./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/dirname-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/dirname-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --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 d8688e7f79ed82546c684653a3176376ee7ee300eb5fd6039eaf31b6bcdf87ca --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:01:08,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:01:08,810 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 07:01:08,815 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:01:08,816 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:01:08,838 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:01:08,838 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:01:08,839 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:01:08,840 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:01:08,840 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:01:08,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:01:08,841 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:01:08,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:01:08,843 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:01:08,843 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:01:08,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:01:08,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 07:01:08,845 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 07:01:08,846 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:01:08,846 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 07:01:08,847 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:01:08,847 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 07:01:08,848 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 07:01:08,848 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 07:01:08,849 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 07:01:08,849 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:01:08,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:01:08,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:01:08,851 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:01:08,851 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:01:08,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:01:08,852 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:01:08,852 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:01:08,853 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 07:01:08,853 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 07:01:08,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 07:01:08,853 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:01:08,853 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:01:08,854 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 07:01:08,854 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:01:08,854 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:01:08,854 INFO L153 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_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8688e7f79ed82546c684653a3176376ee7ee300eb5fd6039eaf31b6bcdf87ca [2023-11-29 07:01:09,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:01:09,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:01:09,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:01:09,130 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:01:09,130 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:01:09,132 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/busybox-1.22.0/dirname-1.i [2023-11-29 07:01:11,948 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:01:12,203 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:01:12,204 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/sv-benchmarks/c/busybox-1.22.0/dirname-1.i [2023-11-29 07:01:12,224 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/data/6127589e9/e276f86ca4234da99e71f718d9d05a35/FLAG833804254 [2023-11-29 07:01:12,237 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/data/6127589e9/e276f86ca4234da99e71f718d9d05a35 [2023-11-29 07:01:12,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:01:12,241 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:01:12,242 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:01:12,242 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:01:12,248 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:01:12,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:01:12" (1/1) ... [2023-11-29 07:01:12,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fcd9d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:12, skipping insertion in model container [2023-11-29 07:01:12,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:01:12" (1/1) ... [2023-11-29 07:01:12,302 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:01:12,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:01:12,892 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:01:12,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:01:13,031 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 07:01:13,032 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 07:01:13,050 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:01:13,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:13 WrapperNode [2023-11-29 07:01:13,051 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:01:13,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:01:13,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:01:13,053 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:01:13,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:13" (1/1) ... [2023-11-29 07:01:13,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:13" (1/1) ... [2023-11-29 07:01:13,126 INFO L138 Inliner]: procedures = 348, calls = 118, calls flagged for inlining = 9, calls inlined = 7, statements flattened = 282 [2023-11-29 07:01:13,127 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:01:13,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:01:13,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:01:13,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:01:13,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:13" (1/1) ... [2023-11-29 07:01:13,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:13" (1/1) ... [2023-11-29 07:01:13,141 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:13" (1/1) ... [2023-11-29 07:01:13,165 INFO L175 MemorySlicer]: Split 55 memory accesses to 15 slices as follows [2, 3, 6, 3, 3, 4, 4, 4, 4, 3, 3, 1, 2, 11, 2]. 20 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [2, 3, 0, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0, 0]. The 11 writes are split as follows [0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 3, 1, 2, 2, 1]. [2023-11-29 07:01:13,165 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:13" (1/1) ... [2023-11-29 07:01:13,166 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:13" (1/1) ... [2023-11-29 07:01:13,181 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:13" (1/1) ... [2023-11-29 07:01:13,186 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:13" (1/1) ... [2023-11-29 07:01:13,191 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:13" (1/1) ... [2023-11-29 07:01:13,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:13" (1/1) ... [2023-11-29 07:01:13,205 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:01:13,206 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:01:13,206 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:01:13,206 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:01:13,207 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:13" (1/1) ... [2023-11-29 07:01:13,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:01:13,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:13,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:01:13,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:01:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 07:01:13,289 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 07:01:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 07:01:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 07:01:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 07:01:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 07:01:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 07:01:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-29 07:01:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-29 07:01:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-29 07:01:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-29 07:01:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-29 07:01:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-29 07:01:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-29 07:01:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-29 07:01:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-29 07:01:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-29 07:01:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 07:01:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 07:01:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 07:01:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 07:01:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 07:01:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 07:01:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 07:01:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 07:01:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-29 07:01:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-29 07:01:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-29 07:01:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-29 07:01:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-29 07:01:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-29 07:01:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-29 07:01:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-29 07:01:13,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 07:01:13,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 07:01:13,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 07:01:13,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 07:01:13,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 07:01:13,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 07:01:13,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 07:01:13,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-29 07:01:13,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-29 07:01:13,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-29 07:01:13,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-29 07:01:13,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-29 07:01:13,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-29 07:01:13,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-29 07:01:13,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-29 07:01:13,297 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-29 07:01:13,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 07:01:13,297 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-29 07:01:13,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 07:01:13,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 07:01:13,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 07:01:13,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 07:01:13,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 07:01:13,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 07:01:13,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-29 07:01:13,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-29 07:01:13,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-29 07:01:13,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-29 07:01:13,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-29 07:01:13,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-29 07:01:13,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-29 07:01:13,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-29 07:01:13,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-29 07:01:13,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-29 07:01:13,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 07:01:13,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 07:01:13,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 07:01:13,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 07:01:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 07:01:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 07:01:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 07:01:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-29 07:01:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-29 07:01:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-29 07:01:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-29 07:01:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-29 07:01:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-29 07:01:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-29 07:01:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-29 07:01:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:01:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:01:13,553 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:01:13,556 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:01:13,891 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:01:13,936 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:01:13,936 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-29 07:01:13,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:01:13 BoogieIcfgContainer [2023-11-29 07:01:13,937 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:01:13,939 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:01:13,939 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:01:13,943 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:01:13,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:01:12" (1/3) ... [2023-11-29 07:01:13,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd3c2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:01:13, skipping insertion in model container [2023-11-29 07:01:13,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:13" (2/3) ... [2023-11-29 07:01:13,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd3c2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:01:13, skipping insertion in model container [2023-11-29 07:01:13,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:01:13" (3/3) ... [2023-11-29 07:01:13,945 INFO L112 eAbstractionObserver]: Analyzing ICFG dirname-1.i [2023-11-29 07:01:13,965 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:01:13,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-29 07:01:14,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:01:14,023 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=LoopHeads, 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;@68c3771f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:01:14,023 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-29 07:01:14,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 56 states have (on average 1.8571428571428572) internal successors, (104), 80 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:14,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 07:01:14,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:14,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 07:01:14,034 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:14,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:14,039 INFO L85 PathProgramCache]: Analyzing trace with hash 248516, now seen corresponding path program 1 times [2023-11-29 07:01:14,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:14,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196059764] [2023-11-29 07:01:14,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:14,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:14,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:01:14,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:14,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196059764] [2023-11-29 07:01:14,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196059764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:14,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:14,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 07:01:14,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280711559] [2023-11-29 07:01:14,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:14,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:01:14,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:14,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:01:14,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:14,373 INFO L87 Difference]: Start difference. First operand has 83 states, 56 states have (on average 1.8571428571428572) internal successors, (104), 80 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-29 07:01:14,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:14,448 INFO L93 Difference]: Finished difference Result 165 states and 212 transitions. [2023-11-29 07:01:14,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:01:14,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2023-11-29 07:01:14,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:14,460 INFO L225 Difference]: With dead ends: 165 [2023-11-29 07:01:14,460 INFO L226 Difference]: Without dead ends: 84 [2023-11-29 07:01:14,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:14,467 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 1 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:14,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 176 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:14,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-29 07:01:14,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-29 07:01:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 81 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:14,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 99 transitions. [2023-11-29 07:01:14,512 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 99 transitions. Word has length 3 [2023-11-29 07:01:14,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:14,513 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 99 transitions. [2023-11-29 07:01:14,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-29 07:01:14,513 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 99 transitions. [2023-11-29 07:01:14,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 07:01:14,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:14,514 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-29 07:01:14,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 07:01:14,514 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:14,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:14,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1186341964, now seen corresponding path program 1 times [2023-11-29 07:01:14,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:14,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054586097] [2023-11-29 07:01:14,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:14,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:14,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:01:14,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:14,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054586097] [2023-11-29 07:01:14,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054586097] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:01:14,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644967228] [2023-11-29 07:01:14,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:14,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:14,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:14,643 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:14,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 07:01:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:14,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:01:14,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:14,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:01:14,869 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:14,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644967228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:14,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:01:14,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-11-29 07:01:14,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092366041] [2023-11-29 07:01:14,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:14,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:01:14,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:14,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:01:14,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:01:14,873 INFO L87 Difference]: Start difference. First operand 84 states and 99 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:01:14,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:14,916 INFO L93 Difference]: Finished difference Result 84 states and 99 transitions. [2023-11-29 07:01:14,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:01:14,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 07:01:14,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:14,918 INFO L225 Difference]: With dead ends: 84 [2023-11-29 07:01:14,919 INFO L226 Difference]: Without dead ends: 83 [2023-11-29 07:01:14,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:01:14,921 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 5 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:14,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 171 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:14,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-29 07:01:14,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2023-11-29 07:01:14,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 58 states have (on average 1.6551724137931034) internal successors, (96), 80 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:14,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 98 transitions. [2023-11-29 07:01:14,933 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 98 transitions. Word has length 6 [2023-11-29 07:01:14,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:14,933 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 98 transitions. [2023-11-29 07:01:14,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:01:14,934 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 98 transitions. [2023-11-29 07:01:14,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 07:01:14,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:14,934 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-29 07:01:14,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 07:01:15,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:15,136 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:15,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:15,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1878104833, now seen corresponding path program 1 times [2023-11-29 07:01:15,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:15,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536325667] [2023-11-29 07:01:15,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:15,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:15,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:01:15,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:15,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536325667] [2023-11-29 07:01:15,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536325667] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:15,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:15,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:01:15,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069688394] [2023-11-29 07:01:15,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:15,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:01:15,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:15,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:01:15,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:15,213 INFO L87 Difference]: Start difference. First operand 83 states and 98 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:01:15,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:15,244 INFO L93 Difference]: Finished difference Result 83 states and 98 transitions. [2023-11-29 07:01:15,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:01:15,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 07:01:15,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:15,247 INFO L225 Difference]: With dead ends: 83 [2023-11-29 07:01:15,247 INFO L226 Difference]: Without dead ends: 82 [2023-11-29 07:01:15,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:15,249 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:15,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:15,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-11-29 07:01:15,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2023-11-29 07:01:15,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 56 states have (on average 1.6607142857142858) internal successors, (93), 77 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:15,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 95 transitions. [2023-11-29 07:01:15,260 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 95 transitions. Word has length 7 [2023-11-29 07:01:15,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:15,260 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 95 transitions. [2023-11-29 07:01:15,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:01:15,260 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 95 transitions. [2023-11-29 07:01:15,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 07:01:15,261 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:15,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:15,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 07:01:15,262 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:15,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:15,262 INFO L85 PathProgramCache]: Analyzing trace with hash 521219427, now seen corresponding path program 1 times [2023-11-29 07:01:15,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:15,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739729604] [2023-11-29 07:01:15,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:15,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:15,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 07:01:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:01:15,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:15,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739729604] [2023-11-29 07:01:15,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739729604] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:01:15,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151246310] [2023-11-29 07:01:15,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:15,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:15,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:15,353 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:15,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 07:01:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:15,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 07:01:15,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:01:15,546 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:15,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151246310] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:15,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:01:15,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-29 07:01:15,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386828233] [2023-11-29 07:01:15,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:15,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:01:15,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:15,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:01:15,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:01:15,549 INFO L87 Difference]: Start difference. First operand 80 states and 95 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:15,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:15,589 INFO L93 Difference]: Finished difference Result 80 states and 95 transitions. [2023-11-29 07:01:15,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:01:15,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-11-29 07:01:15,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:15,591 INFO L225 Difference]: With dead ends: 80 [2023-11-29 07:01:15,592 INFO L226 Difference]: Without dead ends: 78 [2023-11-29 07:01:15,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:01:15,593 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 81 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:15,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 86 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:15,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-29 07:01:15,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-29 07:01:15,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 56 states have (on average 1.625) internal successors, (91), 75 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:15,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 93 transitions. [2023-11-29 07:01:15,603 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 93 transitions. Word has length 12 [2023-11-29 07:01:15,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:15,603 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 93 transitions. [2023-11-29 07:01:15,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:15,603 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 93 transitions. [2023-11-29 07:01:15,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 07:01:15,604 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:15,604 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:15,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 07:01:15,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:15,808 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:15,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:15,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1022066885, now seen corresponding path program 1 times [2023-11-29 07:01:15,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:15,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417921612] [2023-11-29 07:01:15,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:15,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:15,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 07:01:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:15,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:01:15,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:15,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417921612] [2023-11-29 07:01:15,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417921612] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:01:15,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111084894] [2023-11-29 07:01:15,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:15,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:15,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:15,912 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:15,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 07:01:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:16,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:01:16,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:16,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:01:16,100 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:01:16,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:01:16,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111084894] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:01:16,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:01:16,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-11-29 07:01:16,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222961228] [2023-11-29 07:01:16,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:01:16,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:01:16,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:16,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:01:16,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:01:16,132 INFO L87 Difference]: Start difference. First operand 78 states and 93 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:16,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:16,183 INFO L93 Difference]: Finished difference Result 160 states and 192 transitions. [2023-11-29 07:01:16,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:01:16,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2023-11-29 07:01:16,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:16,185 INFO L225 Difference]: With dead ends: 160 [2023-11-29 07:01:16,186 INFO L226 Difference]: Without dead ends: 87 [2023-11-29 07:01:16,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:01:16,187 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 4 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:16,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 251 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:16,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-29 07:01:16,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-11-29 07:01:16,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.5384615384615385) internal successors, (100), 84 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:16,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 102 transitions. [2023-11-29 07:01:16,197 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 102 transitions. Word has length 13 [2023-11-29 07:01:16,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:16,197 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 102 transitions. [2023-11-29 07:01:16,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:16,198 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 102 transitions. [2023-11-29 07:01:16,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 07:01:16,198 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:16,198 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:16,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 07:01:16,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:16,399 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:16,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:16,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1305823787, now seen corresponding path program 2 times [2023-11-29 07:01:16,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:16,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611488842] [2023-11-29 07:01:16,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:16,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:16,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 07:01:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:16,525 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:01:16,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:16,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611488842] [2023-11-29 07:01:16,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611488842] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:01:16,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969131313] [2023-11-29 07:01:16,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:01:16,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:16,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:16,527 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:16,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 07:01:16,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 07:01:16,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:01:16,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:01:16,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:16,734 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 07:01:16,735 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:16,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969131313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:16,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:01:16,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-29 07:01:16,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679348017] [2023-11-29 07:01:16,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:16,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:01:16,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:16,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:01:16,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:01:16,737 INFO L87 Difference]: Start difference. First operand 87 states and 102 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:16,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:16,814 INFO L93 Difference]: Finished difference Result 87 states and 102 transitions. [2023-11-29 07:01:16,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:01:16,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-11-29 07:01:16,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:16,815 INFO L225 Difference]: With dead ends: 87 [2023-11-29 07:01:16,816 INFO L226 Difference]: Without dead ends: 85 [2023-11-29 07:01:16,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:01:16,817 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 80 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:16,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 229 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:16,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-29 07:01:16,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2023-11-29 07:01:16,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 65 states have (on average 1.5076923076923077) internal successors, (98), 82 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:16,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 100 transitions. [2023-11-29 07:01:16,825 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 100 transitions. Word has length 22 [2023-11-29 07:01:16,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:16,826 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 100 transitions. [2023-11-29 07:01:16,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:16,826 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 100 transitions. [2023-11-29 07:01:16,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 07:01:16,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:16,827 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:16,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 07:01:17,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:17,028 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:17,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:17,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1561437824, now seen corresponding path program 1 times [2023-11-29 07:01:17,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:17,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669960619] [2023-11-29 07:01:17,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:17,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:17,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 07:01:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:17,173 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 07:01:17,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:17,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669960619] [2023-11-29 07:01:17,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669960619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:17,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:17,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:01:17,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637061532] [2023-11-29 07:01:17,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:17,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:01:17,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:17,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:01:17,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:17,176 INFO L87 Difference]: Start difference. First operand 85 states and 100 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:17,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:17,211 INFO L93 Difference]: Finished difference Result 149 states and 181 transitions. [2023-11-29 07:01:17,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:01:17,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2023-11-29 07:01:17,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:17,213 INFO L225 Difference]: With dead ends: 149 [2023-11-29 07:01:17,213 INFO L226 Difference]: Without dead ends: 88 [2023-11-29 07:01:17,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:17,215 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 1 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:17,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 161 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:17,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-29 07:01:17,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-29 07:01:17,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 68 states have (on average 1.4852941176470589) internal successors, (101), 85 states have internal predecessors, (101), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:17,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 103 transitions. [2023-11-29 07:01:17,225 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 103 transitions. Word has length 27 [2023-11-29 07:01:17,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:17,225 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 103 transitions. [2023-11-29 07:01:17,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:17,226 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 103 transitions. [2023-11-29 07:01:17,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 07:01:17,227 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:17,227 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:17,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 07:01:17,227 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:17,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:17,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1996654426, now seen corresponding path program 1 times [2023-11-29 07:01:17,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:17,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464751250] [2023-11-29 07:01:17,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:17,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:17,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 07:01:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:17,383 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 07:01:17,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:17,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464751250] [2023-11-29 07:01:17,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464751250] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:01:17,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452586555] [2023-11-29 07:01:17,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:17,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:17,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:17,385 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:17,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 07:01:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:17,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:01:17,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:17,689 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 07:01:17,689 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:01:17,796 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 07:01:17,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452586555] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:01:17,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:01:17,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 7] total 14 [2023-11-29 07:01:17,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287894522] [2023-11-29 07:01:17,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:01:17,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:01:17,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:17,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:01:17,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:01:17,799 INFO L87 Difference]: Start difference. First operand 88 states and 103 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:17,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:17,921 INFO L93 Difference]: Finished difference Result 179 states and 215 transitions. [2023-11-29 07:01:17,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:01:17,922 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2023-11-29 07:01:17,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:17,923 INFO L225 Difference]: With dead ends: 179 [2023-11-29 07:01:17,923 INFO L226 Difference]: Without dead ends: 105 [2023-11-29 07:01:17,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:01:17,924 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 7 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:17,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 302 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:17,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-29 07:01:17,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-11-29 07:01:17,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 86 states have (on average 1.372093023255814) internal successors, (118), 102 states have internal predecessors, (118), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:17,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 120 transitions. [2023-11-29 07:01:17,934 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 120 transitions. Word has length 30 [2023-11-29 07:01:17,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:17,934 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 120 transitions. [2023-11-29 07:01:17,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:17,935 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 120 transitions. [2023-11-29 07:01:17,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 07:01:17,936 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:17,937 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:17,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 07:01:18,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:18,137 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:18,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:18,137 INFO L85 PathProgramCache]: Analyzing trace with hash 736535077, now seen corresponding path program 1 times [2023-11-29 07:01:18,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:18,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096314952] [2023-11-29 07:01:18,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:18,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:18,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 07:01:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:18,327 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 07:01:18,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:18,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096314952] [2023-11-29 07:01:18,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096314952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:18,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:18,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:01:18,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872742770] [2023-11-29 07:01:18,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:18,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:01:18,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:18,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:01:18,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:18,330 INFO L87 Difference]: Start difference. First operand 105 states and 120 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:18,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:18,352 INFO L93 Difference]: Finished difference Result 127 states and 148 transitions. [2023-11-29 07:01:18,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:01:18,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2023-11-29 07:01:18,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:18,354 INFO L225 Difference]: With dead ends: 127 [2023-11-29 07:01:18,354 INFO L226 Difference]: Without dead ends: 82 [2023-11-29 07:01:18,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:18,355 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 10 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:18,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 98 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:18,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-11-29 07:01:18,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2023-11-29 07:01:18,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 75 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:18,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2023-11-29 07:01:18,363 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 49 [2023-11-29 07:01:18,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:18,363 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2023-11-29 07:01:18,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:18,364 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2023-11-29 07:01:18,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 07:01:18,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:18,365 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:18,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 07:01:18,366 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:18,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:18,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1978936188, now seen corresponding path program 1 times [2023-11-29 07:01:18,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:18,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544215963] [2023-11-29 07:01:18,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:18,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:18,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 07:01:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:18,501 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-29 07:01:18,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:18,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544215963] [2023-11-29 07:01:18,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544215963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:18,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:18,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:01:18,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639501455] [2023-11-29 07:01:18,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:18,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:01:18,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:18,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:01:18,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:18,503 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:18,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:18,544 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2023-11-29 07:01:18,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:01:18,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2023-11-29 07:01:18,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:18,546 INFO L225 Difference]: With dead ends: 92 [2023-11-29 07:01:18,546 INFO L226 Difference]: Without dead ends: 90 [2023-11-29 07:01:18,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:18,547 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 3 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:18,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 88 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:18,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-29 07:01:18,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2023-11-29 07:01:18,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 79 states have (on average 1.2278481012658229) internal successors, (97), 85 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:18,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2023-11-29 07:01:18,554 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 49 [2023-11-29 07:01:18,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:18,555 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2023-11-29 07:01:18,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:18,555 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2023-11-29 07:01:18,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 07:01:18,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:18,557 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:18,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 07:01:18,557 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:18,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:18,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1978937917, now seen corresponding path program 1 times [2023-11-29 07:01:18,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:18,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775542243] [2023-11-29 07:01:18,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:18,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:18,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 07:01:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:18,698 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-29 07:01:18,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:18,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775542243] [2023-11-29 07:01:18,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775542243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:18,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:18,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:01:18,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160536072] [2023-11-29 07:01:18,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:18,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:01:18,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:18,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:01:18,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:18,701 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:18,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:18,727 INFO L93 Difference]: Finished difference Result 88 states and 99 transitions. [2023-11-29 07:01:18,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:01:18,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2023-11-29 07:01:18,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:18,729 INFO L225 Difference]: With dead ends: 88 [2023-11-29 07:01:18,729 INFO L226 Difference]: Without dead ends: 87 [2023-11-29 07:01:18,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:18,730 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:18,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:18,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-29 07:01:18,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2023-11-29 07:01:18,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 75 states have (on average 1.2133333333333334) internal successors, (91), 80 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:18,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2023-11-29 07:01:18,736 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 49 [2023-11-29 07:01:18,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:18,737 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2023-11-29 07:01:18,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:18,737 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2023-11-29 07:01:18,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 07:01:18,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:18,738 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:18,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 07:01:18,739 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:18,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:18,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1222212591, now seen corresponding path program 1 times [2023-11-29 07:01:18,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:18,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558233945] [2023-11-29 07:01:18,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:18,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:18,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 07:01:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:18,874 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 07:01:18,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:18,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558233945] [2023-11-29 07:01:18,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558233945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:18,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:18,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:01:18,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923188758] [2023-11-29 07:01:18,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:18,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:01:18,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:18,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:01:18,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:18,876 INFO L87 Difference]: Start difference. First operand 83 states and 93 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:18,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:18,905 INFO L93 Difference]: Finished difference Result 94 states and 105 transitions. [2023-11-29 07:01:18,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:01:18,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2023-11-29 07:01:18,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:18,906 INFO L225 Difference]: With dead ends: 94 [2023-11-29 07:01:18,906 INFO L226 Difference]: Without dead ends: 86 [2023-11-29 07:01:18,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:18,907 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 1 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:18,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 91 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:18,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-29 07:01:18,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-29 07:01:18,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 78 states have (on average 1.205128205128205) internal successors, (94), 83 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:18,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 96 transitions. [2023-11-29 07:01:18,914 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 96 transitions. Word has length 51 [2023-11-29 07:01:18,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:18,915 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 96 transitions. [2023-11-29 07:01:18,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:18,915 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2023-11-29 07:01:18,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 07:01:18,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:18,916 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:18,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 07:01:18,916 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:18,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:18,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1797654317, now seen corresponding path program 1 times [2023-11-29 07:01:18,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:18,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599034386] [2023-11-29 07:01:18,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:18,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:19,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 07:01:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:19,051 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 07:01:19,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:19,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599034386] [2023-11-29 07:01:19,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599034386] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:01:19,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706944335] [2023-11-29 07:01:19,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:19,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:19,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:19,056 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:19,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 07:01:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:19,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:01:19,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:19,371 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 07:01:19,371 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:19,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706944335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:19,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:01:19,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-29 07:01:19,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470469761] [2023-11-29 07:01:19,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:19,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:01:19,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:19,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:01:19,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:01:19,374 INFO L87 Difference]: Start difference. First operand 86 states and 96 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:19,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:19,400 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions. [2023-11-29 07:01:19,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:01:19,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2023-11-29 07:01:19,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:19,401 INFO L225 Difference]: With dead ends: 86 [2023-11-29 07:01:19,401 INFO L226 Difference]: Without dead ends: 85 [2023-11-29 07:01:19,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:01:19,402 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 5 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:19,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 88 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:19,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-29 07:01:19,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2023-11-29 07:01:19,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 78 states have (on average 1.1923076923076923) internal successors, (93), 82 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:19,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2023-11-29 07:01:19,408 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 54 [2023-11-29 07:01:19,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:19,409 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2023-11-29 07:01:19,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:19,409 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2023-11-29 07:01:19,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 07:01:19,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:19,410 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:19,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 07:01:19,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:19,616 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:19,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:19,616 INFO L85 PathProgramCache]: Analyzing trace with hash -107290802, now seen corresponding path program 1 times [2023-11-29 07:01:19,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:19,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594686231] [2023-11-29 07:01:19,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:19,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:19,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 07:01:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:19,718 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-29 07:01:19,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:19,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594686231] [2023-11-29 07:01:19,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594686231] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:19,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:19,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:01:19,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574138155] [2023-11-29 07:01:19,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:19,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:01:19,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:19,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:01:19,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:19,721 INFO L87 Difference]: Start difference. First operand 85 states and 95 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:19,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:19,768 INFO L93 Difference]: Finished difference Result 85 states and 95 transitions. [2023-11-29 07:01:19,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:01:19,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2023-11-29 07:01:19,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:19,770 INFO L225 Difference]: With dead ends: 85 [2023-11-29 07:01:19,770 INFO L226 Difference]: Without dead ends: 84 [2023-11-29 07:01:19,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:19,771 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:19,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:19,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-29 07:01:19,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2023-11-29 07:01:19,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 79 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:19,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2023-11-29 07:01:19,778 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 55 [2023-11-29 07:01:19,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:19,778 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2023-11-29 07:01:19,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:19,778 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2023-11-29 07:01:19,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 07:01:19,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:19,779 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:19,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 07:01:19,779 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:19,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:19,780 INFO L85 PathProgramCache]: Analyzing trace with hash 968933051, now seen corresponding path program 1 times [2023-11-29 07:01:19,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:19,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057433838] [2023-11-29 07:01:19,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:19,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:19,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 07:01:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:19,915 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 07:01:19,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:19,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057433838] [2023-11-29 07:01:19,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057433838] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:01:19,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919536215] [2023-11-29 07:01:19,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:19,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:19,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:19,917 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:19,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 07:01:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:20,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 07:01:20,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:20,231 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-29 07:01:20,231 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:20,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919536215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:20,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:01:20,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-29 07:01:20,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72512174] [2023-11-29 07:01:20,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:20,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:01:20,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:20,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:01:20,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:01:20,233 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:20,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:20,253 INFO L93 Difference]: Finished difference Result 82 states and 92 transitions. [2023-11-29 07:01:20,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:01:20,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2023-11-29 07:01:20,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:20,254 INFO L225 Difference]: With dead ends: 82 [2023-11-29 07:01:20,254 INFO L226 Difference]: Without dead ends: 81 [2023-11-29 07:01:20,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:01:20,255 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 2 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:20,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 86 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:20,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-29 07:01:20,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2023-11-29 07:01:20,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 78 states have internal predecessors, (89), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:20,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2023-11-29 07:01:20,262 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 56 [2023-11-29 07:01:20,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:20,263 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2023-11-29 07:01:20,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:20,263 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2023-11-29 07:01:20,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 07:01:20,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:20,264 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:20,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 07:01:20,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:20,464 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:20,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:20,465 INFO L85 PathProgramCache]: Analyzing trace with hash -27846249, now seen corresponding path program 1 times [2023-11-29 07:01:20,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:20,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819999599] [2023-11-29 07:01:20,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:20,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:20,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 07:01:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:20,560 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 07:01:20,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:20,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819999599] [2023-11-29 07:01:20,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819999599] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:01:20,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602097027] [2023-11-29 07:01:20,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:20,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:20,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:20,561 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:20,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 07:01:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:20,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 07:01:20,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:20,899 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-29 07:01:20,899 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:20,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602097027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:20,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:01:20,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-29 07:01:20,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312878170] [2023-11-29 07:01:20,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:20,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:01:20,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:20,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:01:20,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:01:20,902 INFO L87 Difference]: Start difference. First operand 81 states and 91 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:20,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:20,927 INFO L93 Difference]: Finished difference Result 85 states and 95 transitions. [2023-11-29 07:01:20,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:01:20,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2023-11-29 07:01:20,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:20,928 INFO L225 Difference]: With dead ends: 85 [2023-11-29 07:01:20,928 INFO L226 Difference]: Without dead ends: 84 [2023-11-29 07:01:20,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:01:20,929 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:20,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:20,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-29 07:01:20,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-29 07:01:20,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 79 states have (on average 1.1645569620253164) internal successors, (92), 81 states have internal predecessors, (92), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:20,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2023-11-29 07:01:20,937 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 57 [2023-11-29 07:01:20,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:20,938 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2023-11-29 07:01:20,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:20,938 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2023-11-29 07:01:20,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 07:01:20,939 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:20,939 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:20,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 07:01:21,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 07:01:21,140 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:21,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:21,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1635834021, now seen corresponding path program 1 times [2023-11-29 07:01:21,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:21,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279519523] [2023-11-29 07:01:21,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:21,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:21,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 07:01:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:21,308 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 07:01:21,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:21,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279519523] [2023-11-29 07:01:21,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279519523] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:01:21,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165319172] [2023-11-29 07:01:21,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:21,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:21,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:21,310 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:21,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 07:01:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:21,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:01:21,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:21,665 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 07:01:21,666 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:01:21,686 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 07:01:21,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165319172] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:01:21,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:01:21,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-29 07:01:21,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008401709] [2023-11-29 07:01:21,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:01:21,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:01:21,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:21,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:01:21,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:01:21,689 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:21,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:21,737 INFO L93 Difference]: Finished difference Result 139 states and 162 transitions. [2023-11-29 07:01:21,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:01:21,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2023-11-29 07:01:21,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:21,739 INFO L225 Difference]: With dead ends: 139 [2023-11-29 07:01:21,739 INFO L226 Difference]: Without dead ends: 102 [2023-11-29 07:01:21,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:01:21,740 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 4 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:21,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 126 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:21,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-29 07:01:21,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-11-29 07:01:21,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 97 states have (on average 1.134020618556701) internal successors, (110), 99 states have internal predecessors, (110), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:21,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 112 transitions. [2023-11-29 07:01:21,748 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 112 transitions. Word has length 57 [2023-11-29 07:01:21,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:21,748 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 112 transitions. [2023-11-29 07:01:21,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:21,748 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 112 transitions. [2023-11-29 07:01:21,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 07:01:21,749 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:21,749 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:21,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 07:01:21,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 07:01:21,950 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:21,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:21,951 INFO L85 PathProgramCache]: Analyzing trace with hash -638680392, now seen corresponding path program 1 times [2023-11-29 07:01:21,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:21,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597566428] [2023-11-29 07:01:21,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:21,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:22,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 07:01:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:22,079 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 07:01:22,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:22,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597566428] [2023-11-29 07:01:22,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597566428] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:01:22,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604202487] [2023-11-29 07:01:22,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:22,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:22,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:22,084 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:22,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 07:01:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:22,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:01:22,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:22,455 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 07:01:22,456 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:01:22,475 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 07:01:22,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604202487] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:01:22,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:01:22,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-29 07:01:22,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100803020] [2023-11-29 07:01:22,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:01:22,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:01:22,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:22,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:01:22,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:01:22,477 INFO L87 Difference]: Start difference. First operand 102 states and 112 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:22,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:22,518 INFO L93 Difference]: Finished difference Result 119 states and 132 transitions. [2023-11-29 07:01:22,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:01:22,519 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2023-11-29 07:01:22,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:22,520 INFO L225 Difference]: With dead ends: 119 [2023-11-29 07:01:22,520 INFO L226 Difference]: Without dead ends: 111 [2023-11-29 07:01:22,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:01:22,521 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 4 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:22,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 130 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:22,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-29 07:01:22,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-11-29 07:01:22,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 106 states have (on average 1.1226415094339623) internal successors, (119), 108 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:22,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2023-11-29 07:01:22,528 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 60 [2023-11-29 07:01:22,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:22,529 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2023-11-29 07:01:22,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:22,529 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2023-11-29 07:01:22,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 07:01:22,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:22,530 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:22,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 07:01:22,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 07:01:22,736 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:22,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:22,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1870603876, now seen corresponding path program 2 times [2023-11-29 07:01:22,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:22,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225102702] [2023-11-29 07:01:22,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:22,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:22,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 07:01:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:22,857 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2023-11-29 07:01:22,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:22,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225102702] [2023-11-29 07:01:22,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225102702] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:01:22,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379523812] [2023-11-29 07:01:22,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:01:22,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:22,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:22,859 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:22,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 07:01:23,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 07:01:23,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:01:23,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:01:23,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:23,222 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 07:01:23,222 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:01:23,279 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 07:01:23,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379523812] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:01:23,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:01:23,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-11-29 07:01:23,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498705425] [2023-11-29 07:01:23,280 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:01:23,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:01:23,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:23,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:01:23,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:01:23,282 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:23,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:23,364 INFO L93 Difference]: Finished difference Result 115 states and 126 transitions. [2023-11-29 07:01:23,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:01:23,365 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2023-11-29 07:01:23,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:23,366 INFO L225 Difference]: With dead ends: 115 [2023-11-29 07:01:23,366 INFO L226 Difference]: Without dead ends: 78 [2023-11-29 07:01:23,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:01:23,367 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 21 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:23,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 124 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:23,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-29 07:01:23,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-29 07:01:23,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 1.0675675675675675) internal successors, (79), 75 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:23,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2023-11-29 07:01:23,372 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 69 [2023-11-29 07:01:23,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:23,373 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2023-11-29 07:01:23,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:23,373 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2023-11-29 07:01:23,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 07:01:23,373 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:23,374 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:23,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 07:01:23,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:23,574 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:23,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:23,575 INFO L85 PathProgramCache]: Analyzing trace with hash -394226765, now seen corresponding path program 2 times [2023-11-29 07:01:23,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:23,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124757077] [2023-11-29 07:01:23,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:23,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:23,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 07:01:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:23,729 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-29 07:01:23,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:23,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124757077] [2023-11-29 07:01:23,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124757077] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:01:23,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374801271] [2023-11-29 07:01:23,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:01:23,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:23,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:23,731 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:23,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 07:01:24,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:01:24,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:01:24,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:01:24,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:24,228 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-29 07:01:24,228 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:01:24,298 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-29 07:01:24,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374801271] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:01:24,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:01:24,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-29 07:01:24,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702289827] [2023-11-29 07:01:24,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:01:24,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:01:24,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:24,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:01:24,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:01:24,300 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:24,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:24,625 INFO L93 Difference]: Finished difference Result 135 states and 152 transitions. [2023-11-29 07:01:24,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 07:01:24,626 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2023-11-29 07:01:24,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:24,627 INFO L225 Difference]: With dead ends: 135 [2023-11-29 07:01:24,627 INFO L226 Difference]: Without dead ends: 113 [2023-11-29 07:01:24,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=330, Invalid=792, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 07:01:24,628 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 10 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:24,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 104 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:24,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-29 07:01:24,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-11-29 07:01:24,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 110 states have (on average 1.0363636363636364) internal successors, (114), 110 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:24,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 116 transitions. [2023-11-29 07:01:24,638 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 116 transitions. Word has length 75 [2023-11-29 07:01:24,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:24,638 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 116 transitions. [2023-11-29 07:01:24,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:24,638 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 116 transitions. [2023-11-29 07:01:24,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 07:01:24,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:24,639 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:24,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 07:01:24,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:24,840 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:24,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:24,840 INFO L85 PathProgramCache]: Analyzing trace with hash -453418931, now seen corresponding path program 1 times [2023-11-29 07:01:24,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:24,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963066349] [2023-11-29 07:01:24,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:24,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 07:01:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,052 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-29 07:01:25,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:25,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963066349] [2023-11-29 07:01:25,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963066349] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:01:25,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152983896] [2023-11-29 07:01:25,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:25,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:25,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:25,054 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:25,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 07:01:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:01:25,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:25,642 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-29 07:01:25,642 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:01:25,734 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-29 07:01:25,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152983896] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:01:25,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:01:25,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-29 07:01:25,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116142001] [2023-11-29 07:01:25,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:01:25,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:01:25,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:25,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:01:25,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:01:25,736 INFO L87 Difference]: Start difference. First operand 113 states and 116 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:25,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:25,803 INFO L93 Difference]: Finished difference Result 219 states and 227 transitions. [2023-11-29 07:01:25,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:01:25,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2023-11-29 07:01:25,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:25,805 INFO L225 Difference]: With dead ends: 219 [2023-11-29 07:01:25,805 INFO L226 Difference]: Without dead ends: 218 [2023-11-29 07:01:25,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:01:25,806 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:25,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:25,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-11-29 07:01:25,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2023-11-29 07:01:25,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 215 states have (on average 1.0325581395348837) internal successors, (222), 215 states have internal predecessors, (222), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:25,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 224 transitions. [2023-11-29 07:01:25,817 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 224 transitions. Word has length 112 [2023-11-29 07:01:25,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:25,818 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 224 transitions. [2023-11-29 07:01:25,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:25,818 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 224 transitions. [2023-11-29 07:01:25,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-29 07:01:25,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:25,820 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 10, 10, 10, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:25,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 07:01:26,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:26,024 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 07:01:26,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:26,024 INFO L85 PathProgramCache]: Analyzing trace with hash -267162614, now seen corresponding path program 2 times [2023-11-29 07:01:26,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:26,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404177940] [2023-11-29 07:01:26,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:26,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:26,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 07:01:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:26,408 INFO L134 CoverageAnalysis]: Checked inductivity of 4120 backedges. 0 proven. 1296 refuted. 0 times theorem prover too weak. 2824 trivial. 0 not checked. [2023-11-29 07:01:26,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:26,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404177940] [2023-11-29 07:01:26,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404177940] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:01:26,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270611449] [2023-11-29 07:01:26,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:01:26,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:26,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:26,410 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:26,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 07:01:26,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 07:01:26,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:01:26,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:01:26,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:27,152 INFO L134 CoverageAnalysis]: Checked inductivity of 4120 backedges. 0 proven. 1296 refuted. 0 times theorem prover too weak. 2824 trivial. 0 not checked. [2023-11-29 07:01:27,153 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:01:27,372 INFO L134 CoverageAnalysis]: Checked inductivity of 4120 backedges. 0 proven. 1296 refuted. 0 times theorem prover too weak. 2824 trivial. 0 not checked. [2023-11-29 07:01:27,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270611449] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:01:27,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:01:27,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-29 07:01:27,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014435783] [2023-11-29 07:01:27,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:01:27,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:01:27,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:27,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:01:27,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:01:27,374 INFO L87 Difference]: Start difference. First operand 218 states and 224 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:27,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:27,427 INFO L93 Difference]: Finished difference Result 218 states and 224 transitions. [2023-11-29 07:01:27,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:01:27,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 217 [2023-11-29 07:01:27,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:27,428 INFO L225 Difference]: With dead ends: 218 [2023-11-29 07:01:27,428 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 07:01:27,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:01:27,430 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:27,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 50 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:27,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 07:01:27,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 07:01:27,431 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) [2023-11-29 07:01:27,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 07:01:27,431 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 217 [2023-11-29 07:01:27,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:27,431 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 07:01:27,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:01:27,432 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 07:01:27,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 07:01:27,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2023-11-29 07:01:27,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2023-11-29 07:01:27,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2023-11-29 07:01:27,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2023-11-29 07:01:27,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2023-11-29 07:01:27,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2023-11-29 07:01:27,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2023-11-29 07:01:27,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2023-11-29 07:01:27,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2023-11-29 07:01:27,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2023-11-29 07:01:27,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2023-11-29 07:01:27,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2023-11-29 07:01:27,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2023-11-29 07:01:27,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2023-11-29 07:01:27,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2023-11-29 07:01:27,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2023-11-29 07:01:27,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2023-11-29 07:01:27,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2023-11-29 07:01:27,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2023-11-29 07:01:27,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2023-11-29 07:01:27,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2023-11-29 07:01:27,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2023-11-29 07:01:27,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2023-11-29 07:01:27,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2023-11-29 07:01:27,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 07:01:27,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 07:01:27,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 07:01:28,237 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8 10) the Hoare annotation is: true [2023-11-29 07:01:28,238 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2023-11-29 07:01:28,238 INFO L899 garLoopResultBuilder]: For program point L9-2(lines 8 10) no Hoare annotation was computed. [2023-11-29 07:01:28,238 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2023-11-29 07:01:28,238 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1335) no Hoare annotation was computed. [2023-11-29 07:01:28,238 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1347) no Hoare annotation was computed. [2023-11-29 07:01:28,238 INFO L899 garLoopResultBuilder]: For program point L1200(lines 1200 1208) no Hoare annotation was computed. [2023-11-29 07:01:28,238 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1202) no Hoare annotation was computed. [2023-11-29 07:01:28,238 INFO L899 garLoopResultBuilder]: For program point L1225(lines 1225 1228) no Hoare annotation was computed. [2023-11-29 07:01:28,238 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1343) no Hoare annotation was computed. [2023-11-29 07:01:28,238 INFO L899 garLoopResultBuilder]: For program point L1192(line 1192) no Hoare annotation was computed. [2023-11-29 07:01:28,239 INFO L899 garLoopResultBuilder]: For program point L1192-1(line 1192) no Hoare annotation was computed. [2023-11-29 07:01:28,239 INFO L899 garLoopResultBuilder]: For program point L1225-2(lines 1166 1232) no Hoare annotation was computed. [2023-11-29 07:01:28,239 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1328) no Hoare annotation was computed. [2023-11-29 07:01:28,239 INFO L899 garLoopResultBuilder]: For program point L1176(lines 1176 1188) no Hoare annotation was computed. [2023-11-29 07:01:28,240 INFO L899 garLoopResultBuilder]: For program point L1176-2(lines 1173 1223) no Hoare annotation was computed. [2023-11-29 07:01:28,240 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1206) no Hoare annotation was computed. [2023-11-29 07:01:28,240 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1338) no Hoare annotation was computed. [2023-11-29 07:01:28,240 INFO L899 garLoopResultBuilder]: For program point L1193(lines 1193 1211) no Hoare annotation was computed. [2023-11-29 07:01:28,240 INFO L899 garLoopResultBuilder]: For program point L1193-1(lines 1193 1211) no Hoare annotation was computed. [2023-11-29 07:01:28,240 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1328) no Hoare annotation was computed. [2023-11-29 07:01:28,240 INFO L899 garLoopResultBuilder]: For program point L1185(lines 1176 1188) no Hoare annotation was computed. [2023-11-29 07:01:28,241 INFO L895 garLoopResultBuilder]: At program point L1334(line 1334) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~argc~0#1| 2147483648)) (<= |ULTIMATE.start_main_~argc~0#1| 2147483647)) [2023-11-29 07:01:28,241 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1206) no Hoare annotation was computed. [2023-11-29 07:01:28,241 INFO L899 garLoopResultBuilder]: For program point L1334-1(line 1334) no Hoare annotation was computed. [2023-11-29 07:01:28,241 INFO L899 garLoopResultBuilder]: For program point L1202(line 1202) no Hoare annotation was computed. [2023-11-29 07:01:28,241 INFO L899 garLoopResultBuilder]: For program point L1202-1(line 1202) no Hoare annotation was computed. [2023-11-29 07:01:28,241 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1338) no Hoare annotation was computed. [2023-11-29 07:01:28,241 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 07:01:28,241 INFO L899 garLoopResultBuilder]: For program point L1343-2(lines 1343 1344) no Hoare annotation was computed. [2023-11-29 07:01:28,241 INFO L899 garLoopResultBuilder]: For program point L1343-3(line 1343) no Hoare annotation was computed. [2023-11-29 07:01:28,242 INFO L895 garLoopResultBuilder]: At program point L1343-4(lines 1343 1344) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~j~0#1|)) (.cse5 (= |ULTIMATE.start_main_~i~5#1| 0)) (.cse1 (<= 1 |ULTIMATE.start_main_~argc~0#1|)) (.cse6 (= |ULTIMATE.start_main_~j~0#1| 0)) (.cse2 (<= |ULTIMATE.start_main_~i~5#1| 2147483645)) (.cse3 (<= |ULTIMATE.start_main_~argc~0#1| 10000)) (.cse4 (<= 1 |ULTIMATE.start_main_~i~5#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse5 .cse6 .cse3) (and .cse0 .cse1 .cse5 .cse3) (and .cse1 .cse6 .cse2 .cse3 .cse4))) [2023-11-29 07:01:28,242 INFO L899 garLoopResultBuilder]: For program point L1343-5(lines 1343 1344) no Hoare annotation was computed. [2023-11-29 07:01:28,242 INFO L899 garLoopResultBuilder]: For program point L1335(line 1335) no Hoare annotation was computed. [2023-11-29 07:01:28,242 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1213) no Hoare annotation was computed. [2023-11-29 07:01:28,242 INFO L899 garLoopResultBuilder]: For program point L1203(lines 1203 1207) no Hoare annotation was computed. [2023-11-29 07:01:28,242 INFO L899 garLoopResultBuilder]: For program point L1236-2(lines 1236 1237) no Hoare annotation was computed. [2023-11-29 07:01:28,242 INFO L899 garLoopResultBuilder]: For program point L1236-3(line 1236) no Hoare annotation was computed. [2023-11-29 07:01:28,243 INFO L895 garLoopResultBuilder]: At program point L1236-4(lines 1236 1237) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~argc~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~argc~0#1| 10000))) (or (and .cse0 .cse1 (<= 1 |ULTIMATE.start_dirname_~i~0#1|)) (and (= |ULTIMATE.start_dirname_~i~0#1| 0) .cse0 .cse1))) [2023-11-29 07:01:28,243 INFO L899 garLoopResultBuilder]: For program point L1236-5(lines 1236 1237) no Hoare annotation was computed. [2023-11-29 07:01:28,243 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1192) no Hoare annotation was computed. [2023-11-29 07:01:28,243 INFO L899 garLoopResultBuilder]: For program point L1195(lines 1195 1210) no Hoare annotation was computed. [2023-11-29 07:01:28,244 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1213) no Hoare annotation was computed. [2023-11-29 07:01:28,244 INFO L899 garLoopResultBuilder]: For program point L1336(line 1336) no Hoare annotation was computed. [2023-11-29 07:01:28,244 INFO L899 garLoopResultBuilder]: For program point L1336-1(line 1336) no Hoare annotation was computed. [2023-11-29 07:01:28,244 INFO L899 garLoopResultBuilder]: For program point L1328-2(lines 1328 1329) no Hoare annotation was computed. [2023-11-29 07:01:28,244 INFO L899 garLoopResultBuilder]: For program point L1328-3(line 1328) no Hoare annotation was computed. [2023-11-29 07:01:28,244 INFO L895 garLoopResultBuilder]: At program point L1328-4(lines 1328 1329) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~4#1| 0) (< 0 |ULTIMATE.start_main_~i~4#1|)) [2023-11-29 07:01:28,244 INFO L899 garLoopResultBuilder]: For program point L1229-1(lines 1229 1230) no Hoare annotation was computed. [2023-11-29 07:01:28,245 INFO L899 garLoopResultBuilder]: For program point L1328-5(lines 1328 1329) no Hoare annotation was computed. [2023-11-29 07:01:28,245 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1192) no Hoare annotation was computed. [2023-11-29 07:01:28,245 INFO L899 garLoopResultBuilder]: For program point L1221(lines 1221 1222) no Hoare annotation was computed. [2023-11-29 07:01:28,245 INFO L899 garLoopResultBuilder]: For program point L1221-2(lines 1221 1222) no Hoare annotation was computed. [2023-11-29 07:01:28,245 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1336) no Hoare annotation was computed. [2023-11-29 07:01:28,245 INFO L899 garLoopResultBuilder]: For program point L1213(line 1213) no Hoare annotation was computed. [2023-11-29 07:01:28,245 INFO L899 garLoopResultBuilder]: For program point L1213-1(line 1213) no Hoare annotation was computed. [2023-11-29 07:01:28,246 INFO L899 garLoopResultBuilder]: For program point L1205(lines 1205 1206) no Hoare annotation was computed. [2023-11-29 07:01:28,246 INFO L899 garLoopResultBuilder]: For program point L1172(lines 1172 1223) no Hoare annotation was computed. [2023-11-29 07:01:28,246 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1236) no Hoare annotation was computed. [2023-11-29 07:01:28,246 INFO L899 garLoopResultBuilder]: For program point L1172-2(lines 1172 1223) no Hoare annotation was computed. [2023-11-29 07:01:28,246 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1197) no Hoare annotation was computed. [2023-11-29 07:01:28,246 INFO L899 garLoopResultBuilder]: For program point L1197(line 1197) no Hoare annotation was computed. [2023-11-29 07:01:28,247 INFO L899 garLoopResultBuilder]: For program point L1197-1(line 1197) no Hoare annotation was computed. [2023-11-29 07:01:28,247 INFO L899 garLoopResultBuilder]: For program point L1189-1(lines 1189 1219) no Hoare annotation was computed. [2023-11-29 07:01:28,247 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 07:01:28,247 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1336) no Hoare annotation was computed. [2023-11-29 07:01:28,247 INFO L899 garLoopResultBuilder]: For program point L1338-2(lines 1338 1345) no Hoare annotation was computed. [2023-11-29 07:01:28,247 INFO L899 garLoopResultBuilder]: For program point L1338-3(line 1338) no Hoare annotation was computed. [2023-11-29 07:01:28,247 INFO L895 garLoopResultBuilder]: At program point L1338-4(lines 1338 1345) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~argc~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~argc~0#1| 10000))) (or (and .cse0 (= |ULTIMATE.start_main_~i~5#1| 0) .cse1) (and .cse0 (<= |ULTIMATE.start_main_~i~5#1| 2147483646) .cse1 (<= 1 |ULTIMATE.start_main_~i~5#1|)))) [2023-11-29 07:01:28,248 INFO L899 garLoopResultBuilder]: For program point L1206(line 1206) no Hoare annotation was computed. [2023-11-29 07:01:28,248 INFO L899 garLoopResultBuilder]: For program point L1338-5(lines 1338 1345) no Hoare annotation was computed. [2023-11-29 07:01:28,248 INFO L899 garLoopResultBuilder]: For program point L1206-1(line 1206) no Hoare annotation was computed. [2023-11-29 07:01:28,248 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1236) no Hoare annotation was computed. [2023-11-29 07:01:28,248 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1197) no Hoare annotation was computed. [2023-11-29 07:01:28,248 INFO L899 garLoopResultBuilder]: For program point L1198(lines 1198 1209) no Hoare annotation was computed. [2023-11-29 07:01:28,248 INFO L899 garLoopResultBuilder]: For program point L1347-2(lines 1347 1348) no Hoare annotation was computed. [2023-11-29 07:01:28,249 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1347) no Hoare annotation was computed. [2023-11-29 07:01:28,249 INFO L899 garLoopResultBuilder]: For program point L1347-3(line 1347) no Hoare annotation was computed. [2023-11-29 07:01:28,249 INFO L895 garLoopResultBuilder]: At program point L1347-4(lines 1347 1348) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~i~6#1| 2147483646) (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000) (<= 0 |ULTIMATE.start_main_~i~6#1|)) [2023-11-29 07:01:28,249 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1335) no Hoare annotation was computed. [2023-11-29 07:01:28,249 INFO L899 garLoopResultBuilder]: For program point L1347-5(lines 1347 1348) no Hoare annotation was computed. [2023-11-29 07:01:28,249 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1202) no Hoare annotation was computed. [2023-11-29 07:01:28,249 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1343) no Hoare annotation was computed. [2023-11-29 07:01:28,253 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:28,255 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 07:01:28,266 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~argc~0 [2023-11-29 07:01:28,267 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~argc~0 [2023-11-29 07:01:28,267 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~argc~0 [2023-11-29 07:01:28,267 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~argc~0 [2023-11-29 07:01:28,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:01:28 BoogieIcfgContainer [2023-11-29 07:01:28,269 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 07:01:28,270 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 07:01:28,270 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 07:01:28,270 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 07:01:28,271 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:01:13" (3/4) ... [2023-11-29 07:01:28,273 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 07:01:28,277 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-29 07:01:28,285 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2023-11-29 07:01:28,286 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-29 07:01:28,287 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-29 07:01:28,288 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 07:01:28,288 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 07:01:28,289 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 07:01:28,406 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 07:01:28,407 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 07:01:28,407 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 07:01:28,408 INFO L158 Benchmark]: Toolchain (without parser) took 16167.56ms. Allocated memory was 148.9MB in the beginning and 314.6MB in the end (delta: 165.7MB). Free memory was 105.8MB in the beginning and 208.3MB in the end (delta: -102.5MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. [2023-11-29 07:01:28,409 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 148.9MB. Free memory was 91.6MB in the beginning and 91.4MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 07:01:28,409 INFO L158 Benchmark]: CACSL2BoogieTranslator took 809.62ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 105.8MB in the beginning and 145.3MB in the end (delta: -39.5MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2023-11-29 07:01:28,409 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.48ms. Allocated memory is still 180.4MB. Free memory was 145.2MB in the beginning and 147.2MB in the end (delta: -2.0MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2023-11-29 07:01:28,410 INFO L158 Benchmark]: Boogie Preprocessor took 77.84ms. Allocated memory is still 180.4MB. Free memory was 147.2MB in the beginning and 142.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 07:01:28,410 INFO L158 Benchmark]: RCFGBuilder took 730.97ms. Allocated memory is still 180.4MB. Free memory was 141.0MB in the beginning and 107.6MB in the end (delta: 33.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-29 07:01:28,411 INFO L158 Benchmark]: TraceAbstraction took 14330.59ms. Allocated memory was 180.4MB in the beginning and 314.6MB in the end (delta: 134.2MB). Free memory was 106.4MB in the beginning and 216.7MB in the end (delta: -110.3MB). Peak memory consumption was 150.7MB. Max. memory is 16.1GB. [2023-11-29 07:01:28,411 INFO L158 Benchmark]: Witness Printer took 137.49ms. Allocated memory is still 314.6MB. Free memory was 215.6MB in the beginning and 208.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 07:01:28,413 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 148.9MB. Free memory was 91.6MB in the beginning and 91.4MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 809.62ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 105.8MB in the beginning and 145.3MB in the end (delta: -39.5MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.48ms. Allocated memory is still 180.4MB. Free memory was 145.2MB in the beginning and 147.2MB in the end (delta: -2.0MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.84ms. Allocated memory is still 180.4MB. Free memory was 147.2MB in the beginning and 142.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 730.97ms. Allocated memory is still 180.4MB. Free memory was 141.0MB in the beginning and 107.6MB in the end (delta: 33.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 14330.59ms. Allocated memory was 180.4MB in the beginning and 314.6MB in the end (delta: 134.2MB). Free memory was 106.4MB in the beginning and 216.7MB in the end (delta: -110.3MB). Peak memory consumption was 150.7MB. Max. memory is 16.1GB. * Witness Printer took 137.49ms. Allocated memory is still 314.6MB. Free memory was 215.6MB in the beginning and 208.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~argc~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~argc~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~argc~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~argc~0 * 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: 1328]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1328]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1335]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1335]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1336]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1336]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1343]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1343]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1338]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1338]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1192]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1192]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1197]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1197]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1202]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1202]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1206]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1206]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1213]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1213]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1236]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1236]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1347]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1347]: 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 2 procedures, 83 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 14.3s, OverallIterations: 22, TraceHistogramMax: 50, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 242 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 2891 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1684 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 645 IncrementalHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 1207 mSDtfsCounter, 645 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1580 GetRequests, 1468 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=21, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 22 MinimizatonAttempts, 14 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 89 NumberOfFragments, 134 HoareAnnotationTreeSize, 10 FomulaSimplifications, 1290 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 572 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 1970 NumberOfCodeBlocks, 1713 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 2559 ConstructedInterpolants, 0 QuantifiedInterpolants, 4589 SizeOfPredicates, 5 NumberOfNonLiveVariables, 5808 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 44 InterpolantComputations, 14 PerfectInterpolantSequences, 13514/18572 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 24 specifications checked. All of them hold - InvariantResult [Line: 1347]: Loop Invariant Derived loop invariant: ((((i <= 2147483646) && (1 <= argc)) && (argc <= 10000)) && (0 <= i)) - InvariantResult [Line: 1328]: Loop Invariant Derived loop invariant: ((i == 0) || (0 < i)) - InvariantResult [Line: 1236]: Loop Invariant Derived loop invariant: ((1 <= i) || (i == 0)) - InvariantResult [Line: 1343]: Loop Invariant Derived loop invariant: ((((((((1 <= j) && (1 <= argc)) && (i <= 2147483645)) && (argc <= 10000)) && (1 <= i)) || ((((1 <= argc) && (i == 0)) && (j == 0)) && (argc <= 10000))) || ((((1 <= j) && (1 <= argc)) && (i == 0)) && (argc <= 10000))) || (((((1 <= argc) && (j == 0)) && (i <= 2147483645)) && (argc <= 10000)) && (1 <= i))) - InvariantResult [Line: 1338]: Loop Invariant Derived loop invariant: ((((1 <= argc) && (i == 0)) && (argc <= 10000)) || ((((1 <= argc) && (i <= 2147483646)) && (argc <= 10000)) && (1 <= i))) RESULT: Ultimate proved your program to be correct! [2023-11-29 07:01:28,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36ec6bfe-4bee-4893-a119-519d9712c348/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE