./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/c.07-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/c.07-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R --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 93b4a0ba0c9f7effb12d2a47608c061d55502e7c43d58dada73542f7a20a21c1 --- 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-38b53e6 [2022-11-25 17:32:01,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:32:01,200 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:32:01,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:32:01,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:32:01,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:32:01,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:32:01,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:32:01,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:32:01,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:32:01,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:32:01,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:32:01,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:32:01,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:32:01,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:32:01,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:32:01,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:32:01,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:32:01,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:32:01,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:32:01,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:32:01,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:32:01,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:32:01,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:32:01,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:32:01,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:32:01,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:32:01,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:32:01,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:32:01,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:32:01,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:32:01,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:32:01,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:32:01,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:32:01,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:32:01,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:32:01,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:32:01,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:32:01,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:32:01,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:32:01,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:32:01,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 17:32:01,324 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:32:01,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:32:01,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:32:01,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:32:01,325 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:32:01,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:32:01,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:32:01,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:32:01,326 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:32:01,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:32:01,327 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:32:01,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:32:01,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:32:01,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:32:01,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:32:01,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:32:01,338 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:32:01,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:32:01,339 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:32:01,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:32:01,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:32:01,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:32:01,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:32:01,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:32:01,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:32:01,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:32:01,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:32:01,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:32:01,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:32:01,343 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:32:01,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:32:01,343 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:32:01,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:32:01,344 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93b4a0ba0c9f7effb12d2a47608c061d55502e7c43d58dada73542f7a20a21c1 [2022-11-25 17:32:01,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:32:01,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:32:01,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:32:01,686 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:32:01,687 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:32:01,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-memory-alloca/c.07-alloca.i [2022-11-25 17:32:04,814 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:32:05,130 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:32:05,130 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/sv-benchmarks/c/termination-memory-alloca/c.07-alloca.i [2022-11-25 17:32:05,143 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/data/4d6dbcfbc/6339ffc25783493aa166214c586298d6/FLAG59a5f0331 [2022-11-25 17:32:05,158 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/data/4d6dbcfbc/6339ffc25783493aa166214c586298d6 [2022-11-25 17:32:05,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:32:05,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:32:05,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:32:05,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:32:05,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:32:05,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:32:05" (1/1) ... [2022-11-25 17:32:05,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7908ec85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:05, skipping insertion in model container [2022-11-25 17:32:05,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:32:05" (1/1) ... [2022-11-25 17:32:05,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:32:05,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:32:05,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:32:05,576 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:32:05,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:32:05,639 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:32:05,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:05 WrapperNode [2022-11-25 17:32:05,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:32:05,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:32:05,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:32:05,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:32:05,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:05" (1/1) ... [2022-11-25 17:32:05,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:05" (1/1) ... [2022-11-25 17:32:05,684 INFO L138 Inliner]: procedures = 111, calls = 35, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 100 [2022-11-25 17:32:05,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:32:05,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:32:05,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:32:05,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:32:05,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:05" (1/1) ... [2022-11-25 17:32:05,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:05" (1/1) ... [2022-11-25 17:32:05,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:05" (1/1) ... [2022-11-25 17:32:05,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:05" (1/1) ... [2022-11-25 17:32:05,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:05" (1/1) ... [2022-11-25 17:32:05,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:05" (1/1) ... [2022-11-25 17:32:05,721 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:05" (1/1) ... [2022-11-25 17:32:05,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:05" (1/1) ... [2022-11-25 17:32:05,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:32:05,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:32:05,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:32:05,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:32:05,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:05" (1/1) ... [2022-11-25 17:32:05,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:32:05,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:32:05,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:32:05,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:32:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:32:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:32:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:32:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:32:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:32:05,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:32:05,980 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:32:05,982 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:32:06,223 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:32:06,229 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:32:06,229 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:32:06,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:32:06 BoogieIcfgContainer [2022-11-25 17:32:06,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:32:06,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:32:06,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:32:06,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:32:06,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:32:05" (1/3) ... [2022-11-25 17:32:06,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c98aef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:32:06, skipping insertion in model container [2022-11-25 17:32:06,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:05" (2/3) ... [2022-11-25 17:32:06,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c98aef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:32:06, skipping insertion in model container [2022-11-25 17:32:06,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:32:06" (3/3) ... [2022-11-25 17:32:06,242 INFO L112 eAbstractionObserver]: Analyzing ICFG c.07-alloca.i [2022-11-25 17:32:06,276 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:32:06,290 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 17:32:06,361 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:32:06,373 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;@5a988aaf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:32:06,373 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 17:32:06,377 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:06,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 17:32:06,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:32:06,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:32:06,390 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)] === [2022-11-25 17:32:06,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:06,397 INFO L85 PathProgramCache]: Analyzing trace with hash 177626378, now seen corresponding path program 1 times [2022-11-25 17:32:06,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:06,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728143190] [2022-11-25 17:32:06,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:06,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:09,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:32:09,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:09,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728143190] [2022-11-25 17:32:09,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728143190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:32:09,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:32:09,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:32:09,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351835260] [2022-11-25 17:32:09,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:32:09,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:32:09,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:32:09,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:32:09,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:32:09,164 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:09,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:32:09,318 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2022-11-25 17:32:09,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:32:09,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-25 17:32:09,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:32:09,329 INFO L225 Difference]: With dead ends: 37 [2022-11-25 17:32:09,329 INFO L226 Difference]: Without dead ends: 21 [2022-11-25 17:32:09,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:32:09,337 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:32:09,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 57 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:32:09,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-25 17:32:09,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-25 17:32:09,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:09,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2022-11-25 17:32:09,371 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 8 [2022-11-25 17:32:09,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:32:09,372 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-11-25 17:32:09,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:09,372 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-11-25 17:32:09,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 17:32:09,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:32:09,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:32:09,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:32:09,374 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 17:32:09,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:09,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1211450481, now seen corresponding path program 1 times [2022-11-25 17:32:09,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:09,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726826771] [2022-11-25 17:32:09,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:09,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:09,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:32:09,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:09,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726826771] [2022-11-25 17:32:09,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726826771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:32:09,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:32:09,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:32:09,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737225678] [2022-11-25 17:32:09,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:32:09,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:32:09,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:32:09,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:32:09,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:32:09,956 INFO L87 Difference]: Start difference. First operand 21 states and 25 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) [2022-11-25 17:32:10,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:32:10,014 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2022-11-25 17:32:10,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:32:10,017 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 [2022-11-25 17:32:10,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:32:10,018 INFO L225 Difference]: With dead ends: 31 [2022-11-25 17:32:10,018 INFO L226 Difference]: Without dead ends: 30 [2022-11-25 17:32:10,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:32:10,020 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 25 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:32:10,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 22 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:32:10,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-25 17:32:10,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-25 17:32:10,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 29 states have internal predecessors, (37), 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) [2022-11-25 17:32:10,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2022-11-25 17:32:10,032 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 9 [2022-11-25 17:32:10,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:32:10,032 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2022-11-25 17:32:10,032 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) [2022-11-25 17:32:10,033 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2022-11-25 17:32:10,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 17:32:10,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:32:10,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:32:10,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:32:10,037 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)] === [2022-11-25 17:32:10,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:10,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1268708783, now seen corresponding path program 1 times [2022-11-25 17:32:10,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:10,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105044992] [2022-11-25 17:32:10,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:10,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:10,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:32:10,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:10,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105044992] [2022-11-25 17:32:10,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105044992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:32:10,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:32:10,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:32:10,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398170016] [2022-11-25 17:32:10,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:32:10,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:32:10,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:32:10,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:32:10,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:32:10,126 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-11-25 17:32:10,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:32:10,158 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2022-11-25 17:32:10,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:32:10,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 [2022-11-25 17:32:10,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:32:10,161 INFO L225 Difference]: With dead ends: 49 [2022-11-25 17:32:10,161 INFO L226 Difference]: Without dead ends: 20 [2022-11-25 17:32:10,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:32:10,169 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:32:10,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 37 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:32:10,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-25 17:32:10,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-25 17:32:10,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 19 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:10,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2022-11-25 17:32:10,180 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 9 [2022-11-25 17:32:10,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:32:10,181 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2022-11-25 17:32:10,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-11-25 17:32:10,181 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2022-11-25 17:32:10,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 17:32:10,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:32:10,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:32:10,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:32:10,184 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)] === [2022-11-25 17:32:10,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:10,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1099740692, now seen corresponding path program 1 times [2022-11-25 17:32:10,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:10,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554926162] [2022-11-25 17:32:10,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:10,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:10,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:32:10,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:10,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554926162] [2022-11-25 17:32:10,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554926162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:32:10,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:32:10,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:32:10,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716899694] [2022-11-25 17:32:10,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:32:10,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:32:10,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:32:10,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:32:10,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:32:10,721 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:10,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:32:10,846 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-11-25 17:32:10,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:32:10,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-25 17:32:10,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:32:10,848 INFO L225 Difference]: With dead ends: 20 [2022-11-25 17:32:10,849 INFO L226 Difference]: Without dead ends: 19 [2022-11-25 17:32:10,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:32:10,852 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:32:10,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 13 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:32:10,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-25 17:32:10,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-25 17:32:10,859 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) [2022-11-25 17:32:10,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2022-11-25 17:32:10,860 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2022-11-25 17:32:10,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:32:10,861 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2022-11-25 17:32:10,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:10,861 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2022-11-25 17:32:10,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 17:32:10,862 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:32:10,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:32:10,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:32:10,863 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)] === [2022-11-25 17:32:10,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:10,863 INFO L85 PathProgramCache]: Analyzing trace with hash 267776979, now seen corresponding path program 1 times [2022-11-25 17:32:10,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:10,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618542749] [2022-11-25 17:32:10,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:10,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:11,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:32:11,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:11,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618542749] [2022-11-25 17:32:11,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618542749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:32:11,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:32:11,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:32:11,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844988156] [2022-11-25 17:32:11,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:32:11,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:32:11,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:32:11,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:32:11,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:32:11,961 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:12,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:32:12,046 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-11-25 17:32:12,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:32:12,047 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-25 17:32:12,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:32:12,048 INFO L225 Difference]: With dead ends: 22 [2022-11-25 17:32:12,048 INFO L226 Difference]: Without dead ends: 21 [2022-11-25 17:32:12,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:32:12,053 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:32:12,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 14 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:32:12,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-25 17:32:12,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2022-11-25 17:32:12,060 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) [2022-11-25 17:32:12,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-25 17:32:12,063 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2022-11-25 17:32:12,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:32:12,063 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-25 17:32:12,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:12,064 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-25 17:32:12,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 17:32:12,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:32:12,064 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:32:12,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:32:12,065 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)] === [2022-11-25 17:32:12,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:12,065 INFO L85 PathProgramCache]: Analyzing trace with hash -375243685, now seen corresponding path program 1 times [2022-11-25 17:32:12,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:12,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510548092] [2022-11-25 17:32:12,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:12,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:15,055 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:32:15,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:15,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510548092] [2022-11-25 17:32:15,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510548092] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:32:15,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378720521] [2022-11-25 17:32:15,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:15,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:32:15,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:32:15,062 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:32:15,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:32:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:15,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 79 conjunts are in the unsatisfiable core [2022-11-25 17:32:15,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:32:15,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:32:15,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:32:15,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:32:15,576 INFO L321 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2022-11-25 17:32:15,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 174 [2022-11-25 17:32:15,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 12 treesize of output 15 [2022-11-25 17:32:15,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 14 treesize of output 17 [2022-11-25 17:32:15,651 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 17:32:15,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 77 treesize of output 73 [2022-11-25 17:32:15,824 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 7 treesize of output 5 [2022-11-25 17:32:15,903 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 7 treesize of output 5 [2022-11-25 17:32:16,053 INFO L321 Elim1Store]: treesize reduction 125, result has 6.0 percent of original size [2022-11-25 17:32:16,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 107 treesize of output 50 [2022-11-25 17:32:16,067 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 17 treesize of output 13 [2022-11-25 17:32:17,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:32:17,437 INFO L321 Elim1Store]: treesize reduction 144, result has 31.1 percent of original size [2022-11-25 17:32:17,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 7533 treesize of output 6996 [2022-11-25 17:32:18,648 INFO L321 Elim1Store]: treesize reduction 145, result has 35.0 percent of original size [2022-11-25 17:32:18,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 6833 treesize of output 6881 [2022-11-25 17:32:20,216 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 7 treesize of output 5 [2022-11-25 17:32:20,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 9 [2022-11-25 17:32:20,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2022-11-25 17:32:20,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 76 [2022-11-25 17:32:20,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 84 [2022-11-25 17:32:21,340 INFO L321 Elim1Store]: treesize reduction 95, result has 30.7 percent of original size [2022-11-25 17:32:21,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 165 treesize of output 145 [2022-11-25 17:32:22,300 INFO L321 Elim1Store]: treesize reduction 60, result has 49.2 percent of original size [2022-11-25 17:32:22,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 170 treesize of output 163 [2022-11-25 17:32:24,303 INFO L321 Elim1Store]: treesize reduction 4, result has 91.8 percent of original size [2022-11-25 17:32:24,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 240 treesize of output 204 [2022-11-25 17:32:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 4 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:32:24,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:32:28,853 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:32:28,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378720521] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:32:28,853 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:32:28,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2022-11-25 17:32:28,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759311744] [2022-11-25 17:32:28,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:32:28,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-25 17:32:28,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:32:28,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-25 17:32:28,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=648, Unknown=9, NotChecked=0, Total=756 [2022-11-25 17:32:28,856 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 28 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 28 states have internal predecessors, (48), 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) [2022-11-25 17:32:32,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:42,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:49,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:32:49,696 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2022-11-25 17:32:49,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 17:32:49,697 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 28 states have internal predecessors, (48), 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 [2022-11-25 17:32:49,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:32:49,698 INFO L225 Difference]: With dead ends: 46 [2022-11-25 17:32:49,698 INFO L226 Difference]: Without dead ends: 45 [2022-11-25 17:32:49,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 21.0s TimeCoverageRelationStatistics Valid=517, Invalid=1618, Unknown=27, NotChecked=0, Total=2162 [2022-11-25 17:32:49,700 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 143 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 85 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:32:49,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 59 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 212 Invalid, 18 Unknown, 0 Unchecked, 4.9s Time] [2022-11-25 17:32:49,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-25 17:32:49,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-25 17:32:49,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.0227272727272727) internal successors, (45), 44 states have internal predecessors, (45), 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) [2022-11-25 17:32:49,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2022-11-25 17:32:49,709 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 17 [2022-11-25 17:32:49,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:32:49,709 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2022-11-25 17:32:49,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 28 states have internal predecessors, (48), 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) [2022-11-25 17:32:49,710 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2022-11-25 17:32:49,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-25 17:32:49,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:32:49,711 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1] [2022-11-25 17:32:49,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 17:32:49,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 17:32:49,918 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 17:32:49,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:49,919 INFO L85 PathProgramCache]: Analyzing trace with hash 901589834, now seen corresponding path program 2 times [2022-11-25 17:32:49,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:49,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249209560] [2022-11-25 17:32:49,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:49,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:54,456 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 29 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:32:54,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:54,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249209560] [2022-11-25 17:32:54,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249209560] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:32:54,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184447065] [2022-11-25 17:32:54,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:32:54,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:32:54,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:32:54,467 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:32:54,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:32:54,712 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:32:54,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:32:54,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-25 17:32:54,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:32:54,763 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-25 17:32:54,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2022-11-25 17:32:55,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2022-11-25 17:32:55,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-25 17:32:55,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:32:55,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 71 [2022-11-25 17:32:55,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 treesize of output 18 [2022-11-25 17:32:55,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:32:55,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2022-11-25 17:32:55,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 16 treesize of output 13 [2022-11-25 17:32:55,661 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 17 treesize of output 13 [2022-11-25 17:32:55,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-25 17:32:55,796 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-11-25 17:32:55,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:32:55,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2022-11-25 17:32:55,843 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 31 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 17:32:55,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:32:55,861 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_988 (Array Int Int)) (v_ArrVal_987 Int)) (or (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.offset| v_ArrVal_987)) |c_ULTIMATE.start_test_fun_~i_ref~0#1.base| v_ArrVal_988) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.offset|) 2147483650)) (not (<= (select (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~i_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~i_ref~0#1.offset|) v_ArrVal_987)))) is different from false [2022-11-25 17:32:55,913 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_986 (Array Int Int)) (v_ArrVal_988 (Array Int Int)) (v_ArrVal_987 Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~k_ref~0#1.base| v_ArrVal_986))) (or (< 0 (+ (select (select (store (store .cse0 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base| (store (select .cse0 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.offset| v_ArrVal_987)) |c_ULTIMATE.start_test_fun_~i_ref~0#1.base| v_ArrVal_988) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.offset|) 2147483650)) (not (<= (select (select .cse0 |c_ULTIMATE.start_test_fun_~i_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~i_ref~0#1.offset|) v_ArrVal_987))))) is different from false [2022-11-25 17:32:55,939 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_986 (Array Int Int)) (v_ArrVal_985 (Array Int Int)) (v_ArrVal_988 (Array Int Int)) (v_ArrVal_987 Int)) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~j_ref~0#1.base| v_ArrVal_985) |c_ULTIMATE.start_test_fun_~k_ref~0#1.base| v_ArrVal_986))) (or (not (<= (select (select .cse0 |c_ULTIMATE.start_test_fun_~i_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~i_ref~0#1.offset|) v_ArrVal_987)) (< 0 (+ (select (select (store (store .cse0 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base| (store (select .cse0 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.offset| v_ArrVal_987)) |c_ULTIMATE.start_test_fun_~i_ref~0#1.base| v_ArrVal_988) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.offset|) 2147483650))))) is different from false [2022-11-25 17:32:56,431 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:32:56,432 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 301 treesize of output 189 [2022-11-25 17:32:56,488 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:32:56,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1448 treesize of output 1434 [2022-11-25 17:32:56,527 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:32:56,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 500 treesize of output 473 [2022-11-25 17:32:56,568 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 114 treesize of output 106 [2022-11-25 17:32:56,602 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 106 treesize of output 102 [2022-11-25 17:32:56,636 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 854 treesize of output 800 [2022-11-25 17:32:57,099 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 6 treesize of output 4 [2022-11-25 17:32:57,128 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 11 treesize of output 9 [2022-11-25 17:32:57,787 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-25 17:32:58,092 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:32:58,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 372 treesize of output 418 [2022-11-25 17:33:03,767 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 2 proven. 18 refuted. 4 times theorem prover too weak. 21 trivial. 33 not checked. [2022-11-25 17:33:03,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184447065] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:33:03,768 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:33:03,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 9] total 28 [2022-11-25 17:33:03,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997170535] [2022-11-25 17:33:03,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:33:03,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-25 17:33:03,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:33:03,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-25 17:33:03,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=549, Unknown=10, NotChecked=150, Total=812 [2022-11-25 17:33:03,770 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand has 29 states, 28 states have (on average 3.607142857142857) internal successors, (101), 29 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:33:06,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:33:06,726 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2022-11-25 17:33:06,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:33:06,730 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.607142857142857) internal successors, (101), 29 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-25 17:33:06,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:33:06,731 INFO L225 Difference]: With dead ends: 45 [2022-11-25 17:33:06,731 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 17:33:06,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=212, Invalid=720, Unknown=10, NotChecked=180, Total=1122 [2022-11-25 17:33:06,733 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 32 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 26 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 52 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:33:06,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 63 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 122 Invalid, 8 Unknown, 52 Unchecked, 0.2s Time] [2022-11-25 17:33:06,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 17:33:06,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 17:33:06,734 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) [2022-11-25 17:33:06,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 17:33:06,734 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2022-11-25 17:33:06,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:33:06,735 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:33:06,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.607142857142857) internal successors, (101), 29 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:33:06,735 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 17:33:06,735 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 17:33:06,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-25 17:33:06,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-25 17:33:06,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-25 17:33:06,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-25 17:33:06,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:33:06,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 17:33:06,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 17:33:07,386 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 562) no Hoare annotation was computed. [2022-11-25 17:33:07,386 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 17:33:07,386 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 563) no Hoare annotation was computed. [2022-11-25 17:33:07,386 INFO L902 garLoopResultBuilder]: At program point L568(lines 567 569) the Hoare annotation is: true [2022-11-25 17:33:07,386 INFO L899 garLoopResultBuilder]: For program point L562(line 562) no Hoare annotation was computed. [2022-11-25 17:33:07,386 INFO L899 garLoopResultBuilder]: For program point L562-1(line 562) no Hoare annotation was computed. [2022-11-25 17:33:07,386 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 17:33:07,386 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 562) no Hoare annotation was computed. [2022-11-25 17:33:07,387 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 563) no Hoare annotation was computed. [2022-11-25 17:33:07,387 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 17:33:07,387 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 17:33:07,387 INFO L902 garLoopResultBuilder]: At program point L565(lines 547 566) the Hoare annotation is: true [2022-11-25 17:33:07,387 INFO L899 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2022-11-25 17:33:07,387 INFO L899 garLoopResultBuilder]: For program point L563-1(line 563) no Hoare annotation was computed. [2022-11-25 17:33:07,387 INFO L899 garLoopResultBuilder]: For program point L559-1(line 559) no Hoare annotation was computed. [2022-11-25 17:33:07,387 INFO L899 garLoopResultBuilder]: For program point L559-3(line 559) no Hoare annotation was computed. [2022-11-25 17:33:07,387 INFO L899 garLoopResultBuilder]: For program point L559-4(line 559) no Hoare annotation was computed. [2022-11-25 17:33:07,387 INFO L899 garLoopResultBuilder]: For program point L559-6(lines 559 564) no Hoare annotation was computed. [2022-11-25 17:33:07,388 INFO L895 garLoopResultBuilder]: At program point L559-8(lines 559 564) the Hoare annotation is: (let ((.cse13 (select (select |#memory_int| |ULTIMATE.start_test_fun_~k_ref~0#1.base|) |ULTIMATE.start_test_fun_~k_ref~0#1.offset|)) (.cse12 (select (select |#memory_int| |ULTIMATE.start_test_fun_~j_ref~0#1.base|) |ULTIMATE.start_test_fun_~j_ref~0#1.offset|)) (.cse15 (select (select |#memory_int| |ULTIMATE.start_test_fun_~i_ref~0#1.base|) |ULTIMATE.start_test_fun_~i_ref~0#1.offset|))) (let ((.cse0 (= |ULTIMATE.start_test_fun_~k_ref~0#1.offset| 0)) (.cse3 (= |ULTIMATE.start_test_fun_~tmp_ref~0#1.offset| 0)) (.cse6 (= |ULTIMATE.start_test_fun_~i_ref~0#1.offset| 0)) (.cse7 (= |ULTIMATE.start_test_fun_~j_ref~0#1.offset| 0)) (.cse8 (<= 0 (+ .cse15 2147483648))) (.cse1 (not (= |ULTIMATE.start_test_fun_~j_ref~0#1.base| |ULTIMATE.start_test_fun_~i_ref~0#1.base|))) (.cse2 (not (= |ULTIMATE.start_test_fun_~i_ref~0#1.base| |ULTIMATE.start_test_fun_~tmp_ref~0#1.base|))) (.cse4 (not (= |ULTIMATE.start_test_fun_~k_ref~0#1.base| |ULTIMATE.start_test_fun_~tmp_ref~0#1.base|))) (.cse5 (<= 0 (+ 2147483647 .cse12))) (.cse9 (<= .cse13 2147483647)) (.cse10 (not (= |ULTIMATE.start_test_fun_~k_ref~0#1.base| |ULTIMATE.start_test_fun_~i_ref~0#1.base|))) (.cse11 (not (= |ULTIMATE.start_test_fun_~k_ref~0#1.base| |ULTIMATE.start_test_fun_~j_ref~0#1.base|))) (.cse14 (not (= |ULTIMATE.start_test_fun_~j_ref~0#1.base| |ULTIMATE.start_test_fun_~tmp_ref~0#1.base|)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (<= (+ 1 (select (select |#memory_int| |ULTIMATE.start_test_fun_~tmp_ref~0#1.base|) |ULTIMATE.start_test_fun_~tmp_ref~0#1.offset|)) .cse12)) (and (<= 0 (+ .cse12 2147483648)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse6 (or (= .cse13 0) (and (= .cse13 |ULTIMATE.start_test_fun_~k#1|) (<= |ULTIMATE.start_test_fun_~k#1| 2147483647))) .cse7 .cse8 .cse10 .cse11 .cse14) (and .cse1 .cse2 .cse4 .cse5 (<= 0 (+ 2147483647 .cse15)) .cse9 .cse10 .cse11 .cse14)))) [2022-11-25 17:33:07,388 INFO L899 garLoopResultBuilder]: For program point L559-9(lines 559 564) no Hoare annotation was computed. [2022-11-25 17:33:07,391 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-11-25 17:33:07,393 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:33:07,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:33:07 BoogieIcfgContainer [2022-11-25 17:33:07,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:33:07,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:33:07,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:33:07,415 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:33:07,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:32:06" (3/4) ... [2022-11-25 17:33:07,419 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:33:07,429 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-25 17:33:07,429 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 17:33:07,429 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 17:33:07,430 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:33:07,464 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:33:07,464 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:33:07,465 INFO L158 Benchmark]: Toolchain (without parser) took 62303.32ms. Allocated memory was 155.2MB in the beginning and 408.9MB in the end (delta: 253.8MB). Free memory was 111.4MB in the beginning and 175.3MB in the end (delta: -63.9MB). Peak memory consumption was 193.0MB. Max. memory is 16.1GB. [2022-11-25 17:33:07,465 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 155.2MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:33:07,466 INFO L158 Benchmark]: CACSL2BoogieTranslator took 476.57ms. Allocated memory is still 155.2MB. Free memory was 111.4MB in the beginning and 95.2MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 17:33:07,466 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.37ms. Allocated memory is still 155.2MB. Free memory was 95.2MB in the beginning and 93.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:33:07,466 INFO L158 Benchmark]: Boogie Preprocessor took 52.36ms. Allocated memory is still 155.2MB. Free memory was 93.6MB in the beginning and 92.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:33:07,467 INFO L158 Benchmark]: RCFGBuilder took 493.15ms. Allocated memory is still 155.2MB. Free memory was 92.0MB in the beginning and 78.4MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:33:07,467 INFO L158 Benchmark]: TraceAbstraction took 61179.80ms. Allocated memory was 155.2MB in the beginning and 408.9MB in the end (delta: 253.8MB). Free memory was 77.9MB in the beginning and 178.5MB in the end (delta: -100.6MB). Peak memory consumption was 155.2MB. Max. memory is 16.1GB. [2022-11-25 17:33:07,467 INFO L158 Benchmark]: Witness Printer took 50.03ms. Allocated memory is still 408.9MB. Free memory was 178.5MB in the beginning and 175.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:33:07,469 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 155.2MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 476.57ms. Allocated memory is still 155.2MB. Free memory was 111.4MB in the beginning and 95.2MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.37ms. Allocated memory is still 155.2MB. Free memory was 95.2MB in the beginning and 93.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.36ms. Allocated memory is still 155.2MB. Free memory was 93.6MB in the beginning and 92.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 493.15ms. Allocated memory is still 155.2MB. Free memory was 92.0MB in the beginning and 78.4MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 61179.80ms. Allocated memory was 155.2MB in the beginning and 408.9MB in the end (delta: 253.8MB). Free memory was 77.9MB in the beginning and 178.5MB in the end (delta: -100.6MB). Peak memory consumption was 155.2MB. Max. memory is 16.1GB. * Witness Printer took 50.03ms. Allocated memory is still 408.9MB. Free memory was 178.5MB in the beginning and 175.3MB 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: 562]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 562]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 563]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 563]: 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, 20 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 61.0s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 24.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 26 mSolverCounterUnknown, 240 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 265 SdHoareTripleChecker+Invalid, 5.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 52 IncrementalHoareTripleChecker+Unchecked, 206 mSDsCounter, 128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 464 IncrementalHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 128 mSolverCounterUnsat, 59 mSDtfsCounter, 464 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 208 GetRequests, 103 SyntacticMatches, 3 SemanticMatches, 102 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 25.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=6, InterpolantAutomatonStates: 58, 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 12 NumberOfFragments, 198 HoareAnnotationTreeSize, 3 FomulaSimplifications, 50 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1252 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 34.3s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 219 ConstructedInterpolants, 38 QuantifiedInterpolants, 20151 SizeOfPredicates, 44 NumberOfNonLiveVariables, 706 ConjunctsInSsa, 124 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 99/252 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: 559]: Loop Invariant Derived loop invariant: (((((((((((((k_ref == 0 && !(j_ref == i_ref)) && !(i_ref == tmp_ref)) && tmp_ref == 0) && !(k_ref == tmp_ref)) && 0 <= 2147483647 + unknown-#memory_int-unknown[j_ref][j_ref]) && i_ref == 0) && j_ref == 0) && 0 <= unknown-#memory_int-unknown[i_ref][i_ref] + 2147483648) && unknown-#memory_int-unknown[k_ref][k_ref] <= 2147483647) && !(k_ref == i_ref)) && !(k_ref == j_ref)) && 1 + unknown-#memory_int-unknown[tmp_ref][tmp_ref] <= unknown-#memory_int-unknown[j_ref][j_ref]) || ((((((((((((0 <= unknown-#memory_int-unknown[j_ref][j_ref] + 2147483648 && k_ref == 0) && !(j_ref == i_ref)) && !(i_ref == tmp_ref)) && tmp_ref == 0) && !(k_ref == tmp_ref)) && i_ref == 0) && (unknown-#memory_int-unknown[k_ref][k_ref] == 0 || (unknown-#memory_int-unknown[k_ref][k_ref] == k && k <= 2147483647))) && j_ref == 0) && 0 <= unknown-#memory_int-unknown[i_ref][i_ref] + 2147483648) && !(k_ref == i_ref)) && !(k_ref == j_ref)) && !(j_ref == tmp_ref))) || ((((((((!(j_ref == i_ref) && !(i_ref == tmp_ref)) && !(k_ref == tmp_ref)) && 0 <= 2147483647 + unknown-#memory_int-unknown[j_ref][j_ref]) && 0 <= 2147483647 + unknown-#memory_int-unknown[i_ref][i_ref]) && unknown-#memory_int-unknown[k_ref][k_ref] <= 2147483647) && !(k_ref == i_ref)) && !(k_ref == j_ref)) && !(j_ref == tmp_ref)) - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-25 17:33:07,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a361c61f-14b4-4f6c-aed1-28173a1e0dd6/bin/uautomizer-ZsLfNo2U6R/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