./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/tee-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/tee-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB --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 51f4cf8ce110b92f68961d27b667e514c3fefcd9540eb44fa919855fdd25ad59 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:53:57,870 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:53:57,962 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-28 02:53:57,968 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:53:57,968 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:53:58,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:53:58,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:53:58,009 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:53:58,010 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:53:58,010 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:53:58,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:53:58,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:53:58,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:53:58,012 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:53:58,012 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:53:58,013 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:53:58,013 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:53:58,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:53:58,013 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:53:58,013 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:53:58,014 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:53:58,014 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:53:58,014 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 02:53:58,014 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:53:58,014 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:53:58,015 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:53:58,015 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:53:58,015 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:53:58,015 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:53:58,015 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:53:58,015 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:53:58,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:58,016 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:53:58,017 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:53:58,017 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:53:58,017 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:53:58,017 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:58,017 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:53:58,017 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:53:58,018 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:53:58,018 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:53:58,018 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:53:58,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:53:58,018 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:53:58,018 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:53:58,018 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:53:58,019 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:53:58,019 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 51f4cf8ce110b92f68961d27b667e514c3fefcd9540eb44fa919855fdd25ad59 [2024-11-28 02:53:58,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:53:58,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:53:58,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:53:58,359 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:53:58,359 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:53:58,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/busybox-1.22.0/tee-2.i [2024-11-28 02:54:01,495 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/data/223f71d3c/a150a1ba19944c649e3f4ed514e3daea/FLAG0458ce2c8 [2024-11-28 02:54:02,005 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:54:02,010 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/sv-benchmarks/c/busybox-1.22.0/tee-2.i [2024-11-28 02:54:02,050 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/data/223f71d3c/a150a1ba19944c649e3f4ed514e3daea/FLAG0458ce2c8 [2024-11-28 02:54:02,075 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/data/223f71d3c/a150a1ba19944c649e3f4ed514e3daea [2024-11-28 02:54:02,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:54:02,080 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:54:02,083 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:54:02,083 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:54:02,088 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:54:02,089 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:54:02" (1/1) ... [2024-11-28 02:54:02,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e84436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:02, skipping insertion in model container [2024-11-28 02:54:02,090 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:54:02" (1/1) ... [2024-11-28 02:54:02,172 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:54:03,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:54:03,861 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:54:04,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:54:04,574 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2024-11-28 02:54:04,582 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:54:04,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:04 WrapperNode [2024-11-28 02:54:04,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:54:04,584 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:54:04,584 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:54:04,584 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:54:04,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:04" (1/1) ... [2024-11-28 02:54:04,737 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:04" (1/1) ... [2024-11-28 02:54:05,193 INFO L138 Inliner]: procedures = 575, calls = 8940, calls flagged for inlining = 28, calls inlined = 26, statements flattened = 10191 [2024-11-28 02:54:05,194 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:54:05,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:54:05,196 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:54:05,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:54:05,208 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:04" (1/1) ... [2024-11-28 02:54:05,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:04" (1/1) ... [2024-11-28 02:54:05,399 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:04" (1/1) ... [2024-11-28 02:54:05,420 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-28 02:54:05,421 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:04" (1/1) ... [2024-11-28 02:54:05,421 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:04" (1/1) ... [2024-11-28 02:54:05,763 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:04" (1/1) ... [2024-11-28 02:54:05,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:04" (1/1) ... [2024-11-28 02:54:05,816 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:04" (1/1) ... [2024-11-28 02:54:05,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:04" (1/1) ... [2024-11-28 02:54:05,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:04" (1/1) ... [2024-11-28 02:54:05,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:54:05,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:54:05,946 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:54:05,946 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:54:05,947 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:04" (1/1) ... [2024-11-28 02:54:05,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:54:05,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:05,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:54:05,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:54:06,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:54:06,030 INFO L130 BoogieDeclarations]: Found specification of procedure xzalloc [2024-11-28 02:54:06,031 INFO L138 BoogieDeclarations]: Found implementation of procedure xzalloc [2024-11-28 02:54:06,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-28 02:54:06,031 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2024-11-28 02:54:06,031 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2024-11-28 02:54:06,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-28 02:54:06,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 02:54:06,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:54:06,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:54:06,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-28 02:54:06,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:54:06,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:54:06,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2024-11-28 02:54:06,033 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2024-11-28 02:54:06,033 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2024-11-28 02:54:06,033 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2024-11-28 02:54:06,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-28 02:54:06,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-28 02:54:06,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-28 02:54:06,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-28 02:54:06,035 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:54:06,035 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:54:06,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:54:06,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-28 02:54:06,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-28 02:54:06,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 02:54:06,036 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2024-11-28 02:54:06,039 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2024-11-28 02:54:06,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 02:54:06,694 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:54:06,696 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:54:34,412 INFO L? ?]: Removed 611 outVars from TransFormulas that were not future-live. [2024-11-28 02:54:34,412 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:54:34,450 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:54:34,454 INFO L312 CfgBuilder]: Removed 40 assume(true) statements. [2024-11-28 02:54:34,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:54:34 BoogieIcfgContainer [2024-11-28 02:54:34,455 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:54:34,458 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:54:34,462 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:54:34,470 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:54:34,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:54:02" (1/3) ... [2024-11-28 02:54:34,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7d13fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:54:34, skipping insertion in model container [2024-11-28 02:54:34,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:04" (2/3) ... [2024-11-28 02:54:34,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7d13fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:54:34, skipping insertion in model container [2024-11-28 02:54:34,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:54:34" (3/3) ... [2024-11-28 02:54:34,473 INFO L128 eAbstractionObserver]: Analyzing ICFG tee-2.i [2024-11-28 02:54:34,497 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:54:34,501 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG tee-2.i that has 8 procedures, 532 locations, 1 initial locations, 36 loop locations, and 67 error locations. [2024-11-28 02:54:34,601 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:54:34,622 INFO L333 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, 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;@cc82b32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:54:34,624 INFO L334 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2024-11-28 02:54:34,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 532 states, 434 states have (on average 1.6612903225806452) internal successors, (721), 503 states have internal predecessors, (721), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 02:54:34,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-28 02:54:34,642 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:34,643 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 02:54:34,643 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:54:34,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:34,651 INFO L85 PathProgramCache]: Analyzing trace with hash 276816106, now seen corresponding path program 1 times [2024-11-28 02:54:34,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:34,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513779401] [2024-11-28 02:54:34,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:34,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:41,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:54:41,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:41,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513779401] [2024-11-28 02:54:41,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513779401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:41,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:41,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:54:41,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396028542] [2024-11-28 02:54:41,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:41,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:54:41,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:41,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:54:41,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:54:41,132 INFO L87 Difference]: Start difference. First operand has 532 states, 434 states have (on average 1.6612903225806452) internal successors, (721), 503 states have internal predecessors, (721), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-28 02:54:41,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:41,273 INFO L93 Difference]: Finished difference Result 923 states and 1351 transitions. [2024-11-28 02:54:41,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:54:41,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2024-11-28 02:54:41,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:41,293 INFO L225 Difference]: With dead ends: 923 [2024-11-28 02:54:41,297 INFO L226 Difference]: Without dead ends: 394 [2024-11-28 02:54:41,305 INFO L434 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 [2024-11-28 02:54:41,312 INFO L435 NwaCegarLoop]: 536 mSDtfsCounter, 1 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:41,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1067 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:54:41,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-28 02:54:41,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2024-11-28 02:54:41,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 330 states have (on average 1.5636363636363637) internal successors, (516), 376 states have internal predecessors, (516), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:54:41,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 541 transitions. [2024-11-28 02:54:41,412 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 541 transitions. Word has length 5 [2024-11-28 02:54:41,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:41,417 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 541 transitions. [2024-11-28 02:54:41,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-28 02:54:41,417 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 541 transitions. [2024-11-28 02:54:41,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 02:54:41,417 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:41,417 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-28 02:54:41,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:54:41,418 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:54:41,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:41,419 INFO L85 PathProgramCache]: Analyzing trace with hash 453048804, now seen corresponding path program 1 times [2024-11-28 02:54:41,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:41,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998652748] [2024-11-28 02:54:41,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:41,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:46,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:54:46,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:46,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998652748] [2024-11-28 02:54:46,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998652748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:46,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488836793] [2024-11-28 02:54:46,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:46,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:46,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:46,959 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:46,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:54:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:53,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 17849 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:54:53,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:53,375 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:54:53,375 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:53,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488836793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:53,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:53,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-28 02:54:53,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554172716] [2024-11-28 02:54:53,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:53,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:54:53,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:53,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:54:53,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:54:53,379 INFO L87 Difference]: Start difference. First operand 394 states and 541 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:54:53,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:53,482 INFO L93 Difference]: Finished difference Result 394 states and 541 transitions. [2024-11-28 02:54:53,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:54:53,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-28 02:54:53,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:53,487 INFO L225 Difference]: With dead ends: 394 [2024-11-28 02:54:53,487 INFO L226 Difference]: Without dead ends: 393 [2024-11-28 02:54:53,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:54:53,489 INFO L435 NwaCegarLoop]: 530 mSDtfsCounter, 1 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:53,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1058 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:54:53,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-28 02:54:53,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-28 02:54:53,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 330 states have (on average 1.5606060606060606) internal successors, (515), 375 states have internal predecessors, (515), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:54:53,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 540 transitions. [2024-11-28 02:54:53,537 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 540 transitions. Word has length 9 [2024-11-28 02:54:53,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:53,537 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 540 transitions. [2024-11-28 02:54:53,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:54:53,538 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 540 transitions. [2024-11-28 02:54:53,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-28 02:54:53,538 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:53,538 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2024-11-28 02:54:53,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:54:53,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:53,739 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:54:53,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:53,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1159611342, now seen corresponding path program 1 times [2024-11-28 02:54:53,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:53,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615598116] [2024-11-28 02:54:53,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:53,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:58,857 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 02:54:58,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:58,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615598116] [2024-11-28 02:54:58,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615598116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:58,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:58,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:54:58,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242545406] [2024-11-28 02:54:58,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:58,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:54:58,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:58,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:54:58,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:54:58,860 INFO L87 Difference]: Start difference. First operand 393 states and 540 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:54:58,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:58,905 INFO L93 Difference]: Finished difference Result 393 states and 540 transitions. [2024-11-28 02:54:58,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:54:58,906 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-28 02:54:58,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:58,908 INFO L225 Difference]: With dead ends: 393 [2024-11-28 02:54:58,908 INFO L226 Difference]: Without dead ends: 392 [2024-11-28 02:54:58,909 INFO L434 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 [2024-11-28 02:54:58,910 INFO L435 NwaCegarLoop]: 531 mSDtfsCounter, 0 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:58,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1059 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:54:58,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-28 02:54:58,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 389. [2024-11-28 02:54:58,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 327 states have (on average 1.562691131498471) internal successors, (511), 371 states have internal predecessors, (511), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:54:58,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 536 transitions. [2024-11-28 02:54:58,940 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 536 transitions. Word has length 10 [2024-11-28 02:54:58,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:58,941 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 536 transitions. [2024-11-28 02:54:58,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:54:58,941 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 536 transitions. [2024-11-28 02:54:58,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 02:54:58,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:58,941 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:58,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:54:58,942 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:54:58,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:58,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1446192886, now seen corresponding path program 1 times [2024-11-28 02:54:58,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:58,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609642494] [2024-11-28 02:54:58,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:58,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:03,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:03,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:03,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609642494] [2024-11-28 02:55:03,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609642494] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:03,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399746951] [2024-11-28 02:55:03,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:03,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:03,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:03,818 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:03,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:55:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:10,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 17866 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:55:10,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:10,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 02:55:10,360 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:55:10,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399746951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:10,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:10,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-28 02:55:10,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628886504] [2024-11-28 02:55:10,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:10,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:55:10,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:10,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:55:10,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:55:10,362 INFO L87 Difference]: Start difference. First operand 389 states and 536 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-28 02:55:10,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:10,425 INFO L93 Difference]: Finished difference Result 389 states and 536 transitions. [2024-11-28 02:55:10,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:55:10,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14 [2024-11-28 02:55:10,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:10,429 INFO L225 Difference]: With dead ends: 389 [2024-11-28 02:55:10,429 INFO L226 Difference]: Without dead ends: 387 [2024-11-28 02:55:10,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:55:10,430 INFO L435 NwaCegarLoop]: 524 mSDtfsCounter, 468 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 577 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 [2024-11-28 02:55:10,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 577 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:55:10,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-28 02:55:10,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2024-11-28 02:55:10,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 327 states have (on average 1.5565749235474007) internal successors, (509), 369 states have internal predecessors, (509), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:55:10,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 534 transitions. [2024-11-28 02:55:10,452 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 534 transitions. Word has length 14 [2024-11-28 02:55:10,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:10,454 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 534 transitions. [2024-11-28 02:55:10,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-28 02:55:10,454 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 534 transitions. [2024-11-28 02:55:10,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 02:55:10,455 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:10,455 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:10,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:55:10,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:10,656 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:55:10,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:10,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1882306191, now seen corresponding path program 1 times [2024-11-28 02:55:10,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:10,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282027193] [2024-11-28 02:55:10,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:10,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:15,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:15,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:15,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282027193] [2024-11-28 02:55:15,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282027193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:15,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724591423] [2024-11-28 02:55:15,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:15,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:15,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:15,064 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:15,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:55:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:21,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 17867 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:55:21,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:21,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:21,354 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:21,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:21,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724591423] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:55:21,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:55:21,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 02:55:21,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299015544] [2024-11-28 02:55:21,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:21,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:55:21,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:21,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:55:21,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:55:21,427 INFO L87 Difference]: Start difference. First operand 387 states and 534 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 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) [2024-11-28 02:55:21,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:21,530 INFO L93 Difference]: Finished difference Result 779 states and 1075 transitions. [2024-11-28 02:55:21,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:55:21,531 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 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 15 [2024-11-28 02:55:21,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:21,534 INFO L225 Difference]: With dead ends: 779 [2024-11-28 02:55:21,537 INFO L226 Difference]: Without dead ends: 399 [2024-11-28 02:55:21,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:55:21,539 INFO L435 NwaCegarLoop]: 529 mSDtfsCounter, 6 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1581 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:21,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1581 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:55:21,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-11-28 02:55:21,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2024-11-28 02:55:21,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 339 states have (on average 1.536873156342183) internal successors, (521), 381 states have internal predecessors, (521), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:55:21,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 546 transitions. [2024-11-28 02:55:21,568 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 546 transitions. Word has length 15 [2024-11-28 02:55:21,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:21,568 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 546 transitions. [2024-11-28 02:55:21,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 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) [2024-11-28 02:55:21,569 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 546 transitions. [2024-11-28 02:55:21,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-28 02:55:21,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:21,569 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:21,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:55:21,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:21,770 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:55:21,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:21,770 INFO L85 PathProgramCache]: Analyzing trace with hash 166943711, now seen corresponding path program 2 times [2024-11-28 02:55:21,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:21,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512861861] [2024-11-28 02:55:21,771 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:55:21,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:25,213 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:55:25,213 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:55:27,123 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 02:55:27,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:27,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512861861] [2024-11-28 02:55:27,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512861861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:27,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:27,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:55:27,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852094449] [2024-11-28 02:55:27,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:27,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:55:27,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:27,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:55:27,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:55:27,126 INFO L87 Difference]: Start difference. First operand 399 states and 546 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2024-11-28 02:55:27,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:27,265 INFO L93 Difference]: Finished difference Result 399 states and 546 transitions. [2024-11-28 02:55:27,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:55:27,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 [2024-11-28 02:55:27,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:27,268 INFO L225 Difference]: With dead ends: 399 [2024-11-28 02:55:27,268 INFO L226 Difference]: Without dead ends: 397 [2024-11-28 02:55:27,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:55:27,271 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 467 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:27,272 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 1608 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:55:27,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-28 02:55:27,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2024-11-28 02:55:27,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 339 states have (on average 1.5309734513274336) internal successors, (519), 379 states have internal predecessors, (519), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:55:27,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 544 transitions. [2024-11-28 02:55:27,297 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 544 transitions. Word has length 27 [2024-11-28 02:55:27,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:27,298 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 544 transitions. [2024-11-28 02:55:27,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2024-11-28 02:55:27,298 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 544 transitions. [2024-11-28 02:55:27,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 02:55:27,298 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:27,298 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:27,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:55:27,299 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:55:27,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:27,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1430904404, now seen corresponding path program 1 times [2024-11-28 02:55:27,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:27,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173146745] [2024-11-28 02:55:27,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:27,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:31,984 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 02:55:31,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:31,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173146745] [2024-11-28 02:55:31,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173146745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:31,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:31,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:55:31,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447579362] [2024-11-28 02:55:31,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:31,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:55:31,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:31,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:55:31,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:55:31,986 INFO L87 Difference]: Start difference. First operand 397 states and 544 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) [2024-11-28 02:55:32,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:32,066 INFO L93 Difference]: Finished difference Result 773 states and 1068 transitions. [2024-11-28 02:55:32,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:55:32,066 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 34 [2024-11-28 02:55:32,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:32,068 INFO L225 Difference]: With dead ends: 773 [2024-11-28 02:55:32,069 INFO L226 Difference]: Without dead ends: 401 [2024-11-28 02:55:32,070 INFO L434 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 [2024-11-28 02:55:32,072 INFO L435 NwaCegarLoop]: 527 mSDtfsCounter, 1 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:32,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1048 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:55:32,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-28 02:55:32,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2024-11-28 02:55:32,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 343 states have (on average 1.5247813411078717) internal successors, (523), 383 states have internal predecessors, (523), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:55:32,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 548 transitions. [2024-11-28 02:55:32,094 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 548 transitions. Word has length 34 [2024-11-28 02:55:32,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:32,094 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 548 transitions. [2024-11-28 02:55:32,095 INFO L472 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) [2024-11-28 02:55:32,095 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 548 transitions. [2024-11-28 02:55:32,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 02:55:32,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:32,096 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:32,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:55:32,096 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:55:32,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:32,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1428258993, now seen corresponding path program 1 times [2024-11-28 02:55:32,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:32,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020408610] [2024-11-28 02:55:32,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:32,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:36,554 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 02:55:36,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:36,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020408610] [2024-11-28 02:55:36,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020408610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:36,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:36,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:55:36,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102455680] [2024-11-28 02:55:36,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:36,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:55:36,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:36,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:55:36,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:55:36,556 INFO L87 Difference]: Start difference. First operand 401 states and 548 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) [2024-11-28 02:55:36,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:36,655 INFO L93 Difference]: Finished difference Result 703 states and 989 transitions. [2024-11-28 02:55:36,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:55:36,655 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 34 [2024-11-28 02:55:36,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:36,659 INFO L225 Difference]: With dead ends: 703 [2024-11-28 02:55:36,659 INFO L226 Difference]: Without dead ends: 701 [2024-11-28 02:55:36,659 INFO L434 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 [2024-11-28 02:55:36,660 INFO L435 NwaCegarLoop]: 523 mSDtfsCounter, 417 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:36,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1038 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:55:36,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-11-28 02:55:36,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 405. [2024-11-28 02:55:36,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 347 states have (on average 1.521613832853026) internal successors, (528), 387 states have internal predecessors, (528), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:55:36,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 553 transitions. [2024-11-28 02:55:36,680 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 553 transitions. Word has length 34 [2024-11-28 02:55:36,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:36,681 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 553 transitions. [2024-11-28 02:55:36,681 INFO L472 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) [2024-11-28 02:55:36,681 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 553 transitions. [2024-11-28 02:55:36,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 02:55:36,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:36,682 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:36,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:55:36,682 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:55:36,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:36,683 INFO L85 PathProgramCache]: Analyzing trace with hash 987130598, now seen corresponding path program 1 times [2024-11-28 02:55:36,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:36,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317235588] [2024-11-28 02:55:36,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:36,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:41,243 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 02:55:41,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:41,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317235588] [2024-11-28 02:55:41,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317235588] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:41,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590835931] [2024-11-28 02:55:41,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:41,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:41,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:41,246 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:41,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:55:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:47,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 18052 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:55:47,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:47,608 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 02:55:47,608 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:47,879 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 02:55:47,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590835931] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:55:47,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:55:47,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-11-28 02:55:47,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194170372] [2024-11-28 02:55:47,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:47,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:55:47,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:47,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:55:47,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:55:47,881 INFO L87 Difference]: Start difference. First operand 405 states and 553 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 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) [2024-11-28 02:55:48,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:48,397 INFO L93 Difference]: Finished difference Result 814 states and 1116 transitions. [2024-11-28 02:55:48,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 02:55:48,398 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 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 38 [2024-11-28 02:55:48,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:48,400 INFO L225 Difference]: With dead ends: 814 [2024-11-28 02:55:48,401 INFO L226 Difference]: Without dead ends: 428 [2024-11-28 02:55:48,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:55:48,402 INFO L435 NwaCegarLoop]: 520 mSDtfsCounter, 7 mSDsluCounter, 4136 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4656 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:48,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4656 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:55:48,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-28 02:55:48,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2024-11-28 02:55:48,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 371 states have (on average 1.4851752021563343) internal successors, (551), 410 states have internal predecessors, (551), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:55:48,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 576 transitions. [2024-11-28 02:55:48,420 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 576 transitions. Word has length 38 [2024-11-28 02:55:48,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:48,421 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 576 transitions. [2024-11-28 02:55:48,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 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) [2024-11-28 02:55:48,421 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 576 transitions. [2024-11-28 02:55:48,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 02:55:48,427 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:48,427 INFO L218 NwaCegarLoop]: trace histogram [10, 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] [2024-11-28 02:55:48,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 02:55:48,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-28 02:55:48,628 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:55:48,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:48,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1554279436, now seen corresponding path program 1 times [2024-11-28 02:55:48,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:48,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942461419] [2024-11-28 02:55:48,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:48,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:53,140 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 02:55:53,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:53,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942461419] [2024-11-28 02:55:53,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942461419] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:53,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101498259] [2024-11-28 02:55:53,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:53,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:53,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:53,143 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:53,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:55:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:59,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 18149 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:55:59,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:59,259 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-28 02:55:59,259 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:55:59,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101498259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:59,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:59,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-28 02:55:59,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207790148] [2024-11-28 02:55:59,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:59,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:55:59,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:59,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:55:59,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:55:59,261 INFO L87 Difference]: Start difference. First operand 428 states and 576 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2024-11-28 02:55:59,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:59,326 INFO L93 Difference]: Finished difference Result 428 states and 576 transitions. [2024-11-28 02:55:59,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:55:59,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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 62 [2024-11-28 02:55:59,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:59,329 INFO L225 Difference]: With dead ends: 428 [2024-11-28 02:55:59,330 INFO L226 Difference]: Without dead ends: 427 [2024-11-28 02:55:59,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:55:59,331 INFO L435 NwaCegarLoop]: 522 mSDtfsCounter, 2 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1035 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 [2024-11-28 02:55:59,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1035 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:55:59,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-28 02:55:59,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2024-11-28 02:55:59,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 371 states have (on average 1.482479784366577) internal successors, (550), 409 states have internal predecessors, (550), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:55:59,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 575 transitions. [2024-11-28 02:55:59,347 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 575 transitions. Word has length 62 [2024-11-28 02:55:59,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:59,347 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 575 transitions. [2024-11-28 02:55:59,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2024-11-28 02:55:59,348 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 575 transitions. [2024-11-28 02:55:59,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 02:55:59,349 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:59,349 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:59,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 02:55:59,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 02:55:59,550 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:55:59,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:59,550 INFO L85 PathProgramCache]: Analyzing trace with hash 811296334, now seen corresponding path program 1 times [2024-11-28 02:55:59,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:59,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974220322] [2024-11-28 02:55:59,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:59,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:03,941 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 02:56:03,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:03,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974220322] [2024-11-28 02:56:03,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974220322] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:56:03,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793526823] [2024-11-28 02:56:03,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:03,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:03,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:03,944 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:56:03,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:56:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:09,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 18168 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:56:09,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:56:09,996 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 02:56:09,996 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:56:09,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793526823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:09,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:56:09,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-28 02:56:09,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938635196] [2024-11-28 02:56:09,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:09,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:56:09,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:09,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:56:10,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:56:10,000 INFO L87 Difference]: Start difference. First operand 427 states and 575 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-11-28 02:56:10,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:10,209 INFO L93 Difference]: Finished difference Result 727 states and 1014 transitions. [2024-11-28 02:56:10,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:56:10,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 62 [2024-11-28 02:56:10,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:10,213 INFO L225 Difference]: With dead ends: 727 [2024-11-28 02:56:10,214 INFO L226 Difference]: Without dead ends: 726 [2024-11-28 02:56:10,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:56:10,216 INFO L435 NwaCegarLoop]: 950 mSDtfsCounter, 833 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:10,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 1571 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:56:10,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-11-28 02:56:10,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 426. [2024-11-28 02:56:10,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 371 states have (on average 1.4797843665768193) internal successors, (549), 408 states have internal predecessors, (549), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:56:10,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 574 transitions. [2024-11-28 02:56:10,238 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 574 transitions. Word has length 62 [2024-11-28 02:56:10,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:10,240 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 574 transitions. [2024-11-28 02:56:10,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-11-28 02:56:10,240 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 574 transitions. [2024-11-28 02:56:10,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 02:56:10,241 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:10,241 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:10,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 02:56:10,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 02:56:10,442 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:56:10,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:10,442 INFO L85 PathProgramCache]: Analyzing trace with hash 937955085, now seen corresponding path program 1 times [2024-11-28 02:56:10,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:10,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771770933] [2024-11-28 02:56:10,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:10,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:14,305 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-28 02:56:14,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:14,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771770933] [2024-11-28 02:56:14,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771770933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:14,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:14,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:56:14,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873952150] [2024-11-28 02:56:14,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:14,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:56:14,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:14,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:56:14,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:56:14,307 INFO L87 Difference]: Start difference. First operand 426 states and 574 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 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) [2024-11-28 02:56:14,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:14,355 INFO L93 Difference]: Finished difference Result 426 states and 574 transitions. [2024-11-28 02:56:14,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:56:14,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 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 63 [2024-11-28 02:56:14,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:14,358 INFO L225 Difference]: With dead ends: 426 [2024-11-28 02:56:14,358 INFO L226 Difference]: Without dead ends: 425 [2024-11-28 02:56:14,358 INFO L434 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 [2024-11-28 02:56:14,359 INFO L435 NwaCegarLoop]: 523 mSDtfsCounter, 0 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:14,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1042 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:56:14,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-28 02:56:14,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 422. [2024-11-28 02:56:14,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 368 states have (on average 1.4809782608695652) internal successors, (545), 404 states have internal predecessors, (545), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:56:14,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 570 transitions. [2024-11-28 02:56:14,379 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 570 transitions. Word has length 63 [2024-11-28 02:56:14,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:14,379 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 570 transitions. [2024-11-28 02:56:14,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 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) [2024-11-28 02:56:14,380 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 570 transitions. [2024-11-28 02:56:14,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 02:56:14,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:14,381 INFO L218 NwaCegarLoop]: trace histogram [10, 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] [2024-11-28 02:56:14,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:56:14,381 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:56:14,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:14,383 INFO L85 PathProgramCache]: Analyzing trace with hash 938022611, now seen corresponding path program 1 times [2024-11-28 02:56:14,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:14,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199559360] [2024-11-28 02:56:14,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:14,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:19,359 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 02:56:19,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:19,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199559360] [2024-11-28 02:56:19,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199559360] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:56:19,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429640425] [2024-11-28 02:56:19,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:19,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:19,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:19,378 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:56:19,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:56:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:26,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 18150 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:56:26,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:56:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-28 02:56:26,350 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:56:26,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429640425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:26,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:56:26,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-28 02:56:26,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647975417] [2024-11-28 02:56:26,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:26,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:56:26,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:26,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:56:26,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:56:26,351 INFO L87 Difference]: Start difference. First operand 422 states and 570 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 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) [2024-11-28 02:56:26,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:26,419 INFO L93 Difference]: Finished difference Result 433 states and 583 transitions. [2024-11-28 02:56:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:56:26,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 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 63 [2024-11-28 02:56:26,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:26,422 INFO L225 Difference]: With dead ends: 433 [2024-11-28 02:56:26,422 INFO L226 Difference]: Without dead ends: 432 [2024-11-28 02:56:26,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:56:26,425 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 0 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:26,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1038 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:56:26,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-28 02:56:26,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2024-11-28 02:56:26,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 378 states have (on average 1.4735449735449735) internal successors, (557), 414 states have internal predecessors, (557), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:56:26,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 582 transitions. [2024-11-28 02:56:26,446 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 582 transitions. Word has length 63 [2024-11-28 02:56:26,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:26,447 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 582 transitions. [2024-11-28 02:56:26,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 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) [2024-11-28 02:56:26,447 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 582 transitions. [2024-11-28 02:56:26,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 02:56:26,447 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:26,448 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:26,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 02:56:26,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:26,650 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:56:26,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:26,650 INFO L85 PathProgramCache]: Analyzing trace with hash -619617053, now seen corresponding path program 1 times [2024-11-28 02:56:26,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:26,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907584237] [2024-11-28 02:56:26,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:26,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:31,870 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 02:56:31,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:31,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907584237] [2024-11-28 02:56:31,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907584237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:56:31,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636279398] [2024-11-28 02:56:31,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:31,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:31,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:31,876 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:56:31,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 02:56:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:38,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 18169 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:56:38,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:56:39,032 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 02:56:39,033 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:56:39,114 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 02:56:39,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636279398] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:56:39,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:56:39,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-28 02:56:39,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434295811] [2024-11-28 02:56:39,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:56:39,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:56:39,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:39,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:56:39,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:56:39,116 INFO L87 Difference]: Start difference. First operand 432 states and 582 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 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) [2024-11-28 02:56:39,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:39,427 INFO L93 Difference]: Finished difference Result 1629 states and 2336 transitions. [2024-11-28 02:56:39,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:56:39,428 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 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 63 [2024-11-28 02:56:39,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:39,441 INFO L225 Difference]: With dead ends: 1629 [2024-11-28 02:56:39,441 INFO L226 Difference]: Without dead ends: 1628 [2024-11-28 02:56:39,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:56:39,443 INFO L435 NwaCegarLoop]: 519 mSDtfsCounter, 2925 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2949 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:39,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2949 Valid, 2702 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:56:39,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2024-11-28 02:56:39,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 444. [2024-11-28 02:56:39,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 390 states have (on average 1.4666666666666666) internal successors, (572), 426 states have internal predecessors, (572), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:56:39,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 597 transitions. [2024-11-28 02:56:39,479 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 597 transitions. Word has length 63 [2024-11-28 02:56:39,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:39,480 INFO L471 AbstractCegarLoop]: Abstraction has 444 states and 597 transitions. [2024-11-28 02:56:39,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 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) [2024-11-28 02:56:39,480 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 597 transitions. [2024-11-28 02:56:39,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 02:56:39,481 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:39,481 INFO L218 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1, 1, 1] [2024-11-28 02:56:39,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 02:56:39,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 02:56:39,682 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:56:39,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:39,683 INFO L85 PathProgramCache]: Analyzing trace with hash -609944369, now seen corresponding path program 1 times [2024-11-28 02:56:39,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:39,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152837938] [2024-11-28 02:56:39,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:39,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:44,649 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 02:56:44,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:44,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152837938] [2024-11-28 02:56:44,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152837938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:44,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:44,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:56:44,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598657255] [2024-11-28 02:56:44,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:44,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:56:44,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:44,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:56:44,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:56:44,651 INFO L87 Difference]: Start difference. First operand 444 states and 597 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:56:44,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:44,907 INFO L93 Difference]: Finished difference Result 886 states and 1223 transitions. [2024-11-28 02:56:44,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:56:44,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 72 [2024-11-28 02:56:44,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:44,912 INFO L225 Difference]: With dead ends: 886 [2024-11-28 02:56:44,912 INFO L226 Difference]: Without dead ends: 541 [2024-11-28 02:56:44,913 INFO L434 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 [2024-11-28 02:56:44,914 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 121 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:44,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 972 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:56:44,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-28 02:56:44,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 487. [2024-11-28 02:56:44,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 432 states have (on average 1.4560185185185186) internal successors, (629), 468 states have internal predecessors, (629), 16 states have call successors, (16), 7 states have call predecessors, (16), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:56:45,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 656 transitions. [2024-11-28 02:56:45,036 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 656 transitions. Word has length 72 [2024-11-28 02:56:45,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:45,036 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 656 transitions. [2024-11-28 02:56:45,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:56:45,036 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 656 transitions. [2024-11-28 02:56:45,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 02:56:45,037 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:45,037 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:45,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:56:45,037 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:56:45,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:45,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1952261239, now seen corresponding path program 1 times [2024-11-28 02:56:45,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:45,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931239973] [2024-11-28 02:56:45,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:45,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:49,615 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-28 02:56:49,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:49,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931239973] [2024-11-28 02:56:49,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931239973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:56:49,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794384113] [2024-11-28 02:56:49,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:49,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:49,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:49,618 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:56:49,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 02:56:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:56,584 INFO L256 TraceCheckSpWp]: Trace formula consists of 18224 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:56:56,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:56:56,736 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-28 02:56:56,736 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:56:56,806 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-28 02:56:56,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794384113] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:56:56,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:56:56,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 02:56:56,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391552577] [2024-11-28 02:56:56,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:56:56,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:56:56,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:56,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:56:56,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:56:56,809 INFO L87 Difference]: Start difference. First operand 487 states and 656 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2024-11-28 02:56:56,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:56,903 INFO L93 Difference]: Finished difference Result 942 states and 1282 transitions. [2024-11-28 02:56:56,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:56:56,904 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 73 [2024-11-28 02:56:56,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:56,906 INFO L225 Difference]: With dead ends: 942 [2024-11-28 02:56:56,906 INFO L226 Difference]: Without dead ends: 511 [2024-11-28 02:56:56,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:56:56,908 INFO L435 NwaCegarLoop]: 523 mSDtfsCounter, 6 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:56,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1042 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:56:56,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-28 02:56:56,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2024-11-28 02:56:56,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 456 states have (on average 1.4320175438596492) internal successors, (653), 492 states have internal predecessors, (653), 16 states have call successors, (16), 7 states have call predecessors, (16), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:56:56,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 680 transitions. [2024-11-28 02:56:56,930 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 680 transitions. Word has length 73 [2024-11-28 02:56:56,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:56,931 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 680 transitions. [2024-11-28 02:56:56,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2024-11-28 02:56:56,931 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 680 transitions. [2024-11-28 02:56:56,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 02:56:56,932 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:56,932 INFO L218 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:56,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 02:56:57,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 02:56:57,132 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:56:57,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:57,133 INFO L85 PathProgramCache]: Analyzing trace with hash -2040973131, now seen corresponding path program 1 times [2024-11-28 02:56:57,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:57,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378544470] [2024-11-28 02:56:57,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:57,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:01,614 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 02:57:01,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:01,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378544470] [2024-11-28 02:57:01,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378544470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:01,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:01,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:57:01,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723849595] [2024-11-28 02:57:01,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:01,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:57:01,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:01,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:57:01,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:57:01,615 INFO L87 Difference]: Start difference. First operand 511 states and 680 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:57:01,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:01,663 INFO L93 Difference]: Finished difference Result 513 states and 680 transitions. [2024-11-28 02:57:01,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:57:01,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 74 [2024-11-28 02:57:01,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:01,666 INFO L225 Difference]: With dead ends: 513 [2024-11-28 02:57:01,667 INFO L226 Difference]: Without dead ends: 511 [2024-11-28 02:57:01,667 INFO L434 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 [2024-11-28 02:57:01,668 INFO L435 NwaCegarLoop]: 525 mSDtfsCounter, 1 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:01,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1044 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:57:01,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-28 02:57:01,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2024-11-28 02:57:01,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 456 states have (on average 1.4276315789473684) internal successors, (651), 492 states have internal predecessors, (651), 16 states have call successors, (16), 7 states have call predecessors, (16), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:57:01,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 678 transitions. [2024-11-28 02:57:01,691 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 678 transitions. Word has length 74 [2024-11-28 02:57:01,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:01,692 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 678 transitions. [2024-11-28 02:57:01,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:57:01,692 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 678 transitions. [2024-11-28 02:57:01,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 02:57:01,693 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:01,693 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:01,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 02:57:01,693 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:57:01,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:01,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1186213134, now seen corresponding path program 2 times [2024-11-28 02:57:01,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:01,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363039924] [2024-11-28 02:57:01,694 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:57:01,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:26,256 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:57:26,256 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:57:28,366 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-28 02:57:28,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:28,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363039924] [2024-11-28 02:57:28,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363039924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:57:28,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:57:28,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:57:28,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354758775] [2024-11-28 02:57:28,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:57:28,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:57:28,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:28,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:57:28,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:57:28,368 INFO L87 Difference]: Start difference. First operand 511 states and 678 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) [2024-11-28 02:57:28,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:28,589 INFO L93 Difference]: Finished difference Result 928 states and 1256 transitions. [2024-11-28 02:57:28,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:57:28,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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 75 [2024-11-28 02:57:28,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:28,592 INFO L225 Difference]: With dead ends: 928 [2024-11-28 02:57:28,592 INFO L226 Difference]: Without dead ends: 511 [2024-11-28 02:57:28,593 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:57:28,593 INFO L435 NwaCegarLoop]: 513 mSDtfsCounter, 470 mSDsluCounter, 1575 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:28,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 2088 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:57:28,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-28 02:57:28,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2024-11-28 02:57:28,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 456 states have (on average 1.4254385964912282) internal successors, (650), 492 states have internal predecessors, (650), 16 states have call successors, (16), 7 states have call predecessors, (16), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:57:28,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 677 transitions. [2024-11-28 02:57:28,618 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 677 transitions. Word has length 75 [2024-11-28 02:57:28,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:28,619 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 677 transitions. [2024-11-28 02:57:28,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) [2024-11-28 02:57:28,619 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 677 transitions. [2024-11-28 02:57:28,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 02:57:28,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:28,620 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 8, 8, 8, 8, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:28,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 02:57:28,621 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:57:28,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:28,621 INFO L85 PathProgramCache]: Analyzing trace with hash -706495187, now seen corresponding path program 2 times [2024-11-28 02:57:28,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:28,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619124220] [2024-11-28 02:57:28,622 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:57:28,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:32,306 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:57:32,307 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:57:33,176 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2024-11-28 02:57:33,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:33,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619124220] [2024-11-28 02:57:33,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619124220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:57:33,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438968099] [2024-11-28 02:57:33,177 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:57:33,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:57:33,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:57:33,179 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:57:33,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 02:57:40,449 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:57:40,449 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:57:40,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 17937 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:57:40,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:57:40,778 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2024-11-28 02:57:40,778 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:57:40,986 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2024-11-28 02:57:40,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438968099] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:57:40,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:57:40,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-28 02:57:40,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784147990] [2024-11-28 02:57:40,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:57:40,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:57:40,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:40,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:57:40,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:57:40,990 INFO L87 Difference]: Start difference. First operand 511 states and 677 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:57:41,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:41,124 INFO L93 Difference]: Finished difference Result 511 states and 677 transitions. [2024-11-28 02:57:41,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:57:41,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 97 [2024-11-28 02:57:41,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:41,127 INFO L225 Difference]: With dead ends: 511 [2024-11-28 02:57:41,127 INFO L226 Difference]: Without dead ends: 510 [2024-11-28 02:57:41,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:57:41,128 INFO L435 NwaCegarLoop]: 515 mSDtfsCounter, 449 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:41,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1639 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:57:41,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-28 02:57:41,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 489. [2024-11-28 02:57:41,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 435 states have (on average 1.4413793103448276) internal successors, (627), 470 states have internal predecessors, (627), 16 states have call successors, (16), 7 states have call predecessors, (16), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:57:41,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 654 transitions. [2024-11-28 02:57:41,149 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 654 transitions. Word has length 97 [2024-11-28 02:57:41,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:41,150 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 654 transitions. [2024-11-28 02:57:41,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:57:41,150 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 654 transitions. [2024-11-28 02:57:41,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 02:57:41,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:41,151 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:41,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 02:57:41,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:57:41,352 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:57:41,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:41,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1988396230, now seen corresponding path program 1 times [2024-11-28 02:57:41,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:41,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597869772] [2024-11-28 02:57:41,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:41,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:47,103 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-28 02:57:47,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:47,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597869772] [2024-11-28 02:57:47,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597869772] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:57:47,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553156530] [2024-11-28 02:57:47,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:47,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:57:47,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:57:47,106 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:57:47,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 02:57:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:55,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 18339 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:57:55,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:57:55,406 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-28 02:57:55,406 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:57:55,642 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-28 02:57:55,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553156530] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:57:55,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:57:55,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-28 02:57:55,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474590000] [2024-11-28 02:57:55,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:57:55,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 02:57:55,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:55,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 02:57:55,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:57:55,644 INFO L87 Difference]: Start difference. First operand 489 states and 654 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 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) [2024-11-28 02:57:55,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:55,841 INFO L93 Difference]: Finished difference Result 952 states and 1286 transitions. [2024-11-28 02:57:55,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:57:55,842 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 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 97 [2024-11-28 02:57:55,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:55,845 INFO L225 Difference]: With dead ends: 952 [2024-11-28 02:57:55,845 INFO L226 Difference]: Without dead ends: 513 [2024-11-28 02:57:55,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:57:55,847 INFO L435 NwaCegarLoop]: 522 mSDtfsCounter, 6 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3112 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:55,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3112 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:57:55,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-28 02:57:55,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 513. [2024-11-28 02:57:55,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 459 states have (on average 1.4183006535947713) internal successors, (651), 494 states have internal predecessors, (651), 16 states have call successors, (16), 7 states have call predecessors, (16), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:57:55,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 678 transitions. [2024-11-28 02:57:55,871 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 678 transitions. Word has length 97 [2024-11-28 02:57:55,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:55,871 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 678 transitions. [2024-11-28 02:57:55,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 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) [2024-11-28 02:57:55,872 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 678 transitions. [2024-11-28 02:57:55,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 02:57:55,873 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:55,873 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:55,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 02:57:56,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:57:56,074 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 02:57:56,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:56,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1595515742, now seen corresponding path program 2 times [2024-11-28 02:57:56,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:56,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564705540] [2024-11-28 02:57:56,075 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:57:56,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:58:27,640 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:58:27,640 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:58:29,387 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-28 02:58:29,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:58:29,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564705540] [2024-11-28 02:58:29,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564705540] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:58:29,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14703299] [2024-11-28 02:58:29,388 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:58:29,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:58:29,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:58:29,390 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:58:29,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:07:22,122 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:07:22,122 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:07:22,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 18477 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:07:22,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:22,352 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-28 03:07:22,352 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:07:22,566 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-28 03:07:22,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14703299] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:07:22,566 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:07:22,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-28 03:07:22,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946231913] [2024-11-28 03:07:22,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:07:22,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:07:22,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:22,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:07:22,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:07:22,568 INFO L87 Difference]: Start difference. First operand 513 states and 678 transitions. Second operand has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 13 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) [2024-11-28 03:07:23,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:23,285 INFO L93 Difference]: Finished difference Result 3928 states and 5624 transitions. [2024-11-28 03:07:23,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:07:23,286 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 13 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 121 [2024-11-28 03:07:23,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:23,302 INFO L225 Difference]: With dead ends: 3928 [2024-11-28 03:07:23,302 INFO L226 Difference]: Without dead ends: 3927 [2024-11-28 03:07:23,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:07:23,305 INFO L435 NwaCegarLoop]: 524 mSDtfsCounter, 5943 mSDsluCounter, 8026 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6003 SdHoareTripleChecker+Valid, 8550 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:23,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6003 Valid, 8550 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:07:23,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3927 states. [2024-11-28 03:07:23,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3927 to 537. [2024-11-28 03:07:23,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 483 states have (on average 1.4099378881987579) internal successors, (681), 518 states have internal predecessors, (681), 16 states have call successors, (16), 7 states have call predecessors, (16), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 03:07:23,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 708 transitions. [2024-11-28 03:07:23,367 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 708 transitions. Word has length 121 [2024-11-28 03:07:23,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:23,368 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 708 transitions. [2024-11-28 03:07:23,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 13 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) [2024-11-28 03:07:23,368 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 708 transitions. [2024-11-28 03:07:23,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:07:23,369 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:23,369 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:23,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 03:07:23,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 03:07:23,570 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 03:07:23,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:23,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1482557163, now seen corresponding path program 1 times [2024-11-28 03:07:23,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:23,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320688121] [2024-11-28 03:07:23,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:23,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:28,079 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-28 03:07:28,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:28,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320688121] [2024-11-28 03:07:28,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320688121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:28,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:28,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:07:28,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135908597] [2024-11-28 03:07:28,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:28,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:07:28,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:28,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:07:28,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:07:28,080 INFO L87 Difference]: Start difference. First operand 537 states and 708 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:07:28,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:28,348 INFO L93 Difference]: Finished difference Result 1046 states and 1449 transitions. [2024-11-28 03:07:28,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:07:28,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 126 [2024-11-28 03:07:28,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:28,356 INFO L225 Difference]: With dead ends: 1046 [2024-11-28 03:07:28,356 INFO L226 Difference]: Without dead ends: 758 [2024-11-28 03:07:28,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:07:28,358 INFO L435 NwaCegarLoop]: 503 mSDtfsCounter, 1114 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:28,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 989 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:07:28,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-11-28 03:07:28,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 538. [2024-11-28 03:07:28,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 484 states have (on average 1.4090909090909092) internal successors, (682), 519 states have internal predecessors, (682), 16 states have call successors, (16), 7 states have call predecessors, (16), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 03:07:28,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 709 transitions. [2024-11-28 03:07:28,391 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 709 transitions. Word has length 126 [2024-11-28 03:07:28,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:28,391 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 709 transitions. [2024-11-28 03:07:28,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:07:28,391 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 709 transitions. [2024-11-28 03:07:28,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:07:28,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:28,393 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:28,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:07:28,393 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 03:07:28,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:28,393 INFO L85 PathProgramCache]: Analyzing trace with hash 292450199, now seen corresponding path program 1 times [2024-11-28 03:07:28,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:28,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914481384] [2024-11-28 03:07:28,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:28,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:32,500 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-28 03:07:32,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:32,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914481384] [2024-11-28 03:07:32,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914481384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:32,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:32,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:07:32,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403827190] [2024-11-28 03:07:32,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:32,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:32,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:32,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:32,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:32,501 INFO L87 Difference]: Start difference. First operand 538 states and 709 transitions. Second operand has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:07:32,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:32,707 INFO L93 Difference]: Finished difference Result 593 states and 789 transitions. [2024-11-28 03:07:32,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:32,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 126 [2024-11-28 03:07:32,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:32,711 INFO L225 Difference]: With dead ends: 593 [2024-11-28 03:07:32,711 INFO L226 Difference]: Without dead ends: 588 [2024-11-28 03:07:32,711 INFO L434 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 [2024-11-28 03:07:32,712 INFO L435 NwaCegarLoop]: 492 mSDtfsCounter, 193 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:32,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 856 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:07:32,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-28 03:07:32,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 533. [2024-11-28 03:07:32,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 484 states have (on average 1.3987603305785123) internal successors, (677), 514 states have internal predecessors, (677), 16 states have call successors, (16), 7 states have call predecessors, (16), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 03:07:32,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 704 transitions. [2024-11-28 03:07:32,743 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 704 transitions. Word has length 126 [2024-11-28 03:07:32,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:32,744 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 704 transitions. [2024-11-28 03:07:32,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:07:32,744 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 704 transitions. [2024-11-28 03:07:32,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-28 03:07:32,749 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:32,750 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:32,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:07:32,750 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 03:07:32,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:32,750 INFO L85 PathProgramCache]: Analyzing trace with hash 476022245, now seen corresponding path program 1 times [2024-11-28 03:07:32,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:32,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731538913] [2024-11-28 03:07:32,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:32,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:36,917 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-28 03:07:36,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:36,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731538913] [2024-11-28 03:07:36,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731538913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:36,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:36,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:07:36,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668589050] [2024-11-28 03:07:36,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:36,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:36,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:36,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:36,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:36,919 INFO L87 Difference]: Start difference. First operand 533 states and 704 transitions. Second operand has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:07:37,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:37,124 INFO L93 Difference]: Finished difference Result 588 states and 784 transitions. [2024-11-28 03:07:37,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:37,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 127 [2024-11-28 03:07:37,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:37,126 INFO L225 Difference]: With dead ends: 588 [2024-11-28 03:07:37,126 INFO L226 Difference]: Without dead ends: 583 [2024-11-28 03:07:37,126 INFO L434 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 [2024-11-28 03:07:37,127 INFO L435 NwaCegarLoop]: 472 mSDtfsCounter, 191 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:37,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 867 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:07:37,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-28 03:07:37,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 516. [2024-11-28 03:07:37,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 472 states have (on average 1.3877118644067796) internal successors, (655), 497 states have internal predecessors, (655), 16 states have call successors, (16), 7 states have call predecessors, (16), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 03:07:37,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 682 transitions. [2024-11-28 03:07:37,154 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 682 transitions. Word has length 127 [2024-11-28 03:07:37,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:37,155 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 682 transitions. [2024-11-28 03:07:37,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:07:37,155 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 682 transitions. [2024-11-28 03:07:37,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 03:07:37,157 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:37,158 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:37,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:07:37,160 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 03:07:37,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:37,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1511024475, now seen corresponding path program 1 times [2024-11-28 03:07:37,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:37,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234935481] [2024-11-28 03:07:37,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:37,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:41,641 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-28 03:07:41,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:41,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234935481] [2024-11-28 03:07:41,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234935481] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:07:41,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303329294] [2024-11-28 03:07:41,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:41,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:41,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:41,645 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:07:41,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 03:07:48,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:48,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 18565 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:07:48,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:48,400 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-28 03:07:48,401 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:07:48,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303329294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:48,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:07:48,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-28 03:07:48,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645191594] [2024-11-28 03:07:48,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:48,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:07:48,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:48,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:07:48,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:48,402 INFO L87 Difference]: Start difference. First operand 516 states and 682 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:07:48,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:48,816 INFO L93 Difference]: Finished difference Result 976 states and 1338 transitions. [2024-11-28 03:07:48,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:07:48,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 129 [2024-11-28 03:07:48,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:48,818 INFO L225 Difference]: With dead ends: 976 [2024-11-28 03:07:48,818 INFO L226 Difference]: Without dead ends: 638 [2024-11-28 03:07:48,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:48,819 INFO L435 NwaCegarLoop]: 591 mSDtfsCounter, 359 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:48,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 1218 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:07:48,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-28 03:07:48,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 517. [2024-11-28 03:07:48,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 475 states have (on average 1.3810526315789473) internal successors, (656), 498 states have internal predecessors, (656), 16 states have call successors, (16), 7 states have call predecessors, (16), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 03:07:48,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 683 transitions. [2024-11-28 03:07:48,848 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 683 transitions. Word has length 129 [2024-11-28 03:07:48,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:48,849 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 683 transitions. [2024-11-28 03:07:48,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:07:48,849 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 683 transitions. [2024-11-28 03:07:48,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 03:07:48,851 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:48,851 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:48,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 03:07:49,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 03:07:49,052 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 03:07:49,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:49,053 INFO L85 PathProgramCache]: Analyzing trace with hash 622506781, now seen corresponding path program 1 times [2024-11-28 03:07:49,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:49,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808892726] [2024-11-28 03:07:49,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:49,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:53,281 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2024-11-28 03:07:53,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:53,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808892726] [2024-11-28 03:07:53,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808892726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:53,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:53,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:07:53,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277717549] [2024-11-28 03:07:53,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:53,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:53,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:53,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:53,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:53,283 INFO L87 Difference]: Start difference. First operand 517 states and 683 transitions. Second operand has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:07:53,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:53,336 INFO L93 Difference]: Finished difference Result 517 states and 683 transitions. [2024-11-28 03:07:53,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:53,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 132 [2024-11-28 03:07:53,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:53,338 INFO L225 Difference]: With dead ends: 517 [2024-11-28 03:07:53,338 INFO L226 Difference]: Without dead ends: 516 [2024-11-28 03:07:53,339 INFO L434 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 [2024-11-28 03:07:53,339 INFO L435 NwaCegarLoop]: 512 mSDtfsCounter, 1 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:53,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1018 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:07:53,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-11-28 03:07:53,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2024-11-28 03:07:53,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 475 states have (on average 1.3789473684210527) internal successors, (655), 497 states have internal predecessors, (655), 16 states have call successors, (16), 7 states have call predecessors, (16), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 03:07:53,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 682 transitions. [2024-11-28 03:07:53,365 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 682 transitions. Word has length 132 [2024-11-28 03:07:53,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:53,366 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 682 transitions. [2024-11-28 03:07:53,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:07:53,366 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 682 transitions. [2024-11-28 03:07:53,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 03:07:53,368 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:53,368 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:53,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:07:53,368 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 03:07:53,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:53,369 INFO L85 PathProgramCache]: Analyzing trace with hash 2117841448, now seen corresponding path program 1 times [2024-11-28 03:07:53,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:53,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869124296] [2024-11-28 03:07:53,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:53,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:23,601 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-28 03:08:23,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:08:23,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869124296] [2024-11-28 03:08:23,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869124296] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:08:23,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987115155] [2024-11-28 03:08:23,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:23,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:08:23,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:08:23,605 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:08:23,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 03:08:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:30,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 18570 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:08:30,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:08:30,596 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-11-28 03:08:30,596 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:08:30,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987115155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:08:30,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:08:30,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2024-11-28 03:08:30,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839867830] [2024-11-28 03:08:30,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:30,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:08:30,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:08:30,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:08:30,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:08:30,597 INFO L87 Difference]: Start difference. First operand 516 states and 682 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:08:30,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:30,666 INFO L93 Difference]: Finished difference Result 891 states and 1211 transitions. [2024-11-28 03:08:30,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:08:30,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 133 [2024-11-28 03:08:30,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:30,672 INFO L225 Difference]: With dead ends: 891 [2024-11-28 03:08:30,672 INFO L226 Difference]: Without dead ends: 519 [2024-11-28 03:08:30,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:08:30,674 INFO L435 NwaCegarLoop]: 509 mSDtfsCounter, 0 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:30,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1523 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:08:30,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-11-28 03:08:30,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 519. [2024-11-28 03:08:30,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 477 states have (on average 1.379454926624738) internal successors, (658), 500 states have internal predecessors, (658), 16 states have call successors, (16), 7 states have call predecessors, (16), 6 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14) [2024-11-28 03:08:30,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 688 transitions. [2024-11-28 03:08:30,705 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 688 transitions. Word has length 133 [2024-11-28 03:08:30,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:30,705 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 688 transitions. [2024-11-28 03:08:30,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:08:30,706 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 688 transitions. [2024-11-28 03:08:30,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 03:08:30,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:08:30,707 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:08:30,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 03:08:30,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c00957-4b35-4252-a8f6-02a8fff27242/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 03:08:30,908 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2024-11-28 03:08:30,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:30,908 INFO L85 PathProgramCache]: Analyzing trace with hash -92922292, now seen corresponding path program 1 times [2024-11-28 03:08:30,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:08:30,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878689973] [2024-11-28 03:08:30,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:30,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:08:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat