./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-memsafety/stroeder1-alloca-1.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_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/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_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-memsafety/stroeder1-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/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_78f47569-82b8-481e-90b3-e8219a2ec478/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 7ecc590057ed2a75208183cfd6234616268fa2b1af2dc90ae740756ef7d3d489 --- 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 12:26:24,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:26:24,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:26:24,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:26:24,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:26:24,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:26:24,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:26:24,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:26:24,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:26:24,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:26:24,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:26:24,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:26:24,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:26:24,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:26:24,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:26:24,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:26:24,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:26:24,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:26:24,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:26:24,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:26:24,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:26:24,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:26:24,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:26:24,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:26:24,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:26:24,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:26:24,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:26:24,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:26:24,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:26:24,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:26:24,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:26:24,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:26:24,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:26:24,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:26:24,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:26:24,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:26:24,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:26:24,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:26:24,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:26:24,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:26:24,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:26:24,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 12:26:24,988 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:26:24,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:26:24,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:26:24,994 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:26:24,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:26:24,995 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:26:24,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:26:24,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:26:24,996 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:26:24,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:26:24,998 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:26:24,998 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:26:24,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:26:24,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:26:24,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:26:24,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:26:24,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:26:24,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:26:25,000 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 12:26:25,000 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:26:25,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:26:25,000 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:26:25,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:26:25,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:26:25,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:26:25,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:26:25,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:26:25,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:26:25,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:26:25,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:26:25,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:26:25,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:26:25,004 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:26:25,004 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:26:25,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:26:25,004 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_78f47569-82b8-481e-90b3-e8219a2ec478/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ecc590057ed2a75208183cfd6234616268fa2b1af2dc90ae740756ef7d3d489 [2022-11-20 12:26:25,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:26:25,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:26:25,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:26:25,284 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:26:25,284 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:26:25,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/array-memsafety/stroeder1-alloca-1.i [2022-11-20 12:26:28,406 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:26:28,673 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:26:28,680 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/sv-benchmarks/c/array-memsafety/stroeder1-alloca-1.i [2022-11-20 12:26:28,695 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/data/9f08fe10e/0ab9b14226a1478c8f8dd61bc944a7e0/FLAG9b1748875 [2022-11-20 12:26:28,717 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/data/9f08fe10e/0ab9b14226a1478c8f8dd61bc944a7e0 [2022-11-20 12:26:28,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:26:28,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:26:28,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:26:28,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:26:28,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:26:28,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:26:28" (1/1) ... [2022-11-20 12:26:28,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f22149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:28, skipping insertion in model container [2022-11-20 12:26:28,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:26:28" (1/1) ... [2022-11-20 12:26:28,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:26:28,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:26:29,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:26:29,097 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:26:29,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:26:29,200 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:26:29,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:29 WrapperNode [2022-11-20 12:26:29,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:26:29,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:26:29,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:26:29,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:26:29,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:29" (1/1) ... [2022-11-20 12:26:29,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:29" (1/1) ... [2022-11-20 12:26:29,262 INFO L138 Inliner]: procedures = 116, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-11-20 12:26:29,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:26:29,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:26:29,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:26:29,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:26:29,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:29" (1/1) ... [2022-11-20 12:26:29,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:29" (1/1) ... [2022-11-20 12:26:29,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:29" (1/1) ... [2022-11-20 12:26:29,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:29" (1/1) ... [2022-11-20 12:26:29,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:29" (1/1) ... [2022-11-20 12:26:29,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:29" (1/1) ... [2022-11-20 12:26:29,308 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:29" (1/1) ... [2022-11-20 12:26:29,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:29" (1/1) ... [2022-11-20 12:26:29,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:26:29,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:26:29,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:26:29,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:26:29,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:29" (1/1) ... [2022-11-20 12:26:29,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:26:29,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:26:29,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:26:29,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:26:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:26:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:26:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:26:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:26:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:26:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:26:29,550 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:26:29,553 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:26:29,753 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:26:29,759 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:26:29,767 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 12:26:29,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:26:29 BoogieIcfgContainer [2022-11-20 12:26:29,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:26:29,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:26:29,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:26:29,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:26:29,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:26:28" (1/3) ... [2022-11-20 12:26:29,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c2b255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:26:29, skipping insertion in model container [2022-11-20 12:26:29,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:29" (2/3) ... [2022-11-20 12:26:29,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c2b255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:26:29, skipping insertion in model container [2022-11-20 12:26:29,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:26:29" (3/3) ... [2022-11-20 12:26:29,780 INFO L112 eAbstractionObserver]: Analyzing ICFG stroeder1-alloca-1.i [2022-11-20 12:26:29,816 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:26:29,816 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-20 12:26:29,867 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:26:29,873 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;@23ffebb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:26:29,874 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-20 12:26:29,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:26:29,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 12:26:29,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:26:29,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:26:29,886 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:26:29,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:26:29,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1804971307, now seen corresponding path program 1 times [2022-11-20 12:26:29,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:26:29,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508165052] [2022-11-20 12:26:29,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:29,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:26:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:26:30,242 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 12:26:30,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:26:30,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508165052] [2022-11-20 12:26:30,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508165052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:26:30,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:26:30,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:26:30,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717591396] [2022-11-20 12:26:30,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:26:30,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:26:30,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:26:30,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:26:30,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:26:30,287 INFO L87 Difference]: Start difference. First operand has 26 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:26:30,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:26:30,386 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2022-11-20 12:26:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:26:30,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-20 12:26:30,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:26:30,398 INFO L225 Difference]: With dead ends: 64 [2022-11-20 12:26:30,398 INFO L226 Difference]: Without dead ends: 36 [2022-11-20 12:26:30,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:26:30,405 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 20 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:26:30,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 65 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:26:30,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-20 12:26:30,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 25. [2022-11-20 12:26:30,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 24 states have internal predecessors, (28), 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 12:26:30,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-11-20 12:26:30,451 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 7 [2022-11-20 12:26:30,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:26:30,456 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-11-20 12:26:30,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:26:30,457 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-11-20 12:26:30,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 12:26:30,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:26:30,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:26:30,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:26:30,460 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:26:30,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:26:30,461 INFO L85 PathProgramCache]: Analyzing trace with hash 119484276, now seen corresponding path program 1 times [2022-11-20 12:26:30,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:26:30,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540577851] [2022-11-20 12:26:30,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:30,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:26:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:26:30,600 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 12:26:30,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:26:30,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540577851] [2022-11-20 12:26:30,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540577851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:26:30,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:26:30,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:26:30,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348163217] [2022-11-20 12:26:30,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:26:30,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:26:30,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:26:30,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:26:30,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:26:30,608 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:26:30,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:26:30,657 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2022-11-20 12:26:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:26:30,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-20 12:26:30,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:26:30,662 INFO L225 Difference]: With dead ends: 36 [2022-11-20 12:26:30,662 INFO L226 Difference]: Without dead ends: 25 [2022-11-20 12:26:30,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:26:30,664 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 26 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:26:30,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 32 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:26:30,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-20 12:26:30,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-20 12:26:30,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:26:30,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-11-20 12:26:30,673 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 8 [2022-11-20 12:26:30,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:26:30,674 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-11-20 12:26:30,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:26:30,675 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-11-20 12:26:30,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 12:26:30,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:26:30,677 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:26:30,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:26:30,679 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:26:30,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:26:30,681 INFO L85 PathProgramCache]: Analyzing trace with hash 560852455, now seen corresponding path program 1 times [2022-11-20 12:26:30,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:26:30,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758706636] [2022-11-20 12:26:30,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:30,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:26:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:26:30,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:26:30,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:26:30,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758706636] [2022-11-20 12:26:30,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758706636] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:26:30,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577062584] [2022-11-20 12:26:30,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:30,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:26:30,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:26:30,917 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:26:30,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:26:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:26:31,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:26:31,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:26:31,129 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:26:31,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:26:31,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577062584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:26:31,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:26:31,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-11-20 12:26:31,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105231535] [2022-11-20 12:26:31,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:26:31,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:26:31,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:26:31,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:26:31,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:26:31,133 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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 12:26:31,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:26:31,211 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2022-11-20 12:26:31,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:26:31,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2022-11-20 12:26:31,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:26:31,213 INFO L225 Difference]: With dead ends: 59 [2022-11-20 12:26:31,213 INFO L226 Difference]: Without dead ends: 42 [2022-11-20 12:26:31,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:26:31,215 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 16 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:26:31,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 70 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:26:31,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-20 12:26:31,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 31. [2022-11-20 12:26:31,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 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 12:26:31,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2022-11-20 12:26:31,222 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 11 [2022-11-20 12:26:31,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:26:31,223 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2022-11-20 12:26:31,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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 12:26:31,223 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2022-11-20 12:26:31,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 12:26:31,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:26:31,224 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:26:31,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:26:31,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:26:31,430 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:26:31,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:26:31,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1240910825, now seen corresponding path program 1 times [2022-11-20 12:26:31,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:26:31,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666948474] [2022-11-20 12:26:31,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:31,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:26:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:26:31,546 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:26:31,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:26:31,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666948474] [2022-11-20 12:26:31,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666948474] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:26:31,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597947046] [2022-11-20 12:26:31,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:31,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:26:31,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:26:31,551 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:26:31,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 12:26:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:26:31,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:26:31,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:26:31,681 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:26:31,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:26:31,752 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:26:31,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597947046] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:26:31,752 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:26:31,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-20 12:26:31,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887565426] [2022-11-20 12:26:31,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:26:31,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 12:26:31,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:26:31,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 12:26:31,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:26:31,755 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 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 12:26:31,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:26:31,906 INFO L93 Difference]: Finished difference Result 80 states and 87 transitions. [2022-11-20 12:26:31,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 12:26:31,907 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 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 11 [2022-11-20 12:26:31,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:26:31,908 INFO L225 Difference]: With dead ends: 80 [2022-11-20 12:26:31,908 INFO L226 Difference]: Without dead ends: 79 [2022-11-20 12:26:31,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:26:31,910 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 103 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:26:31,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 100 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:26:31,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-20 12:26:31,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 42. [2022-11-20 12:26:31,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 41 states have internal predecessors, (49), 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 12:26:31,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2022-11-20 12:26:31,918 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 11 [2022-11-20 12:26:31,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:26:31,919 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2022-11-20 12:26:31,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 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 12:26:31,919 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2022-11-20 12:26:31,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 12:26:31,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:26:31,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:26:31,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:26:32,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:26:32,125 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:26:32,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:26:32,126 INFO L85 PathProgramCache]: Analyzing trace with hash 206505528, now seen corresponding path program 1 times [2022-11-20 12:26:32,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:26:32,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77933456] [2022-11-20 12:26:32,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:32,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:26:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:26:32,150 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:26:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:26:32,179 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:26:32,179 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:26:32,180 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-20 12:26:32,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-20 12:26:32,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-20 12:26:32,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-20 12:26:32,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-20 12:26:32,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-20 12:26:32,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:26:32,188 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 12:26:32,192 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:26:32,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:26:32 BoogieIcfgContainer [2022-11-20 12:26:32,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:26:32,217 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:26:32,217 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:26:32,218 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:26:32,218 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:26:29" (3/4) ... [2022-11-20 12:26:32,220 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 12:26:32,277 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:26:32,277 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:26:32,281 INFO L158 Benchmark]: Toolchain (without parser) took 3559.83ms. Allocated memory was 138.4MB in the beginning and 205.5MB in the end (delta: 67.1MB). Free memory was 94.3MB in the beginning and 104.2MB in the end (delta: -10.0MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2022-11-20 12:26:32,281 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:26:32,281 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.53ms. Allocated memory is still 138.4MB. Free memory was 94.3MB in the beginning and 78.5MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 12:26:32,282 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.94ms. Allocated memory is still 138.4MB. Free memory was 78.0MB in the beginning and 76.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:26:32,282 INFO L158 Benchmark]: Boogie Preprocessor took 56.41ms. Allocated memory is still 138.4MB. Free memory was 76.6MB in the beginning and 74.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:26:32,282 INFO L158 Benchmark]: RCFGBuilder took 449.68ms. Allocated memory is still 138.4MB. Free memory was 74.9MB in the beginning and 63.8MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 12:26:32,283 INFO L158 Benchmark]: TraceAbstraction took 2444.42ms. Allocated memory was 138.4MB in the beginning and 205.5MB in the end (delta: 67.1MB). Free memory was 62.8MB in the beginning and 106.3MB in the end (delta: -43.5MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2022-11-20 12:26:32,283 INFO L158 Benchmark]: Witness Printer took 62.65ms. Allocated memory is still 205.5MB. Free memory was 106.3MB in the beginning and 104.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:26:32,285 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 479.53ms. Allocated memory is still 138.4MB. Free memory was 94.3MB in the beginning and 78.5MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.94ms. Allocated memory is still 138.4MB. Free memory was 78.0MB in the beginning and 76.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.41ms. Allocated memory is still 138.4MB. Free memory was 76.6MB in the beginning and 74.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 449.68ms. Allocated memory is still 138.4MB. Free memory was 74.9MB in the beginning and 63.8MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2444.42ms. Allocated memory was 138.4MB in the beginning and 205.5MB in the end (delta: 67.1MB). Free memory was 62.8MB in the beginning and 106.3MB in the end (delta: -43.5MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * Witness Printer took 62.65ms. Allocated memory is still 205.5MB. Free memory was 106.3MB in the beginning and 104.2MB 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 - CounterExampleResult [Line: 520]: integer overflow possible integer overflow possible We found a FailurePath: [L525] int array_size = __VERIFIER_nondet_int(); [L526] COND TRUE array_size < 1 || array_size >= 2147483647 / sizeof(int) [L527] array_size = 1 VAL [array_size=1] [L529] int* numbers = (int*) __builtin_alloca (array_size * sizeof(int)); [L531] int i = 0; VAL [__builtin_alloca (array_size * sizeof(int))={3:0}, array_size=1, i=0, numbers={3:0}] [L531] COND TRUE i < array_size [L533] numbers[i] = __VERIFIER_nondet_int() [L531] i++ VAL [__builtin_alloca (array_size * sizeof(int))={3:0}, array_size=1, i=1, numbers={3:0}] [L531] COND FALSE !(i < array_size) VAL [__builtin_alloca (array_size * sizeof(int))={3:0}, array_size=1, i=1, numbers={3:0}] [L535] CALL sumOfThirdBytes(numbers, array_size) [L514] int i, sum; [L515] char* p; [L516] sum = 0 [L517] i = 0 VAL [\old(array_size)=1, array_size=1, i=0, numbers={3:0}, numbers={3:0}, sum=0] [L517] COND TRUE i < array_size [L518] p = &(numbers[i]) [L519] p = p + 2 [L520] EXPR \read(*p) VAL [\old(array_size)=1, \read(*p)=2147483648, array_size=1, i=0, numbers={3:0}, numbers={3:0}, p={3:2}, sum=0] [L520] sum + *p VAL [\old(array_size)=1, \read(*p)=2147483648, array_size=1, i=0, numbers={3:0}, numbers={3:0}, p={3:2}, sum=0] - UnprovableResult [Line: 531]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 520]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 517]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 517]: 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, 26 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 165 mSDsluCounter, 267 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 193 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 74 mSDtfsCounter, 126 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=4, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 59 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 179 SizeOfPredicates, 5 NumberOfNonLiveVariables, 109 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 5/15 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 12:26:32,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f47569-82b8-481e-90b3-e8219a2ec478/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)