./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/GCD-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/GCD-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5f52b905489768d11946f99b46b2e235c97efbb56a51bc32b8b274637f7dd5d8 --- 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-8393723 [2022-11-18 20:39:04,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:39:04,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:39:04,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:39:04,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:39:04,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:39:04,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:39:04,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:39:04,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:39:04,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:39:04,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:39:04,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:39:04,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:39:04,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:39:04,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:39:04,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:39:04,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:39:04,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:39:04,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:39:04,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:39:04,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:39:04,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:39:04,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:39:04,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:39:04,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:39:04,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:39:04,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:39:04,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:39:04,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:39:04,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:39:04,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:39:04,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:39:04,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:39:04,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:39:04,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:39:04,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:39:04,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:39:04,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:39:04,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:39:04,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:39:04,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:39:04,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-18 20:39:04,927 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:39:04,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:39:04,929 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:39:04,929 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:39:04,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:39:04,931 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:39:04,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:39:04,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:39:04,933 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:39:04,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:39:04,934 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:39:04,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:39:04,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:39:04,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:39:04,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:39:04,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:39:04,936 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:39:04,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:39:04,937 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:39:04,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:39:04,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:39:04,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:39:04,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:39:04,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:39:04,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:39:04,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:39:04,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:39:04,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:39:04,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:39:04,942 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:39:04,942 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:39:04,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:39:04,943 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_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f52b905489768d11946f99b46b2e235c97efbb56a51bc32b8b274637f7dd5d8 [2022-11-18 20:39:05,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:39:05,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:39:05,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:39:05,320 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:39:05,321 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:39:05,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-restricted-15/GCD-1.c [2022-11-18 20:39:05,404 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/data/fc40943ed/371bbb6a55f84c7dbf8106e7c1343add/FLAG961b264af [2022-11-18 20:39:06,064 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:39:06,065 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/sv-benchmarks/c/termination-restricted-15/GCD-1.c [2022-11-18 20:39:06,075 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/data/fc40943ed/371bbb6a55f84c7dbf8106e7c1343add/FLAG961b264af [2022-11-18 20:39:06,422 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/data/fc40943ed/371bbb6a55f84c7dbf8106e7c1343add [2022-11-18 20:39:06,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:39:06,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:39:06,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:39:06,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:39:06,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:39:06,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc14dde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06, skipping insertion in model container [2022-11-18 20:39:06,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:39:06,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:39:06,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:39:06,766 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:39:06,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:39:06,820 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:39:06,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06 WrapperNode [2022-11-18 20:39:06,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:39:06,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:39:06,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:39:06,825 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:39:06,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,864 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2022-11-18 20:39:06,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:39:06,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:39:06,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:39:06,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:39:06,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,895 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:39:06,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:39:06,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:39:06,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:39:06,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:39:06,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:39:06,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:39:06,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:39:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:39:07,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:39:07,099 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:39:07,101 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:39:07,237 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:39:07,245 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:39:07,245 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:39:07,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:39:07 BoogieIcfgContainer [2022-11-18 20:39:07,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:39:07,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:39:07,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:39:07,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:39:07,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:39:06" (1/3) ... [2022-11-18 20:39:07,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a5dfe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:39:07, skipping insertion in model container [2022-11-18 20:39:07,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (2/3) ... [2022-11-18 20:39:07,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a5dfe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:39:07, skipping insertion in model container [2022-11-18 20:39:07,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:39:07" (3/3) ... [2022-11-18 20:39:07,261 INFO L112 eAbstractionObserver]: Analyzing ICFG GCD-1.c [2022-11-18 20:39:07,286 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:39:07,287 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:39:07,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:39:07,389 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;@148ba042, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:39:07,389 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 20:39:07,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 14 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) [2022-11-18 20:39:07,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 20:39:07,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:39:07,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:39:07,412 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:39:07,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:39:07,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725166, now seen corresponding path program 1 times [2022-11-18 20:39:07,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:39:07,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868642666] [2022-11-18 20:39:07,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:39:07,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:39:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:39:07,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:39:07,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:39:07,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868642666] [2022-11-18 20:39:07,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868642666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:39:07,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:39:07,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:39:07,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240298763] [2022-11-18 20:39:07,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:39:07,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:39:07,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:39:07,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:39:07,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:39:07,874 INFO L87 Difference]: Start difference. First operand has 15 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 14 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) Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:39:08,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:39:08,221 INFO L93 Difference]: Finished difference Result 53 states and 76 transitions. [2022-11-18 20:39:08,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:39:08,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 20:39:08,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:39:08,235 INFO L225 Difference]: With dead ends: 53 [2022-11-18 20:39:08,235 INFO L226 Difference]: Without dead ends: 32 [2022-11-18 20:39:08,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:39:08,250 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 52 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:39:08,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 32 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:39:08,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-18 20:39:08,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 16. [2022-11-18 20:39:08,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 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) [2022-11-18 20:39:08,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2022-11-18 20:39:08,302 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 22 transitions. Word has length 7 [2022-11-18 20:39:08,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:39:08,303 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 22 transitions. [2022-11-18 20:39:08,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:39:08,304 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2022-11-18 20:39:08,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:39:08,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:39:08,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:39:08,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:39:08,306 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:39:08,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:39:08,307 INFO L85 PathProgramCache]: Analyzing trace with hash 297905362, now seen corresponding path program 1 times [2022-11-18 20:39:08,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:39:08,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119011259] [2022-11-18 20:39:08,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:39:08,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:39:08,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:39:08,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:39:08,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:39:08,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119011259] [2022-11-18 20:39:08,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119011259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:39:08,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:39:08,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:39:08,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090820989] [2022-11-18 20:39:08,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:39:08,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:39:08,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:39:08,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:39:08,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:39:08,360 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:39:08,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:39:08,384 INFO L93 Difference]: Finished difference Result 16 states and 22 transitions. [2022-11-18 20:39:08,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:39:08,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 20:39:08,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:39:08,387 INFO L225 Difference]: With dead ends: 16 [2022-11-18 20:39:08,388 INFO L226 Difference]: Without dead ends: 15 [2022-11-18 20:39:08,388 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 [2022-11-18 20:39:08,390 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:39:08,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 11 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:39:08,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-18 20:39:08,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-18 20:39:08,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:39:08,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2022-11-18 20:39:08,398 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 21 transitions. Word has length 8 [2022-11-18 20:39:08,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:39:08,399 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 21 transitions. [2022-11-18 20:39:08,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:39:08,400 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 21 transitions. [2022-11-18 20:39:08,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 20:39:08,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:39:08,401 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:39:08,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:39:08,402 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:39:08,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:39:08,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1475754028, now seen corresponding path program 1 times [2022-11-18 20:39:08,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:39:08,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614666392] [2022-11-18 20:39:08,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:39:08,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:39:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:39:08,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:39:08,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:39:08,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614666392] [2022-11-18 20:39:08,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614666392] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:39:08,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118119378] [2022-11-18 20:39:08,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:39:08,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:39:08,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:39:08,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:39:08,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:39:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:39:08,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:39:08,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:39:08,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:39:08,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:39:08,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118119378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:39:08,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:39:08,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 20:39:08,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545307445] [2022-11-18 20:39:08,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:39:08,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:39:08,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:39:08,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:39:08,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:39:08,753 INFO L87 Difference]: Start difference. First operand 15 states and 21 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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) [2022-11-18 20:39:08,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:39:08,932 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2022-11-18 20:39:08,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:39:08,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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) Word has length 10 [2022-11-18 20:39:08,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:39:08,934 INFO L225 Difference]: With dead ends: 24 [2022-11-18 20:39:08,934 INFO L226 Difference]: Without dead ends: 23 [2022-11-18 20:39:08,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:39:08,937 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 20 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:39:08,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 16 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:39:08,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-18 20:39:08,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 16. [2022-11-18 20:39:08,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 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) [2022-11-18 20:39:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2022-11-18 20:39:08,957 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 22 transitions. Word has length 10 [2022-11-18 20:39:08,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:39:08,958 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 22 transitions. [2022-11-18 20:39:08,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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) [2022-11-18 20:39:08,959 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2022-11-18 20:39:08,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 20:39:08,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:39:08,960 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:39:08,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:39:09,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:39:09,167 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:39:09,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:39:09,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1512865425, now seen corresponding path program 1 times [2022-11-18 20:39:09,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:39:09,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893077] [2022-11-18 20:39:09,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:39:09,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:39:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:39:09,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:39:09,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:39:09,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893077] [2022-11-18 20:39:09,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893077] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:39:09,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927743943] [2022-11-18 20:39:09,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:39:09,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:39:09,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:39:09,304 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:39:09,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:39:09,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:39:09,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:39:09,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:39:09,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:39:09,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:39:09,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:39:09,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927743943] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:39:09,580 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:39:09,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-18 20:39:09,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430863382] [2022-11-18 20:39:09,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:39:09,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 20:39:09,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:39:09,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 20:39:09,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:39:09,583 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. Second operand has 13 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 13 states have internal predecessors, (23), 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) [2022-11-18 20:39:09,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:39:09,756 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2022-11-18 20:39:09,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:39:09,757 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 13 states have internal predecessors, (23), 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 10 [2022-11-18 20:39:09,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:39:09,758 INFO L225 Difference]: With dead ends: 17 [2022-11-18 20:39:09,758 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:39:09,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:39:09,770 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 38 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:39:09,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 12 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:39:09,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:39:09,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:39:09,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:39:09,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:39:09,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2022-11-18 20:39:09,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:39:09,772 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:39:09,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 13 states have internal predecessors, (23), 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) [2022-11-18 20:39:09,773 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:39:09,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:39:09,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-18 20:39:09,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-18 20:39:09,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:39:09,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:39:09,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:39:10,084 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-18 20:39:10,090 INFO L895 garLoopResultBuilder]: At program point L33(lines 5 34) the Hoare annotation is: (or (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (and (<= |ULTIMATE.start_main_~xtmp~0#1| (+ |ULTIMATE.start_main_~y~0#1| 2147483646)) (<= |ULTIMATE.start_main_~xtmp~0#1| 2147483647))) [2022-11-18 20:39:10,090 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:39:10,090 INFO L895 garLoopResultBuilder]: At program point L23-2(lines 23 25) the Hoare annotation is: (and (not (<= |ULTIMATE.start_main_~y~0#1| 0)) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~xtmp~0#1| 2147483647) (<= |ULTIMATE.start_main_~tmp~0#1| 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2022-11-18 20:39:10,091 INFO L899 garLoopResultBuilder]: For program point L23-3(lines 17 27) no Hoare annotation was computed. [2022-11-18 20:39:10,091 INFO L899 garLoopResultBuilder]: For program point L17(lines 17 27) no Hoare annotation was computed. [2022-11-18 20:39:10,091 INFO L895 garLoopResultBuilder]: At program point L13-2(lines 13 31) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2022-11-18 20:39:10,093 INFO L899 garLoopResultBuilder]: For program point L13-3(lines 13 31) no Hoare annotation was computed. [2022-11-18 20:39:10,093 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:39:10,093 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-18 20:39:10,093 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:39:10,094 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:39:10,101 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-11-18 20:39:10,102 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2022-11-18 20:39:10,102 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 26) no Hoare annotation was computed. [2022-11-18 20:39:10,106 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-18 20:39:10,109 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:39:10,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:39:10 BoogieIcfgContainer [2022-11-18 20:39:10,134 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:39:10,136 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:39:10,137 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:39:10,138 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:39:10,140 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:39:07" (3/4) ... [2022-11-18 20:39:10,144 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:39:10,157 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 20:39:10,163 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 20:39:10,164 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:39:10,197 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:39:10,198 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:39:10,199 INFO L158 Benchmark]: Toolchain (without parser) took 3769.62ms. Allocated memory was 100.7MB in the beginning and 136.3MB in the end (delta: 35.7MB). Free memory was 72.7MB in the beginning and 93.7MB in the end (delta: -21.0MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2022-11-18 20:39:10,199 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 100.7MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:39:10,200 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.73ms. Allocated memory is still 100.7MB. Free memory was 72.7MB in the beginning and 77.8MB in the end (delta: -5.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:39:10,200 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.63ms. Allocated memory is still 100.7MB. Free memory was 77.8MB in the beginning and 76.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:39:10,200 INFO L158 Benchmark]: Boogie Preprocessor took 38.28ms. Allocated memory is still 100.7MB. Free memory was 76.2MB in the beginning and 75.4MB in the end (delta: 815.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:39:10,201 INFO L158 Benchmark]: RCFGBuilder took 343.04ms. Allocated memory is still 100.7MB. Free memory was 75.4MB in the beginning and 66.4MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:39:10,201 INFO L158 Benchmark]: TraceAbstraction took 2882.36ms. Allocated memory was 100.7MB in the beginning and 136.3MB in the end (delta: 35.7MB). Free memory was 65.7MB in the beginning and 95.8MB in the end (delta: -30.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2022-11-18 20:39:10,202 INFO L158 Benchmark]: Witness Printer took 61.63ms. Allocated memory is still 136.3MB. Free memory was 95.8MB in the beginning and 93.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:39:10,204 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 100.7MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.73ms. Allocated memory is still 100.7MB. Free memory was 72.7MB in the beginning and 77.8MB in the end (delta: -5.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.63ms. Allocated memory is still 100.7MB. Free memory was 77.8MB in the beginning and 76.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.28ms. Allocated memory is still 100.7MB. Free memory was 76.2MB in the beginning and 75.4MB in the end (delta: 815.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 343.04ms. Allocated memory is still 100.7MB. Free memory was 75.4MB in the beginning and 66.4MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2882.36ms. Allocated memory was 100.7MB in the beginning and 136.3MB in the end (delta: 35.7MB). Free memory was 65.7MB in the beginning and 95.8MB in the end (delta: -30.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Witness Printer took 61.63ms. Allocated memory is still 136.3MB. Free memory was 95.8MB in the beginning and 93.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 71 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 146 IncrementalHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 25 mSDtfsCounter, 146 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=1, InterpolantAutomatonStates: 25, 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, 4 MinimizatonAttempts, 23 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 37 HoareAnnotationTreeSize, 3 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 67 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 243 SizeOfPredicates, 5 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 2/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((!(y <= 0) && x <= 2147483647) && xtmp <= 2147483647) && tmp <= 2147483647) && y <= 2147483647 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: x <= 2147483647 || (xtmp <= y + 2147483646 && xtmp <= 2147483647) RESULT: Ultimate proved your program to be correct! [2022-11-18 20:39:10,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8828b75-6311-495a-a03e-a58aec433fce/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE