./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8 --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 32bit --witnessprinter.graph.data.programhash 516828c2d0e4e4ea6fd7a5826d09ca378c2c75a9f8159cf96c4b4e28ff76714b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 19:08:50,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:08:50,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:08:50,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:08:50,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:08:50,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:08:50,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:08:50,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:08:50,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:08:50,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:08:50,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:08:50,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:08:50,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:08:50,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:08:50,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:08:50,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:08:50,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:08:50,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:08:50,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:08:50,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:08:50,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:08:50,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:08:50,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:08:50,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:08:50,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:08:50,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:08:50,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:08:50,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:08:50,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:08:50,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:08:50,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:08:50,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:08:50,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:08:50,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:08:50,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:08:50,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:08:50,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:08:50,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:08:50,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:08:50,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:08:50,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:08:50,758 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 19:08:50,776 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:08:50,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:08:50,776 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:08:50,777 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:08:50,777 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:08:50,777 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:08:50,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:08:50,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:08:50,778 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:08:50,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:08:50,779 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:08:50,779 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:08:50,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:08:50,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:08:50,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:08:50,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:08:50,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:08:50,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:08:50,780 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 19:08:50,780 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:08:50,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:08:50,780 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:08:50,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:08:50,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:08:50,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:08:50,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:08:50,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:08:50,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:08:50,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:08:50,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:08:50,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:08:50,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:08:50,782 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:08:50,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:08:50,782 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:08:50,782 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:08:50,783 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:08:50,783 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516828c2d0e4e4ea6fd7a5826d09ca378c2c75a9f8159cf96c4b4e28ff76714b [2022-12-13 19:08:50,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:08:50,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:08:50,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:08:50,979 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:08:50,980 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:08:50,980 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i [2022-12-13 19:08:53,598 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:08:53,787 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:08:53,787 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i [2022-12-13 19:08:53,794 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/data/b8f25f50c/021e72104f4e4bfdb16630574161652f/FLAG3a6ba5b57 [2022-12-13 19:08:53,805 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/data/b8f25f50c/021e72104f4e4bfdb16630574161652f [2022-12-13 19:08:53,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:08:53,808 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:08:53,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:08:53,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:08:53,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:08:53,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:08:53" (1/1) ... [2022-12-13 19:08:53,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@442770a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:53, skipping insertion in model container [2022-12-13 19:08:53,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:08:53" (1/1) ... [2022-12-13 19:08:53,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:08:53,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:08:54,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:08:54,098 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:08:54,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:08:54,145 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:08:54,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54 WrapperNode [2022-12-13 19:08:54,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:08:54,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:08:54,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:08:54,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:08:54,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,177 INFO L138 Inliner]: procedures = 115, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2022-12-13 19:08:54,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:08:54,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:08:54,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:08:54,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:08:54,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,196 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:08:54,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:08:54,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:08:54,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:08:54,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:08:54,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:54,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:08:54,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:08:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 19:08:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 19:08:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:08:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:08:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:08:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:08:54,334 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:08:54,336 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:08:54,469 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:08:54,473 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:08:54,473 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 19:08:54,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:08:54 BoogieIcfgContainer [2022-12-13 19:08:54,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:08:54,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:08:54,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:08:54,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:08:54,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:08:53" (1/3) ... [2022-12-13 19:08:54,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4c8364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:08:54, skipping insertion in model container [2022-12-13 19:08:54,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (2/3) ... [2022-12-13 19:08:54,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4c8364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:08:54, skipping insertion in model container [2022-12-13 19:08:54,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:08:54" (3/3) ... [2022-12-13 19:08:54,482 INFO L112 eAbstractionObserver]: Analyzing ICFG mult_array-alloca-1.i [2022-12-13 19:08:54,497 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:08:54,497 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 19:08:54,534 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:08:54,539 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@40d4c5f2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:08:54,539 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 19:08:54,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 31 states have internal predecessors, (38), 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) [2022-12-13 19:08:54,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 19:08:54,548 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:08:54,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:54,549 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:08:54,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:54,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1804966406, now seen corresponding path program 1 times [2022-12-13 19:08:54,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:54,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747317611] [2022-12-13 19:08:54,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:54,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:54,645 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:08:54,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [997824274] [2022-12-13 19:08:54,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:54,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:54,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:54,647 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:54,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 19:08:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:54,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 19:08:54,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:54,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:08:54,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:08:54,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:54,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747317611] [2022-12-13 19:08:54,771 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:08:54,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997824274] [2022-12-13 19:08:54,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997824274] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:08:54,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:08:54,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:08:54,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326376900] [2022-12-13 19:08:54,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:54,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:08:54,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:54,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:08:54,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:08:54,812 INFO L87 Difference]: Start difference. First operand has 32 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-12-13 19:08:54,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:08:54,889 INFO L93 Difference]: Finished difference Result 73 states and 85 transitions. [2022-12-13 19:08:54,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:08:54,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2022-12-13 19:08:54,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:08:54,897 INFO L225 Difference]: With dead ends: 73 [2022-12-13 19:08:54,897 INFO L226 Difference]: Without dead ends: 49 [2022-12-13 19:08:54,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:08:54,903 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 82 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:08:54,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 38 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:08:54,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-12-13 19:08:54,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2022-12-13 19:08:54,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 42 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:54,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2022-12-13 19:08:54,938 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 7 [2022-12-13 19:08:54,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:08:54,938 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2022-12-13 19:08:54,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-12-13 19:08:54,939 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2022-12-13 19:08:54,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 19:08:54,939 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:08:54,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:54,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:08:55,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-13 19:08:55,142 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:08:55,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:55,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1804968328, now seen corresponding path program 1 times [2022-12-13 19:08:55,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:55,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009824702] [2022-12-13 19:08:55,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:55,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:55,181 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:08:55,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2122264379] [2022-12-13 19:08:55,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:55,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:55,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:55,187 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:55,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 19:08:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:55,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:08:55,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:55,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:08:55,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:08:55,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:55,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009824702] [2022-12-13 19:08:55,314 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:08:55,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122264379] [2022-12-13 19:08:55,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122264379] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:08:55,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:08:55,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:08:55,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813951114] [2022-12-13 19:08:55,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:55,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:08:55,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:55,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:08:55,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:08:55,317 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-12-13 19:08:55,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:08:55,344 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2022-12-13 19:08:55,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:08:55,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2022-12-13 19:08:55,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:08:55,345 INFO L225 Difference]: With dead ends: 43 [2022-12-13 19:08:55,345 INFO L226 Difference]: Without dead ends: 41 [2022-12-13 19:08:55,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:08:55,346 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 43 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:08:55,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 18 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:08:55,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-13 19:08:55,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 26. [2022-12-13 19:08:55,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 25 states have internal predecessors, (29), 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) [2022-12-13 19:08:55,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-12-13 19:08:55,349 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 7 [2022-12-13 19:08:55,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:08:55,350 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-12-13 19:08:55,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-12-13 19:08:55,350 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-12-13 19:08:55,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 19:08:55,350 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:08:55,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:55,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 19:08:55,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:55,553 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:08:55,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:55,555 INFO L85 PathProgramCache]: Analyzing trace with hash 119383788, now seen corresponding path program 1 times [2022-12-13 19:08:55,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:55,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578080077] [2022-12-13 19:08:55,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:55,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:55,586 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:08:55,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440698882] [2022-12-13 19:08:55,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:55,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:55,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:55,592 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:55,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 19:08:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:55,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 19:08:55,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:55,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:08:55,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:08:55,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:55,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578080077] [2022-12-13 19:08:55,711 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:08:55,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440698882] [2022-12-13 19:08:55,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440698882] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:08:55,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:08:55,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:08:55,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221838358] [2022-12-13 19:08:55,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:55,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:08:55,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:55,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:08:55,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:08:55,713 INFO L87 Difference]: Start difference. First operand 26 states and 29 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) [2022-12-13 19:08:55,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:08:55,765 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2022-12-13 19:08:55,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:08:55,765 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 [2022-12-13 19:08:55,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:08:55,766 INFO L225 Difference]: With dead ends: 70 [2022-12-13 19:08:55,766 INFO L226 Difference]: Without dead ends: 68 [2022-12-13 19:08:55,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:08:55,767 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 41 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:08:55,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 44 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:08:55,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-12-13 19:08:55,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 43. [2022-12-13 19:08:55,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 42 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:55,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2022-12-13 19:08:55,772 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 8 [2022-12-13 19:08:55,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:08:55,772 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2022-12-13 19:08:55,772 INFO L496 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) [2022-12-13 19:08:55,772 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2022-12-13 19:08:55,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 19:08:55,772 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:08:55,772 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:55,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 19:08:55,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:55,975 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:08:55,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:55,977 INFO L85 PathProgramCache]: Analyzing trace with hash 119443370, now seen corresponding path program 1 times [2022-12-13 19:08:55,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:55,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351225169] [2022-12-13 19:08:55,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:55,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:56,009 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:08:56,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [826009290] [2022-12-13 19:08:56,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:56,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:56,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:56,014 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:56,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 19:08:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:56,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:08:56,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:56,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:08:56,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:08:56,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:56,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351225169] [2022-12-13 19:08:56,155 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:08:56,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826009290] [2022-12-13 19:08:56,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826009290] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:08:56,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:08:56,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:08:56,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573227806] [2022-12-13 19:08:56,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:56,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:08:56,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:56,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:08:56,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:08:56,157 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 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) [2022-12-13 19:08:56,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:08:56,207 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2022-12-13 19:08:56,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:08:56,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 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 [2022-12-13 19:08:56,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:08:56,208 INFO L225 Difference]: With dead ends: 64 [2022-12-13 19:08:56,208 INFO L226 Difference]: Without dead ends: 62 [2022-12-13 19:08:56,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:08:56,209 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 18 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:08:56,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 59 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:08:56,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-13 19:08:56,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 43. [2022-12-13 19:08:56,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 42 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:56,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2022-12-13 19:08:56,213 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 8 [2022-12-13 19:08:56,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:08:56,213 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2022-12-13 19:08:56,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 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) [2022-12-13 19:08:56,213 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2022-12-13 19:08:56,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 19:08:56,213 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:08:56,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:56,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-13 19:08:56,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:56,415 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:08:56,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:56,417 INFO L85 PathProgramCache]: Analyzing trace with hash 176642090, now seen corresponding path program 1 times [2022-12-13 19:08:56,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:56,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328875811] [2022-12-13 19:08:56,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:56,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:56,441 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:08:56,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139116558] [2022-12-13 19:08:56,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:56,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:56,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:56,445 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:56,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 19:08:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:56,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 19:08:56,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:56,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:08:56,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:08:56,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:56,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328875811] [2022-12-13 19:08:56,601 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:08:56,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139116558] [2022-12-13 19:08:56,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139116558] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:08:56,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:08:56,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:08:56,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791185703] [2022-12-13 19:08:56,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:56,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:08:56,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:56,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:08:56,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:08:56,602 INFO L87 Difference]: Start difference. First operand 43 states and 52 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) [2022-12-13 19:08:56,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:08:56,635 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2022-12-13 19:08:56,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:08:56,635 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 [2022-12-13 19:08:56,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:08:56,636 INFO L225 Difference]: With dead ends: 79 [2022-12-13 19:08:56,636 INFO L226 Difference]: Without dead ends: 77 [2022-12-13 19:08:56,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:08:56,636 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 59 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:08:56,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 28 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:08:56,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-12-13 19:08:56,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 43. [2022-12-13 19:08:56,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 42 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:56,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2022-12-13 19:08:56,641 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 8 [2022-12-13 19:08:56,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:08:56,641 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2022-12-13 19:08:56,641 INFO L496 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) [2022-12-13 19:08:56,641 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2022-12-13 19:08:56,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 19:08:56,642 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:08:56,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:56,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 19:08:56,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:56,843 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:08:56,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:56,845 INFO L85 PathProgramCache]: Analyzing trace with hash 176701672, now seen corresponding path program 1 times [2022-12-13 19:08:56,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:56,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681716231] [2022-12-13 19:08:56,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:56,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:56,867 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:08:56,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [782263889] [2022-12-13 19:08:56,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:56,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:56,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:56,871 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:56,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 19:08:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:57,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 19:08:57,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:57,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:08:57,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:08:57,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:57,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681716231] [2022-12-13 19:08:57,827 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:08:57,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782263889] [2022-12-13 19:08:57,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782263889] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:08:57,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:08:57,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:08:57,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765095263] [2022-12-13 19:08:57,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:57,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:08:57,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:57,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:08:57,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:08:57,828 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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) [2022-12-13 19:08:58,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:08:58,260 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2022-12-13 19:08:58,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:08:58,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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 [2022-12-13 19:08:58,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:08:58,261 INFO L225 Difference]: With dead ends: 62 [2022-12-13 19:08:58,261 INFO L226 Difference]: Without dead ends: 60 [2022-12-13 19:08:58,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:08:58,262 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 59 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 19:08:58,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 41 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 19:08:58,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-12-13 19:08:58,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 24. [2022-12-13 19:08:58,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.35) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:58,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-12-13 19:08:58,266 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 8 [2022-12-13 19:08:58,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:08:58,266 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-12-13 19:08:58,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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) [2022-12-13 19:08:58,266 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-12-13 19:08:58,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 19:08:58,266 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:08:58,267 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:58,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 19:08:58,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 19:08:58,469 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:08:58,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:58,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1626490358, now seen corresponding path program 1 times [2022-12-13 19:08:58,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:58,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263289678] [2022-12-13 19:08:58,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:58,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:58,486 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:08:58,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [367729335] [2022-12-13 19:08:58,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:58,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:58,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:58,487 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:58,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 19:08:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:58,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:08:58,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:58,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:08:58,542 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:08:58,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:58,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263289678] [2022-12-13 19:08:58,543 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:08:58,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367729335] [2022-12-13 19:08:58,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367729335] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:08:58,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:08:58,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:08:58,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161196570] [2022-12-13 19:08:58,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:58,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:08:58,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:58,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:08:58,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:08:58,544 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:58,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:08:58,561 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-12-13 19:08:58,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:08:58,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-13 19:08:58,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:08:58,562 INFO L225 Difference]: With dead ends: 24 [2022-12-13 19:08:58,562 INFO L226 Difference]: Without dead ends: 23 [2022-12-13 19:08:58,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:08:58,563 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 15 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 46 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 [2022-12-13 19:08:58,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 46 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:08:58,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-13 19:08:58,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-12-13 19:08:58,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 20 states have (on average 1.3) internal successors, (26), 22 states have internal predecessors, (26), 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) [2022-12-13 19:08:58,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-12-13 19:08:58,566 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 12 [2022-12-13 19:08:58,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:08:58,566 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-12-13 19:08:58,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:58,566 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-12-13 19:08:58,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 19:08:58,567 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:08:58,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:58,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 19:08:58,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-13 19:08:58,768 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:08:58,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:58,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1118406385, now seen corresponding path program 1 times [2022-12-13 19:08:58,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:58,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574793825] [2022-12-13 19:08:58,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:58,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:58,774 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:08:58,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305730394] [2022-12-13 19:08:58,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:58,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:58,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:58,776 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:58,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 19:08:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:58,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:08:58,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:58,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:08:58,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:08:58,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:58,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574793825] [2022-12-13 19:08:58,831 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:08:58,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305730394] [2022-12-13 19:08:58,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305730394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:08:58,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:08:58,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:08:58,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148516357] [2022-12-13 19:08:58,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:58,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:08:58,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:58,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:08:58,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:08:58,833 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-12-13 19:08:58,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:08:58,857 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-12-13 19:08:58,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:08:58,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2022-12-13 19:08:58,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:08:58,858 INFO L225 Difference]: With dead ends: 37 [2022-12-13 19:08:58,859 INFO L226 Difference]: Without dead ends: 36 [2022-12-13 19:08:58,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:08:58,859 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:08:58,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 57 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:08:58,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-13 19:08:58,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2022-12-13 19:08:58,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:58,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-12-13 19:08:58,863 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 13 [2022-12-13 19:08:58,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:08:58,863 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-12-13 19:08:58,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-12-13 19:08:58,863 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-12-13 19:08:58,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 19:08:58,864 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:08:58,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:58,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 19:08:59,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 19:08:59,064 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:08:59,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:59,065 INFO L85 PathProgramCache]: Analyzing trace with hash 376263582, now seen corresponding path program 1 times [2022-12-13 19:08:59,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:59,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098578483] [2022-12-13 19:08:59,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:59,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:59,072 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:08:59,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1541913453] [2022-12-13 19:08:59,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:59,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:59,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:59,074 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:59,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 19:08:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:59,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:08:59,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:59,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:08:59,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:08:59,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:59,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098578483] [2022-12-13 19:08:59,138 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:08:59,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541913453] [2022-12-13 19:08:59,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541913453] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:08:59,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:08:59,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:08:59,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012915223] [2022-12-13 19:08:59,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:59,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:08:59,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:59,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:08:59,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:08:59,140 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:59,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:08:59,166 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2022-12-13 19:08:59,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:08:59,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-12-13 19:08:59,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:08:59,167 INFO L225 Difference]: With dead ends: 36 [2022-12-13 19:08:59,167 INFO L226 Difference]: Without dead ends: 27 [2022-12-13 19:08:59,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:08:59,168 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 23 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:08:59,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 25 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:08:59,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-13 19:08:59,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-12-13 19:08:59,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.25) internal successors, (30), 26 states have internal predecessors, (30), 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) [2022-12-13 19:08:59,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-12-13 19:08:59,172 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 16 [2022-12-13 19:08:59,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:08:59,172 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-12-13 19:08:59,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:59,172 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-12-13 19:08:59,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 19:08:59,173 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:08:59,173 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:59,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 19:08:59,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:59,375 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:08:59,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:59,376 INFO L85 PathProgramCache]: Analyzing trace with hash -865928877, now seen corresponding path program 1 times [2022-12-13 19:08:59,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:59,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313312513] [2022-12-13 19:08:59,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:59,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:59,408 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:08:59,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870922639] [2022-12-13 19:08:59,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:59,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:59,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:59,411 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:59,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 19:08:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:59,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:08:59,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:59,500 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:08:59,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:08:59,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:59,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313312513] [2022-12-13 19:08:59,501 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:08:59,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870922639] [2022-12-13 19:08:59,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870922639] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:08:59,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:08:59,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 19:08:59,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956254121] [2022-12-13 19:08:59,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:59,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:08:59,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:59,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:08:59,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:08:59,502 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-12-13 19:08:59,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:08:59,579 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2022-12-13 19:08:59,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:08:59,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-12-13 19:08:59,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:08:59,580 INFO L225 Difference]: With dead ends: 61 [2022-12-13 19:08:59,580 INFO L226 Difference]: Without dead ends: 47 [2022-12-13 19:08:59,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:08:59,581 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 33 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:08:59,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 35 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:08:59,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-12-13 19:08:59,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 38. [2022-12-13 19:08:59,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.2) internal successors, (42), 37 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:59,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-12-13 19:08:59,587 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 17 [2022-12-13 19:08:59,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:08:59,588 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-12-13 19:08:59,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-12-13 19:08:59,588 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-12-13 19:08:59,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 19:08:59,588 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:08:59,588 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:59,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-13 19:08:59,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 19:08:59,790 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:08:59,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:59,791 INFO L85 PathProgramCache]: Analyzing trace with hash -2145792555, now seen corresponding path program 1 times [2022-12-13 19:08:59,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:59,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928005820] [2022-12-13 19:08:59,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:59,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:59,815 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:08:59,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1753242664] [2022-12-13 19:08:59,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:59,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:59,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:59,818 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:59,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 19:08:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:59,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:08:59,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:59,950 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:08:59,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:08:59,978 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:08:59,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:59,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928005820] [2022-12-13 19:08:59,978 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:08:59,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753242664] [2022-12-13 19:08:59,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753242664] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:08:59,979 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:08:59,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-12-13 19:08:59,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418602191] [2022-12-13 19:08:59,979 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:08:59,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 19:08:59,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:59,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 19:08:59,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 19:08:59,980 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 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) [2022-12-13 19:09:00,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:09:00,159 INFO L93 Difference]: Finished difference Result 78 states and 87 transitions. [2022-12-13 19:09:00,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 19:09:00,159 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-12-13 19:09:00,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:09:00,160 INFO L225 Difference]: With dead ends: 78 [2022-12-13 19:09:00,160 INFO L226 Difference]: Without dead ends: 77 [2022-12-13 19:09:00,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-12-13 19:09:00,160 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 38 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:09:00,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 147 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:09:00,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-12-13 19:09:00,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 50. [2022-12-13 19:09:00,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 47 states have (on average 1.2127659574468086) internal successors, (57), 49 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:00,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2022-12-13 19:09:00,166 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 17 [2022-12-13 19:09:00,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:09:00,166 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2022-12-13 19:09:00,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 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) [2022-12-13 19:09:00,166 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2022-12-13 19:09:00,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 19:09:00,166 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:09:00,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:00,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 19:09:00,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:09:00,367 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:09:00,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:00,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1445969114, now seen corresponding path program 1 times [2022-12-13 19:09:00,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:00,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855481034] [2022-12-13 19:09:00,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:00,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:00,376 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:09:00,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [695466214] [2022-12-13 19:09:00,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:00,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:09:00,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:09:00,377 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:09:00,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 19:09:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:00,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:09:00,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:09:00,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 19:09:00,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:09:00,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:00,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855481034] [2022-12-13 19:09:00,447 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:09:00,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695466214] [2022-12-13 19:09:00,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695466214] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:00,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:00,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:09:00,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368912952] [2022-12-13 19:09:00,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:00,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:09:00,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:00,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:09:00,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:09:00,448 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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) [2022-12-13 19:09:00,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:09:00,500 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2022-12-13 19:09:00,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:09:00,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2022-12-13 19:09:00,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:09:00,502 INFO L225 Difference]: With dead ends: 50 [2022-12-13 19:09:00,502 INFO L226 Difference]: Without dead ends: 49 [2022-12-13 19:09:00,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:09:00,503 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 5 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 55 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 [2022-12-13 19:09:00,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 55 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:09:00,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-12-13 19:09:00,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-12-13 19:09:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 48 states have internal predecessors, (56), 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) [2022-12-13 19:09:00,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2022-12-13 19:09:00,513 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 20 [2022-12-13 19:09:00,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:09:00,514 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2022-12-13 19:09:00,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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) [2022-12-13 19:09:00,514 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2022-12-13 19:09:00,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-13 19:09:00,515 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:09:00,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:00,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 19:09:00,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-13 19:09:00,715 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:09:00,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:00,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1875369665, now seen corresponding path program 1 times [2022-12-13 19:09:00,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:00,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056384822] [2022-12-13 19:09:00,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:00,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:00,726 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:09:00,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1660961282] [2022-12-13 19:09:00,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:00,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:09:00,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:09:00,727 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:09:00,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 19:09:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:00,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:09:00,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:09:00,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 19:09:00,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:09:00,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:00,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056384822] [2022-12-13 19:09:00,787 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:09:00,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660961282] [2022-12-13 19:09:00,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660961282] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:00,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:00,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:09:00,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280061636] [2022-12-13 19:09:00,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:00,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:09:00,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:00,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:09:00,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:09:00,788 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-12-13 19:09:00,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:09:00,829 INFO L93 Difference]: Finished difference Result 56 states and 63 transitions. [2022-12-13 19:09:00,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:09:00,830 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), 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 21 [2022-12-13 19:09:00,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:09:00,830 INFO L225 Difference]: With dead ends: 56 [2022-12-13 19:09:00,831 INFO L226 Difference]: Without dead ends: 55 [2022-12-13 19:09:00,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:09:00,831 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:09:00,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 60 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:09:00,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-12-13 19:09:00,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-12-13 19:09:00,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 53 states have (on average 1.169811320754717) internal successors, (62), 54 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:00,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2022-12-13 19:09:00,838 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 21 [2022-12-13 19:09:00,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:09:00,838 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2022-12-13 19:09:00,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-12-13 19:09:00,838 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2022-12-13 19:09:00,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-13 19:09:00,839 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:09:00,839 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:00,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 19:09:01,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 19:09:01,040 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:09:01,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:01,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1361401863, now seen corresponding path program 1 times [2022-12-13 19:09:01,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:01,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879190497] [2022-12-13 19:09:01,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:01,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:01,050 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:09:01,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1034352835] [2022-12-13 19:09:01,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:01,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:09:01,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:09:01,051 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:09:01,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 19:09:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:01,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:09:01,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:09:01,120 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 19:09:01,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:09:01,146 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 19:09:01,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:01,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879190497] [2022-12-13 19:09:01,146 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:09:01,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034352835] [2022-12-13 19:09:01,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034352835] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:09:01,147 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:09:01,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-12-13 19:09:01,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080622390] [2022-12-13 19:09:01,147 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:09:01,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 19:09:01,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:01,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 19:09:01,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 19:09:01,148 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 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) [2022-12-13 19:09:01,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:09:01,300 INFO L93 Difference]: Finished difference Result 74 states and 83 transitions. [2022-12-13 19:09:01,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 19:09:01,301 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 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 27 [2022-12-13 19:09:01,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:09:01,301 INFO L225 Difference]: With dead ends: 74 [2022-12-13 19:09:01,301 INFO L226 Difference]: Without dead ends: 73 [2022-12-13 19:09:01,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-12-13 19:09:01,302 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 8 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:09:01,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 136 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:09:01,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-12-13 19:09:01,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-12-13 19:09:01,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 71 states have (on average 1.1267605633802817) internal successors, (80), 72 states have internal predecessors, (80), 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) [2022-12-13 19:09:01,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2022-12-13 19:09:01,313 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 27 [2022-12-13 19:09:01,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:09:01,313 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2022-12-13 19:09:01,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 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) [2022-12-13 19:09:01,313 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2022-12-13 19:09:01,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-13 19:09:01,314 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:09:01,314 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:01,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 19:09:01,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 19:09:01,515 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:09:01,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:01,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1889267807, now seen corresponding path program 2 times [2022-12-13 19:09:01,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:01,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963369101] [2022-12-13 19:09:01,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:01,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:01,523 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:09:01,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [732168996] [2022-12-13 19:09:01,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:09:01,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:09:01,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:09:01,525 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:09:01,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 19:09:01,584 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 19:09:01,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:09:01,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 19:09:01,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:09:01,619 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 19:09:01,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:09:01,647 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 19:09:01,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:01,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963369101] [2022-12-13 19:09:01,647 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:09:01,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732168996] [2022-12-13 19:09:01,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732168996] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:09:01,647 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:09:01,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2022-12-13 19:09:01,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712321907] [2022-12-13 19:09:01,648 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:09:01,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:09:01,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:01,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:09:01,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:09:01,649 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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) [2022-12-13 19:09:01,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:09:01,707 INFO L93 Difference]: Finished difference Result 73 states and 80 transitions. [2022-12-13 19:09:01,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:09:01,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 29 [2022-12-13 19:09:01,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:09:01,708 INFO L225 Difference]: With dead ends: 73 [2022-12-13 19:09:01,708 INFO L226 Difference]: Without dead ends: 72 [2022-12-13 19:09:01,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:09:01,709 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:09:01,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 25 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:09:01,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-12-13 19:09:01,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 57. [2022-12-13 19:09:01,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.0892857142857142) internal successors, (61), 56 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:01,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2022-12-13 19:09:01,714 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 29 [2022-12-13 19:09:01,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:09:01,714 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2022-12-13 19:09:01,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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) [2022-12-13 19:09:01,714 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2022-12-13 19:09:01,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-13 19:09:01,715 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:09:01,715 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:01,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-12-13 19:09:01,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 19:09:01,917 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:09:01,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:01,918 INFO L85 PathProgramCache]: Analyzing trace with hash 241432793, now seen corresponding path program 2 times [2022-12-13 19:09:01,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:01,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9075059] [2022-12-13 19:09:01,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:01,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:01,930 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:09:01,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [376089433] [2022-12-13 19:09:01,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:09:01,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:09:01,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:09:01,932 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:09:01,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 19:09:01,992 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 19:09:01,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:09:01,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 19:09:01,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:09:03,318 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~fac~0#1| Int) (|ULTIMATE.start_main_~length~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~length~0#1| |ULTIMATE.start_main_~fac~0#1|))) (and (<= .cse0 2147483647) (< |c_ULTIMATE.start_main_~j~0#1| .cse0)))) is different from true [2022-12-13 19:09:04,587 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~fac~0#1| Int) (|ULTIMATE.start_main_~length~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~length~0#1| |ULTIMATE.start_main_~fac~0#1|))) (and (<= (+ |c_ULTIMATE.start_main_#t~post8#1| 1) .cse0) (<= .cse0 2147483647)))) is different from true [2022-12-13 19:09:04,599 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 12 not checked. [2022-12-13 19:09:04,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:09:04,644 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-12-13 19:09:04,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:04,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9075059] [2022-12-13 19:09:04,644 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:09:04,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376089433] [2022-12-13 19:09:04,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376089433] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:09:04,644 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:09:04,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-12-13 19:09:04,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242104442] [2022-12-13 19:09:04,645 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:09:04,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:09:04,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:04,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:09:04,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=15, Unknown=2, NotChecked=14, Total=42 [2022-12-13 19:09:04,645 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 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) [2022-12-13 19:09:11,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:09:11,026 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2022-12-13 19:09:11,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:09:11,026 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-12-13 19:09:11,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:09:11,026 INFO L225 Difference]: With dead ends: 57 [2022-12-13 19:09:11,026 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 19:09:11,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=26, Invalid=34, Unknown=4, NotChecked=26, Total=90 [2022-12-13 19:09:11,027 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:09:11,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 43 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 48 Unchecked, 0.1s Time] [2022-12-13 19:09:11,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 19:09:11,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 19:09:11,027 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) [2022-12-13 19:09:11,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 19:09:11,028 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2022-12-13 19:09:11,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:09:11,028 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 19:09:11,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 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) [2022-12-13 19:09:11,028 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 19:09:11,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 19:09:11,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-12-13 19:09:11,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-12-13 19:09:11,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-13 19:09:11,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-13 19:09:11,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-13 19:09:11,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-13 19:09:11,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-13 19:09:11,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-13 19:09:11,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-12-13 19:09:11,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:09:11,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 19:09:17,694 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 521) no Hoare annotation was computed. [2022-12-13 19:09:17,694 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 512 528) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~length~0#1|) [2022-12-13 19:09:17,694 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 524) no Hoare annotation was computed. [2022-12-13 19:09:17,694 INFO L899 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2022-12-13 19:09:17,694 INFO L899 garLoopResultBuilder]: For program point L519-1(line 519) no Hoare annotation was computed. [2022-12-13 19:09:17,694 INFO L899 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2022-12-13 19:09:17,694 INFO L899 garLoopResultBuilder]: For program point L515-2(line 515) no Hoare annotation was computed. [2022-12-13 19:09:17,694 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 19:09:17,694 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 519) no Hoare annotation was computed. [2022-12-13 19:09:17,695 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 524) no Hoare annotation was computed. [2022-12-13 19:09:17,695 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 19:09:17,695 INFO L899 garLoopResultBuilder]: For program point L524-1(line 524) no Hoare annotation was computed. [2022-12-13 19:09:17,695 INFO L899 garLoopResultBuilder]: For program point L524-2(lines 524 526) no Hoare annotation was computed. [2022-12-13 19:09:17,695 INFO L899 garLoopResultBuilder]: For program point L520(line 520) no Hoare annotation was computed. [2022-12-13 19:09:17,695 INFO L899 garLoopResultBuilder]: For program point L524-4(lines 524 526) no Hoare annotation was computed. [2022-12-13 19:09:17,695 INFO L899 garLoopResultBuilder]: For program point L524-5(line 524) no Hoare annotation was computed. [2022-12-13 19:09:17,695 INFO L899 garLoopResultBuilder]: For program point L524-6(line 524) no Hoare annotation was computed. [2022-12-13 19:09:17,695 INFO L895 garLoopResultBuilder]: At program point L524-7(lines 524 526) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 1 |ULTIMATE.start_main_~length~0#1|) (let ((.cse1 (<= |ULTIMATE.start_main_~fac~0#1| 2147483647)) (.cse2 (not (< |ULTIMATE.start_main_~fac~0#1| 1))) (.cse0 (<= |ULTIMATE.start_main_~length~0#1| 2147483647)) (.cse3 (not (<= 536870911 (mod |ULTIMATE.start_main_~length~0#1| 4294967296))))) (or (and .cse0 .cse1 .cse2 (not (<= (mod (div 2147483647 (* (mod |ULTIMATE.start_main_~length~0#1| 1073741824) 4)) 4294967296) (mod |ULTIMATE.start_main_~fac~0#1| 4294967296))) .cse3) (and (or (and (<= |ULTIMATE.start_main_~length~0#1| 1) .cse1 .cse2) (and .cse0 (= 1 |ULTIMATE.start_main_~fac~0#1|))) .cse3)))) [2022-12-13 19:09:17,695 INFO L899 garLoopResultBuilder]: For program point L524-8(lines 524 526) no Hoare annotation was computed. [2022-12-13 19:09:17,695 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 519) no Hoare annotation was computed. [2022-12-13 19:09:17,695 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 19:09:17,695 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 524) no Hoare annotation was computed. [2022-12-13 19:09:17,695 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 19:09:17,695 INFO L899 garLoopResultBuilder]: For program point L521-2(lines 521 523) no Hoare annotation was computed. [2022-12-13 19:09:17,695 INFO L899 garLoopResultBuilder]: For program point L521-3(line 521) no Hoare annotation was computed. [2022-12-13 19:09:17,695 INFO L899 garLoopResultBuilder]: For program point L517(line 517) no Hoare annotation was computed. [2022-12-13 19:09:17,695 INFO L899 garLoopResultBuilder]: For program point L521-4(line 521) no Hoare annotation was computed. [2022-12-13 19:09:17,696 INFO L895 garLoopResultBuilder]: At program point L521-5(lines 521 523) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 1 |ULTIMATE.start_main_~length~0#1|) (let ((.cse1 (<= |ULTIMATE.start_main_~fac~0#1| 2147483647)) (.cse2 (not (< |ULTIMATE.start_main_~fac~0#1| 1))) (.cse0 (<= |ULTIMATE.start_main_~length~0#1| 2147483647)) (.cse3 (not (<= 536870911 (mod |ULTIMATE.start_main_~length~0#1| 4294967296))))) (or (and .cse0 .cse1 .cse2 (not (<= (mod (div 2147483647 (* (mod |ULTIMATE.start_main_~length~0#1| 1073741824) 4)) 4294967296) (mod |ULTIMATE.start_main_~fac~0#1| 4294967296))) .cse3) (and (or (and (<= |ULTIMATE.start_main_~length~0#1| 1) .cse1 .cse2) (and .cse0 (= 1 |ULTIMATE.start_main_~fac~0#1|))) .cse3)))) [2022-12-13 19:09:17,696 INFO L899 garLoopResultBuilder]: For program point L517-2(line 517) no Hoare annotation was computed. [2022-12-13 19:09:17,696 INFO L899 garLoopResultBuilder]: For program point L521-6(lines 521 523) no Hoare annotation was computed. [2022-12-13 19:09:17,696 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 521) no Hoare annotation was computed. [2022-12-13 19:09:17,696 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 524) no Hoare annotation was computed. [2022-12-13 19:09:17,698 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:17,700 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:09:17,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:09:17 BoogieIcfgContainer [2022-12-13 19:09:17,713 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:09:17,714 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:09:17,714 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:09:17,714 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:09:17,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:08:54" (3/4) ... [2022-12-13 19:09:17,717 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 19:09:17,725 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-13 19:09:17,726 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 19:09:17,726 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 19:09:17,726 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 19:09:17,753 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:09:17,753 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:09:17,754 INFO L158 Benchmark]: Toolchain (without parser) took 23945.41ms. Allocated memory was 153.1MB in the beginning and 285.2MB in the end (delta: 132.1MB). Free memory was 115.7MB in the beginning and 176.8MB in the end (delta: -61.1MB). Peak memory consumption was 74.0MB. Max. memory is 16.1GB. [2022-12-13 19:09:17,754 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 98.6MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:09:17,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.67ms. Allocated memory is still 153.1MB. Free memory was 115.7MB in the beginning and 99.9MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 19:09:17,755 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.33ms. Allocated memory is still 153.1MB. Free memory was 99.9MB in the beginning and 97.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:09:17,755 INFO L158 Benchmark]: Boogie Preprocessor took 21.16ms. Allocated memory is still 153.1MB. Free memory was 97.8MB in the beginning and 96.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:09:17,755 INFO L158 Benchmark]: RCFGBuilder took 275.07ms. Allocated memory is still 153.1MB. Free memory was 96.7MB in the beginning and 84.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 19:09:17,755 INFO L158 Benchmark]: TraceAbstraction took 23236.31ms. Allocated memory was 153.1MB in the beginning and 285.2MB in the end (delta: 132.1MB). Free memory was 83.6MB in the beginning and 179.9MB in the end (delta: -96.3MB). Peak memory consumption was 131.4MB. Max. memory is 16.1GB. [2022-12-13 19:09:17,756 INFO L158 Benchmark]: Witness Printer took 39.69ms. Allocated memory is still 285.2MB. Free memory was 179.9MB in the beginning and 176.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 19:09:17,757 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 98.6MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.67ms. Allocated memory is still 153.1MB. Free memory was 115.7MB in the beginning and 99.9MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.33ms. Allocated memory is still 153.1MB. Free memory was 99.9MB in the beginning and 97.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.16ms. Allocated memory is still 153.1MB. Free memory was 97.8MB in the beginning and 96.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 275.07ms. Allocated memory is still 153.1MB. Free memory was 96.7MB in the beginning and 84.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 23236.31ms. Allocated memory was 153.1MB in the beginning and 285.2MB in the end (delta: 132.1MB). Free memory was 83.6MB in the beginning and 179.9MB in the end (delta: -96.3MB). Peak memory consumption was 131.4MB. Max. memory is 16.1GB. * Witness Printer took 39.69ms. Allocated memory is still 285.2MB. Free memory was 179.9MB in the beginning and 176.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 519]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 519]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 521]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 521]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 524]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 524]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 524]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 524]: 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 1 procedures, 32 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 23.2s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 454 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 454 mSDsluCounter, 857 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 48 IncrementalHoareTripleChecker+Unchecked, 568 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 507 IncrementalHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 289 mSDtfsCounter, 507 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 379 GetRequests, 305 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 9.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=14, InterpolantAutomatonStates: 84, 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, 16 MinimizatonAttempts, 195 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 14 NumberOfFragments, 136 HoareAnnotationTreeSize, 3 FomulaSimplifications, 8726 FormulaSimplificationTreeSizeReduction, 2.9s HoareSimplificationTime, 3 FomulaSimplificationsInter, 45957 FormulaSimplificationTreeSizeReductionInter, 3.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 263 NumberOfCodeBlocks, 219 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 361 ConstructedInterpolants, 3 QuantifiedInterpolants, 1211 SizeOfPredicates, 20 NumberOfNonLiveVariables, 1015 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 20 InterpolantComputations, 12 PerfectInterpolantSequences, 162/230 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 8 specifications checked. All of them hold - InvariantResult [Line: 521]: Loop Invariant Derived loop invariant: (0 <= i && 1 <= length) && (((((length <= 2147483647 && fac <= 2147483647) && !(fac < 1)) && !(2147483647 / (length % 1073741824 * 4) % 4294967296 <= fac % 4294967296)) && !(536870911 <= length % 4294967296)) || ((((length <= 1 && fac <= 2147483647) && !(fac < 1)) || (length <= 2147483647 && 1 == fac)) && !(536870911 <= length % 4294967296))) - InvariantResult [Line: 512]: Loop Invariant Derived loop invariant: 1 <= length - InvariantResult [Line: 524]: Loop Invariant Derived loop invariant: ((0 <= j && 0 <= i) && 1 <= length) && (((((length <= 2147483647 && fac <= 2147483647) && !(fac < 1)) && !(2147483647 / (length % 1073741824 * 4) % 4294967296 <= fac % 4294967296)) && !(536870911 <= length % 4294967296)) || ((((length <= 1 && fac <= 2147483647) && !(fac < 1)) || (length <= 2147483647 && 1 == fac)) && !(536870911 <= length % 4294967296))) RESULT: Ultimate proved your program to be correct! [2022-12-13 19:09:17,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e4d7935-1772-46aa-8faf-ec033d23acb1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE