./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/b.03-no-inv_assume-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/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_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/b.03-no-inv_assume-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b72fdbcf4106a2c9e0e7bb38e5b48a5a42fbfd030e4e4dc43ee6290ba06c6869 --- 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 20:20:21,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:20:21,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:20:22,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:20:22,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:20:22,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:20:22,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:20:22,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:20:22,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:20:22,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:20:22,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:20:22,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:20:22,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:20:22,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:20:22,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:20:22,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:20:22,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:20:22,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:20:22,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:20:22,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:20:22,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:20:22,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:20:22,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:20:22,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:20:22,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:20:22,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:20:22,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:20:22,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:20:22,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:20:22,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:20:22,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:20:22,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:20:22,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:20:22,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:20:22,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:20:22,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:20:22,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:20:22,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:20:22,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:20:22,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:20:22,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:20:22,096 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-18 20:20:22,145 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:20:22,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:20:22,146 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:20:22,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:20:22,148 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:20:22,148 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:20:22,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:20:22,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:20:22,149 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:20:22,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:20:22,151 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:20:22,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:20:22,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:20:22,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:20:22,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:20:22,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:20:22,153 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:20:22,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:20:22,153 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:20:22,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:20:22,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:20:22,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:20:22,154 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:20:22,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:20:22,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:20:22,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:20:22,157 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:20:22,157 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:20:22,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:20:22,158 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:20:22,158 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:20:22,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:20:22,159 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_3aaad906-80ee-403e-9e90-17bd5bb3696f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b72fdbcf4106a2c9e0e7bb38e5b48a5a42fbfd030e4e4dc43ee6290ba06c6869 [2022-11-18 20:20:22,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:20:22,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:20:22,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:20:22,547 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:20:22,548 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:20:22,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-memory-alloca/b.03-no-inv_assume-alloca.i [2022-11-18 20:20:22,638 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/data/7a24bf736/19fe6e74b60e45fb8faea298988875c0/FLAG0144cb089 [2022-11-18 20:20:23,277 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:20:23,277 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/sv-benchmarks/c/termination-memory-alloca/b.03-no-inv_assume-alloca.i [2022-11-18 20:20:23,295 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/data/7a24bf736/19fe6e74b60e45fb8faea298988875c0/FLAG0144cb089 [2022-11-18 20:20:23,555 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/data/7a24bf736/19fe6e74b60e45fb8faea298988875c0 [2022-11-18 20:20:23,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:20:23,563 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:20:23,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:20:23,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:20:23,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:20:23,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:20:23" (1/1) ... [2022-11-18 20:20:23,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f150c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:23, skipping insertion in model container [2022-11-18 20:20:23,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:20:23" (1/1) ... [2022-11-18 20:20:23,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:20:23,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:20:24,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:20:24,040 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:20:24,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:20:24,150 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:20:24,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:24 WrapperNode [2022-11-18 20:20:24,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:20:24,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:20:24,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:20:24,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:20:24,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:24" (1/1) ... [2022-11-18 20:20:24,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:24" (1/1) ... [2022-11-18 20:20:24,220 INFO L138 Inliner]: procedures = 111, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2022-11-18 20:20:24,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:20:24,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:20:24,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:20:24,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:20:24,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:24" (1/1) ... [2022-11-18 20:20:24,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:24" (1/1) ... [2022-11-18 20:20:24,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:24" (1/1) ... [2022-11-18 20:20:24,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:24" (1/1) ... [2022-11-18 20:20:24,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:24" (1/1) ... [2022-11-18 20:20:24,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:24" (1/1) ... [2022-11-18 20:20:24,263 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:24" (1/1) ... [2022-11-18 20:20:24,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:24" (1/1) ... [2022-11-18 20:20:24,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:20:24,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:20:24,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:20:24,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:20:24,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:24" (1/1) ... [2022-11-18 20:20:24,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:20:24,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:20:24,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:20:24,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:20:24,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:20:24,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:20:24,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:20:24,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:20:24,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:20:24,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:20:24,530 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:20:24,532 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:20:24,732 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:20:24,744 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:20:24,744 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:20:24,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:20:24 BoogieIcfgContainer [2022-11-18 20:20:24,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:20:24,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:20:24,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:20:24,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:20:24,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:20:23" (1/3) ... [2022-11-18 20:20:24,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407d046d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:20:24, skipping insertion in model container [2022-11-18 20:20:24,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:24" (2/3) ... [2022-11-18 20:20:24,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407d046d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:20:24, skipping insertion in model container [2022-11-18 20:20:24,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:20:24" (3/3) ... [2022-11-18 20:20:24,771 INFO L112 eAbstractionObserver]: Analyzing ICFG b.03-no-inv_assume-alloca.i [2022-11-18 20:20:24,822 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:20:24,822 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 20:20:24,909 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:20:24,929 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;@2299f1c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:20:24,929 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-18 20:20:24,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:24,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 20:20:24,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:24,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:20:24,948 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:20:24,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:24,958 INFO L85 PathProgramCache]: Analyzing trace with hash 889571273, now seen corresponding path program 1 times [2022-11-18 20:20:24,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:24,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800217222] [2022-11-18 20:20:24,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:24,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:25,476 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 20:20:25,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:25,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800217222] [2022-11-18 20:20:25,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800217222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:25,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:25,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:20:25,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368707736] [2022-11-18 20:20:25,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:25,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:20:25,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:25,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:20:25,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:20:25,528 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:25,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:25,652 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2022-11-18 20:20:25,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:20:25,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-18 20:20:25,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:25,666 INFO L225 Difference]: With dead ends: 41 [2022-11-18 20:20:25,666 INFO L226 Difference]: Without dead ends: 25 [2022-11-18 20:20:25,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:20:25,675 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:25,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 53 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:20:25,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-18 20:20:25,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2022-11-18 20:20:25,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 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 20:20:25,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-18 20:20:25,713 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 6 [2022-11-18 20:20:25,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:25,714 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-18 20:20:25,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:25,720 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-18 20:20:25,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 20:20:25,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:25,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:25,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:20:25,723 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:20:25,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:25,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1806911822, now seen corresponding path program 1 times [2022-11-18 20:20:25,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:25,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525181756] [2022-11-18 20:20:25,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:25,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:25,784 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 20:20:25,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:25,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525181756] [2022-11-18 20:20:25,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525181756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:25,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:25,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:20:25,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546748779] [2022-11-18 20:20:25,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:25,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:20:25,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:25,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:20:25,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:20:25,789 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:25,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:25,825 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-11-18 20:20:25,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:20:25,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 20:20:25,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:25,827 INFO L225 Difference]: With dead ends: 29 [2022-11-18 20:20:25,827 INFO L226 Difference]: Without dead ends: 17 [2022-11-18 20:20:25,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 20:20:25,830 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:25,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:20:25,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-18 20:20:25,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-18 20:20:25,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 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 20:20:25,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-11-18 20:20:25,836 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2022-11-18 20:20:25,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:25,837 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-11-18 20:20:25,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:25,837 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-11-18 20:20:25,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 20:20:25,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:25,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:25,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:20:25,839 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:20:25,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:25,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1806905736, now seen corresponding path program 1 times [2022-11-18 20:20:25,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:25,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267801260] [2022-11-18 20:20:25,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:25,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:26,308 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 20:20:26,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:26,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267801260] [2022-11-18 20:20:26,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267801260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:26,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:26,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:20:26,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141333489] [2022-11-18 20:20:26,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:26,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:20:26,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:26,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:20:26,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:20:26,313 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:26,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:26,360 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-11-18 20:20:26,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:20:26,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 20:20:26,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:26,362 INFO L225 Difference]: With dead ends: 17 [2022-11-18 20:20:26,362 INFO L226 Difference]: Without dead ends: 16 [2022-11-18 20:20:26,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:20:26,365 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:26,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 13 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:20:26,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-18 20:20:26,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-18 20:20:26,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 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 20:20:26,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-11-18 20:20:26,372 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2022-11-18 20:20:26,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:26,373 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-11-18 20:20:26,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:26,373 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-11-18 20:20:26,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:20:26,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:26,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:26,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:20:26,375 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:20:26,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:26,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1269626538, now seen corresponding path program 1 times [2022-11-18 20:20:26,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:26,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936460594] [2022-11-18 20:20:26,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:26,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:26,746 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 20:20:26,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:26,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936460594] [2022-11-18 20:20:26,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936460594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:26,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:26,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:20:26,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305285967] [2022-11-18 20:20:26,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:26,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:20:26,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:26,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:20:26,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:20:26,775 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:26,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:26,890 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-18 20:20:26,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:20:26,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 20:20:26,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:26,894 INFO L225 Difference]: With dead ends: 16 [2022-11-18 20:20:26,895 INFO L226 Difference]: Without dead ends: 15 [2022-11-18 20:20:26,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:20:26,907 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:26,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 10 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:20:26,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-18 20:20:26,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-18 20:20:26,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 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 20:20:26,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-18 20:20:26,918 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 9 [2022-11-18 20:20:26,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:26,919 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-18 20:20:26,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:26,920 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-18 20:20:26,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 20:20:26,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:26,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:26,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:20:26,923 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:20:26,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:26,924 INFO L85 PathProgramCache]: Analyzing trace with hash 703717075, now seen corresponding path program 1 times [2022-11-18 20:20:26,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:26,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739286820] [2022-11-18 20:20:26,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:26,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:27,189 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 20:20:27,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:27,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739286820] [2022-11-18 20:20:27,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739286820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:27,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:27,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:20:27,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522517905] [2022-11-18 20:20:27,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:27,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:20:27,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:27,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:20:27,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:20:27,197 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:27,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:27,266 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-11-18 20:20:27,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:20:27,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-18 20:20:27,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:27,269 INFO L225 Difference]: With dead ends: 20 [2022-11-18 20:20:27,270 INFO L226 Difference]: Without dead ends: 19 [2022-11-18 20:20:27,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:20:27,277 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:27,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 21 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:20:27,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-18 20:20:27,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-18 20:20:27,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 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 20:20:27,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2022-11-18 20:20:27,288 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2022-11-18 20:20:27,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:27,288 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2022-11-18 20:20:27,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:27,290 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2022-11-18 20:20:27,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 20:20:27,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:27,294 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:27,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:20:27,295 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:20:27,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:27,297 INFO L85 PathProgramCache]: Analyzing trace with hash 700051353, now seen corresponding path program 1 times [2022-11-18 20:20:27,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:27,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742197058] [2022-11-18 20:20:27,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:27,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:27,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:20:27,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:27,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742197058] [2022-11-18 20:20:27,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742197058] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:20:27,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938532438] [2022-11-18 20:20:27,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:27,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:27,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:20:27,587 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:20:27,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:20:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:27,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-18 20:20:27,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:27,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-18 20:20:27,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:20:27,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 20:20:27,973 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 20:20:27,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:20:28,018 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_84 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_ArrVal_84) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|) 1))) is different from false [2022-11-18 20:20:28,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-11-18 20:20:28,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938532438] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:20:28,180 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:20:28,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 9 [2022-11-18 20:20:28,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111008639] [2022-11-18 20:20:28,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:20:28,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:20:28,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:28,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:20:28,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=52, Unknown=1, NotChecked=14, Total=90 [2022-11-18 20:20:28,185 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 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) [2022-11-18 20:20:28,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:28,286 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-18 20:20:28,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:20:28,287 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 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) Word has length 13 [2022-11-18 20:20:28,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:28,288 INFO L225 Difference]: With dead ends: 19 [2022-11-18 20:20:28,289 INFO L226 Difference]: Without dead ends: 18 [2022-11-18 20:20:28,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=62, Unknown=1, NotChecked=16, Total=110 [2022-11-18 20:20:28,291 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:28,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 18 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 6 Unchecked, 0.0s Time] [2022-11-18 20:20:28,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-18 20:20:28,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-18 20:20:28,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:28,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-18 20:20:28,300 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 13 [2022-11-18 20:20:28,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:28,301 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-18 20:20:28,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 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) [2022-11-18 20:20:28,301 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-18 20:20:28,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 20:20:28,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:28,307 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 20:20:28,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:20:28,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-18 20:20:28,514 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:20:28,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:28,514 INFO L85 PathProgramCache]: Analyzing trace with hash -710041949, now seen corresponding path program 1 times [2022-11-18 20:20:28,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:28,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244045661] [2022-11-18 20:20:28,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:28,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:28,853 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:20:28,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:28,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244045661] [2022-11-18 20:20:28,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244045661] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:20:28,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866765467] [2022-11-18 20:20:28,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:28,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:28,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:20:28,857 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:20:28,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:20:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:28,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:20:28,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:28,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:20:29,094 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:20:29,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 27 [2022-11-18 20:20:29,134 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:20:29,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:20:29,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866765467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:29,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:20:29,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-11-18 20:20:29,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814707173] [2022-11-18 20:20:29,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:29,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:20:29,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:29,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:20:29,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:20:29,137 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 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 20:20:29,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:29,216 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-11-18 20:20:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:20:29,216 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 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) Word has length 17 [2022-11-18 20:20:29,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:29,217 INFO L225 Difference]: With dead ends: 18 [2022-11-18 20:20:29,217 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:20:29,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:20:29,218 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 10 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:29,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 8 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:20:29,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:20:29,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:20:29,219 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 20:20:29,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:20:29,219 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-11-18 20:20:29,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:29,220 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:20:29,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 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 20:20:29,220 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:20:29,220 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:20:29,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-18 20:20:29,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-18 20:20:29,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-18 20:20:29,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-18 20:20:29,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:20:29,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:29,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:20:29,479 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 556) no Hoare annotation was computed. [2022-11-18 20:20:29,480 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:20:29,480 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 557) no Hoare annotation was computed. [2022-11-18 20:20:29,480 INFO L902 garLoopResultBuilder]: At program point L562(lines 561 563) the Hoare annotation is: true [2022-11-18 20:20:29,481 INFO L899 garLoopResultBuilder]: For program point L556-1(line 556) no Hoare annotation was computed. [2022-11-18 20:20:29,481 INFO L899 garLoopResultBuilder]: For program point L556-2(line 556) no Hoare annotation was computed. [2022-11-18 20:20:29,481 INFO L899 garLoopResultBuilder]: For program point L556-3(line 556) no Hoare annotation was computed. [2022-11-18 20:20:29,481 INFO L899 garLoopResultBuilder]: For program point L556-5(lines 556 558) no Hoare annotation was computed. [2022-11-18 20:20:29,482 INFO L895 garLoopResultBuilder]: At program point L556-7(lines 556 558) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base|) |ULTIMATE.start_test_fun_~x_ref~0#1.offset|))) (and (not (= |ULTIMATE.start_test_fun_~y_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (<= .cse0 4294967295) (<= 1 .cse0) (<= 0 (+ (select (select |#memory_int| |ULTIMATE.start_test_fun_~y_ref~0#1.base|) |ULTIMATE.start_test_fun_~y_ref~0#1.offset|) 2147483648)))) [2022-11-18 20:20:29,482 INFO L899 garLoopResultBuilder]: For program point L556-8(lines 556 558) no Hoare annotation was computed. [2022-11-18 20:20:29,482 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:20:29,483 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 556) no Hoare annotation was computed. [2022-11-18 20:20:29,483 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 557) no Hoare annotation was computed. [2022-11-18 20:20:29,483 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:20:29,483 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:20:29,484 INFO L902 garLoopResultBuilder]: At program point L559(lines 547 560) the Hoare annotation is: true [2022-11-18 20:20:29,484 INFO L899 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2022-11-18 20:20:29,484 INFO L899 garLoopResultBuilder]: For program point L557-1(line 557) no Hoare annotation was computed. [2022-11-18 20:20:29,484 INFO L899 garLoopResultBuilder]: For program point L553(lines 553 555) no Hoare annotation was computed. [2022-11-18 20:20:29,488 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:29,491 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:20:29,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:20:29 BoogieIcfgContainer [2022-11-18 20:20:29,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:20:29,510 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:20:29,510 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:20:29,510 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:20:29,511 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:20:24" (3/4) ... [2022-11-18 20:20:29,515 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:20:29,528 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-18 20:20:29,528 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 20:20:29,528 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:20:29,529 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:20:29,572 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:20:29,572 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:20:29,573 INFO L158 Benchmark]: Toolchain (without parser) took 6009.51ms. Allocated memory was 123.7MB in the beginning and 167.8MB in the end (delta: 44.0MB). Free memory was 82.6MB in the beginning and 134.1MB in the end (delta: -51.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:20:29,573 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 123.7MB. Free memory is still 100.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:20:29,574 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.14ms. Allocated memory is still 123.7MB. Free memory was 82.3MB in the beginning and 92.6MB in the end (delta: -10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:20:29,574 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.88ms. Allocated memory is still 123.7MB. Free memory was 92.6MB in the beginning and 90.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:20:29,575 INFO L158 Benchmark]: Boogie Preprocessor took 42.90ms. Allocated memory is still 123.7MB. Free memory was 90.9MB in the beginning and 89.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:20:29,575 INFO L158 Benchmark]: RCFGBuilder took 493.73ms. Allocated memory is still 123.7MB. Free memory was 89.5MB in the beginning and 77.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:20:29,576 INFO L158 Benchmark]: TraceAbstraction took 4746.44ms. Allocated memory was 123.7MB in the beginning and 167.8MB in the end (delta: 44.0MB). Free memory was 77.4MB in the beginning and 137.2MB in the end (delta: -59.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:20:29,577 INFO L158 Benchmark]: Witness Printer took 62.54ms. Allocated memory is still 167.8MB. Free memory was 137.2MB in the beginning and 134.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:20:29,579 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 123.7MB. Free memory is still 100.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 583.14ms. Allocated memory is still 123.7MB. Free memory was 82.3MB in the beginning and 92.6MB in the end (delta: -10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.88ms. Allocated memory is still 123.7MB. Free memory was 92.6MB in the beginning and 90.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.90ms. Allocated memory is still 123.7MB. Free memory was 90.9MB in the beginning and 89.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 493.73ms. Allocated memory is still 123.7MB. Free memory was 89.5MB in the beginning and 77.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4746.44ms. Allocated memory was 123.7MB in the beginning and 167.8MB in the end (delta: 44.0MB). Free memory was 77.4MB in the beginning and 137.2MB in the end (delta: -59.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.54ms. Allocated memory is still 167.8MB. Free memory was 137.2MB in the beginning and 134.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 557]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 557]: 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, 19 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 57 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 147 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 6 IncrementalHoareTripleChecker+Unchecked, 94 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 53 mSDtfsCounter, 176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 30 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 43 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 102 ConstructedInterpolants, 8 QuantifiedInterpolants, 875 SizeOfPredicates, 13 NumberOfNonLiveVariables, 211 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 13/23 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 4 specifications checked. All of them hold - InvariantResult [Line: 547]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: ((!(y_ref == x_ref) && unknown-#memory_int-unknown[x_ref][x_ref] <= 4294967295) && 1 <= unknown-#memory_int-unknown[x_ref][x_ref]) && 0 <= unknown-#memory_int-unknown[y_ref][y_ref] + 2147483648 RESULT: Ultimate proved your program to be correct! [2022-11-18 20:20:29,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aaad906-80ee-403e-9e90-17bd5bb3696f/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