./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R --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 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a --- 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-38b53e6 [2022-11-25 17:07:53,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:07:53,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:07:53,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:07:53,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:07:53,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:07:53,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:07:53,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:07:53,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:07:53,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:07:53,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:07:53,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:07:53,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:07:53,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:07:53,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:07:53,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:07:53,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:07:53,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:07:53,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:07:53,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:07:53,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:07:53,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:07:53,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:07:53,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:07:53,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:07:53,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:07:53,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:07:53,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:07:53,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:07:53,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:07:53,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:07:53,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:07:53,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:07:53,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:07:53,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:07:53,781 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:07:53,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:07:53,782 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:07:53,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:07:53,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:07:53,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:07:53,786 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 17:07:53,809 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:07:53,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:07:53,812 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:07:53,813 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:07:53,813 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:07:53,814 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:07:53,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:07:53,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:07:53,815 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:07:53,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:07:53,817 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:07:53,817 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:07:53,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:07:53,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:07:53,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:07:53,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:07:53,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:07:53,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:07:53,820 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:07:53,820 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:07:53,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:07:53,821 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:07:53,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:07:53,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:07:53,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:07:53,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:07:53,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:07:53,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:07:53,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:07:53,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:07:53,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:07:53,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:07:53,824 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:07:53,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:07:53,825 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:07:53,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:07:53,826 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_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a [2022-11-25 17:07:54,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:07:54,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:07:54,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:07:54,207 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:07:54,207 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:07:54,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2022-11-25 17:07:57,362 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:07:57,822 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:07:57,823 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2022-11-25 17:07:57,840 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/data/15c2d0afb/f9a81672085a4b5baa566010122f9e5a/FLAGad197c67b [2022-11-25 17:07:57,854 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/data/15c2d0afb/f9a81672085a4b5baa566010122f9e5a [2022-11-25 17:07:57,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:07:57,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:07:57,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:07:57,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:07:57,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:07:57,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:07:57" (1/1) ... [2022-11-25 17:07:57,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c186ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:57, skipping insertion in model container [2022-11-25 17:07:57,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:07:57" (1/1) ... [2022-11-25 17:07:57,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:07:57,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:07:58,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:07:58,487 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:07:58,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:07:58,603 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:07:58,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:58 WrapperNode [2022-11-25 17:07:58,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:07:58,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:07:58,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:07:58,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:07:58,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:58" (1/1) ... [2022-11-25 17:07:58,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:58" (1/1) ... [2022-11-25 17:07:58,663 INFO L138 Inliner]: procedures = 164, calls = 72, calls flagged for inlining = 21, calls inlined = 3, statements flattened = 51 [2022-11-25 17:07:58,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:07:58,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:07:58,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:07:58,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:07:58,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:58" (1/1) ... [2022-11-25 17:07:58,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:58" (1/1) ... [2022-11-25 17:07:58,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:58" (1/1) ... [2022-11-25 17:07:58,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:58" (1/1) ... [2022-11-25 17:07:58,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:58" (1/1) ... [2022-11-25 17:07:58,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:58" (1/1) ... [2022-11-25 17:07:58,692 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:58" (1/1) ... [2022-11-25 17:07:58,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:58" (1/1) ... [2022-11-25 17:07:58,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:07:58,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:07:58,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:07:58,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:07:58,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:58" (1/1) ... [2022-11-25 17:07:58,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:07:58,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:07:58,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:07:58,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:07:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 17:07:58,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 17:07:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:07:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:07:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:07:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:07:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:07:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 17:07:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:07:58,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:07:58,989 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:07:58,991 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:07:59,175 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:07:59,182 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:07:59,183 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:07:59,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:07:59 BoogieIcfgContainer [2022-11-25 17:07:59,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:07:59,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:07:59,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:07:59,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:07:59,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:07:57" (1/3) ... [2022-11-25 17:07:59,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc5f153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:07:59, skipping insertion in model container [2022-11-25 17:07:59,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:58" (2/3) ... [2022-11-25 17:07:59,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc5f153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:07:59, skipping insertion in model container [2022-11-25 17:07:59,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:07:59" (3/3) ... [2022-11-25 17:07:59,196 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1.i [2022-11-25 17:07:59,220 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:07:59,220 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 17:07:59,281 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:07:59,289 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;@5b2cf932, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:07:59,289 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 17:07:59,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:07:59,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 17:07:59,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:07:59,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:59,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:07:59,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:59,314 INFO L85 PathProgramCache]: Analyzing trace with hash 200136568, now seen corresponding path program 1 times [2022-11-25 17:07:59,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:59,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656166363] [2022-11-25 17:07:59,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:59,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:07:59,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:07:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:07:59,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:07:59,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:07:59,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656166363] [2022-11-25 17:07:59,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656166363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:07:59,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:07:59,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:07:59,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818133056] [2022-11-25 17:07:59,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:07:59,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:07:59,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:07:59,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:07:59,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:07:59,783 INFO L87 Difference]: Start difference. First operand has 32 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:07:59,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:07:59,919 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2022-11-25 17:07:59,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:07:59,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-25 17:07:59,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:07:59,932 INFO L225 Difference]: With dead ends: 69 [2022-11-25 17:07:59,932 INFO L226 Difference]: Without dead ends: 47 [2022-11-25 17:07:59,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:07:59,940 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 49 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:07:59,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 87 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:07:59,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-25 17:08:00,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 34. [2022-11-25 17:08:00,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 29 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:08:00,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2022-11-25 17:08:00,033 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 11 [2022-11-25 17:08:00,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:00,034 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2022-11-25 17:08:00,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:08:00,034 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2022-11-25 17:08:00,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 17:08:00,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:00,036 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:00,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:08:00,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:08:00,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:00,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1822623141, now seen corresponding path program 1 times [2022-11-25 17:08:00,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:00,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022710190] [2022-11-25 17:08:00,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:00,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:00,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:08:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:00,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:08:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:00,293 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:08:00,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:00,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022710190] [2022-11-25 17:08:00,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022710190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:00,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:00,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:08:00,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710873319] [2022-11-25 17:08:00,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:00,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:08:00,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:00,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:08:00,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:08:00,297 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:08:00,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:00,415 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2022-11-25 17:08:00,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:08:00,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2022-11-25 17:08:00,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:00,418 INFO L225 Difference]: With dead ends: 47 [2022-11-25 17:08:00,418 INFO L226 Difference]: Without dead ends: 45 [2022-11-25 17:08:00,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:08:00,420 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 15 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:00,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 96 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:08:00,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-25 17:08:00,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2022-11-25 17:08:00,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 32 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:08:00,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2022-11-25 17:08:00,435 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 19 [2022-11-25 17:08:00,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:00,436 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2022-11-25 17:08:00,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:08:00,436 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2022-11-25 17:08:00,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 17:08:00,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:00,439 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:00,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:08:00,440 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:08:00,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:00,442 INFO L85 PathProgramCache]: Analyzing trace with hash -838035494, now seen corresponding path program 1 times [2022-11-25 17:08:00,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:00,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818676614] [2022-11-25 17:08:00,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:00,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:00,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:08:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:00,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:08:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:00,635 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:08:00,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:00,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818676614] [2022-11-25 17:08:00,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818676614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:00,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:00,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:08:00,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955276037] [2022-11-25 17:08:00,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:00,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:08:00,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:00,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:08:00,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:08:00,639 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:08:00,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:00,702 INFO L93 Difference]: Finished difference Result 77 states and 90 transitions. [2022-11-25 17:08:00,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:08:00,703 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-25 17:08:00,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:00,704 INFO L225 Difference]: With dead ends: 77 [2022-11-25 17:08:00,704 INFO L226 Difference]: Without dead ends: 65 [2022-11-25 17:08:00,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:08:00,706 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 21 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:00,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 155 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:08:00,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-25 17:08:00,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 43. [2022-11-25 17:08:00,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 32 states have (on average 1.3125) internal successors, (42), 36 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 17:08:00,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2022-11-25 17:08:00,717 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 22 [2022-11-25 17:08:00,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:00,718 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2022-11-25 17:08:00,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:08:00,718 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2022-11-25 17:08:00,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 17:08:00,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:00,719 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:00,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:08:00,720 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:08:00,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:00,721 INFO L85 PathProgramCache]: Analyzing trace with hash -789372421, now seen corresponding path program 1 times [2022-11-25 17:08:00,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:00,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970716183] [2022-11-25 17:08:00,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:00,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:00,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:08:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:00,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:08:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:00,954 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:08:00,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:00,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970716183] [2022-11-25 17:08:00,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970716183] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:08:00,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881590240] [2022-11-25 17:08:00,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:00,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:00,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:00,966 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:00,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:08:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:01,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:08:01,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:01,197 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:08:01,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:01,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881590240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:01,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:08:01,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-11-25 17:08:01,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904754350] [2022-11-25 17:08:01,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:01,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:08:01,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:01,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:08:01,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:08:01,209 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:08:01,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:01,301 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2022-11-25 17:08:01,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:08:01,301 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2022-11-25 17:08:01,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:01,304 INFO L225 Difference]: With dead ends: 49 [2022-11-25 17:08:01,304 INFO L226 Difference]: Without dead ends: 47 [2022-11-25 17:08:01,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:08:01,310 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 38 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:01,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 65 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:08:01,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-25 17:08:01,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2022-11-25 17:08:01,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 32 states have (on average 1.25) internal successors, (40), 34 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 17:08:01,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2022-11-25 17:08:01,341 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 22 [2022-11-25 17:08:01,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:01,342 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2022-11-25 17:08:01,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:08:01,343 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2022-11-25 17:08:01,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 17:08:01,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:01,345 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:01,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:01,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:01,553 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:08:01,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:01,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1034548999, now seen corresponding path program 1 times [2022-11-25 17:08:01,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:01,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651582333] [2022-11-25 17:08:01,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:01,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:01,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:08:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:01,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:08:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:01,657 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:08:01,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:01,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651582333] [2022-11-25 17:08:01,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651582333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:01,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:01,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:08:01,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554405414] [2022-11-25 17:08:01,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:01,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:08:01,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:01,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:08:01,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:08:01,668 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:08:01,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:01,780 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2022-11-25 17:08:01,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:08:01,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2022-11-25 17:08:01,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:01,786 INFO L225 Difference]: With dead ends: 48 [2022-11-25 17:08:01,786 INFO L226 Difference]: Without dead ends: 39 [2022-11-25 17:08:01,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:08:01,788 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 7 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:01,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 98 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:08:01,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-25 17:08:01,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2022-11-25 17:08:01,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 28 states have (on average 1.25) internal successors, (35), 31 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 17:08:01,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2022-11-25 17:08:01,806 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 22 [2022-11-25 17:08:01,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:01,807 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2022-11-25 17:08:01,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:08:01,809 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2022-11-25 17:08:01,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 17:08:01,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:01,810 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:01,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:08:01,811 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:08:01,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:01,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1299258798, now seen corresponding path program 1 times [2022-11-25 17:08:01,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:01,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674031024] [2022-11-25 17:08:01,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:01,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:01,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:08:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:01,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:08:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:01,937 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:08:01,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:01,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674031024] [2022-11-25 17:08:01,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674031024] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:08:01,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986266283] [2022-11-25 17:08:01,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:01,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:01,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:01,943 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:01,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:08:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:02,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:08:02,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:02,076 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:08:02,076 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:02,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986266283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:02,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:08:02,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-25 17:08:02,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203734624] [2022-11-25 17:08:02,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:02,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:08:02,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:02,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:08:02,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:08:02,079 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:08:02,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:02,095 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2022-11-25 17:08:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:08:02,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-11-25 17:08:02,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:02,096 INFO L225 Difference]: With dead ends: 37 [2022-11-25 17:08:02,097 INFO L226 Difference]: Without dead ends: 36 [2022-11-25 17:08:02,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:08:02,098 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 15 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:02,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 31 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:08:02,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-25 17:08:02,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-25 17:08:02,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 17:08:02,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2022-11-25 17:08:02,112 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 23 [2022-11-25 17:08:02,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:02,113 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2022-11-25 17:08:02,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:08:02,113 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2022-11-25 17:08:02,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-25 17:08:02,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:02,114 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:02,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:02,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:02,323 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:08:02,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:02,324 INFO L85 PathProgramCache]: Analyzing trace with hash -26339835, now seen corresponding path program 1 times [2022-11-25 17:08:02,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:02,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225413202] [2022-11-25 17:08:02,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:02,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:02,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:08:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:02,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:08:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:02,392 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:08:02,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:02,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225413202] [2022-11-25 17:08:02,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225413202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:02,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:02,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:08:02,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436054737] [2022-11-25 17:08:02,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:02,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:08:02,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:02,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:08:02,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:08:02,395 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:08:02,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:02,435 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2022-11-25 17:08:02,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:08:02,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2022-11-25 17:08:02,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:02,437 INFO L225 Difference]: With dead ends: 36 [2022-11-25 17:08:02,437 INFO L226 Difference]: Without dead ends: 35 [2022-11-25 17:08:02,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:08:02,438 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 8 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:02,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 90 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:08:02,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-25 17:08:02,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-25 17:08:02,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 29 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 17:08:02,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-11-25 17:08:02,443 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 26 [2022-11-25 17:08:02,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:02,444 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-11-25 17:08:02,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:08:02,444 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-11-25 17:08:02,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 17:08:02,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:02,445 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:02,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:08:02,446 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:08:02,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:02,446 INFO L85 PathProgramCache]: Analyzing trace with hash -816534798, now seen corresponding path program 1 times [2022-11-25 17:08:02,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:02,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054446492] [2022-11-25 17:08:02,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:02,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:02,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:08:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:02,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:08:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:02,569 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:08:02,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:02,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054446492] [2022-11-25 17:08:02,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054446492] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:08:02,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776047049] [2022-11-25 17:08:02,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:02,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:02,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:02,571 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:02,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:08:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:02,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:08:02,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:02,784 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:08:02,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:08:02,880 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:08:02,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776047049] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:08:02,880 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:08:02,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-11-25 17:08:02,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672511165] [2022-11-25 17:08:02,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:08:02,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 17:08:02,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:02,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 17:08:02,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:08:02,886 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 13 states have internal predecessors, (40), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 17:08:03,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:03,095 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2022-11-25 17:08:03,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:08:03,096 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 13 states have internal predecessors, (40), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 27 [2022-11-25 17:08:03,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:03,097 INFO L225 Difference]: With dead ends: 67 [2022-11-25 17:08:03,097 INFO L226 Difference]: Without dead ends: 60 [2022-11-25 17:08:03,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:08:03,099 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 74 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:03,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 147 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:08:03,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-25 17:08:03,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 45. [2022-11-25 17:08:03,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 37 states have internal predecessors, (44), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 17:08:03,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2022-11-25 17:08:03,112 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 27 [2022-11-25 17:08:03,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:03,113 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2022-11-25 17:08:03,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 13 states have internal predecessors, (40), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 17:08:03,113 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2022-11-25 17:08:03,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-25 17:08:03,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:03,120 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:03,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:03,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-25 17:08:03,326 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:08:03,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:03,326 INFO L85 PathProgramCache]: Analyzing trace with hash 623192612, now seen corresponding path program 1 times [2022-11-25 17:08:03,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:03,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090725633] [2022-11-25 17:08:03,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:03,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:03,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:08:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:03,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:08:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:03,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-25 17:08:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:03,485 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 17:08:03,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:03,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090725633] [2022-11-25 17:08:03,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090725633] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:08:03,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184796917] [2022-11-25 17:08:03,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:03,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:03,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:03,487 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:03,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:08:03,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:03,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:08:03,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:03,660 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 17:08:03,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:08:03,735 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 17:08:03,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184796917] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:08:03,736 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:08:03,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-11-25 17:08:03,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568021421] [2022-11-25 17:08:03,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:08:03,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 17:08:03,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:03,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 17:08:03,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:08:03,739 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 13 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:08:03,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:03,910 INFO L93 Difference]: Finished difference Result 84 states and 103 transitions. [2022-11-25 17:08:03,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:08:03,911 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 31 [2022-11-25 17:08:03,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:03,912 INFO L225 Difference]: With dead ends: 84 [2022-11-25 17:08:03,912 INFO L226 Difference]: Without dead ends: 83 [2022-11-25 17:08:03,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:08:03,914 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 43 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:03,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 245 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:08:03,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-25 17:08:03,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 62. [2022-11-25 17:08:03,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 52 states have (on average 1.1730769230769231) internal successors, (61), 50 states have internal predecessors, (61), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 10 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-25 17:08:03,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions. [2022-11-25 17:08:03,924 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 31 [2022-11-25 17:08:03,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:03,924 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 79 transitions. [2022-11-25 17:08:03,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:08:03,925 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2022-11-25 17:08:03,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-25 17:08:03,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:03,926 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:03,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:04,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-25 17:08:04,131 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:08:04,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:04,132 INFO L85 PathProgramCache]: Analyzing trace with hash -623004543, now seen corresponding path program 1 times [2022-11-25 17:08:04,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:04,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610146284] [2022-11-25 17:08:04,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:04,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:04,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:08:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:04,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:08:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:04,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-25 17:08:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:04,253 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 17:08:04,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:04,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610146284] [2022-11-25 17:08:04,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610146284] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:08:04,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960886707] [2022-11-25 17:08:04,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:04,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:04,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:04,255 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:04,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:08:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:04,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:08:04,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:04,416 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 17:08:04,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:08:04,510 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 17:08:04,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960886707] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:08:04,510 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:08:04,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-11-25 17:08:04,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981352044] [2022-11-25 17:08:04,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:08:04,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 17:08:04,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:04,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 17:08:04,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:08:04,513 INFO L87 Difference]: Start difference. First operand 62 states and 79 transitions. Second operand has 15 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:08:04,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:04,731 INFO L93 Difference]: Finished difference Result 68 states and 86 transitions. [2022-11-25 17:08:04,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 17:08:04,731 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 34 [2022-11-25 17:08:04,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:04,732 INFO L225 Difference]: With dead ends: 68 [2022-11-25 17:08:04,732 INFO L226 Difference]: Without dead ends: 55 [2022-11-25 17:08:04,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2022-11-25 17:08:04,734 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 33 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:04,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 154 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:08:04,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-25 17:08:04,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 45. [2022-11-25 17:08:04,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 37 states have (on average 1.054054054054054) internal successors, (39), 37 states have internal predecessors, (39), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:08:04,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-11-25 17:08:04,741 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 34 [2022-11-25 17:08:04,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:04,741 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-11-25 17:08:04,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:08:04,741 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-11-25 17:08:04,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-25 17:08:04,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:04,742 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:04,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:04,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:04,949 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:08:04,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:04,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1169010951, now seen corresponding path program 2 times [2022-11-25 17:08:04,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:04,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554794594] [2022-11-25 17:08:04,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:04,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:05,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:08:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:05,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:08:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:05,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-25 17:08:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:05,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:08:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:05,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-25 17:08:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:05,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-25 17:08:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:05,320 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-25 17:08:05,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:05,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554794594] [2022-11-25 17:08:05,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554794594] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:08:05,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473182961] [2022-11-25 17:08:05,321 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:08:05,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:05,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:05,323 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:05,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:08:05,478 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:08:05,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:08:05,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 17:08:05,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:05,594 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-25 17:08:05,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:08:05,858 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-25 17:08:05,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473182961] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:08:05,858 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:08:05,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 24 [2022-11-25 17:08:05,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039669204] [2022-11-25 17:08:05,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:08:05,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-25 17:08:05,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:05,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-25 17:08:05,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2022-11-25 17:08:05,865 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 25 states, 24 states have (on average 3.25) internal successors, (78), 24 states have internal predecessors, (78), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 17:08:06,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:06,215 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2022-11-25 17:08:06,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 17:08:06,216 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.25) internal successors, (78), 24 states have internal predecessors, (78), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 64 [2022-11-25 17:08:06,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:06,217 INFO L225 Difference]: With dead ends: 90 [2022-11-25 17:08:06,217 INFO L226 Difference]: Without dead ends: 89 [2022-11-25 17:08:06,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=856, Unknown=0, NotChecked=0, Total=1190 [2022-11-25 17:08:06,219 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 47 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:06,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 203 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:08:06,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-11-25 17:08:06,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2022-11-25 17:08:06,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 73 states have (on average 1.0273972602739727) internal successors, (75), 73 states have internal predecessors, (75), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 17:08:06,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2022-11-25 17:08:06,230 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 64 [2022-11-25 17:08:06,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:06,231 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2022-11-25 17:08:06,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.25) internal successors, (78), 24 states have internal predecessors, (78), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 17:08:06,231 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2022-11-25 17:08:06,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-25 17:08:06,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:06,233 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:06,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:06,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:06,439 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:08:06,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:06,440 INFO L85 PathProgramCache]: Analyzing trace with hash 735614119, now seen corresponding path program 3 times [2022-11-25 17:08:06,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:06,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557205139] [2022-11-25 17:08:06,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:06,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:07,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:08:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:07,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:08:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:07,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-25 17:08:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:07,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:08:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:07,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-25 17:08:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:07,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-25 17:08:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:07,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-25 17:08:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:07,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 17:08:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:07,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:08:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:07,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:08:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:07,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:08:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:07,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-25 17:08:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:07,414 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 321 proven. 64 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-11-25 17:08:07,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:07,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557205139] [2022-11-25 17:08:07,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557205139] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:08:07,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339456167] [2022-11-25 17:08:07,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:08:07,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:07,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:07,416 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:07,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:08:07,566 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 17:08:07,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:08:07,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:08:07,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:07,745 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-11-25 17:08:07,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:08:07,995 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-11-25 17:08:07,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339456167] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:08:07,996 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:08:07,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 4, 4] total 30 [2022-11-25 17:08:07,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559136635] [2022-11-25 17:08:07,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:08:07,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-25 17:08:07,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:07,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-25 17:08:07,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=721, Unknown=0, NotChecked=0, Total=870 [2022-11-25 17:08:07,999 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 29 states have internal predecessors, (103), 15 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-11-25 17:08:09,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:09,064 INFO L93 Difference]: Finished difference Result 94 states and 116 transitions. [2022-11-25 17:08:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-25 17:08:09,065 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 29 states have internal predecessors, (103), 15 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 130 [2022-11-25 17:08:09,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:09,066 INFO L225 Difference]: With dead ends: 94 [2022-11-25 17:08:09,066 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 17:08:09,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=744, Invalid=2562, Unknown=0, NotChecked=0, Total=3306 [2022-11-25 17:08:09,069 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 27 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:09,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 415 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:08:09,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 17:08:09,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 17:08:09,071 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) [2022-11-25 17:08:09,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 17:08:09,071 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 130 [2022-11-25 17:08:09,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:09,071 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:08:09,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 29 states have internal predecessors, (103), 15 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-11-25 17:08:09,072 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 17:08:09,072 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 17:08:09,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-25 17:08:09,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-25 17:08:09,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-25 17:08:09,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-25 17:08:09,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-25 17:08:09,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-25 17:08:09,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:09,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 17:08:09,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 17:08:09,817 INFO L895 garLoopResultBuilder]: At program point ldv_mallocENTRY(lines 525 531) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-11-25 17:08:09,817 INFO L899 garLoopResultBuilder]: For program point L526(lines 526 530) no Hoare annotation was computed. [2022-11-25 17:08:09,818 INFO L899 garLoopResultBuilder]: For program point ldv_mallocFINAL(lines 525 531) no Hoare annotation was computed. [2022-11-25 17:08:09,818 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 525 531) no Hoare annotation was computed. [2022-11-25 17:08:09,818 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed. [2022-11-25 17:08:09,818 INFO L899 garLoopResultBuilder]: For program point L766(line 766) no Hoare annotation was computed. [2022-11-25 17:08:09,818 INFO L895 garLoopResultBuilder]: At program point L762(line 762) the Hoare annotation is: (and (<= |ULTIMATE.start_entry_point_~len~0#1| 10) (<= 10 |ULTIMATE.start_entry_point_~len~0#1|)) [2022-11-25 17:08:09,818 INFO L899 garLoopResultBuilder]: For program point L762-1(line 762) no Hoare annotation was computed. [2022-11-25 17:08:09,818 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 17:08:09,819 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 767) no Hoare annotation was computed. [2022-11-25 17:08:09,819 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 17:08:09,819 INFO L899 garLoopResultBuilder]: For program point L767-2(lines 767 771) no Hoare annotation was computed. [2022-11-25 17:08:09,819 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed. [2022-11-25 17:08:09,819 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 17:08:09,819 INFO L899 garLoopResultBuilder]: For program point L767-3(line 767) no Hoare annotation was computed. [2022-11-25 17:08:09,819 INFO L899 garLoopResultBuilder]: For program point L767-4(line 767) no Hoare annotation was computed. [2022-11-25 17:08:09,819 INFO L895 garLoopResultBuilder]: At program point L767-5(lines 767 771) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_entry_point_~len~0#1| 10)) (.cse1 (<= 10 |ULTIMATE.start_entry_point_~len~0#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_entry_point_~i~0#1| 0)) (and .cse0 (< |ULTIMATE.start_entry_point_~i~0#1| 2147483647) .cse1 (<= 1 |ULTIMATE.start_entry_point_~i~0#1|)))) [2022-11-25 17:08:09,820 INFO L895 garLoopResultBuilder]: At program point L772(lines 760 777) the Hoare annotation is: (let ((.cse0 (<= 10 |ULTIMATE.start_entry_point_~len~0#1|))) (or (and (<= |ULTIMATE.start_entry_point_~i~0#1| 2147483647) .cse0 (<= 1 |ULTIMATE.start_entry_point_~i~0#1|)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 0)))) [2022-11-25 17:08:09,820 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 767) no Hoare annotation was computed. [2022-11-25 17:08:09,820 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 17:08:09,820 INFO L895 garLoopResultBuilder]: At program point L768(line 768) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_entry_point_~len~0#1| 10)) (.cse1 (<= 10 |ULTIMATE.start_entry_point_~len~0#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_entry_point_~i~0#1| 0)) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_entry_point_~i~0#1|) (<= |ULTIMATE.start_entry_point_~i~0#1| 9)))) [2022-11-25 17:08:09,820 INFO L899 garLoopResultBuilder]: For program point L768-1(line 768) no Hoare annotation was computed. [2022-11-25 17:08:09,820 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed. [2022-11-25 17:08:09,821 INFO L899 garLoopResultBuilder]: For program point L773(line 773) no Hoare annotation was computed. [2022-11-25 17:08:09,821 INFO L899 garLoopResultBuilder]: For program point L773-3(lines 773 775) no Hoare annotation was computed. [2022-11-25 17:08:09,821 INFO L899 garLoopResultBuilder]: For program point L769(line 769) no Hoare annotation was computed. [2022-11-25 17:08:09,821 INFO L899 garLoopResultBuilder]: For program point L773-4(line 773) no Hoare annotation was computed. [2022-11-25 17:08:09,821 INFO L899 garLoopResultBuilder]: For program point L773-5(line 773) no Hoare annotation was computed. [2022-11-25 17:08:09,821 INFO L895 garLoopResultBuilder]: At program point L773-6(lines 773 775) the Hoare annotation is: (and (< |ULTIMATE.start_entry_point_~j~0#1| 2147483649) (<= 0 |ULTIMATE.start_entry_point_~i~0#1|) (<= |ULTIMATE.start_entry_point_~i~0#1| 2147483647) (<= 10 |ULTIMATE.start_entry_point_~len~0#1|)) [2022-11-25 17:08:09,821 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed. [2022-11-25 17:08:09,821 INFO L895 garLoopResultBuilder]: At program point L773-7(lines 760 777) the Hoare annotation is: (<= 10 |ULTIMATE.start_entry_point_~len~0#1|) [2022-11-25 17:08:09,821 INFO L899 garLoopResultBuilder]: For program point L778(lines 778 780) no Hoare annotation was computed. [2022-11-25 17:08:09,825 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:09,828 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:08:09,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:08:09 BoogieIcfgContainer [2022-11-25 17:08:09,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:08:09,842 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:08:09,843 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:08:09,843 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:08:09,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:07:59" (3/4) ... [2022-11-25 17:08:09,847 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:08:09,854 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2022-11-25 17:08:09,858 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-25 17:08:09,859 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 17:08:09,859 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:08:09,895 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:08:09,895 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:08:09,896 INFO L158 Benchmark]: Toolchain (without parser) took 12037.15ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 152.0MB in the beginning and 137.6MB in the end (delta: 14.4MB). Peak memory consumption was 97.7MB. Max. memory is 16.1GB. [2022-11-25 17:08:09,896 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 94.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:08:09,896 INFO L158 Benchmark]: CACSL2BoogieTranslator took 744.77ms. Allocated memory is still 180.4MB. Free memory was 152.0MB in the beginning and 130.5MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 17:08:09,897 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.40ms. Allocated memory is still 180.4MB. Free memory was 130.5MB in the beginning and 128.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:08:09,897 INFO L158 Benchmark]: Boogie Preprocessor took 31.24ms. Allocated memory is still 180.4MB. Free memory was 128.2MB in the beginning and 126.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:08:09,898 INFO L158 Benchmark]: RCFGBuilder took 489.49ms. Allocated memory is still 180.4MB. Free memory was 126.8MB in the beginning and 114.7MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:08:09,898 INFO L158 Benchmark]: TraceAbstraction took 10653.71ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 114.2MB in the beginning and 140.7MB in the end (delta: -26.5MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. [2022-11-25 17:08:09,899 INFO L158 Benchmark]: Witness Printer took 52.50ms. Allocated memory is still 262.1MB. Free memory was 140.7MB in the beginning and 137.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:08:09,901 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 94.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 744.77ms. Allocated memory is still 180.4MB. Free memory was 152.0MB in the beginning and 130.5MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.40ms. Allocated memory is still 180.4MB. Free memory was 130.5MB in the beginning and 128.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.24ms. Allocated memory is still 180.4MB. Free memory was 128.2MB in the beginning and 126.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 489.49ms. Allocated memory is still 180.4MB. Free memory was 126.8MB in the beginning and 114.7MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 10653.71ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 114.2MB in the beginning and 140.7MB in the end (delta: -26.5MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. * Witness Printer took 52.50ms. Allocated memory is still 262.1MB. Free memory was 140.7MB in the beginning and 137.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 10.6s, OverallIterations: 12, TraceHistogramMax: 12, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 384 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 377 mSDsluCounter, 1786 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1420 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1443 IncrementalHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 366 mSDtfsCounter, 1443 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 820 GetRequests, 648 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1069 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=11, InterpolantAutomatonStates: 125, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 99 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 18 PreInvPairs, 47 NumberOfFragments, 96 HoareAnnotationTreeSize, 18 FomulaSimplifications, 3455 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1242 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 762 NumberOfCodeBlocks, 655 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1024 ConstructedInterpolants, 0 QuantifiedInterpolants, 2582 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1128 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 24 InterpolantComputations, 7 PerfectInterpolantSequences, 2062/2494 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 6 specifications checked. All of them hold - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: 10 <= len - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: ((i <= 2147483647 && 10 <= len) && 1 <= i) || (10 <= len && i == 0) - InvariantResult [Line: 767]: Loop Invariant Derived loop invariant: ((len <= 10 && 10 <= len) && i == 0) || (((len <= 10 && i < 2147483647) && 10 <= len) && 1 <= i) - InvariantResult [Line: 773]: Loop Invariant Derived loop invariant: ((j < 2147483649 && 0 <= i) && i <= 2147483647) && 10 <= len RESULT: Ultimate proved your program to be correct! [2022-11-25 17:08:09,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4588f38f-b6c9-4f43-8672-babdd94acc8c/bin/uautomizer-ZsLfNo2U6R/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