./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/dirname-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/dirname-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa --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 90eaf2e76e590922119d90e478fc764e383193134f46d6fe59bc98f3ce7c6611 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:10:11,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:10:11,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:10:11,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:10:11,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:10:11,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:10:11,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:10:11,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:10:11,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:10:11,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:10:11,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:10:11,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:10:11,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:10:11,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:10:11,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:10:11,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:10:11,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:10:11,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:10:11,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:10:11,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:10:11,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:10:11,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:10:11,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:10:11,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:10:11,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:10:11,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:10:11,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:10:11,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:10:11,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:10:11,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:10:11,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:10:11,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:10:11,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:10:11,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:10:11,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:10:11,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:10:11,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:10:11,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:10:11,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:10:11,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:10:11,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:10:11,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-12-06 18:10:11,839 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:10:11,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:10:11,839 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:10:11,839 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:10:11,840 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:10:11,840 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:10:11,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:10:11,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:10:11,841 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:10:11,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:10:11,842 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 18:10:11,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:10:11,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:10:11,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:10:11,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:10:11,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:10:11,843 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-06 18:10:11,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:10:11,843 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:10:11,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:10:11,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:10:11,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:10:11,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:10:11,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:10:11,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:10:11,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:10:11,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:10:11,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:10:11,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:10:11,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:10:11,845 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:10:11,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90eaf2e76e590922119d90e478fc764e383193134f46d6fe59bc98f3ce7c6611 [2021-12-06 18:10:12,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:10:12,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:10:12,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:10:12,053 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:10:12,054 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:10:12,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/busybox-1.22.0/dirname-1.i [2021-12-06 18:10:12,097 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/data/283388a16/f87958286a1446d2a866ea38f11a88ab/FLAGd33a62937 [2021-12-06 18:10:12,543 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:10:12,543 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/sv-benchmarks/c/busybox-1.22.0/dirname-1.i [2021-12-06 18:10:12,557 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/data/283388a16/f87958286a1446d2a866ea38f11a88ab/FLAGd33a62937 [2021-12-06 18:10:12,568 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/data/283388a16/f87958286a1446d2a866ea38f11a88ab [2021-12-06 18:10:12,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:10:12,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:10:12,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:10:12,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:10:12,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:10:12,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:10:12" (1/1) ... [2021-12-06 18:10:12,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f6dc9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:12, skipping insertion in model container [2021-12-06 18:10:12,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:10:12" (1/1) ... [2021-12-06 18:10:12,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:10:12,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:10:12,988 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:10:12,997 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:10:13,049 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:10:13,105 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:10:13,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:13 WrapperNode [2021-12-06 18:10:13,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:10:13,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:10:13,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:10:13,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:10:13,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:13" (1/1) ... [2021-12-06 18:10:13,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:13" (1/1) ... [2021-12-06 18:10:13,157 INFO L137 Inliner]: procedures = 345, calls = 111, calls flagged for inlining = 8, calls inlined = 7, statements flattened = 279 [2021-12-06 18:10:13,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:10:13,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:10:13,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:10:13,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:10:13,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:13" (1/1) ... [2021-12-06 18:10:13,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:13" (1/1) ... [2021-12-06 18:10:13,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:13" (1/1) ... [2021-12-06 18:10:13,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:13" (1/1) ... [2021-12-06 18:10:13,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:13" (1/1) ... [2021-12-06 18:10:13,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:13" (1/1) ... [2021-12-06 18:10:13,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:13" (1/1) ... [2021-12-06 18:10:13,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:10:13,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:10:13,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:10:13,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:10:13,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:13" (1/1) ... [2021-12-06 18:10:13,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:10:13,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:10:13,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:10:13,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:10:13,253 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 18:10:13,253 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 18:10:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 18:10:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:10:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 18:10:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 18:10:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-06 18:10:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 18:10:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2021-12-06 18:10:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:10:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 18:10:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:10:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:10:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:10:13,366 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:10:13,368 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:10:13,614 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:10:13,619 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:10:13,619 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-12-06 18:10:13,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:10:13 BoogieIcfgContainer [2021-12-06 18:10:13,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:10:13,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:10:13,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:10:13,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:10:13,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:10:12" (1/3) ... [2021-12-06 18:10:13,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fdb65cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:10:13, skipping insertion in model container [2021-12-06 18:10:13,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:13" (2/3) ... [2021-12-06 18:10:13,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fdb65cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:10:13, skipping insertion in model container [2021-12-06 18:10:13,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:10:13" (3/3) ... [2021-12-06 18:10:13,627 INFO L111 eAbstractionObserver]: Analyzing ICFG dirname-1.i [2021-12-06 18:10:13,631 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:10:13,631 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2021-12-06 18:10:13,665 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:10:13,670 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 [2021-12-06 18:10:13,670 INFO L340 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2021-12-06 18:10:13,683 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 66 states have (on average 1.7575757575757576) internal successors, (116), 90 states have internal predecessors, (116), 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) [2021-12-06 18:10:13,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-06 18:10:13,686 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:13,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-06 18:10:13,687 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:13,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:13,691 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-12-06 18:10:13,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:13,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915205313] [2021-12-06 18:10:13,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:13,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:13,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:10:13,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:13,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915205313] [2021-12-06 18:10:13,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915205313] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:10:13,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:10:13,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:10:13,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859194638] [2021-12-06 18:10:13,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:10:13,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:10:13,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:13,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:10:13,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:10:13,916 INFO L87 Difference]: Start difference. First operand has 93 states, 66 states have (on average 1.7575757575757576) internal successors, (116), 90 states have internal predecessors, (116), 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) [2021-12-06 18:10:13,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:13,959 INFO L93 Difference]: Finished difference Result 182 states and 232 transitions. [2021-12-06 18:10:13,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:10:13,962 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 [2021-12-06 18:10:13,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:13,968 INFO L225 Difference]: With dead ends: 182 [2021-12-06 18:10:13,968 INFO L226 Difference]: Without dead ends: 90 [2021-12-06 18:10:13,971 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 [2021-12-06 18:10:13,974 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 1 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 204 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 [2021-12-06 18:10:13,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 204 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:13,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-12-06 18:10:14,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-12-06 18:10:14,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 64 states have (on average 1.625) internal successors, (104), 87 states have internal predecessors, (104), 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) [2021-12-06 18:10:14,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 106 transitions. [2021-12-06 18:10:14,010 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 106 transitions. Word has length 4 [2021-12-06 18:10:14,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:14,010 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 106 transitions. [2021-12-06 18:10:14,010 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) [2021-12-06 18:10:14,010 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 106 transitions. [2021-12-06 18:10:14,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-06 18:10:14,011 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:14,011 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-12-06 18:10:14,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 18:10:14,012 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:14,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:14,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1809705867, now seen corresponding path program 1 times [2021-12-06 18:10:14,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:14,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491294761] [2021-12-06 18:10:14,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:14,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:14,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 18:10:14,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:14,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491294761] [2021-12-06 18:10:14,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491294761] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:10:14,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:10:14,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:10:14,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093170602] [2021-12-06 18:10:14,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:10:14,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:10:14,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:14,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:10:14,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:10:14,084 INFO L87 Difference]: Start difference. First operand 90 states and 106 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) [2021-12-06 18:10:14,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:14,103 INFO L93 Difference]: Finished difference Result 90 states and 106 transitions. [2021-12-06 18:10:14,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:10:14,104 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 [2021-12-06 18:10:14,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:14,106 INFO L225 Difference]: With dead ends: 90 [2021-12-06 18:10:14,106 INFO L226 Difference]: Without dead ends: 89 [2021-12-06 18:10:14,106 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 [2021-12-06 18:10:14,108 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 2 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 194 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 [2021-12-06 18:10:14,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 194 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:14,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-12-06 18:10:14,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-12-06 18:10:14,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 64 states have (on average 1.609375) internal successors, (103), 86 states have internal predecessors, (103), 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) [2021-12-06 18:10:14,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 105 transitions. [2021-12-06 18:10:14,119 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 105 transitions. Word has length 7 [2021-12-06 18:10:14,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:14,119 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 105 transitions. [2021-12-06 18:10:14,120 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) [2021-12-06 18:10:14,120 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 105 transitions. [2021-12-06 18:10:14,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-06 18:10:14,120 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:14,120 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2021-12-06 18:10:14,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 18:10:14,121 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:14,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:14,122 INFO L85 PathProgramCache]: Analyzing trace with hash 266307074, now seen corresponding path program 1 times [2021-12-06 18:10:14,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:14,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191547080] [2021-12-06 18:10:14,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:14,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:14,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:10:14,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:14,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191547080] [2021-12-06 18:10:14,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191547080] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:10:14,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543029034] [2021-12-06 18:10:14,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:14,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:14,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:10:14,188 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:10:14,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 18:10:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:14,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 18:10:14,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:10:14,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:10:14,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:10:14,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543029034] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:10:14,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:10:14,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-12-06 18:10:14,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987755605] [2021-12-06 18:10:14,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:10:14,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:10:14,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:14,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:10:14,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:10:14,304 INFO L87 Difference]: Start difference. First operand 89 states and 105 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) [2021-12-06 18:10:14,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:14,324 INFO L93 Difference]: Finished difference Result 89 states and 105 transitions. [2021-12-06 18:10:14,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 18:10:14,325 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 [2021-12-06 18:10:14,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:14,326 INFO L225 Difference]: With dead ends: 89 [2021-12-06 18:10:14,326 INFO L226 Difference]: Without dead ends: 88 [2021-12-06 18:10:14,326 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 [2021-12-06 18:10:14,327 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 182 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 102 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 [2021-12-06 18:10:14,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 102 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:14,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-12-06 18:10:14,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2021-12-06 18:10:14,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 62 states have (on average 1.6129032258064515) internal successors, (100), 83 states have internal predecessors, (100), 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) [2021-12-06 18:10:14,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 102 transitions. [2021-12-06 18:10:14,334 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 102 transitions. Word has length 8 [2021-12-06 18:10:14,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:14,335 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 102 transitions. [2021-12-06 18:10:14,335 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) [2021-12-06 18:10:14,335 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 102 transitions. [2021-12-06 18:10:14,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 18:10:14,335 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:14,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:10:14,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 18:10:14,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:14,538 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:14,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:14,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1662112421, now seen corresponding path program 1 times [2021-12-06 18:10:14,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:14,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436134345] [2021-12-06 18:10:14,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:14,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:14,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 18:10:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:14,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:10:14,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:14,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436134345] [2021-12-06 18:10:14,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436134345] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:10:14,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084783526] [2021-12-06 18:10:14,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:14,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:14,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:10:14,692 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:10:14,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 18:10:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:14,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 18:10:14,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:10:14,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:10:14,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:10:14,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:10:14,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084783526] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:10:14,817 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:10:14,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-12-06 18:10:14,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660109383] [2021-12-06 18:10:14,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:10:14,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:10:14,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:14,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:10:14,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:10:14,818 INFO L87 Difference]: Start difference. First operand 86 states and 102 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) [2021-12-06 18:10:14,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:14,843 INFO L93 Difference]: Finished difference Result 175 states and 209 transitions. [2021-12-06 18:10:14,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:10:14,844 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 [2021-12-06 18:10:14,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:14,845 INFO L225 Difference]: With dead ends: 175 [2021-12-06 18:10:14,845 INFO L226 Difference]: Without dead ends: 95 [2021-12-06 18:10:14,846 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 [2021-12-06 18:10:14,847 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 8 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:10:14,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 290 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:14,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-12-06 18:10:14,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-12-06 18:10:14,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 92 states have internal predecessors, (109), 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) [2021-12-06 18:10:14,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 111 transitions. [2021-12-06 18:10:14,857 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 111 transitions. Word has length 13 [2021-12-06 18:10:14,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:14,857 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 111 transitions. [2021-12-06 18:10:14,857 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) [2021-12-06 18:10:14,857 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 111 transitions. [2021-12-06 18:10:14,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-06 18:10:14,858 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:14,858 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:10:14,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 18:10:15,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:15,060 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:15,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:15,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1396065045, now seen corresponding path program 2 times [2021-12-06 18:10:15,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:15,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311468830] [2021-12-06 18:10:15,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:15,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:15,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:10:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:15,245 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:10:15,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:15,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311468830] [2021-12-06 18:10:15,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311468830] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:10:15,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167148611] [2021-12-06 18:10:15,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 18:10:15,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:15,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:10:15,246 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:10:15,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 18:10:15,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 18:10:15,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 18:10:15,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 18:10:15,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:10:15,372 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 18:10:15,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:10:15,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167148611] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:10:15,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:10:15,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2021-12-06 18:10:15,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292610857] [2021-12-06 18:10:15,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:10:15,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:10:15,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:15,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:10:15,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-06 18:10:15,375 INFO L87 Difference]: Start difference. First operand 95 states and 111 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) [2021-12-06 18:10:15,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:15,418 INFO L93 Difference]: Finished difference Result 95 states and 111 transitions. [2021-12-06 18:10:15,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:10:15,419 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 [2021-12-06 18:10:15,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:15,420 INFO L225 Difference]: With dead ends: 95 [2021-12-06 18:10:15,420 INFO L226 Difference]: Without dead ends: 91 [2021-12-06 18:10:15,421 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 [2021-12-06 18:10:15,422 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 87 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 263 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 [2021-12-06 18:10:15,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 263 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:15,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-12-06 18:10:15,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-12-06 18:10:15,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 71 states have (on average 1.4788732394366197) internal successors, (105), 88 states have internal predecessors, (105), 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) [2021-12-06 18:10:15,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 107 transitions. [2021-12-06 18:10:15,431 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 107 transitions. Word has length 22 [2021-12-06 18:10:15,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:15,431 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 107 transitions. [2021-12-06 18:10:15,431 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) [2021-12-06 18:10:15,432 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 107 transitions. [2021-12-06 18:10:15,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-06 18:10:15,432 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:15,433 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:10:15,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 18:10:15,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:15,635 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:15,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:15,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1972300949, now seen corresponding path program 1 times [2021-12-06 18:10:15,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:15,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200938052] [2021-12-06 18:10:15,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:15,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:15,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:10:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:15,822 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 18:10:15,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:15,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200938052] [2021-12-06 18:10:15,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200938052] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:10:15,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:10:15,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:10:15,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342638303] [2021-12-06 18:10:15,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:10:15,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:10:15,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:15,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:10:15,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:10:15,824 INFO L87 Difference]: Start difference. First operand 91 states and 107 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) [2021-12-06 18:10:15,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:15,839 INFO L93 Difference]: Finished difference Result 160 states and 194 transitions. [2021-12-06 18:10:15,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:10:15,839 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 [2021-12-06 18:10:15,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:15,840 INFO L225 Difference]: With dead ends: 160 [2021-12-06 18:10:15,840 INFO L226 Difference]: Without dead ends: 94 [2021-12-06 18:10:15,841 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 [2021-12-06 18:10:15,842 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 2 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 183 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 [2021-12-06 18:10:15,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 183 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:15,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-12-06 18:10:15,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-12-06 18:10:15,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 74 states have (on average 1.4594594594594594) internal successors, (108), 91 states have internal predecessors, (108), 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) [2021-12-06 18:10:15,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 110 transitions. [2021-12-06 18:10:15,848 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 110 transitions. Word has length 28 [2021-12-06 18:10:15,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:15,849 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 110 transitions. [2021-12-06 18:10:15,849 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) [2021-12-06 18:10:15,849 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 110 transitions. [2021-12-06 18:10:15,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-06 18:10:15,850 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:15,850 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] [2021-12-06 18:10:15,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 18:10:15,850 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:15,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:15,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1663245639, now seen corresponding path program 1 times [2021-12-06 18:10:15,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:15,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489255994] [2021-12-06 18:10:15,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:15,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:15,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:10:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:15,917 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-06 18:10:15,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:15,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489255994] [2021-12-06 18:10:15,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489255994] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:10:15,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:10:15,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:10:15,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732070398] [2021-12-06 18:10:15,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:10:15,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:10:15,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:15,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:10:15,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:10:15,918 INFO L87 Difference]: Start difference. First operand 94 states and 110 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) [2021-12-06 18:10:15,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:15,941 INFO L93 Difference]: Finished difference Result 163 states and 194 transitions. [2021-12-06 18:10:15,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:10:15,942 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 [2021-12-06 18:10:15,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:15,943 INFO L225 Difference]: With dead ends: 163 [2021-12-06 18:10:15,943 INFO L226 Difference]: Without dead ends: 161 [2021-12-06 18:10:15,943 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 [2021-12-06 18:10:15,944 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 73 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 180 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 [2021-12-06 18:10:15,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 180 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:15,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-12-06 18:10:15,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 103. [2021-12-06 18:10:15,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 83 states have (on average 1.4578313253012047) internal successors, (121), 100 states have internal predecessors, (121), 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) [2021-12-06 18:10:15,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 123 transitions. [2021-12-06 18:10:15,950 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 123 transitions. Word has length 31 [2021-12-06 18:10:15,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:15,951 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 123 transitions. [2021-12-06 18:10:15,951 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) [2021-12-06 18:10:15,951 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions. [2021-12-06 18:10:15,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-06 18:10:15,952 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:15,952 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] [2021-12-06 18:10:15,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 18:10:15,952 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:15,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:15,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1663245584, now seen corresponding path program 1 times [2021-12-06 18:10:15,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:15,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267316088] [2021-12-06 18:10:15,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:15,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:16,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:10:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:16,015 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-06 18:10:16,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:16,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267316088] [2021-12-06 18:10:16,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267316088] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:10:16,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:10:16,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:10:16,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010396014] [2021-12-06 18:10:16,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:10:16,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:10:16,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:16,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:10:16,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:10:16,016 INFO L87 Difference]: Start difference. First operand 103 states and 123 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) [2021-12-06 18:10:16,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:16,027 INFO L93 Difference]: Finished difference Result 103 states and 123 transitions. [2021-12-06 18:10:16,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:10:16,028 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 [2021-12-06 18:10:16,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:16,029 INFO L225 Difference]: With dead ends: 103 [2021-12-06 18:10:16,029 INFO L226 Difference]: Without dead ends: 102 [2021-12-06 18:10:16,029 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 [2021-12-06 18:10:16,029 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 2 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 181 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 [2021-12-06 18:10:16,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 181 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:16,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-12-06 18:10:16,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-12-06 18:10:16,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 83 states have (on average 1.4337349397590362) internal successors, (119), 99 states have internal predecessors, (119), 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) [2021-12-06 18:10:16,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 121 transitions. [2021-12-06 18:10:16,035 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 121 transitions. Word has length 31 [2021-12-06 18:10:16,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:16,035 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 121 transitions. [2021-12-06 18:10:16,035 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) [2021-12-06 18:10:16,035 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 121 transitions. [2021-12-06 18:10:16,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-06 18:10:16,036 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:16,036 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, 1] [2021-12-06 18:10:16,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 18:10:16,036 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:16,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:16,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1322568274, now seen corresponding path program 1 times [2021-12-06 18:10:16,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:16,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715215401] [2021-12-06 18:10:16,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:16,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:16,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:10:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:16,103 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:10:16,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:16,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715215401] [2021-12-06 18:10:16,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715215401] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:10:16,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956999009] [2021-12-06 18:10:16,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:16,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:16,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:10:16,105 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:10:16,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 18:10:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:16,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 18:10:16,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:10:16,230 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:10:16,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:10:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:10:16,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956999009] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:10:16,296 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:10:16,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2021-12-06 18:10:16,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696033657] [2021-12-06 18:10:16,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:10:16,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:10:16,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:16,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:10:16,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:10:16,298 INFO L87 Difference]: Start difference. First operand 102 states and 121 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 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) [2021-12-06 18:10:16,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:16,339 INFO L93 Difference]: Finished difference Result 207 states and 250 transitions. [2021-12-06 18:10:16,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 18:10:16,339 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 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 32 [2021-12-06 18:10:16,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:16,340 INFO L225 Difference]: With dead ends: 207 [2021-12-06 18:10:16,340 INFO L226 Difference]: Without dead ends: 120 [2021-12-06 18:10:16,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:10:16,342 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 30 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:10:16,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 366 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:16,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-12-06 18:10:16,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-12-06 18:10:16,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 101 states have (on average 1.3564356435643565) internal successors, (137), 117 states have internal predecessors, (137), 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) [2021-12-06 18:10:16,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2021-12-06 18:10:16,350 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 32 [2021-12-06 18:10:16,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:16,350 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2021-12-06 18:10:16,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 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) [2021-12-06 18:10:16,351 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2021-12-06 18:10:16,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-06 18:10:16,352 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:16,352 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] [2021-12-06 18:10:16,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 18:10:16,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:16,554 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:16,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:16,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1541317522, now seen corresponding path program 2 times [2021-12-06 18:10:16,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:16,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950658803] [2021-12-06 18:10:16,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:16,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:16,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 18:10:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:16,709 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-12-06 18:10:16,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:16,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950658803] [2021-12-06 18:10:16,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950658803] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:10:16,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:10:16,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:10:16,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297118283] [2021-12-06 18:10:16,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:10:16,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:10:16,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:16,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:10:16,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:10:16,711 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-12-06 18:10:16,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:16,718 INFO L93 Difference]: Finished difference Result 166 states and 194 transitions. [2021-12-06 18:10:16,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:10:16,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 50 [2021-12-06 18:10:16,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:16,719 INFO L225 Difference]: With dead ends: 166 [2021-12-06 18:10:16,719 INFO L226 Difference]: Without dead ends: 115 [2021-12-06 18:10:16,720 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 [2021-12-06 18:10:16,720 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 30 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:10:16,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 143 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:16,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-12-06 18:10:16,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 93. [2021-12-06 18:10:16,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 84 states have (on average 1.2261904761904763) internal successors, (103), 90 states have internal predecessors, (103), 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) [2021-12-06 18:10:16,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2021-12-06 18:10:16,726 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 50 [2021-12-06 18:10:16,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:16,726 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2021-12-06 18:10:16,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-12-06 18:10:16,726 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2021-12-06 18:10:16,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-06 18:10:16,727 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:16,727 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:10:16,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 18:10:16,727 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:16,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:16,728 INFO L85 PathProgramCache]: Analyzing trace with hash -239754721, now seen corresponding path program 1 times [2021-12-06 18:10:16,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:16,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098135021] [2021-12-06 18:10:16,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:16,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:16,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 18:10:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:16,794 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-12-06 18:10:16,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:16,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098135021] [2021-12-06 18:10:16,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098135021] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:10:16,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556430988] [2021-12-06 18:10:16,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:16,794 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:16,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:10:16,795 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:10:16,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 18:10:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:16,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 18:10:16,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:10:16,966 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-12-06 18:10:16,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:10:16,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556430988] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:10:16,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:10:16,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-12-06 18:10:16,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353913748] [2021-12-06 18:10:16,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:10:16,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:10:16,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:16,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:10:16,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:10:16,968 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-12-06 18:10:16,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:16,993 INFO L93 Difference]: Finished difference Result 122 states and 140 transitions. [2021-12-06 18:10:16,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 18:10:16,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 50 [2021-12-06 18:10:16,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:16,995 INFO L225 Difference]: With dead ends: 122 [2021-12-06 18:10:16,995 INFO L226 Difference]: Without dead ends: 121 [2021-12-06 18:10:16,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:10:16,996 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 82 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:10:16,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 145 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:16,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-12-06 18:10:17,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 88. [2021-12-06 18:10:17,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 80 states have (on average 1.2125) internal successors, (97), 85 states have internal predecessors, (97), 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) [2021-12-06 18:10:17,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2021-12-06 18:10:17,003 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 50 [2021-12-06 18:10:17,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:17,003 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2021-12-06 18:10:17,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-12-06 18:10:17,003 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2021-12-06 18:10:17,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-06 18:10:17,004 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:17,005 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, 1] [2021-12-06 18:10:17,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 18:10:17,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-06 18:10:17,206 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:17,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:17,207 INFO L85 PathProgramCache]: Analyzing trace with hash 267645717, now seen corresponding path program 1 times [2021-12-06 18:10:17,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:17,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270993486] [2021-12-06 18:10:17,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:17,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:17,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 18:10:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:17,362 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-12-06 18:10:17,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:17,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270993486] [2021-12-06 18:10:17,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270993486] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:10:17,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:10:17,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:10:17,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023390701] [2021-12-06 18:10:17,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:10:17,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:10:17,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:17,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:10:17,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:10:17,366 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-12-06 18:10:17,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:17,382 INFO L93 Difference]: Finished difference Result 102 states and 114 transitions. [2021-12-06 18:10:17,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:10:17,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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 53 [2021-12-06 18:10:17,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:17,383 INFO L225 Difference]: With dead ends: 102 [2021-12-06 18:10:17,383 INFO L226 Difference]: Without dead ends: 91 [2021-12-06 18:10:17,384 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 [2021-12-06 18:10:17,385 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 1 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 112 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 [2021-12-06 18:10:17,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 112 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:17,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-12-06 18:10:17,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-12-06 18:10:17,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 83 states have (on average 1.2048192771084338) internal successors, (100), 88 states have internal predecessors, (100), 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) [2021-12-06 18:10:17,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 102 transitions. [2021-12-06 18:10:17,391 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 102 transitions. Word has length 53 [2021-12-06 18:10:17,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:17,392 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 102 transitions. [2021-12-06 18:10:17,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-12-06 18:10:17,392 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 102 transitions. [2021-12-06 18:10:17,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 18:10:17,393 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:17,393 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, 1] [2021-12-06 18:10:17,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 18:10:17,393 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:17,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:17,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1974474060, now seen corresponding path program 1 times [2021-12-06 18:10:17,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:17,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166023319] [2021-12-06 18:10:17,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:17,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:17,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 18:10:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:17,443 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-12-06 18:10:17,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:17,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166023319] [2021-12-06 18:10:17,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166023319] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:10:17,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:10:17,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:10:17,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5211395] [2021-12-06 18:10:17,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:10:17,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:10:17,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:17,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:10:17,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:10:17,444 INFO L87 Difference]: Start difference. First operand 91 states and 102 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-12-06 18:10:17,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:17,451 INFO L93 Difference]: Finished difference Result 91 states and 102 transitions. [2021-12-06 18:10:17,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:10:17,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 [2021-12-06 18:10:17,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:17,452 INFO L225 Difference]: With dead ends: 91 [2021-12-06 18:10:17,453 INFO L226 Difference]: Without dead ends: 90 [2021-12-06 18:10:17,453 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 [2021-12-06 18:10:17,453 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 2 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 110 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 [2021-12-06 18:10:17,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 110 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:17,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-12-06 18:10:17,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-12-06 18:10:17,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.1927710843373494) internal successors, (99), 87 states have internal predecessors, (99), 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) [2021-12-06 18:10:17,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 101 transitions. [2021-12-06 18:10:17,457 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 101 transitions. Word has length 56 [2021-12-06 18:10:17,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:17,458 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 101 transitions. [2021-12-06 18:10:17,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-12-06 18:10:17,458 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 101 transitions. [2021-12-06 18:10:17,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 18:10:17,458 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:17,458 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] [2021-12-06 18:10:17,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 18:10:17,459 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:17,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:17,459 INFO L85 PathProgramCache]: Analyzing trace with hash -988340173, now seen corresponding path program 1 times [2021-12-06 18:10:17,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:17,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148515740] [2021-12-06 18:10:17,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:17,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:17,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 18:10:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:17,549 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-12-06 18:10:17,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:17,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148515740] [2021-12-06 18:10:17,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148515740] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:10:17,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585356827] [2021-12-06 18:10:17,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:17,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:17,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:10:17,551 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:10:17,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 18:10:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:17,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 18:10:17,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:10:17,783 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-12-06 18:10:17,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:10:17,835 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-12-06 18:10:17,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585356827] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:10:17,835 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:10:17,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-12-06 18:10:17,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193056093] [2021-12-06 18:10:17,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:10:17,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:10:17,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:17,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:10:17,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:10:17,837 INFO L87 Difference]: Start difference. First operand 90 states and 101 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) [2021-12-06 18:10:17,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:17,862 INFO L93 Difference]: Finished difference Result 150 states and 175 transitions. [2021-12-06 18:10:17,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:10:17,862 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 [2021-12-06 18:10:17,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:17,863 INFO L225 Difference]: With dead ends: 150 [2021-12-06 18:10:17,864 INFO L226 Difference]: Without dead ends: 108 [2021-12-06 18:10:17,864 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 [2021-12-06 18:10:17,865 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 12 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:10:17,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 219 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:17,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-12-06 18:10:17,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2021-12-06 18:10:17,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 101 states have (on average 1.1584158415841583) internal successors, (117), 105 states have internal predecessors, (117), 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) [2021-12-06 18:10:17,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 119 transitions. [2021-12-06 18:10:17,872 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 119 transitions. Word has length 56 [2021-12-06 18:10:17,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:17,872 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 119 transitions. [2021-12-06 18:10:17,872 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) [2021-12-06 18:10:17,872 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 119 transitions. [2021-12-06 18:10:17,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-06 18:10:17,873 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:17,873 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 18:10:17,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 18:10:18,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:18,074 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:18,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:18,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1079153938, now seen corresponding path program 1 times [2021-12-06 18:10:18,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:18,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825362309] [2021-12-06 18:10:18,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:18,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:18,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 18:10:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:18,220 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-12-06 18:10:18,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:18,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825362309] [2021-12-06 18:10:18,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825362309] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:10:18,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180306020] [2021-12-06 18:10:18,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:18,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:18,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:10:18,222 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:10:18,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 18:10:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:18,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 18:10:18,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:10:18,430 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-12-06 18:10:18,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:10:18,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180306020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:10:18,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:10:18,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-12-06 18:10:18,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738815027] [2021-12-06 18:10:18,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:10:18,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:10:18,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:18,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:10:18,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:10:18,431 INFO L87 Difference]: Start difference. First operand 108 states and 119 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) [2021-12-06 18:10:18,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:18,443 INFO L93 Difference]: Finished difference Result 108 states and 119 transitions. [2021-12-06 18:10:18,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 18:10:18,443 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 57 [2021-12-06 18:10:18,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:18,444 INFO L225 Difference]: With dead ends: 108 [2021-12-06 18:10:18,444 INFO L226 Difference]: Without dead ends: 107 [2021-12-06 18:10:18,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:10:18,445 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 10 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 145 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 [2021-12-06 18:10:18,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 145 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:18,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-12-06 18:10:18,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2021-12-06 18:10:18,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 99 states have (on average 1.1515151515151516) internal successors, (114), 102 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) [2021-12-06 18:10:18,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 116 transitions. [2021-12-06 18:10:18,452 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 116 transitions. Word has length 57 [2021-12-06 18:10:18,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:18,452 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 116 transitions. [2021-12-06 18:10:18,452 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) [2021-12-06 18:10:18,453 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 116 transitions. [2021-12-06 18:10:18,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-06 18:10:18,453 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:18,453 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:10:18,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 18:10:18,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:18,655 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:18,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:18,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1657866091, now seen corresponding path program 1 times [2021-12-06 18:10:18,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:18,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843362298] [2021-12-06 18:10:18,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:18,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:18,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 18:10:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:18,802 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-12-06 18:10:18,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:18,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843362298] [2021-12-06 18:10:18,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843362298] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:10:18,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521762890] [2021-12-06 18:10:18,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:18,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:18,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:10:18,804 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:10:18,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 18:10:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:18,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:10:18,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:10:18,997 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-12-06 18:10:18,997 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:10:18,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521762890] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:10:18,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:10:18,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-12-06 18:10:18,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311981601] [2021-12-06 18:10:18,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:10:18,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:10:18,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:18,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:10:18,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:10:18,999 INFO L87 Difference]: Start difference. First operand 105 states and 116 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-12-06 18:10:19,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:19,009 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2021-12-06 18:10:19,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:10:19,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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 61 [2021-12-06 18:10:19,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:19,011 INFO L225 Difference]: With dead ends: 109 [2021-12-06 18:10:19,011 INFO L226 Difference]: Without dead ends: 108 [2021-12-06 18:10:19,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:10:19,012 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 2 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 107 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 [2021-12-06 18:10:19,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 107 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:19,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-12-06 18:10:19,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2021-12-06 18:10:19,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 101 states have (on average 1.1485148514851484) internal successors, (116), 104 states have internal predecessors, (116), 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) [2021-12-06 18:10:19,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 118 transitions. [2021-12-06 18:10:19,018 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 118 transitions. Word has length 61 [2021-12-06 18:10:19,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:19,018 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 118 transitions. [2021-12-06 18:10:19,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-12-06 18:10:19,019 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 118 transitions. [2021-12-06 18:10:19,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-06 18:10:19,019 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:19,019 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:10:19,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-06 18:10:19,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-06 18:10:19,221 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:19,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:19,221 INFO L85 PathProgramCache]: Analyzing trace with hash 145758976, now seen corresponding path program 1 times [2021-12-06 18:10:19,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:19,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813138463] [2021-12-06 18:10:19,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:19,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:19,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 18:10:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:19,318 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-12-06 18:10:19,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:19,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813138463] [2021-12-06 18:10:19,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813138463] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:10:19,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287056601] [2021-12-06 18:10:19,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:19,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:19,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:10:19,320 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:10:19,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-06 18:10:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:19,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:10:19,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:10:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-12-06 18:10:19,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:10:19,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287056601] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:10:19,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:10:19,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-12-06 18:10:19,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759384851] [2021-12-06 18:10:19,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:10:19,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:10:19,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:19,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:10:19,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:10:19,559 INFO L87 Difference]: Start difference. First operand 107 states and 118 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-12-06 18:10:19,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:19,569 INFO L93 Difference]: Finished difference Result 107 states and 118 transitions. [2021-12-06 18:10:19,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:10:19,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 62 [2021-12-06 18:10:19,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:19,570 INFO L225 Difference]: With dead ends: 107 [2021-12-06 18:10:19,570 INFO L226 Difference]: Without dead ends: 106 [2021-12-06 18:10:19,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:10:19,571 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 1 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:10:19,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 106 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:19,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-12-06 18:10:19,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-12-06 18:10:19,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 101 states have (on average 1.1386138613861385) internal successors, (115), 103 states have internal predecessors, (115), 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) [2021-12-06 18:10:19,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 117 transitions. [2021-12-06 18:10:19,578 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 117 transitions. Word has length 62 [2021-12-06 18:10:19,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:19,579 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 117 transitions. [2021-12-06 18:10:19,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-12-06 18:10:19,579 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 117 transitions. [2021-12-06 18:10:19,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-06 18:10:19,580 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:19,580 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:10:19,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-06 18:10:19,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:19,781 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:19,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:19,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1659537149, now seen corresponding path program 1 times [2021-12-06 18:10:19,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:19,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693171850] [2021-12-06 18:10:19,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:19,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:19,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 18:10:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:19,925 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-12-06 18:10:19,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:19,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693171850] [2021-12-06 18:10:19,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693171850] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:10:19,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362802313] [2021-12-06 18:10:19,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:19,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:19,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:10:19,928 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:10:19,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-06 18:10:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:20,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 18:10:20,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:10:20,142 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-12-06 18:10:20,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:10:20,187 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-12-06 18:10:20,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362802313] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:10:20,188 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:10:20,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-12-06 18:10:20,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000383861] [2021-12-06 18:10:20,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:10:20,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:10:20,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:20,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:10:20,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:10:20,189 INFO L87 Difference]: Start difference. First operand 106 states and 117 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-12-06 18:10:20,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:20,209 INFO L93 Difference]: Finished difference Result 125 states and 139 transitions. [2021-12-06 18:10:20,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:10:20,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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 64 [2021-12-06 18:10:20,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:20,210 INFO L225 Difference]: With dead ends: 125 [2021-12-06 18:10:20,210 INFO L226 Difference]: Without dead ends: 115 [2021-12-06 18:10:20,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:10:20,211 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 8 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:10:20,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 214 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:20,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-12-06 18:10:20,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-12-06 18:10:20,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 110 states have (on average 1.1272727272727272) internal successors, (124), 112 states have internal predecessors, (124), 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) [2021-12-06 18:10:20,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 126 transitions. [2021-12-06 18:10:20,218 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 126 transitions. Word has length 64 [2021-12-06 18:10:20,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:20,218 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 126 transitions. [2021-12-06 18:10:20,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-12-06 18:10:20,219 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 126 transitions. [2021-12-06 18:10:20,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-06 18:10:20,219 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:20,219 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, 1, 1] [2021-12-06 18:10:20,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-06 18:10:20,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-06 18:10:20,420 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:20,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:20,421 INFO L85 PathProgramCache]: Analyzing trace with hash -853883124, now seen corresponding path program 2 times [2021-12-06 18:10:20,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:20,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874739593] [2021-12-06 18:10:20,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:20,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:20,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 18:10:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:20,466 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2021-12-06 18:10:20,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:20,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874739593] [2021-12-06 18:10:20,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874739593] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:10:20,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235824149] [2021-12-06 18:10:20,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 18:10:20,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:20,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:10:20,468 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:10:20,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-06 18:10:20,614 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 18:10:20,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 18:10:20,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 18:10:20,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:10:20,691 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:10:20,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:10:20,770 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:10:20,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235824149] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:10:20,770 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:10:20,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2021-12-06 18:10:20,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828534442] [2021-12-06 18:10:20,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:10:20,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:10:20,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:20,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:10:20,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:10:20,772 INFO L87 Difference]: Start difference. First operand 115 states and 126 transitions. Second operand has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 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) [2021-12-06 18:10:20,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:20,836 INFO L93 Difference]: Finished difference Result 120 states and 132 transitions. [2021-12-06 18:10:20,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:10:20,836 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 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 73 [2021-12-06 18:10:20,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:20,837 INFO L225 Difference]: With dead ends: 120 [2021-12-06 18:10:20,837 INFO L226 Difference]: Without dead ends: 77 [2021-12-06 18:10:20,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:10:20,838 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 25 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:10:20,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 245 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:20,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-12-06 18:10:20,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-12-06 18:10:20,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 73 states have (on average 1.0684931506849316) internal successors, (78), 74 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) [2021-12-06 18:10:20,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 80 transitions. [2021-12-06 18:10:20,841 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 80 transitions. Word has length 73 [2021-12-06 18:10:20,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:20,841 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 80 transitions. [2021-12-06 18:10:20,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 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) [2021-12-06 18:10:20,841 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 80 transitions. [2021-12-06 18:10:20,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-06 18:10:20,842 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:20,842 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:10:20,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-12-06 18:10:21,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:21,043 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:21,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:21,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1136641635, now seen corresponding path program 2 times [2021-12-06 18:10:21,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:21,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419695284] [2021-12-06 18:10:21,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:21,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:21,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 18:10:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:21,137 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-12-06 18:10:21,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:21,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419695284] [2021-12-06 18:10:21,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419695284] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:10:21,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99902797] [2021-12-06 18:10:21,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 18:10:21,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:21,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:10:21,138 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:10:21,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-06 18:10:21,313 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 18:10:21,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 18:10:21,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 18:10:21,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:10:21,386 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-12-06 18:10:21,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:10:21,476 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-12-06 18:10:21,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99902797] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:10:21,476 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:10:21,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2021-12-06 18:10:21,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789282982] [2021-12-06 18:10:21,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:10:21,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:10:21,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:21,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:10:21,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:10:21,478 INFO L87 Difference]: Start difference. First operand 77 states and 80 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) [2021-12-06 18:10:21,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:21,524 INFO L93 Difference]: Finished difference Result 94 states and 100 transitions. [2021-12-06 18:10:21,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:10:21,525 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 74 [2021-12-06 18:10:21,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:21,525 INFO L225 Difference]: With dead ends: 94 [2021-12-06 18:10:21,525 INFO L226 Difference]: Without dead ends: 93 [2021-12-06 18:10:21,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:10:21,526 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 10 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:10:21,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 61 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:10:21,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-12-06 18:10:21,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 76. [2021-12-06 18:10:21,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 73 states have (on average 1.0547945205479452) internal successors, (77), 73 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) [2021-12-06 18:10:21,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2021-12-06 18:10:21,530 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 74 [2021-12-06 18:10:21,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:21,530 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2021-12-06 18:10:21,530 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) [2021-12-06 18:10:21,530 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2021-12-06 18:10:21,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-06 18:10:21,531 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:10:21,531 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:10:21,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-06 18:10:21,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:21,731 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-12-06 18:10:21,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:10:21,732 INFO L85 PathProgramCache]: Analyzing trace with hash 876152403, now seen corresponding path program 1 times [2021-12-06 18:10:21,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:10:21,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606012865] [2021-12-06 18:10:21,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:21,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:10:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:21,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 18:10:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:21,812 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-12-06 18:10:21,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:10:21,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606012865] [2021-12-06 18:10:21,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606012865] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:10:21,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816851451] [2021-12-06 18:10:21,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:10:21,813 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:10:21,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:10:21,814 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:10:21,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-06 18:10:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:10:22,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 18:10:22,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:10:22,125 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-12-06 18:10:22,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:10:22,208 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-12-06 18:10:22,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816851451] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:10:22,208 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:10:22,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2021-12-06 18:10:22,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648133844] [2021-12-06 18:10:22,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:10:22,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 18:10:22,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:10:22,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 18:10:22,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2021-12-06 18:10:22,209 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 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) [2021-12-06 18:10:22,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:10:22,393 INFO L93 Difference]: Finished difference Result 130 states and 147 transitions. [2021-12-06 18:10:22,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 18:10:22,394 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 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) Word has length 75 [2021-12-06 18:10:22,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:10:22,394 INFO L225 Difference]: With dead ends: 130 [2021-12-06 18:10:22,394 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 18:10:22,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=330, Invalid=792, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 18:10:22,395 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 40 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:10:22,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 93 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:10:22,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 18:10:22,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 18:10:22,396 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) [2021-12-06 18:10:22,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 18:10:22,396 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2021-12-06 18:10:22,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:10:22,396 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 18:10:22,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 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) [2021-12-06 18:10:22,396 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 18:10:22,396 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 18:10:22,398 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2021-12-06 18:10:22,398 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2021-12-06 18:10:22,398 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2021-12-06 18:10:22,398 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2021-12-06 18:10:22,398 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2021-12-06 18:10:22,399 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2021-12-06 18:10:22,399 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2021-12-06 18:10:22,399 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2021-12-06 18:10:22,399 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2021-12-06 18:10:22,399 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2021-12-06 18:10:22,399 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2021-12-06 18:10:22,399 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2021-12-06 18:10:22,399 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2021-12-06 18:10:22,399 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2021-12-06 18:10:22,399 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2021-12-06 18:10:22,399 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2021-12-06 18:10:22,399 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2021-12-06 18:10:22,399 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2021-12-06 18:10:22,400 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2021-12-06 18:10:22,400 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2021-12-06 18:10:22,400 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2021-12-06 18:10:22,400 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2021-12-06 18:10:22,400 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2021-12-06 18:10:22,400 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2021-12-06 18:10:22,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-12-06 18:10:22,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-12-06 18:10:22,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 18:10:22,950 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1332) no Hoare annotation was computed. [2021-12-06 18:10:22,950 INFO L858 garLoopResultBuilder]: For program point L1340-2(lines 1340 1341) no Hoare annotation was computed. [2021-12-06 18:10:22,950 INFO L858 garLoopResultBuilder]: For program point L1340-3(line 1340) no Hoare annotation was computed. [2021-12-06 18:10:22,950 INFO L854 garLoopResultBuilder]: At program point L1340-4(lines 1340 1341) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~j~0#1|)) (.cse2 (= |ULTIMATE.start_main_~i~5#1| 0)) (.cse1 (<= 1 |ULTIMATE.start_main_~argc~0#1|)) (.cse3 (<= 1 |ULTIMATE.start_main_~i~4#1|)) (.cse5 (< |ULTIMATE.start_main_~i~5#1| 2147483646)) (.cse7 (= |ULTIMATE.start_main_~j~0#1| 0)) (.cse4 (<= |ULTIMATE.start_main_~argc~0#1| 10000)) (.cse6 (<= 1 |ULTIMATE.start_main_~i~5#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 .cse5 .cse4 .cse6) (and .cse1 .cse2 .cse3 .cse7 .cse4) (and .cse1 .cse3 .cse5 .cse7 .cse4 .cse6))) [2021-12-06 18:10:22,950 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1202) no Hoare annotation was computed. [2021-12-06 18:10:22,950 INFO L858 garLoopResultBuilder]: For program point L1225(lines 1225 1228) no Hoare annotation was computed. [2021-12-06 18:10:22,950 INFO L858 garLoopResultBuilder]: For program point L1192(line 1192) no Hoare annotation was computed. [2021-12-06 18:10:22,950 INFO L858 garLoopResultBuilder]: For program point L1192-1(line 1192) no Hoare annotation was computed. [2021-12-06 18:10:22,950 INFO L858 garLoopResultBuilder]: For program point L1225-2(lines 1166 1232) no Hoare annotation was computed. [2021-12-06 18:10:22,950 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 18:10:22,950 INFO L854 garLoopResultBuilder]: At program point L1176(lines 1176 1188) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= 1 |ULTIMATE.start_main_~i~4#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000)) [2021-12-06 18:10:22,950 INFO L858 garLoopResultBuilder]: For program point L1176-2(lines 1173 1223) no Hoare annotation was computed. [2021-12-06 18:10:22,951 INFO L858 garLoopResultBuilder]: For program point L1325-2(lines 1325 1326) no Hoare annotation was computed. [2021-12-06 18:10:22,951 INFO L858 garLoopResultBuilder]: For program point L1325-3(line 1325) no Hoare annotation was computed. [2021-12-06 18:10:22,951 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1335) no Hoare annotation was computed. [2021-12-06 18:10:22,951 INFO L854 garLoopResultBuilder]: At program point L1325-4(lines 1325 1326) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~4#1| 0) (<= 1 |ULTIMATE.start_main_~i~4#1|)) [2021-12-06 18:10:22,951 INFO L858 garLoopResultBuilder]: For program point L1193(lines 1193 1211) no Hoare annotation was computed. [2021-12-06 18:10:22,951 INFO L858 garLoopResultBuilder]: For program point L1325-5(lines 1325 1326) no Hoare annotation was computed. [2021-12-06 18:10:22,951 INFO L858 garLoopResultBuilder]: For program point L1193-1(lines 1193 1211) no Hoare annotation was computed. [2021-12-06 18:10:22,951 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1335) no Hoare annotation was computed. [2021-12-06 18:10:22,951 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1213) no Hoare annotation was computed. [2021-12-06 18:10:22,951 INFO L858 garLoopResultBuilder]: For program point L1228(line 1228) no Hoare annotation was computed. [2021-12-06 18:10:22,951 INFO L858 garLoopResultBuilder]: For program point L1195(lines 1195 1210) no Hoare annotation was computed. [2021-12-06 18:10:22,951 INFO L858 garLoopResultBuilder]: For program point L1228-2(line 1228) no Hoare annotation was computed. [2021-12-06 18:10:22,951 INFO L858 garLoopResultBuilder]: For program point L1344-2(lines 1344 1345) no Hoare annotation was computed. [2021-12-06 18:10:22,951 INFO L858 garLoopResultBuilder]: For program point L1344-3(line 1344) no Hoare annotation was computed. [2021-12-06 18:10:22,951 INFO L854 garLoopResultBuilder]: At program point L1344-4(lines 1344 1345) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~i~6#1| 2147483646) (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= 1 |ULTIMATE.start_main_~i~4#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000) (<= 0 |ULTIMATE.start_main_~i~6#1|) (<= 1 |ULTIMATE.start_dirname_~i~0#1|)) [2021-12-06 18:10:22,951 INFO L858 garLoopResultBuilder]: For program point L1344-5(lines 1344 1345) no Hoare annotation was computed. [2021-12-06 18:10:22,952 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1213) no Hoare annotation was computed. [2021-12-06 18:10:22,952 INFO L858 garLoopResultBuilder]: For program point L1229-1(lines 1229 1230) no Hoare annotation was computed. [2021-12-06 18:10:22,952 INFO L854 garLoopResultBuilder]: At program point L1163(lines 1159 1164) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= 1 |ULTIMATE.start_main_~i~4#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000) (<= 1 |ULTIMATE.start_dirname_~i~0#1|)) [2021-12-06 18:10:22,952 INFO L858 garLoopResultBuilder]: For program point L1213(line 1213) no Hoare annotation was computed. [2021-12-06 18:10:22,952 INFO L858 garLoopResultBuilder]: For program point L1213-1(line 1213) no Hoare annotation was computed. [2021-12-06 18:10:22,952 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1197) no Hoare annotation was computed. [2021-12-06 18:10:22,952 INFO L858 garLoopResultBuilder]: For program point L1197(line 1197) no Hoare annotation was computed. [2021-12-06 18:10:22,952 INFO L858 garLoopResultBuilder]: For program point L1197-1(line 1197) no Hoare annotation was computed. [2021-12-06 18:10:22,952 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 18:10:22,952 INFO L858 garLoopResultBuilder]: For program point L1181(line 1181) no Hoare annotation was computed. [2021-12-06 18:10:22,952 INFO L858 garLoopResultBuilder]: For program point L1181-2(line 1181) no Hoare annotation was computed. [2021-12-06 18:10:22,952 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1197) no Hoare annotation was computed. [2021-12-06 18:10:22,952 INFO L854 garLoopResultBuilder]: At program point L1231(lines 1165 1232) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= 1 |ULTIMATE.start_main_~i~4#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000)) [2021-12-06 18:10:22,952 INFO L858 garLoopResultBuilder]: For program point L1198(lines 1198 1209) no Hoare annotation was computed. [2021-12-06 18:10:22,952 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1344) no Hoare annotation was computed. [2021-12-06 18:10:22,952 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1332) no Hoare annotation was computed. [2021-12-06 18:10:22,952 INFO L854 garLoopResultBuilder]: At program point L1331(line 1331) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~argc~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~i~4#1|)) [2021-12-06 18:10:22,952 INFO L858 garLoopResultBuilder]: For program point L1331-1(line 1331) no Hoare annotation was computed. [2021-12-06 18:10:22,953 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1340) no Hoare annotation was computed. [2021-12-06 18:10:22,953 INFO L858 garLoopResultBuilder]: For program point L1332(line 1332) no Hoare annotation was computed. [2021-12-06 18:10:22,953 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1344) no Hoare annotation was computed. [2021-12-06 18:10:22,953 INFO L858 garLoopResultBuilder]: For program point L1200(lines 1200 1208) no Hoare annotation was computed. [2021-12-06 18:10:22,953 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1340) no Hoare annotation was computed. [2021-12-06 18:10:22,953 INFO L861 garLoopResultBuilder]: At program point L1349(lines 1321 1350) the Hoare annotation is: true [2021-12-06 18:10:22,953 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1325) no Hoare annotation was computed. [2021-12-06 18:10:22,953 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 18:10:22,953 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1206) no Hoare annotation was computed. [2021-12-06 18:10:22,953 INFO L858 garLoopResultBuilder]: For program point L1333(line 1333) no Hoare annotation was computed. [2021-12-06 18:10:22,953 INFO L858 garLoopResultBuilder]: For program point L1333-1(line 1333) no Hoare annotation was computed. [2021-12-06 18:10:22,953 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1325) no Hoare annotation was computed. [2021-12-06 18:10:22,953 INFO L854 garLoopResultBuilder]: At program point L1185(lines 1176 1188) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= 1 |ULTIMATE.start_main_~i~4#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000)) [2021-12-06 18:10:22,953 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1206) no Hoare annotation was computed. [2021-12-06 18:10:22,953 INFO L858 garLoopResultBuilder]: For program point L1202(line 1202) no Hoare annotation was computed. [2021-12-06 18:10:22,953 INFO L858 garLoopResultBuilder]: For program point L1202-1(line 1202) no Hoare annotation was computed. [2021-12-06 18:10:22,953 INFO L858 garLoopResultBuilder]: For program point L1335-2(lines 1335 1342) no Hoare annotation was computed. [2021-12-06 18:10:22,953 INFO L858 garLoopResultBuilder]: For program point L1335-3(line 1335) no Hoare annotation was computed. [2021-12-06 18:10:22,954 INFO L854 garLoopResultBuilder]: At program point L1335-4(lines 1335 1342) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~argc~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_main_~i~4#1|)) (.cse2 (<= |ULTIMATE.start_main_~argc~0#1| 10000))) (or (and .cse0 (= |ULTIMATE.start_main_~i~5#1| 0) .cse1 .cse2) (and (<= 1 |ULTIMATE.start_main_~j~0#1|) .cse0 (<= |ULTIMATE.start_main_~i~5#1| 2147483646) .cse1 .cse2 (<= 1 |ULTIMATE.start_main_~i~5#1|)))) [2021-12-06 18:10:22,954 INFO L858 garLoopResultBuilder]: For program point L1203(lines 1203 1207) no Hoare annotation was computed. [2021-12-06 18:10:22,954 INFO L858 garLoopResultBuilder]: For program point L1335-5(lines 1335 1342) no Hoare annotation was computed. [2021-12-06 18:10:22,954 INFO L858 garLoopResultBuilder]: For program point L1236-2(lines 1236 1237) no Hoare annotation was computed. [2021-12-06 18:10:22,954 INFO L858 garLoopResultBuilder]: For program point L1236-3(line 1236) no Hoare annotation was computed. [2021-12-06 18:10:22,954 INFO L854 garLoopResultBuilder]: At program point L1236-4(lines 1236 1237) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~argc~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_main_~i~4#1|)) (.cse2 (<= |ULTIMATE.start_main_~argc~0#1| 10000))) (or (and (= |ULTIMATE.start_dirname_~i~0#1| 0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= 1 |ULTIMATE.start_dirname_~i~0#1|)))) [2021-12-06 18:10:22,954 INFO L858 garLoopResultBuilder]: For program point L1236-5(lines 1236 1237) no Hoare annotation was computed. [2021-12-06 18:10:22,954 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1192) no Hoare annotation was computed. [2021-12-06 18:10:22,954 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1192) no Hoare annotation was computed. [2021-12-06 18:10:22,954 INFO L858 garLoopResultBuilder]: For program point L1221(lines 1221 1222) no Hoare annotation was computed. [2021-12-06 18:10:22,954 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 18:10:22,954 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1333) no Hoare annotation was computed. [2021-12-06 18:10:22,954 INFO L858 garLoopResultBuilder]: For program point L1205(lines 1205 1206) no Hoare annotation was computed. [2021-12-06 18:10:22,954 INFO L858 garLoopResultBuilder]: For program point L1172(lines 1172 1223) no Hoare annotation was computed. [2021-12-06 18:10:22,954 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1236) no Hoare annotation was computed. [2021-12-06 18:10:22,954 INFO L858 garLoopResultBuilder]: For program point L1172-1(lines 1172 1223) no Hoare annotation was computed. [2021-12-06 18:10:22,954 INFO L858 garLoopResultBuilder]: For program point L1189-1(lines 1189 1219) no Hoare annotation was computed. [2021-12-06 18:10:22,954 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1333) no Hoare annotation was computed. [2021-12-06 18:10:22,955 INFO L854 garLoopResultBuilder]: At program point L1239(lines 1233 1240) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= 1 |ULTIMATE.start_main_~i~4#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000) (<= 1 |ULTIMATE.start_dirname_~i~0#1|)) [2021-12-06 18:10:22,955 INFO L858 garLoopResultBuilder]: For program point L1206(line 1206) no Hoare annotation was computed. [2021-12-06 18:10:22,955 INFO L858 garLoopResultBuilder]: For program point L1206-1(line 1206) no Hoare annotation was computed. [2021-12-06 18:10:22,955 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1236) no Hoare annotation was computed. [2021-12-06 18:10:22,955 INFO L854 garLoopResultBuilder]: At program point L1157(lines 1148 1158) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= 1 |ULTIMATE.start_main_~i~4#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000) (<= 1 |ULTIMATE.start_dirname_~i~0#1|)) [2021-12-06 18:10:22,955 INFO L858 garLoopResultBuilder]: For program point L1141(lines 1141 1144) no Hoare annotation was computed. [2021-12-06 18:10:22,955 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1202) no Hoare annotation was computed. [2021-12-06 18:10:22,955 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 8 10) the Hoare annotation is: true [2021-12-06 18:10:22,955 INFO L858 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-12-06 18:10:22,955 INFO L858 garLoopResultBuilder]: For program point L9-2(lines 8 10) no Hoare annotation was computed. [2021-12-06 18:10:22,955 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2021-12-06 18:10:22,957 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:10:22,958 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 18:10:22,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:10:22 BoogieIcfgContainer [2021-12-06 18:10:22,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 18:10:22,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 18:10:22,974 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 18:10:22,974 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 18:10:22,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:10:13" (3/4) ... [2021-12-06 18:10:22,977 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 18:10:22,981 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-06 18:10:22,986 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2021-12-06 18:10:22,987 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-12-06 18:10:22,987 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-12-06 18:10:22,988 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-06 18:10:22,988 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 18:10:22,989 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 18:10:23,027 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 18:10:23,027 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 18:10:23,028 INFO L158 Benchmark]: Toolchain (without parser) took 10456.85ms. Allocated memory was 119.5MB in the beginning and 184.5MB in the end (delta: 65.0MB). Free memory was 80.9MB in the beginning and 59.5MB in the end (delta: 21.5MB). Peak memory consumption was 86.8MB. Max. memory is 16.1GB. [2021-12-06 18:10:23,028 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 119.5MB. Free memory is still 100.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:10:23,028 INFO L158 Benchmark]: CACSL2BoogieTranslator took 533.98ms. Allocated memory is still 119.5MB. Free memory was 80.7MB in the beginning and 63.7MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-06 18:10:23,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.00ms. Allocated memory is still 119.5MB. Free memory was 63.7MB in the beginning and 60.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 18:10:23,029 INFO L158 Benchmark]: Boogie Preprocessor took 28.16ms. Allocated memory is still 119.5MB. Free memory was 60.0MB in the beginning and 57.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:10:23,029 INFO L158 Benchmark]: RCFGBuilder took 434.45ms. Allocated memory is still 119.5MB. Free memory was 57.9MB in the beginning and 80.7MB in the end (delta: -22.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2021-12-06 18:10:23,029 INFO L158 Benchmark]: TraceAbstraction took 9351.51ms. Allocated memory was 119.5MB in the beginning and 184.5MB in the end (delta: 65.0MB). Free memory was 80.0MB in the beginning and 66.8MB in the end (delta: 13.1MB). Peak memory consumption was 76.7MB. Max. memory is 16.1GB. [2021-12-06 18:10:23,029 INFO L158 Benchmark]: Witness Printer took 53.14ms. Allocated memory is still 184.5MB. Free memory was 66.8MB in the beginning and 59.5MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 18:10:23,030 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 119.5MB. Free memory is still 100.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 533.98ms. Allocated memory is still 119.5MB. Free memory was 80.7MB in the beginning and 63.7MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.00ms. Allocated memory is still 119.5MB. Free memory was 63.7MB in the beginning and 60.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.16ms. Allocated memory is still 119.5MB. Free memory was 60.0MB in the beginning and 57.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.45ms. Allocated memory is still 119.5MB. Free memory was 57.9MB in the beginning and 80.7MB in the end (delta: -22.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9351.51ms. Allocated memory was 119.5MB in the beginning and 184.5MB in the end (delta: 65.0MB). Free memory was 80.0MB in the beginning and 66.8MB in the end (delta: 13.1MB). Peak memory consumption was 76.7MB. Max. memory is 16.1GB. * Witness Printer took 53.14ms. Allocated memory is still 184.5MB. Free memory was 66.8MB in the beginning and 59.5MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. 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: 1325]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1325]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1332]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1332]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1340]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1340]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1335]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1335]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1192]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1192]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1197]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1197]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1202]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1202]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1206]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1206]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1213]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1213]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1236]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1236]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1344]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1344]: 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, 93 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 9.3s, OverallIterations: 21, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 613 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 610 mSDsluCounter, 3663 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2157 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 417 IncrementalHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 1506 mSDtfsCounter, 417 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1149 GetRequests, 1039 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=9, InterpolantAutomatonStates: 117, 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, 21 MinimizatonAttempts, 135 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 17 PreInvPairs, 68 NumberOfFragments, 235 HoareAnnotationTreeSize, 17 FomulaSimplifications, 226 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 14 FomulaSimplificationsInter, 2143 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1554 NumberOfCodeBlocks, 1439 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 1900 ConstructedInterpolants, 0 QuantifiedInterpolants, 2674 SizeOfPredicates, 5 NumberOfNonLiveVariables, 6064 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 41 InterpolantComputations, 14 PerfectInterpolantSequences, 4319/4710 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 24 specifications checked. All of them hold - InvariantResult [Line: 1325]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 1159]: Loop Invariant Derived loop invariant: ((1 <= argc && 1 <= i) && argc <= 10000) && 1 <= i - InvariantResult [Line: 1148]: Loop Invariant Derived loop invariant: ((1 <= argc && 1 <= i) && argc <= 10000) && 1 <= i - InvariantResult [Line: 1176]: Loop Invariant Derived loop invariant: (1 <= argc && 1 <= i) && argc <= 10000 - InvariantResult [Line: 1335]: Loop Invariant Derived loop invariant: (((1 <= argc && i == 0) && 1 <= i) && argc <= 10000) || (((((1 <= j && 1 <= argc) && i <= 2147483646) && 1 <= i) && argc <= 10000) && 1 <= i) - InvariantResult [Line: 1176]: Loop Invariant Derived loop invariant: (1 <= argc && 1 <= i) && argc <= 10000 - InvariantResult [Line: 1340]: Loop Invariant Derived loop invariant: ((((((1 <= j && 1 <= argc) && i == 0) && 1 <= i) && argc <= 10000) || (((((1 <= j && 1 <= argc) && 1 <= i) && i < 2147483646) && argc <= 10000) && 1 <= i)) || ((((1 <= argc && i == 0) && 1 <= i) && j == 0) && argc <= 10000)) || (((((1 <= argc && 1 <= i) && i < 2147483646) && j == 0) && argc <= 10000) && 1 <= i) - InvariantResult [Line: 1236]: Loop Invariant Derived loop invariant: (((i == 0 && 1 <= argc) && 1 <= i) && argc <= 10000) || (((1 <= argc && 1 <= i) && argc <= 10000) && 1 <= i) - InvariantResult [Line: 1165]: Loop Invariant Derived loop invariant: (1 <= argc && 1 <= i) && argc <= 10000 - InvariantResult [Line: 1233]: Loop Invariant Derived loop invariant: ((1 <= argc && 1 <= i) && argc <= 10000) && 1 <= i - InvariantResult [Line: 1344]: Loop Invariant Derived loop invariant: ((((i <= 2147483646 && 1 <= argc) && 1 <= i) && argc <= 10000) && 0 <= i) && 1 <= i - InvariantResult [Line: 1321]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-06 18:10:23,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01ab198-0cca-4210-bf31-921e43c6f061/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE