./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4bdfff36879874a6399b96a47b24759f6fa08750adc90ba43c136ab307fb0948 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:53:02,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:53:02,788 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 08:53:02,793 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:53:02,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:53:02,814 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:53:02,815 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:53:02,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:53:02,815 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:53:02,816 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:53:02,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:53:02,816 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:53:02,816 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:53:02,816 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:53:02,816 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:53:02,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:53:02,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:53:02,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:53:02,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:53:02,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:53:02,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:53:02,817 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:53:02,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:53:02,817 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:53:02,817 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:53:02,817 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:53:02,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:53:02,817 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:53:02,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:53:02,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:53:02,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:53:02,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:53:02,818 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:53:02,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:53:02,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:53:02,818 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:53:02,818 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:53:02,818 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:53:02,818 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:53:02,818 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:53:02,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:53:02,819 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:53:02,819 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:53:02,819 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:53:02,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:53:02,819 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_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1 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 ! call(reach_error())) ) 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 -> 4bdfff36879874a6399b96a47b24759f6fa08750adc90ba43c136ab307fb0948 [2024-12-02 08:53:03,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:53:03,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:53:03,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:53:03,055 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:53:03,055 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:53:03,057 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c [2024-12-02 08:53:05,792 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/data/3859e5781/ead8f6fc867b46b2818d863ef232e25a/FLAG4b1ea8e9a [2024-12-02 08:53:06,061 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:53:06,062 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c [2024-12-02 08:53:06,075 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/data/3859e5781/ead8f6fc867b46b2818d863ef232e25a/FLAG4b1ea8e9a [2024-12-02 08:53:06,089 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/data/3859e5781/ead8f6fc867b46b2818d863ef232e25a [2024-12-02 08:53:06,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:53:06,093 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:53:06,094 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:53:06,094 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:53:06,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:53:06,099 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:53:06" (1/1) ... [2024-12-02 08:53:06,100 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24ce5101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:06, skipping insertion in model container [2024-12-02 08:53:06,100 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:53:06" (1/1) ... [2024-12-02 08:53:06,144 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:53:06,296 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c[1175,1188] [2024-12-02 08:53:06,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:53:06,540 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:53:06,547 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c[1175,1188] [2024-12-02 08:53:06,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:53:06,704 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:53:06,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:06 WrapperNode [2024-12-02 08:53:06,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:53:06,705 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:53:06,705 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:53:06,705 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:53:06,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:06" (1/1) ... [2024-12-02 08:53:06,773 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:06" (1/1) ... [2024-12-02 08:53:07,196 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4637 [2024-12-02 08:53:07,196 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:53:07,196 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:53:07,196 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:53:07,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:53:07,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:06" (1/1) ... [2024-12-02 08:53:07,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:06" (1/1) ... [2024-12-02 08:53:07,287 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:06" (1/1) ... [2024-12-02 08:53:07,374 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 08:53:07,374 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:06" (1/1) ... [2024-12-02 08:53:07,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:06" (1/1) ... [2024-12-02 08:53:07,519 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:06" (1/1) ... [2024-12-02 08:53:07,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:06" (1/1) ... [2024-12-02 08:53:07,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:06" (1/1) ... [2024-12-02 08:53:07,599 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:06" (1/1) ... [2024-12-02 08:53:07,618 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:06" (1/1) ... [2024-12-02 08:53:07,703 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:53:07,704 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:53:07,704 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:53:07,704 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:53:07,708 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:06" (1/1) ... [2024-12-02 08:53:07,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:53:07,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:53:07,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:53:07,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:53:07,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:53:07,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:53:07,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:53:07,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:53:08,036 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:53:08,038 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:53:12,995 INFO L? ?]: Removed 2538 outVars from TransFormulas that were not future-live. [2024-12-02 08:53:12,995 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:53:13,041 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:53:13,042 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 08:53:13,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:53:13 BoogieIcfgContainer [2024-12-02 08:53:13,042 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:53:13,045 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:53:13,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:53:13,051 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:53:13,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:53:06" (1/3) ... [2024-12-02 08:53:13,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eab78e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:53:13, skipping insertion in model container [2024-12-02 08:53:13,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:06" (2/3) ... [2024-12-02 08:53:13,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eab78e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:53:13, skipping insertion in model container [2024-12-02 08:53:13,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:53:13" (3/3) ... [2024-12-02 08:53:13,055 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.2.prop1-func-interl.c [2024-12-02 08:53:13,074 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:53:13,076 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.anderson.2.prop1-func-interl.c that has 1 procedures, 1632 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:53:13,184 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:53:13,195 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;@785a0fe5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:53:13,196 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:53:13,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 1632 states, 1630 states have (on average 1.503680981595092) internal successors, (2451), 1631 states have internal predecessors, (2451), 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) [2024-12-02 08:53:13,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 08:53:13,212 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:13,212 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-12-02 08:53:13,213 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:13,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:13,219 INFO L85 PathProgramCache]: Analyzing trace with hash 456195606, now seen corresponding path program 1 times [2024-12-02 08:53:13,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:13,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402062445] [2024-12-02 08:53:13,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:13,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:13,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:13,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:13,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402062445] [2024-12-02 08:53:13,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402062445] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:13,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:13,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:53:13,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845024478] [2024-12-02 08:53:13,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:13,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:53:13,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:13,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:53:13,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:53:13,962 INFO L87 Difference]: Start difference. First operand has 1632 states, 1630 states have (on average 1.503680981595092) internal successors, (2451), 1631 states have internal predecessors, (2451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-12-02 08:53:14,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:14,113 INFO L93 Difference]: Finished difference Result 3169 states and 4763 transitions. [2024-12-02 08:53:14,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:53:14,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 79 [2024-12-02 08:53:14,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:14,132 INFO L225 Difference]: With dead ends: 3169 [2024-12-02 08:53:14,132 INFO L226 Difference]: Without dead ends: 1631 [2024-12-02 08:53:14,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:53:14,141 INFO L435 NwaCegarLoop]: 2445 mSDtfsCounter, 0 mSDsluCounter, 4884 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7329 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:14,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7329 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:14,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2024-12-02 08:53:14,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2024-12-02 08:53:14,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1630 states have (on average 1.5024539877300613) internal successors, (2449), 1630 states have internal predecessors, (2449), 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) [2024-12-02 08:53:14,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2449 transitions. [2024-12-02 08:53:14,222 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2449 transitions. Word has length 79 [2024-12-02 08:53:14,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:14,222 INFO L471 AbstractCegarLoop]: Abstraction has 1631 states and 2449 transitions. [2024-12-02 08:53:14,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-12-02 08:53:14,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2449 transitions. [2024-12-02 08:53:14,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 08:53:14,225 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:14,225 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-12-02 08:53:14,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:53:14,226 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:14,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:14,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1258857532, now seen corresponding path program 1 times [2024-12-02 08:53:14,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:14,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690948030] [2024-12-02 08:53:14,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:14,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:14,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:14,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:14,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690948030] [2024-12-02 08:53:14,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690948030] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:14,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:14,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:53:14,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103089897] [2024-12-02 08:53:14,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:14,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:53:14,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:14,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:53:14,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:53:14,456 INFO L87 Difference]: Start difference. First operand 1631 states and 2449 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2024-12-02 08:53:14,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:14,528 INFO L93 Difference]: Finished difference Result 3170 states and 4761 transitions. [2024-12-02 08:53:14,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:53:14,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 80 [2024-12-02 08:53:14,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:14,533 INFO L225 Difference]: With dead ends: 3170 [2024-12-02 08:53:14,534 INFO L226 Difference]: Without dead ends: 1633 [2024-12-02 08:53:14,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:53:14,536 INFO L435 NwaCegarLoop]: 2445 mSDtfsCounter, 0 mSDsluCounter, 4880 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7325 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 [2024-12-02 08:53:14,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7325 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:14,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-12-02 08:53:14,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1633. [2024-12-02 08:53:14,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1632 states have (on average 1.5018382352941178) internal successors, (2451), 1632 states have internal predecessors, (2451), 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) [2024-12-02 08:53:14,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2451 transitions. [2024-12-02 08:53:14,570 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2451 transitions. Word has length 80 [2024-12-02 08:53:14,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:14,571 INFO L471 AbstractCegarLoop]: Abstraction has 1633 states and 2451 transitions. [2024-12-02 08:53:14,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2024-12-02 08:53:14,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2451 transitions. [2024-12-02 08:53:14,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 08:53:14,574 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:14,574 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-12-02 08:53:14,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:53:14,574 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:14,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:14,575 INFO L85 PathProgramCache]: Analyzing trace with hash -728087633, now seen corresponding path program 1 times [2024-12-02 08:53:14,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:14,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146009508] [2024-12-02 08:53:14,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:14,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:14,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:14,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:14,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146009508] [2024-12-02 08:53:14,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146009508] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:14,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:14,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:53:14,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350413363] [2024-12-02 08:53:14,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:14,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:53:14,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:14,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:53:14,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:53:14,812 INFO L87 Difference]: Start difference. First operand 1633 states and 2451 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-12-02 08:53:14,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:14,877 INFO L93 Difference]: Finished difference Result 3174 states and 4765 transitions. [2024-12-02 08:53:14,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:53:14,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 81 [2024-12-02 08:53:14,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:14,883 INFO L225 Difference]: With dead ends: 3174 [2024-12-02 08:53:14,883 INFO L226 Difference]: Without dead ends: 1635 [2024-12-02 08:53:14,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:53:14,885 INFO L435 NwaCegarLoop]: 2445 mSDtfsCounter, 0 mSDsluCounter, 4874 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7319 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:14,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7319 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:14,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2024-12-02 08:53:14,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1635. [2024-12-02 08:53:14,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1634 states have (on average 1.5012239902080784) internal successors, (2453), 1634 states have internal predecessors, (2453), 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) [2024-12-02 08:53:14,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2453 transitions. [2024-12-02 08:53:14,913 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2453 transitions. Word has length 81 [2024-12-02 08:53:14,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:14,913 INFO L471 AbstractCegarLoop]: Abstraction has 1635 states and 2453 transitions. [2024-12-02 08:53:14,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-12-02 08:53:14,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2453 transitions. [2024-12-02 08:53:14,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 08:53:14,915 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:14,915 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-12-02 08:53:14,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:53:14,915 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:14,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:14,916 INFO L85 PathProgramCache]: Analyzing trace with hash -186992861, now seen corresponding path program 1 times [2024-12-02 08:53:14,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:14,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801276448] [2024-12-02 08:53:14,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:14,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:15,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:15,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:15,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801276448] [2024-12-02 08:53:15,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801276448] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:15,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:15,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:53:15,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102767936] [2024-12-02 08:53:15,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:15,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:53:15,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:15,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:53:15,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:53:15,098 INFO L87 Difference]: Start difference. First operand 1635 states and 2453 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2024-12-02 08:53:15,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:15,164 INFO L93 Difference]: Finished difference Result 3184 states and 4777 transitions. [2024-12-02 08:53:15,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:53:15,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 82 [2024-12-02 08:53:15,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:15,169 INFO L225 Difference]: With dead ends: 3184 [2024-12-02 08:53:15,170 INFO L226 Difference]: Without dead ends: 1643 [2024-12-02 08:53:15,171 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:53:15,172 INFO L435 NwaCegarLoop]: 2445 mSDtfsCounter, 3 mSDsluCounter, 4874 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7319 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:15,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7319 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:15,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2024-12-02 08:53:15,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1639. [2024-12-02 08:53:15,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1639 states, 1638 states have (on average 1.5012210012210012) internal successors, (2459), 1638 states have internal predecessors, (2459), 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) [2024-12-02 08:53:15,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2459 transitions. [2024-12-02 08:53:15,200 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2459 transitions. Word has length 82 [2024-12-02 08:53:15,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:15,200 INFO L471 AbstractCegarLoop]: Abstraction has 1639 states and 2459 transitions. [2024-12-02 08:53:15,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2024-12-02 08:53:15,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2459 transitions. [2024-12-02 08:53:15,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 08:53:15,201 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:15,202 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-12-02 08:53:15,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:53:15,202 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:15,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:15,202 INFO L85 PathProgramCache]: Analyzing trace with hash -387617720, now seen corresponding path program 1 times [2024-12-02 08:53:15,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:15,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261313464] [2024-12-02 08:53:15,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:15,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:15,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:15,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:15,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261313464] [2024-12-02 08:53:15,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261313464] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:15,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:15,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:53:15,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202568711] [2024-12-02 08:53:15,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:15,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:53:15,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:15,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:53:15,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:53:15,470 INFO L87 Difference]: Start difference. First operand 1639 states and 2459 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2024-12-02 08:53:17,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:17,775 INFO L93 Difference]: Finished difference Result 4713 states and 7073 transitions. [2024-12-02 08:53:17,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:53:17,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 83 [2024-12-02 08:53:17,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:17,785 INFO L225 Difference]: With dead ends: 4713 [2024-12-02 08:53:17,786 INFO L226 Difference]: Without dead ends: 3168 [2024-12-02 08:53:17,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:53:17,788 INFO L435 NwaCegarLoop]: 1896 mSDtfsCounter, 2359 mSDsluCounter, 5584 mSDsCounter, 0 mSdLazyCounter, 2169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2359 SdHoareTripleChecker+Valid, 7480 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:17,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2359 Valid, 7480 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2169 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 08:53:17,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3168 states. [2024-12-02 08:53:17,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3168 to 1682. [2024-12-02 08:53:17,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1682 states, 1681 states have (on average 1.5002974419988102) internal successors, (2522), 1681 states have internal predecessors, (2522), 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) [2024-12-02 08:53:17,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2522 transitions. [2024-12-02 08:53:17,830 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2522 transitions. Word has length 83 [2024-12-02 08:53:17,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:17,831 INFO L471 AbstractCegarLoop]: Abstraction has 1682 states and 2522 transitions. [2024-12-02 08:53:17,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2024-12-02 08:53:17,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2522 transitions. [2024-12-02 08:53:17,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:53:17,832 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:17,832 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-12-02 08:53:17,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:53:17,832 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:17,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:17,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1102737222, now seen corresponding path program 1 times [2024-12-02 08:53:17,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:17,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482419656] [2024-12-02 08:53:17,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:17,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:18,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:18,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:18,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482419656] [2024-12-02 08:53:18,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482419656] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:18,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:18,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:53:18,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175189935] [2024-12-02 08:53:18,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:18,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:53:18,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:18,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:53:18,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:53:18,236 INFO L87 Difference]: Start difference. First operand 1682 states and 2522 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2024-12-02 08:53:19,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:19,806 INFO L93 Difference]: Finished difference Result 3242 states and 4862 transitions. [2024-12-02 08:53:19,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:53:19,806 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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 84 [2024-12-02 08:53:19,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:19,811 INFO L225 Difference]: With dead ends: 3242 [2024-12-02 08:53:19,812 INFO L226 Difference]: Without dead ends: 1697 [2024-12-02 08:53:19,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:53:19,814 INFO L435 NwaCegarLoop]: 1877 mSDtfsCounter, 2392 mSDsluCounter, 5617 mSDsCounter, 0 mSdLazyCounter, 2293 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2392 SdHoareTripleChecker+Valid, 7494 SdHoareTripleChecker+Invalid, 2294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:19,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2392 Valid, 7494 Invalid, 2294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2293 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 08:53:19,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2024-12-02 08:53:19,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1695. [2024-12-02 08:53:19,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1694 states have (on average 1.4976387249114522) internal successors, (2537), 1694 states have internal predecessors, (2537), 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) [2024-12-02 08:53:19,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2537 transitions. [2024-12-02 08:53:19,850 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2537 transitions. Word has length 84 [2024-12-02 08:53:19,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:19,850 INFO L471 AbstractCegarLoop]: Abstraction has 1695 states and 2537 transitions. [2024-12-02 08:53:19,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2024-12-02 08:53:19,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2537 transitions. [2024-12-02 08:53:19,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 08:53:19,851 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:19,851 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-12-02 08:53:19,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:53:19,851 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:19,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:19,852 INFO L85 PathProgramCache]: Analyzing trace with hash 144462281, now seen corresponding path program 1 times [2024-12-02 08:53:19,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:19,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070379691] [2024-12-02 08:53:19,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:19,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:53:19,917 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:53:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:53:20,020 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 08:53:20,021 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 08:53:20,022 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:53:20,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:53:20,028 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:20,088 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:53:20,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:53:20 BoogieIcfgContainer [2024-12-02 08:53:20,091 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:53:20,092 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:53:20,092 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:53:20,092 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:53:20,093 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:53:13" (3/4) ... [2024-12-02 08:53:20,096 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 08:53:20,097 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:53:20,098 INFO L158 Benchmark]: Toolchain (without parser) took 14005.02ms. Allocated memory was 117.4MB in the beginning and 503.3MB in the end (delta: 385.9MB). Free memory was 90.5MB in the beginning and 249.9MB in the end (delta: -159.3MB). Peak memory consumption was 228.5MB. Max. memory is 16.1GB. [2024-12-02 08:53:20,098 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:53:20,098 INFO L158 Benchmark]: CACSL2BoogieTranslator took 610.93ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 70.8MB in the end (delta: 19.7MB). Peak memory consumption was 76.6MB. Max. memory is 16.1GB. [2024-12-02 08:53:20,099 INFO L158 Benchmark]: Boogie Procedure Inliner took 490.77ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 70.8MB in the beginning and 91.9MB in the end (delta: -21.1MB). Peak memory consumption was 166.7MB. Max. memory is 16.1GB. [2024-12-02 08:53:20,099 INFO L158 Benchmark]: Boogie Preprocessor took 506.91ms. Allocated memory was 201.3MB in the beginning and 419.4MB in the end (delta: 218.1MB). Free memory was 91.9MB in the beginning and 287.3MB in the end (delta: -195.4MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. [2024-12-02 08:53:20,100 INFO L158 Benchmark]: RCFGBuilder took 5338.45ms. Allocated memory was 419.4MB in the beginning and 536.9MB in the end (delta: 117.4MB). Free memory was 287.3MB in the beginning and 346.1MB in the end (delta: -58.8MB). Peak memory consumption was 325.3MB. Max. memory is 16.1GB. [2024-12-02 08:53:20,100 INFO L158 Benchmark]: TraceAbstraction took 7046.33ms. Allocated memory was 536.9MB in the beginning and 503.3MB in the end (delta: -33.6MB). Free memory was 346.1MB in the beginning and 249.9MB in the end (delta: 96.2MB). Peak memory consumption was 62.6MB. Max. memory is 16.1GB. [2024-12-02 08:53:20,100 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 503.3MB. Free memory was 249.9MB in the beginning and 249.9MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:53:20,102 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 610.93ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 70.8MB in the end (delta: 19.7MB). Peak memory consumption was 76.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 490.77ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 70.8MB in the beginning and 91.9MB in the end (delta: -21.1MB). Peak memory consumption was 166.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 506.91ms. Allocated memory was 201.3MB in the beginning and 419.4MB in the end (delta: 218.1MB). Free memory was 91.9MB in the beginning and 287.3MB in the end (delta: -195.4MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. * RCFGBuilder took 5338.45ms. Allocated memory was 419.4MB in the beginning and 536.9MB in the end (delta: 117.4MB). Free memory was 287.3MB in the beginning and 346.1MB in the end (delta: -58.8MB). Peak memory consumption was 325.3MB. Max. memory is 16.1GB. * TraceAbstraction took 7046.33ms. Allocated memory was 536.9MB in the beginning and 503.3MB in the end (delta: -33.6MB). Free memory was 346.1MB in the beginning and 249.9MB in the end (delta: 96.2MB). Peak memory consumption was 62.6MB. Max. memory is 16.1GB. * Witness Printer took 4.95ms. Allocated memory is still 503.3MB. Free memory was 249.9MB in the beginning and 249.9MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 194, overapproximation of bitwiseAnd at line 192. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L30] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L32] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L33] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L35] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L36] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L38] const SORT_2 var_5 = 0; [L39] const SORT_1 var_20 = 0; [L40] const SORT_4 var_53 = 1; [L41] const SORT_4 var_54 = 0; [L42] const SORT_2 var_63 = 1; [L43] const SORT_3 var_65 = 0; [L44] const SORT_4 var_68 = 3; [L45] const SORT_2 var_72 = 0; [L46] const SORT_4 var_122 = 2; [L47] const SORT_2 var_125 = 2; [L49] SORT_1 input_64; [L50] SORT_1 input_74; [L51] SORT_1 input_76; [L52] SORT_1 input_83; [L53] SORT_1 input_85; [L54] SORT_1 input_92; [L55] SORT_1 input_143; [L56] SORT_1 input_147; [L57] SORT_1 input_150; [L58] SORT_1 input_151; [L59] SORT_1 input_152; [L60] SORT_1 input_153; [L61] SORT_1 input_161; [L62] SORT_1 input_167; [L63] SORT_1 input_173; [L64] SORT_1 input_188; [L65] SORT_1 input_206; [L66] SORT_1 input_224; [L68] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L68] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L69] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L69] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L70] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L70] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L71] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L71] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L72] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L72] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L73] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L74] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L74] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L75] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L76] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L77] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L78] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L79] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L80] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L81] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L82] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L83] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L84] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L85] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L86] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L87] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L88] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L89] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_122=2, var_125=2, var_20=0, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_72=0] [L90] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L92] SORT_2 init_7_arg_1 = var_5; [L93] state_6 = init_7_arg_1 [L94] SORT_2 init_9_arg_1 = var_5; [L95] state_8 = init_9_arg_1 [L96] SORT_2 init_11_arg_1 = var_5; [L97] state_10 = init_11_arg_1 [L98] SORT_2 init_13_arg_1 = var_5; [L99] state_12 = init_13_arg_1 [L100] SORT_2 init_15_arg_1 = var_5; [L101] state_14 = init_15_arg_1 [L102] SORT_2 init_17_arg_1 = var_5; [L103] state_16 = init_17_arg_1 [L104] SORT_2 init_19_arg_1 = var_5; [L105] state_18 = init_19_arg_1 [L106] SORT_1 init_22_arg_1 = var_20; [L107] state_21 = init_22_arg_1 [L108] SORT_1 init_24_arg_1 = var_20; [L109] state_23 = init_24_arg_1 [L110] SORT_1 init_26_arg_1 = var_20; [L111] state_25 = init_26_arg_1 [L112] SORT_1 init_28_arg_1 = var_20; [L113] state_27 = init_28_arg_1 [L114] SORT_1 init_30_arg_1 = var_20; [L115] state_29 = init_30_arg_1 [L116] SORT_1 init_32_arg_1 = var_20; [L117] state_31 = init_32_arg_1 [L118] SORT_1 init_34_arg_1 = var_20; [L119] state_33 = init_34_arg_1 [L120] SORT_1 init_36_arg_1 = var_20; [L121] state_35 = init_36_arg_1 [L122] SORT_1 init_38_arg_1 = var_20; [L123] state_37 = init_38_arg_1 [L124] SORT_1 init_40_arg_1 = var_20; [L125] state_39 = init_40_arg_1 [L126] SORT_1 init_42_arg_1 = var_20; [L127] state_41 = init_42_arg_1 [L128] SORT_1 init_44_arg_1 = var_20; [L129] state_43 = init_44_arg_1 [L130] SORT_1 init_46_arg_1 = var_20; [L131] state_45 = init_46_arg_1 [L132] SORT_1 init_48_arg_1 = var_20; [L133] state_47 = init_48_arg_1 [L134] SORT_1 init_50_arg_1 = var_20; [L135] state_49 = init_50_arg_1 [L136] SORT_1 init_52_arg_1 = var_20; [L137] state_51 = init_52_arg_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L140] input_64 = __VERIFIER_nondet_uchar() [L141] input_74 = __VERIFIER_nondet_uchar() [L142] input_76 = __VERIFIER_nondet_uchar() [L143] input_83 = __VERIFIER_nondet_uchar() [L144] input_85 = __VERIFIER_nondet_uchar() [L145] input_92 = __VERIFIER_nondet_uchar() [L146] input_143 = __VERIFIER_nondet_uchar() [L147] EXPR input_143 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L147] input_143 = input_143 & mask_SORT_1 [L148] input_147 = __VERIFIER_nondet_uchar() [L149] EXPR input_147 & mask_SORT_1 VAL [input_143=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L149] input_147 = input_147 & mask_SORT_1 [L150] input_150 = __VERIFIER_nondet_uchar() [L151] EXPR input_150 & mask_SORT_1 VAL [input_143=0, input_147=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L151] input_150 = input_150 & mask_SORT_1 [L152] input_151 = __VERIFIER_nondet_uchar() [L153] EXPR input_151 & mask_SORT_1 VAL [input_143=0, input_147=0, input_150=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L153] input_151 = input_151 & mask_SORT_1 [L154] input_152 = __VERIFIER_nondet_uchar() [L155] EXPR input_152 & mask_SORT_1 VAL [input_143=0, input_147=0, input_150=0, input_151=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L155] input_152 = input_152 & mask_SORT_1 [L156] input_153 = __VERIFIER_nondet_uchar() [L157] EXPR input_153 & mask_SORT_1 VAL [input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L157] input_153 = input_153 & mask_SORT_1 [L158] input_161 = __VERIFIER_nondet_uchar() [L159] EXPR input_161 & mask_SORT_1 VAL [input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L159] input_161 = input_161 & mask_SORT_1 [L160] input_167 = __VERIFIER_nondet_uchar() [L161] EXPR input_167 & mask_SORT_1 VAL [input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L161] input_167 = input_167 & mask_SORT_1 [L162] input_173 = __VERIFIER_nondet_uchar() [L163] EXPR input_173 & mask_SORT_1 VAL [input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L163] input_173 = input_173 & mask_SORT_1 [L164] input_188 = __VERIFIER_nondet_uchar() [L165] input_206 = __VERIFIER_nondet_uchar() [L166] input_224 = __VERIFIER_nondet_uchar() [L169] SORT_1 var_55_arg_0 = state_29; [L170] SORT_4 var_55_arg_1 = var_53; [L171] SORT_4 var_55_arg_2 = var_54; [L172] SORT_4 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L173] SORT_1 var_56_arg_0 = state_39; [L174] SORT_4 var_56_arg_1 = var_53; [L175] SORT_4 var_56_arg_2 = var_54; [L176] SORT_4 var_56 = var_56_arg_0 ? var_56_arg_1 : var_56_arg_2; [L177] SORT_4 var_57_arg_0 = var_55; [L178] SORT_4 var_57_arg_1 = var_56; [L179] SORT_4 var_57 = var_57_arg_0 + var_57_arg_1; [L180] SORT_1 var_58_arg_0 = state_49; [L181] SORT_4 var_58_arg_1 = var_53; [L182] SORT_4 var_58_arg_2 = var_54; [L183] SORT_4 var_58 = var_58_arg_0 ? var_58_arg_1 : var_58_arg_2; [L184] SORT_4 var_59_arg_0 = var_57; [L185] SORT_4 var_59_arg_1 = var_58; [L186] SORT_4 var_59 = var_59_arg_0 + var_59_arg_1; VAL [input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_173=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_59=0, var_63=1, var_65=0, var_68=3, var_72=0] [L187] EXPR var_59 & mask_SORT_4 VAL [input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_173=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L187] var_59 = var_59 & mask_SORT_4 [L188] SORT_4 var_60_arg_0 = var_59; [L189] SORT_4 var_60_arg_1 = var_53; [L190] SORT_1 var_60 = var_60_arg_0 <= var_60_arg_1; [L191] SORT_1 var_61_arg_0 = ~state_51; VAL [input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_173=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_60=1, var_61_arg_0=-1, var_63=1, var_65=0, var_68=3, var_72=0] [L192] EXPR var_61_arg_0 & mask_SORT_1 VAL [input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_173=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_60=1, var_63=1, var_65=0, var_68=3, var_72=0] [L192] var_61_arg_0 = var_61_arg_0 & mask_SORT_1 [L193] SORT_1 var_61_arg_1 = ~var_60; VAL [input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_173=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_61_arg_0=1, var_61_arg_1=-2, var_63=1, var_65=0, var_68=3, var_72=0] [L194] EXPR var_61_arg_1 & mask_SORT_1 VAL [input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_173=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_61_arg_0=1, var_63=1, var_65=0, var_68=3, var_72=0] [L194] var_61_arg_1 = var_61_arg_1 & mask_SORT_1 [L195] EXPR var_61_arg_0 & var_61_arg_1 VAL [input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_173=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L195] SORT_1 var_61 = var_61_arg_0 & var_61_arg_1; [L196] EXPR var_61 & mask_SORT_1 VAL [input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_173=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L196] var_61 = var_61 & mask_SORT_1 [L197] SORT_1 bad_62_arg_0 = var_61; [L198] CALL __VERIFIER_assert(!(bad_62_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1632 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4754 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4754 mSDsluCounter, 44266 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30713 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4530 IncrementalHoareTripleChecker+Invalid, 4532 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 13553 mSDtfsCounter, 4530 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1695occurred in iteration=6, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 1492 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 574 NumberOfCodeBlocks, 574 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 483 ConstructedInterpolants, 0 QuantifiedInterpolants, 1369 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 08:53:20,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4bdfff36879874a6399b96a47b24759f6fa08750adc90ba43c136ab307fb0948 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:53:22,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:53:22,460 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-12-02 08:53:22,467 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:53:22,468 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:53:22,493 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:53:22,493 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:53:22,494 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:53:22,494 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:53:22,494 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:53:22,494 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:53:22,494 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:53:22,495 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:53:22,495 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:53:22,495 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:53:22,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:53:22,495 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:53:22,495 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:53:22,496 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:53:22,496 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:53:22,496 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:53:22,496 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 08:53:22,496 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 08:53:22,496 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 08:53:22,496 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:53:22,496 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:53:22,496 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:53:22,496 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:53:22,496 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:53:22,496 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:53:22,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:53:22,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:53:22,497 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:53:22,497 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:53:22,497 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:53:22,497 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:53:22,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:53:22,497 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:53:22,497 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:53:22,498 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:53:22,498 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:53:22,498 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 08:53:22,498 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 08:53:22,498 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:53:22,498 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:53:22,498 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:53:22,498 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:53:22,498 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_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1 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 ! call(reach_error())) ) 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 -> 4bdfff36879874a6399b96a47b24759f6fa08750adc90ba43c136ab307fb0948 [2024-12-02 08:53:22,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:53:22,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:53:22,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:53:22,770 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:53:22,770 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:53:22,772 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c [2024-12-02 08:53:25,851 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/data/b0d952712/cd8859bc5cfa486db0c3401b9daf8f1f/FLAGf58066198 [2024-12-02 08:53:26,140 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:53:26,140 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c [2024-12-02 08:53:26,158 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/data/b0d952712/cd8859bc5cfa486db0c3401b9daf8f1f/FLAGf58066198 [2024-12-02 08:53:26,176 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/data/b0d952712/cd8859bc5cfa486db0c3401b9daf8f1f [2024-12-02 08:53:26,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:53:26,180 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:53:26,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:53:26,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:53:26,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:53:26,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:53:26" (1/1) ... [2024-12-02 08:53:26,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f9c416f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:26, skipping insertion in model container [2024-12-02 08:53:26,187 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:53:26" (1/1) ... [2024-12-02 08:53:26,228 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:53:26,416 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c[1175,1188] [2024-12-02 08:53:26,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:53:26,668 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:53:26,678 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c[1175,1188] [2024-12-02 08:53:26,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:53:26,795 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:53:26,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:26 WrapperNode [2024-12-02 08:53:26,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:53:26,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:53:26,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:53:26,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:53:26,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:26" (1/1) ... [2024-12-02 08:53:26,824 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:26" (1/1) ... [2024-12-02 08:53:26,892 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1369 [2024-12-02 08:53:26,892 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:53:26,893 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:53:26,893 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:53:26,893 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:53:26,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:26" (1/1) ... [2024-12-02 08:53:26,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:26" (1/1) ... [2024-12-02 08:53:26,915 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:26" (1/1) ... [2024-12-02 08:53:26,945 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 08:53:26,945 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:26" (1/1) ... [2024-12-02 08:53:26,945 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:26" (1/1) ... [2024-12-02 08:53:26,997 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:26" (1/1) ... [2024-12-02 08:53:27,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:26" (1/1) ... [2024-12-02 08:53:27,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:26" (1/1) ... [2024-12-02 08:53:27,009 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:26" (1/1) ... [2024-12-02 08:53:27,014 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:26" (1/1) ... [2024-12-02 08:53:27,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:53:27,027 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:53:27,027 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:53:27,027 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:53:27,028 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:26" (1/1) ... [2024-12-02 08:53:27,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:53:27,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:53:27,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:53:27,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:53:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 08:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:53:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:53:27,388 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:53:27,390 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:53:29,697 INFO L? ?]: Removed 77 outVars from TransFormulas that were not future-live. [2024-12-02 08:53:29,697 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:53:29,706 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:53:29,707 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 08:53:29,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:53:29 BoogieIcfgContainer [2024-12-02 08:53:29,707 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:53:29,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:53:29,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:53:29,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:53:29,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:53:26" (1/3) ... [2024-12-02 08:53:29,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3afaa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:53:29, skipping insertion in model container [2024-12-02 08:53:29,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:26" (2/3) ... [2024-12-02 08:53:29,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3afaa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:53:29, skipping insertion in model container [2024-12-02 08:53:29,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:53:29" (3/3) ... [2024-12-02 08:53:29,718 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.2.prop1-func-interl.c [2024-12-02 08:53:29,735 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:53:29,737 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.anderson.2.prop1-func-interl.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:53:29,791 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:53:29,805 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;@33720434, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:53:29,806 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:53:29,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:53:29,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-02 08:53:29,815 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:29,816 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 08:53:29,816 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:29,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:29,822 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-12-02 08:53:29,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:53:29,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1176497613] [2024-12-02 08:53:29,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:29,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:53:29,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:53:29,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:53:29,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:53:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:30,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 08:53:30,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:53:30,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:30,578 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:53:30,579 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:53:30,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176497613] [2024-12-02 08:53:30,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176497613] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:30,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:30,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:53:30,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632101725] [2024-12-02 08:53:30,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:30,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:53:30,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:53:30,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:53:30,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:53:30,604 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2024-12-02 08:53:31,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:31,349 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-12-02 08:53:31,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:53:31,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 [2024-12-02 08:53:31,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:31,357 INFO L225 Difference]: With dead ends: 18 [2024-12-02 08:53:31,357 INFO L226 Difference]: Without dead ends: 10 [2024-12-02 08:53:31,360 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 [2024-12-02 08:53:31,363 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:31,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:53:31,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-12-02 08:53:31,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-12-02 08:53:31,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2024-12-02 08:53:31,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-12-02 08:53:31,389 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-12-02 08:53:31,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:31,389 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-12-02 08:53:31,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2024-12-02 08:53:31,390 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-12-02 08:53:31,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-02 08:53:31,390 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:31,390 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:31,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:53:31,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:53:31,591 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:31,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:31,592 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-12-02 08:53:31,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:53:31,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [922786671] [2024-12-02 08:53:31,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:31,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:53:31,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:53:31,597 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:53:31,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6510b03-5c6b-4636-90cc-14606bfd6af8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:53:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:32,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-12-02 08:53:32,250 INFO L279 TraceCheckSpWp]: Computing forward predicates...