./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/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_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/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 32bit --witnessprinter.graph.data.programhash 5c5b05c4ae88eb6dc9b39e487669b31df0ffdcd18c2998e1a9c5cebc84002587 --- 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 20:26:42,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:26:42,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:26:42,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:26:42,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:26:42,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:26:42,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:26:42,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:26:42,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:26:42,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:26:42,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:26:42,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:26:42,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:26:42,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:26:42,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:26:42,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:26:42,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:26:42,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:26:42,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:26:42,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:26:42,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:26:42,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:26:42,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:26:42,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:26:42,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:26:42,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:26:42,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:26:42,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:26:42,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:26:42,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:26:42,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:26:42,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:26:42,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:26:42,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:26:42,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:26:42,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:26:42,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:26:42,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:26:42,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:26:42,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:26:42,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:26:42,136 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:26:42,175 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:26:42,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:26:42,176 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:26:42,176 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:26:42,177 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:26:42,177 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:26:42,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:26:42,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:26:42,179 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:26:42,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:26:42,180 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:26:42,181 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:26:42,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:26:42,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:26:42,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:26:42,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:26:42,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:26:42,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:26:42,182 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:26:42,182 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:26:42,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:26:42,183 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:26:42,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:26:42,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:26:42,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:26:42,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:26:42,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:26:42,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:26:42,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:26:42,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:26:42,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:26:42,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:26:42,185 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:26:42,186 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:26:42,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:26:42,186 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_0b2b3184-ed98-4a96-932b-3655084c9629/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c5b05c4ae88eb6dc9b39e487669b31df0ffdcd18c2998e1a9c5cebc84002587 [2022-11-18 20:26:42,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:26:42,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:26:42,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:26:42,610 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:26:42,611 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:26:42,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c [2022-11-18 20:26:42,700 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/data/a621ebc8a/ade46a6b92164947980efe46117dda32/FLAG42e3a327e [2022-11-18 20:26:43,302 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:26:43,303 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c [2022-11-18 20:26:43,311 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/data/a621ebc8a/ade46a6b92164947980efe46117dda32/FLAG42e3a327e [2022-11-18 20:26:43,640 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/data/a621ebc8a/ade46a6b92164947980efe46117dda32 [2022-11-18 20:26:43,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:26:43,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:26:43,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:26:43,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:26:43,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:26:43,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:26:43" (1/1) ... [2022-11-18 20:26:43,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194ec164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:43, skipping insertion in model container [2022-11-18 20:26:43,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:26:43" (1/1) ... [2022-11-18 20:26:43,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:26:43,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:26:43,945 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c[1455,1468] [2022-11-18 20:26:43,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:26:43,961 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:26:44,009 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c[1455,1468] [2022-11-18 20:26:44,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:26:44,030 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:26:44,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:44 WrapperNode [2022-11-18 20:26:44,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:26:44,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:26:44,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:26:44,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:26:44,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:44" (1/1) ... [2022-11-18 20:26:44,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:44" (1/1) ... [2022-11-18 20:26:44,100 INFO L138 Inliner]: procedures = 18, calls = 55, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 133 [2022-11-18 20:26:44,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:26:44,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:26:44,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:26:44,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:26:44,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:44" (1/1) ... [2022-11-18 20:26:44,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:44" (1/1) ... [2022-11-18 20:26:44,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:44" (1/1) ... [2022-11-18 20:26:44,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:44" (1/1) ... [2022-11-18 20:26:44,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:44" (1/1) ... [2022-11-18 20:26:44,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:44" (1/1) ... [2022-11-18 20:26:44,150 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:44" (1/1) ... [2022-11-18 20:26:44,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:44" (1/1) ... [2022-11-18 20:26:44,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:26:44,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:26:44,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:26:44,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:26:44,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:44" (1/1) ... [2022-11-18 20:26:44,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:26:44,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:44,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:26:44,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:26:44,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:26:44,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:26:44,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:26:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-18 20:26:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:26:44,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:26:44,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-18 20:26:44,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:26:44,389 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:26:44,392 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:26:44,632 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:26:44,639 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:26:44,655 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:26:44,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:26:44 BoogieIcfgContainer [2022-11-18 20:26:44,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:26:44,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:26:44,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:26:44,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:26:44,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:26:43" (1/3) ... [2022-11-18 20:26:44,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464f6503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:26:44, skipping insertion in model container [2022-11-18 20:26:44,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:44" (2/3) ... [2022-11-18 20:26:44,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464f6503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:26:44, skipping insertion in model container [2022-11-18 20:26:44,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:26:44" (3/3) ... [2022-11-18 20:26:44,669 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation2.c.p+cfa-reducer.c [2022-11-18 20:26:44,702 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:26:44,719 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:26:44,837 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:26:44,853 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;@717184be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:26:44,854 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 20:26:44,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 20 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) [2022-11-18 20:26:44,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:26:44,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:26:44,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:26:44,875 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:26:44,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:44,891 INFO L85 PathProgramCache]: Analyzing trace with hash 118461035, now seen corresponding path program 1 times [2022-11-18 20:26:44,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:44,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807627388] [2022-11-18 20:26:44,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:44,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:45,217 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 20:26:45,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:45,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807627388] [2022-11-18 20:26:45,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807627388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:45,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:26:45,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:26:45,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122075292] [2022-11-18 20:26:45,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:45,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:26:45,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:45,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:26:45,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:26:45,267 INFO L87 Difference]: Start difference. First operand has 21 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 20 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) 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 20:26:45,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:26:45,321 INFO L93 Difference]: Finished difference Result 45 states and 58 transitions. [2022-11-18 20:26:45,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:26:45,324 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 20:26:45,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:26:45,335 INFO L225 Difference]: With dead ends: 45 [2022-11-18 20:26:45,335 INFO L226 Difference]: Without dead ends: 16 [2022-11-18 20:26:45,338 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 20:26:45,343 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 12 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:26:45,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 45 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:26:45,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-18 20:26:45,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-18 20:26:45,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:26:45,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-11-18 20:26:45,384 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 8 [2022-11-18 20:26:45,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:26:45,399 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-11-18 20:26:45,400 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 20:26:45,400 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-11-18 20:26:45,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 20:26:45,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:26:45,401 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:26:45,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:26:45,402 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:26:45,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:45,404 INFO L85 PathProgramCache]: Analyzing trace with hash -151148849, now seen corresponding path program 1 times [2022-11-18 20:26:45,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:45,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730204468] [2022-11-18 20:26:45,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:45,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:45,557 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:45,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:45,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730204468] [2022-11-18 20:26:45,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730204468] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:26:45,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551099092] [2022-11-18 20:26:45,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:45,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:45,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:45,571 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:26:45,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:26:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:45,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:26:45,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:26:45,795 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:45,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:26:45,864 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:45,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551099092] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:26:45,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:26:45,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-18 20:26:45,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127761046] [2022-11-18 20:26:45,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:26:45,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:26:45,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:45,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:26:45,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:26:45,876 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 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 20:26:45,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:26:45,945 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2022-11-18 20:26:45,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:26:45,947 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 20:26:45,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:26:45,948 INFO L225 Difference]: With dead ends: 21 [2022-11-18 20:26:45,948 INFO L226 Difference]: Without dead ends: 20 [2022-11-18 20:26:45,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:26:45,950 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:26:45,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 24 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:26:45,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-18 20:26:45,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2022-11-18 20:26:45,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:26:45,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-18 20:26:45,956 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-11-18 20:26:45,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:26:45,957 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-18 20:26:45,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 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 20:26:45,957 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-18 20:26:45,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 20:26:45,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:26:45,958 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:26:45,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:26:46,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:46,166 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:26:46,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:46,167 INFO L85 PathProgramCache]: Analyzing trace with hash -390646947, now seen corresponding path program 1 times [2022-11-18 20:26:46,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:46,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865003664] [2022-11-18 20:26:46,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:46,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:46,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:46,293 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:46,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:46,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865003664] [2022-11-18 20:26:46,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865003664] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:26:46,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157953251] [2022-11-18 20:26:46,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:46,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:46,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:46,297 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:26:46,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:26:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:46,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:26:46,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:26:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:46,476 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:26:46,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157953251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:46,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:26:46,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-18 20:26:46,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011059163] [2022-11-18 20:26:46,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:46,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:26:46,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:46,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:26:46,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:26:46,481 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:26:46,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:26:46,510 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-11-18 20:26:46,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:26:46,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 20:26:46,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:26:46,511 INFO L225 Difference]: With dead ends: 15 [2022-11-18 20:26:46,512 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:26:46,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:26:46,516 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:26:46,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:26:46,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:26:46,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:26:46,521 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 20:26:46,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:26:46,522 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-11-18 20:26:46,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:26:46,522 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:26:46,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:26:46,523 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:26:46,525 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:26:46,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-18 20:26:46,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-18 20:26:46,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:26:46,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:46,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:26:46,764 INFO L899 garLoopResultBuilder]: For program point L23(lines 23 100) no Hoare annotation was computed. [2022-11-18 20:26:46,764 INFO L895 garLoopResultBuilder]: At program point L77(lines 30 84) the Hoare annotation is: (or (= |ULTIMATE.start_main_~main__i~0#1| 0) (and (<= |ULTIMATE.start_main_~main__i~0#1| 2147483646) (<= 1 |ULTIMATE.start_main_~main__i~0#1|))) [2022-11-18 20:26:46,765 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 72) no Hoare annotation was computed. [2022-11-18 20:26:46,765 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:26:46,765 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 76) no Hoare annotation was computed. [2022-11-18 20:26:46,765 INFO L902 garLoopResultBuilder]: At program point L94(lines 25 95) the Hoare annotation is: true [2022-11-18 20:26:46,766 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:26:46,766 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:26:46,766 INFO L902 garLoopResultBuilder]: At program point L82(lines 33 83) the Hoare annotation is: true [2022-11-18 20:26:46,766 INFO L902 garLoopResultBuilder]: At program point L99(lines 23 100) the Hoare annotation is: true [2022-11-18 20:26:46,767 INFO L902 garLoopResultBuilder]: At program point L66(lines 42 67) the Hoare annotation is: true [2022-11-18 20:26:46,767 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 76) no Hoare annotation was computed. [2022-11-18 20:26:46,767 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:26:46,767 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 95) no Hoare annotation was computed. [2022-11-18 20:26:46,768 INFO L902 garLoopResultBuilder]: At program point L87(lines 12 101) the Hoare annotation is: true [2022-11-18 20:26:46,768 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 67) no Hoare annotation was computed. [2022-11-18 20:26:46,768 INFO L902 garLoopResultBuilder]: At program point L71(lines 40 72) the Hoare annotation is: true [2022-11-18 20:26:46,768 INFO L899 garLoopResultBuilder]: For program point L51(lines 51 59) no Hoare annotation was computed. [2022-11-18 20:26:46,769 INFO L899 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2022-11-18 20:26:46,769 INFO L899 garLoopResultBuilder]: For program point L76-1(line 76) no Hoare annotation was computed. [2022-11-18 20:26:46,769 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 78) no Hoare annotation was computed. [2022-11-18 20:26:46,773 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-18 20:26:46,776 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:26:46,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:26:46 BoogieIcfgContainer [2022-11-18 20:26:46,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:26:46,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:26:46,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:26:46,793 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:26:46,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:26:44" (3/4) ... [2022-11-18 20:26:46,797 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:26:46,810 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-18 20:26:46,810 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 20:26:46,811 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:26:46,811 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:26:46,884 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:26:46,884 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:26:46,885 INFO L158 Benchmark]: Toolchain (without parser) took 3237.43ms. Allocated memory was 107.0MB in the beginning and 142.6MB in the end (delta: 35.7MB). Free memory was 65.1MB in the beginning and 75.1MB in the end (delta: -10.0MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2022-11-18 20:26:46,886 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:26:46,886 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.86ms. Allocated memory is still 107.0MB. Free memory was 64.9MB in the beginning and 80.2MB in the end (delta: -15.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:26:46,887 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.82ms. Allocated memory is still 107.0MB. Free memory was 80.2MB in the beginning and 78.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:26:46,887 INFO L158 Benchmark]: Boogie Preprocessor took 60.69ms. Allocated memory is still 107.0MB. Free memory was 78.4MB in the beginning and 76.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:26:46,888 INFO L158 Benchmark]: RCFGBuilder took 493.99ms. Allocated memory is still 107.0MB. Free memory was 76.6MB in the beginning and 63.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:26:46,888 INFO L158 Benchmark]: TraceAbstraction took 2131.68ms. Allocated memory was 107.0MB in the beginning and 142.6MB in the end (delta: 35.7MB). Free memory was 63.1MB in the beginning and 78.3MB in the end (delta: -15.2MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2022-11-18 20:26:46,889 INFO L158 Benchmark]: Witness Printer took 91.74ms. Allocated memory is still 142.6MB. Free memory was 78.3MB in the beginning and 75.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:26:46,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.86ms. Allocated memory is still 107.0MB. Free memory was 64.9MB in the beginning and 80.2MB in the end (delta: -15.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.82ms. Allocated memory is still 107.0MB. Free memory was 80.2MB in the beginning and 78.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.69ms. Allocated memory is still 107.0MB. Free memory was 78.4MB in the beginning and 76.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 493.99ms. Allocated memory is still 107.0MB. Free memory was 76.6MB in the beginning and 63.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2131.68ms. Allocated memory was 107.0MB in the beginning and 142.6MB in the end (delta: 35.7MB). Free memory was 63.1MB in the beginning and 78.3MB in the end (delta: -15.2MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Witness Printer took 91.74ms. Allocated memory is still 142.6MB. Free memory was 78.3MB in the beginning and 75.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: 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, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 86 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 45 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 16 NumberOfFragments, 17 HoareAnnotationTreeSize, 7 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 211 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 4/17 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: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: main__i == 0 || (main__i <= 2147483646 && 1 <= main__i) RESULT: Ultimate proved your program to be correct! [2022-11-18 20:26:46,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2b3184-ed98-4a96-932b-3655084c9629/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