L158 Benchmark]: Boogie Preprocessor took 24.22ms. Allocated memory is still 86.0MB. Free memory was 58.7MB in the beginning and 56.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 15:32:33,248 INFO L158 Benchmark]: RCFGBuilder took 470.86ms. Allocated memory is still 86.0MB. Free memory was 56.1MB in the beginning and 37.3MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-19 15:32:33,248 INFO L158 Benchmark]: TraceAbstraction took 9845.83ms. Allocated memory was 86.0MB in the beginning and 224.4MB in the end (delta: 138.4MB). Free memory was 36.8MB in the beginning and 93.9MB in the end (delta: -57.1MB). Peak memory consumption was 81.5MB. Max. memory is 16.1GB. [2021-12-19 15:32:33,248 INFO L158 Benchmark]: Witness Printer took 41.55ms. Allocated memory is still 224.4MB. Free memory was 93.9MB in the beginning and 89.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-19 15:32:33,249 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 86.0MB. Free memory was 67.5MB in the beginning and 67.4MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 822.12ms. Allocated memory is still 86.0MB. Free memory was 47.5MB in the beginning and 34.3MB in the end (delta: 13.1MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.10ms. Allocated memory is still 86.0MB. Free memory was 34.3MB in the beginning and 30.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.22ms. Allocated memory is still 86.0MB. Free memory was 58.7MB in the beginning and 56.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 470.86ms. Allocated memory is still 86.0MB. Free memory was 56.1MB in the beginning and 37.3MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9845.83ms. Allocated memory was 86.0MB in the beginning and 224.4MB in the end (delta: 138.4MB). Free memory was 36.8MB in the beginning and 93.9MB in the end (delta: -57.1MB). Peak memory consumption was 81.5MB. Max. memory is 16.1GB. * Witness Printer took 41.55ms. Allocated memory is still 224.4MB. Free memory was 93.9MB in the beginning and 89.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1894]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1894]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1889]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1889]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1898]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1898]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 9.8s, OverallIterations: 17, TraceHistogramMax: 20, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 219 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 216 mSDsluCounter, 1551 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 955 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 408 IncrementalHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 596 mSDtfsCounter, 408 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1106 GetRequests, 1024 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=13, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 68 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 13 PreInvPairs, 59 NumberOfFragments, 180 HoareAnnotationTreeSize, 13 FomulaSimplifications, 310 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 10 FomulaSimplificationsInter, 1162 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1473 NumberOfCodeBlocks, 1297 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1813 ConstructedInterpolants, 0 QuantifiedInterpolants, 3129 SizeOfPredicates, 8 NumberOfNonLiveVariables, 4908 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 34 InterpolantComputations, 11 PerfectInterpolantSequences, 5461/6887 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 1771]: Loop Invariant Derived loop invariant: (argc <= 10000 && 1 <= argc) && 1 <= i - InvariantResult [Line: 1791]: Loop Invariant Derived loop invariant: (argc <= 10000 && 1 <= argc) && 1 <= i - InvariantResult [Line: 1879]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 1889]: Loop Invariant Derived loop invariant: (((argc <= 10000 && 1 <= argc) && i == 0) && 1 <= i) || (((((argc <= 10000 && 1 <= argc) && i <= 2147483646) && 1 <= i) && 1 <= j) && 1 <= i) - InvariantResult [Line: 1780]: Loop Invariant Derived loop invariant: (argc <= 10000 && 1 <= argc) && 1 <= i - InvariantResult [Line: 1894]: Loop Invariant Derived loop invariant: (((((((argc <= 10000 && 1 <= argc) && i < 2147483646) && 1 <= i) && 1 <= j) && 1 <= i) || (((((argc <= 10000 && j == 0) && 1 <= argc) && i < 2147483646) && 1 <= i) && 1 <= i)) || ((((argc <= 10000 && 1 <= argc) && i == 0) && 1 <= j) && 1 <= i)) || ((((argc <= 10000 && j == 0) && 1 <= argc) && i == 0) && 1 <= i) - InvariantResult [Line: 1875]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1898]: Loop Invariant Derived loop invariant: (((argc <= 10000 && 1 <= argc) && i == 0) && 1 <= i) || ((((argc <= 10000 && 1 <= i) && 1 <= argc) && i <= 2147483646) && 1 <= i) RESULT: Ultimate proved your program to be correct! [2021-12-19 15:32:33,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE