./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark01_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark01_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN --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 1b503f9744330c40db60063d7713649b00b515fae7df517a0a6da071e866822e --- 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-6b4ec56 [2022-11-20 09:36:00,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:36:00,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:36:00,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:36:00,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:36:00,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:36:00,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:36:00,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:36:00,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:36:00,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:36:00,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:36:00,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:36:00,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:36:00,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:36:00,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:36:00,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:36:00,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:36:00,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:36:00,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:36:00,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:36:00,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:36:00,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:36:00,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:36:00,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:36:00,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:36:00,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:36:00,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:36:00,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:36:00,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:36:00,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:36:00,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:36:00,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:36:00,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:36:00,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:36:00,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:36:00,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:36:00,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:36:00,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:36:00,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:36:00,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:36:00,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:36:00,958 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 09:36:01,012 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:36:01,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:36:01,013 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:36:01,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:36:01,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:36:01,015 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:36:01,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:36:01,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:36:01,016 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:36:01,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:36:01,018 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:36:01,018 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:36:01,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:36:01,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:36:01,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:36:01,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:36:01,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:36:01,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:36:01,020 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 09:36:01,020 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:36:01,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:36:01,020 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:36:01,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:36:01,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:36:01,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:36:01,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:36:01,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:36:01,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:36:01,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:36:01,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:36:01,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:36:01,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:36:01,024 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:36:01,025 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:36:01,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:36:01,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b503f9744330c40db60063d7713649b00b515fae7df517a0a6da071e866822e [2022-11-20 09:36:01,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:36:01,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:36:01,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:36:01,484 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:36:01,485 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:36:01,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/loop-zilu/benchmark01_conjunctive.i [2022-11-20 09:36:04,943 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:36:05,256 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:36:05,257 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/sv-benchmarks/c/loop-zilu/benchmark01_conjunctive.i [2022-11-20 09:36:05,268 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/data/8f8256a21/306acf3b11304702bf6919b37e5fa8fa/FLAG5a8d06678 [2022-11-20 09:36:05,320 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/data/8f8256a21/306acf3b11304702bf6919b37e5fa8fa [2022-11-20 09:36:05,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:36:05,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:36:05,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:36:05,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:36:05,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:36:05,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:36:05" (1/1) ... [2022-11-20 09:36:05,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56362c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:05, skipping insertion in model container [2022-11-20 09:36:05,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:36:05" (1/1) ... [2022-11-20 09:36:05,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:36:05,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:36:05,612 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/sv-benchmarks/c/loop-zilu/benchmark01_conjunctive.i[873,886] [2022-11-20 09:36:05,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:36:05,636 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:36:05,652 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/sv-benchmarks/c/loop-zilu/benchmark01_conjunctive.i[873,886] [2022-11-20 09:36:05,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:36:05,672 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:36:05,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:05 WrapperNode [2022-11-20 09:36:05,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:36:05,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:36:05,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:36:05,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:36:05,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:05" (1/1) ... [2022-11-20 09:36:05,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:05" (1/1) ... [2022-11-20 09:36:05,714 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-11-20 09:36:05,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:36:05,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:36:05,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:36:05,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:36:05,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:05" (1/1) ... [2022-11-20 09:36:05,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:05" (1/1) ... [2022-11-20 09:36:05,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:05" (1/1) ... [2022-11-20 09:36:05,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:05" (1/1) ... [2022-11-20 09:36:05,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:05" (1/1) ... [2022-11-20 09:36:05,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:05" (1/1) ... [2022-11-20 09:36:05,751 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:05" (1/1) ... [2022-11-20 09:36:05,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:05" (1/1) ... [2022-11-20 09:36:05,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:36:05,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:36:05,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:36:05,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:36:05,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:05" (1/1) ... [2022-11-20 09:36:05,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:36:05,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:36:05,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:36:05,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:36:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:36:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:36:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:36:05,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:36:05,955 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:36:05,958 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:36:06,159 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:36:06,166 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:36:06,166 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:36:06,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:36:06 BoogieIcfgContainer [2022-11-20 09:36:06,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:36:06,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:36:06,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:36:06,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:36:06,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:36:05" (1/3) ... [2022-11-20 09:36:06,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21579d36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:36:06, skipping insertion in model container [2022-11-20 09:36:06,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:05" (2/3) ... [2022-11-20 09:36:06,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21579d36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:36:06, skipping insertion in model container [2022-11-20 09:36:06,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:36:06" (3/3) ... [2022-11-20 09:36:06,179 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark01_conjunctive.i [2022-11-20 09:36:06,208 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:36:06,209 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 09:36:06,314 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:36:06,329 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;@3783578a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:36:06,329 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 09:36:06,336 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:06,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 09:36:06,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:36:06,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 09:36:06,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 09:36:06,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:36:06,362 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-11-20 09:36:06,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:36:06,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498553461] [2022-11-20 09:36:06,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:36:06,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:36:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:36:06,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:06,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:36:06,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498553461] [2022-11-20 09:36:06,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498553461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:36:06,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:36:06,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:36:06,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036024088] [2022-11-20 09:36:06,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:36:06,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:36:06,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:36:06,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:36:06,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:36:06,739 INFO L87 Difference]: Start difference. First operand has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-20 09:36:06,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:36:06,786 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2022-11-20 09:36:06,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:36:06,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-20 09:36:06,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:36:06,798 INFO L225 Difference]: With dead ends: 30 [2022-11-20 09:36:06,799 INFO L226 Difference]: Without dead ends: 11 [2022-11-20 09:36:06,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:36:06,806 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:36:06,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 20 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:36:06,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-20 09:36:06,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2022-11-20 09:36:06,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 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) [2022-11-20 09:36:06,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-11-20 09:36:06,847 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2022-11-20 09:36:06,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:36:06,848 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-11-20 09:36:06,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-20 09:36:06,848 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-11-20 09:36:06,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 09:36:06,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:36:06,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 09:36:06,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:36:06,850 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 09:36:06,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:36:06,851 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2022-11-20 09:36:06,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:36:06,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040013906] [2022-11-20 09:36:06,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:36:06,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:36:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:36:06,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:06,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:36:06,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040013906] [2022-11-20 09:36:06,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040013906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:36:06,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:36:06,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:36:06,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173611197] [2022-11-20 09:36:06,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:36:06,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:36:06,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:36:06,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:36:06,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:36:06,915 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:06,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:36:06,946 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2022-11-20 09:36:06,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:36:06,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-20 09:36:06,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:36:06,948 INFO L225 Difference]: With dead ends: 10 [2022-11-20 09:36:06,948 INFO L226 Difference]: Without dead ends: 9 [2022-11-20 09:36:06,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:36:06,951 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:36:06,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:36:06,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-20 09:36:06,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-20 09:36:06,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:06,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-20 09:36:06,956 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2022-11-20 09:36:06,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:36:06,957 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-20 09:36:06,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:06,957 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-20 09:36:06,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 09:36:06,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:36:06,958 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-20 09:36:06,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:36:06,959 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 09:36:06,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:36:06,960 INFO L85 PathProgramCache]: Analyzing trace with hash 183289263, now seen corresponding path program 1 times [2022-11-20 09:36:06,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:36:06,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109784928] [2022-11-20 09:36:06,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:36:06,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:36:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:36:07,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:07,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:36:07,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109784928] [2022-11-20 09:36:07,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109784928] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:36:07,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592093701] [2022-11-20 09:36:07,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:36:07,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:36:07,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:36:07,060 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:36:07,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 09:36:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:36:07,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 09:36:07,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:36:07,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:07,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:36:07,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:07,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592093701] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:36:07,379 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:36:07,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2022-11-20 09:36:07,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733392907] [2022-11-20 09:36:07,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:36:07,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 09:36:07,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:36:07,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 09:36:07,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2022-11-20 09:36:07,383 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:07,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:36:07,467 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-11-20 09:36:07,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:36:07,468 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-20 09:36:07,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:36:07,469 INFO L225 Difference]: With dead ends: 19 [2022-11-20 09:36:07,469 INFO L226 Difference]: Without dead ends: 18 [2022-11-20 09:36:07,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=38, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:36:07,471 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:36:07,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:36:07,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-20 09:36:07,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-20 09:36:07,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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) [2022-11-20 09:36:07,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-20 09:36:07,479 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2022-11-20 09:36:07,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:36:07,479 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-20 09:36:07,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:07,480 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-20 09:36:07,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 09:36:07,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:36:07,481 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-20 09:36:07,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:36:07,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:36:07,688 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 09:36:07,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:36:07,688 INFO L85 PathProgramCache]: Analyzing trace with hash -473619163, now seen corresponding path program 2 times [2022-11-20 09:36:07,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:36:07,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302669119] [2022-11-20 09:36:07,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:36:07,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:36:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:36:08,131 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:08,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:36:08,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302669119] [2022-11-20 09:36:08,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302669119] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:36:08,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505765523] [2022-11-20 09:36:08,133 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 09:36:08,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:36:08,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:36:08,141 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:36:08,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 09:36:08,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 09:36:08,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:36:08,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 09:36:08,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:36:08,523 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:08,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:36:08,705 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:08,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505765523] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:36:08,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:36:08,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-11-20 09:36:08,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109611162] [2022-11-20 09:36:08,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:36:08,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-20 09:36:08,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:36:08,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-20 09:36:08,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2022-11-20 09:36:08,709 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 17 states, 16 states have (on average 2.9375) internal successors, (47), 17 states have internal predecessors, (47), 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) [2022-11-20 09:36:08,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:36:08,856 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2022-11-20 09:36:08,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 09:36:08,857 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.9375) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-20 09:36:08,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:36:08,859 INFO L225 Difference]: With dead ends: 37 [2022-11-20 09:36:08,861 INFO L226 Difference]: Without dead ends: 36 [2022-11-20 09:36:08,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=167, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:36:08,865 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:36:08,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 22 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:36:08,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-20 09:36:08,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-20 09:36:08,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 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) [2022-11-20 09:36:08,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2022-11-20 09:36:08,888 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 17 [2022-11-20 09:36:08,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:36:08,889 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2022-11-20 09:36:08,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.9375) internal successors, (47), 17 states have internal predecessors, (47), 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) [2022-11-20 09:36:08,889 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2022-11-20 09:36:08,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-20 09:36:08,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:36:08,891 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1] [2022-11-20 09:36:08,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:36:09,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:36:09,092 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 09:36:09,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:36:09,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1301710747, now seen corresponding path program 3 times [2022-11-20 09:36:09,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:36:09,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778234075] [2022-11-20 09:36:09,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:36:09,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:36:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:36:09,695 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:09,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:36:09,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778234075] [2022-11-20 09:36:09,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778234075] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:36:09,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116506653] [2022-11-20 09:36:09,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 09:36:09,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:36:09,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:36:09,713 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:36:09,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 09:36:09,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-20 09:36:09,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:36:09,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 09:36:09,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:36:10,294 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:10,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:36:10,752 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:10,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116506653] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:36:10,753 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:36:10,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2022-11-20 09:36:10,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544468750] [2022-11-20 09:36:10,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:36:10,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-20 09:36:10,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:36:10,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-20 09:36:10,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=530, Invalid=660, Unknown=0, NotChecked=0, Total=1190 [2022-11-20 09:36:10,758 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 35 states, 34 states have (on average 2.9705882352941178) internal successors, (101), 35 states have internal predecessors, (101), 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) [2022-11-20 09:36:10,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:36:10,928 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2022-11-20 09:36:10,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 09:36:10,929 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.9705882352941178) internal successors, (101), 35 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-20 09:36:10,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:36:10,936 INFO L225 Difference]: With dead ends: 73 [2022-11-20 09:36:10,937 INFO L226 Difference]: Without dead ends: 72 [2022-11-20 09:36:10,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=565, Invalid=695, Unknown=0, NotChecked=0, Total=1260 [2022-11-20 09:36:10,945 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 22 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:36:10,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 38 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:36:10,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-20 09:36:10,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-11-20 09:36:10,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.0140845070422535) internal successors, (72), 71 states have internal predecessors, (72), 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) [2022-11-20 09:36:10,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2022-11-20 09:36:10,980 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 35 [2022-11-20 09:36:10,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:36:10,981 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2022-11-20 09:36:10,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.9705882352941178) internal successors, (101), 35 states have internal predecessors, (101), 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) [2022-11-20 09:36:10,982 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2022-11-20 09:36:10,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-20 09:36:10,987 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:36:10,987 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 1, 1, 1, 1] [2022-11-20 09:36:10,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:36:11,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:36:11,194 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 09:36:11,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:36:11,195 INFO L85 PathProgramCache]: Analyzing trace with hash -394055963, now seen corresponding path program 4 times [2022-11-20 09:36:11,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:36:11,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196613324] [2022-11-20 09:36:11,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:36:11,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:36:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:36:12,660 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:12,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:36:12,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196613324] [2022-11-20 09:36:12,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196613324] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:36:12,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351081843] [2022-11-20 09:36:12,662 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 09:36:12,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:36:12,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:36:12,667 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:36:12,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 09:36:12,774 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 09:36:12,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:36:12,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-20 09:36:12,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:36:13,708 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:13,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:36:14,722 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:14,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351081843] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:36:14,723 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:36:14,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 70 [2022-11-20 09:36:14,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309765592] [2022-11-20 09:36:14,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:36:14,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-11-20 09:36:14,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:36:14,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-11-20 09:36:14,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2090, Invalid=2880, Unknown=0, NotChecked=0, Total=4970 [2022-11-20 09:36:14,731 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand has 71 states, 70 states have (on average 2.9857142857142858) internal successors, (209), 71 states have internal predecessors, (209), 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) [2022-11-20 09:36:14,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:36:14,972 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2022-11-20 09:36:14,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-20 09:36:14,973 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 2.9857142857142858) internal successors, (209), 71 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-11-20 09:36:14,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:36:14,975 INFO L225 Difference]: With dead ends: 97 [2022-11-20 09:36:14,975 INFO L226 Difference]: Without dead ends: 96 [2022-11-20 09:36:14,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2616 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2161, Invalid=2951, Unknown=0, NotChecked=0, Total=5112 [2022-11-20 09:36:14,979 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 30 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:36:14,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 54 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:36:14,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-20 09:36:14,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-11-20 09:36:14,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.0105263157894737) internal successors, (96), 95 states have internal predecessors, (96), 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) [2022-11-20 09:36:14,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2022-11-20 09:36:14,995 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 71 [2022-11-20 09:36:14,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:36:14,996 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2022-11-20 09:36:14,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 2.9857142857142858) internal successors, (209), 71 states have internal predecessors, (209), 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) [2022-11-20 09:36:14,997 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2022-11-20 09:36:14,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-20 09:36:14,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:36:14,999 INFO L195 NwaCegarLoop]: trace histogram [31, 30, 30, 1, 1, 1, 1] [2022-11-20 09:36:15,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:36:15,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:36:15,206 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 09:36:15,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:36:15,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1545421339, now seen corresponding path program 5 times [2022-11-20 09:36:15,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:36:15,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253437143] [2022-11-20 09:36:15,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:36:15,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:36:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:36:15,266 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:36:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:36:15,339 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:36:15,340 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 09:36:15,341 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-20 09:36:15,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-20 09:36:15,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 09:36:15,349 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2022-11-20 09:36:15,354 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:36:15,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:36:15 BoogieIcfgContainer [2022-11-20 09:36:15,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:36:15,414 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:36:15,414 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:36:15,414 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:36:15,415 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:36:06" (3/4) ... [2022-11-20 09:36:15,417 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 09:36:15,509 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 09:36:15,509 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:36:15,510 INFO L158 Benchmark]: Toolchain (without parser) took 10184.58ms. Allocated memory was 188.7MB in the beginning and 232.8MB in the end (delta: 44.0MB). Free memory was 161.1MB in the beginning and 151.6MB in the end (delta: 9.5MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2022-11-20 09:36:15,510 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 188.7MB. Free memory is still 156.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:36:15,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.59ms. Allocated memory is still 188.7MB. Free memory was 161.1MB in the beginning and 151.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 09:36:15,511 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.34ms. Allocated memory is still 188.7MB. Free memory was 151.2MB in the beginning and 149.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:36:15,517 INFO L158 Benchmark]: Boogie Preprocessor took 47.31ms. Allocated memory is still 188.7MB. Free memory was 149.8MB in the beginning and 148.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:36:15,517 INFO L158 Benchmark]: RCFGBuilder took 405.34ms. Allocated memory is still 188.7MB. Free memory was 148.7MB in the beginning and 139.0MB in the end (delta: 9.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 09:36:15,518 INFO L158 Benchmark]: TraceAbstraction took 9242.02ms. Allocated memory was 188.7MB in the beginning and 232.8MB in the end (delta: 44.0MB). Free memory was 138.3MB in the beginning and 155.8MB in the end (delta: -17.5MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2022-11-20 09:36:15,520 INFO L158 Benchmark]: Witness Printer took 95.31ms. Allocated memory is still 232.8MB. Free memory was 154.7MB in the beginning and 151.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 09:36:15,522 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 188.7MB. Free memory is still 156.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.59ms. Allocated memory is still 188.7MB. Free memory was 161.1MB in the beginning and 151.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.34ms. Allocated memory is still 188.7MB. Free memory was 151.2MB in the beginning and 149.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.31ms. Allocated memory is still 188.7MB. Free memory was 149.8MB in the beginning and 148.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 405.34ms. Allocated memory is still 188.7MB. Free memory was 148.7MB in the beginning and 139.0MB in the end (delta: 9.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9242.02ms. Allocated memory was 188.7MB in the beginning and 232.8MB in the end (delta: 44.0MB). Free memory was 138.3MB in the beginning and 155.8MB in the end (delta: -17.5MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. * Witness Printer took 95.31ms. Allocated memory is still 232.8MB. Free memory was 154.7MB in the beginning and 151.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(x==1 && y==1)) VAL [x=1, y=1] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=2, y=2] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=4, y=4] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=8, y=8] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=16, y=16] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=32, y=32] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=64, y=64] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=128, y=128] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=256, y=256] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=512, y=512] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=1024, y=1024] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=2048, y=2048] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=4096, y=4096] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=8192, y=8192] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=16384, y=16384] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=32768, y=32768] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=65536, y=65536] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=131072, y=131072] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=262144, y=262144] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=524288, y=524288] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=1048576, y=1048576] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=2097152, y=2097152] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=4194304, y=4194304] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=8388608, y=8388608] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=16777216, y=16777216] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=33554432, y=33554432] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=67108864, y=67108864] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=134217728, y=134217728] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=268435456, y=268435456] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=536870912, y=536870912] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] EXPR x+y [L24] x=x+y [L25] y=x VAL [x=1073741824, y=1073741824] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] x+y VAL [x=1073741824, y=1073741824] - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 7, TraceHistogramMax: 31, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75 mSDsluCounter, 152 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 115 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 232 IncrementalHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 37 mSDtfsCounter, 232 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 307 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3192 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=6, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 368 NumberOfCodeBlocks, 368 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 390 ConstructedInterpolants, 0 QuantifiedInterpolants, 2520 SizeOfPredicates, 8 NumberOfNonLiveVariables, 383 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2760 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-20 09:36:15,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff464a7-177a-4864-b5cf-6f33f9cf355c/bin/uautomizer-ug76WZFUDN/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)