./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', '56f86b4cab001f7d30235f7e21f0d2866e7fb9bade2974e05f17edebfb7e1bb0'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 56f86b4cab001f7d30235f7e21f0d2866e7fb9bade2974e05f17edebfb7e1bb0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 02:56:47,858 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 02:56:47,963 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 02:56:47,971 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 02:56:47,972 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 02:56:48,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 02:56:48,002 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 02:56:48,002 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 02:56:48,002 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 02:56:48,002 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 02:56:48,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 02:56:48,003 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 02:56:48,003 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 02:56:48,003 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 02:56:48,003 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 02:56:48,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 02:56:48,003 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 02:56:48,004 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 02:56:48,004 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 02:56:48,004 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 02:56:48,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 02:56:48,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 02:56:48,004 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 02:56:48,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 02:56:48,004 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 02:56:48,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 02:56:48,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 02:56:48,005 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 02:56:48,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 02:56:48,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 02:56:48,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 02:56:48,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 02:56:48,006 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 02:56:48,006 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 02:56:48,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 02:56:48,006 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 02:56:48,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 02:56:48,007 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 02:56:48,007 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 02:56:48,007 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> 56f86b4cab001f7d30235f7e21f0d2866e7fb9bade2974e05f17edebfb7e1bb0 [2024-11-07 02:56:48,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 02:56:48,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 02:56:48,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 02:56:48,316 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 02:56:48,317 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 02:56:48,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c [2024-11-07 02:56:49,628 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 02:56:49,966 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 02:56:49,967 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c [2024-11-07 02:56:49,983 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ecf40726b/b871eb180e224a7988f4a901dd5cbf1c/FLAG09b97fa78 [2024-11-07 02:56:50,212 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ecf40726b/b871eb180e224a7988f4a901dd5cbf1c [2024-11-07 02:56:50,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 02:56:50,218 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 02:56:50,220 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 02:56:50,220 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 02:56:50,224 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 02:56:50,225 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:56:50" (1/1) ... [2024-11-07 02:56:50,226 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ef2a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50, skipping insertion in model container [2024-11-07 02:56:50,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:56:50" (1/1) ... [2024-11-07 02:56:50,273 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 02:56:50,435 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c[1246,1259] [2024-11-07 02:56:50,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 02:56:50,678 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 02:56:50,685 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c[1246,1259] [2024-11-07 02:56:50,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 02:56:50,824 INFO L204 MainTranslator]: Completed translation [2024-11-07 02:56:50,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50 WrapperNode [2024-11-07 02:56:50,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 02:56:50,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 02:56:50,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 02:56:50,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 02:56:50,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2024-11-07 02:56:50,870 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2024-11-07 02:56:51,089 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1934 [2024-11-07 02:56:51,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 02:56:51,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 02:56:51,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 02:56:51,092 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 02:56:51,099 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2024-11-07 02:56:51,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2024-11-07 02:56:51,139 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2024-11-07 02:56:51,254 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]. [2024-11-07 02:56:51,254 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2024-11-07 02:56:51,254 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2024-11-07 02:56:51,320 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2024-11-07 02:56:51,338 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2024-11-07 02:56:51,360 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2024-11-07 02:56:51,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2024-11-07 02:56:51,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 02:56:51,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 02:56:51,455 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 02:56:51,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 02:56:51,457 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2024-11-07 02:56:51,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 02:56:51,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:56:51,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 02:56:51,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 02:56:51,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 02:56:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 02:56:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 02:56:51,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 02:56:51,882 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 02:56:51,884 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 02:56:54,010 INFO L? ?]: Removed 1109 outVars from TransFormulas that were not future-live. [2024-11-07 02:56:54,010 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 02:56:54,031 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 02:56:54,032 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 02:56:54,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:56:54 BoogieIcfgContainer [2024-11-07 02:56:54,032 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 02:56:54,035 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 02:56:54,035 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 02:56:54,040 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 02:56:54,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:56:50" (1/3) ... [2024-11-07 02:56:54,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6becc3ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:56:54, skipping insertion in model container [2024-11-07 02:56:54,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (2/3) ... [2024-11-07 02:56:54,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6becc3ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:56:54, skipping insertion in model container [2024-11-07 02:56:54,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:56:54" (3/3) ... [2024-11-07 02:56:54,042 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_FIFO.c [2024-11-07 02:56:54,054 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 02:56:54,055 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 02:56:54,121 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 02:56:54,132 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;@34e60c3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 02:56:54,134 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 02:56:54,140 INFO L276 IsEmpty]: Start isEmpty. Operand has 538 states, 536 states have (on average 1.498134328358209) internal successors, (803), 537 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:56:54,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-07 02:56:54,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:56:54,172 INFO L215 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] [2024-11-07 02:56:54,173 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:56:54,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:56:54,178 INFO L85 PathProgramCache]: Analyzing trace with hash -2060732644, now seen corresponding path program 1 times [2024-11-07 02:56:54,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:56:54,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801073454] [2024-11-07 02:56:54,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:56:54,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:56:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:56:55,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:56:55,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:56:55,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801073454] [2024-11-07 02:56:55,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801073454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:56:55,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:56:55,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:56:55,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198293450] [2024-11-07 02:56:55,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:56:55,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:56:55,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:56:55,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:56:55,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:56:55,370 INFO L87 Difference]: Start difference. First operand has 538 states, 536 states have (on average 1.498134328358209) internal successors, (803), 537 states have internal predecessors, (803), 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 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:56:55,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:56:55,481 INFO L93 Difference]: Finished difference Result 1013 states and 1515 transitions. [2024-11-07 02:56:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:56:55,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 69 [2024-11-07 02:56:55,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:56:55,495 INFO L225 Difference]: With dead ends: 1013 [2024-11-07 02:56:55,495 INFO L226 Difference]: Without dead ends: 537 [2024-11-07 02:56:55,499 INFO L431 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 [2024-11-07 02:56:55,501 INFO L432 NwaCegarLoop]: 797 mSDtfsCounter, 0 mSDsluCounter, 1588 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2385 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 [2024-11-07 02:56:55,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2385 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:56:55,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-07 02:56:55,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2024-11-07 02:56:55,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 536 states have (on average 1.4944029850746268) internal successors, (801), 536 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:56:55,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 801 transitions. [2024-11-07 02:56:55,555 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 801 transitions. Word has length 69 [2024-11-07 02:56:55,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:56:55,556 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 801 transitions. [2024-11-07 02:56:55,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:56:55,557 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 801 transitions. [2024-11-07 02:56:55,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-07 02:56:55,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:56:55,558 INFO L215 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] [2024-11-07 02:56:55,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 02:56:55,559 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:56:55,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:56:55,560 INFO L85 PathProgramCache]: Analyzing trace with hash 543493045, now seen corresponding path program 1 times [2024-11-07 02:56:55,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:56:55,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543321356] [2024-11-07 02:56:55,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:56:55,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:56:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:56:55,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:56:55,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:56:55,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543321356] [2024-11-07 02:56:55,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543321356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:56:55,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:56:55,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:56:55,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964296983] [2024-11-07 02:56:55,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:56:55,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:56:55,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:56:55,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:56:55,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:56:55,934 INFO L87 Difference]: Start difference. First operand 537 states and 801 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:56:55,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:56:55,980 INFO L93 Difference]: Finished difference Result 1014 states and 1513 transitions. [2024-11-07 02:56:55,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:56:55,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 70 [2024-11-07 02:56:55,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:56:55,985 INFO L225 Difference]: With dead ends: 1014 [2024-11-07 02:56:55,985 INFO L226 Difference]: Without dead ends: 539 [2024-11-07 02:56:55,986 INFO L431 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 [2024-11-07 02:56:55,991 INFO L432 NwaCegarLoop]: 797 mSDtfsCounter, 0 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2381 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:56:55,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2381 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:56:55,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-07 02:56:56,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2024-11-07 02:56:56,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 538 states have (on average 1.4925650557620818) internal successors, (803), 538 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:56:56,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 803 transitions. [2024-11-07 02:56:56,021 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 803 transitions. Word has length 70 [2024-11-07 02:56:56,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:56:56,021 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 803 transitions. [2024-11-07 02:56:56,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:56:56,022 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 803 transitions. [2024-11-07 02:56:56,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-07 02:56:56,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:56:56,025 INFO L215 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] [2024-11-07 02:56:56,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 02:56:56,026 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:56:56,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:56:56,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1429550315, now seen corresponding path program 1 times [2024-11-07 02:56:56,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:56:56,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97540256] [2024-11-07 02:56:56,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:56:56,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:56:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:56:56,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:56:56,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:56:56,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97540256] [2024-11-07 02:56:56,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97540256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:56:56,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:56:56,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:56:56,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876282613] [2024-11-07 02:56:56,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:56:56,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:56:56,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:56:56,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:56:56,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:56:56,655 INFO L87 Difference]: Start difference. First operand 539 states and 803 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:56:56,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:56:56,748 INFO L93 Difference]: Finished difference Result 1014 states and 1512 transitions. [2024-11-07 02:56:56,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:56:56,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 71 [2024-11-07 02:56:56,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:56:56,755 INFO L225 Difference]: With dead ends: 1014 [2024-11-07 02:56:56,755 INFO L226 Difference]: Without dead ends: 537 [2024-11-07 02:56:56,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:56:56,757 INFO L432 NwaCegarLoop]: 787 mSDtfsCounter, 736 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:56:56,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 1573 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:56:56,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-07 02:56:56,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2024-11-07 02:56:56,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 536 states have (on average 1.4906716417910448) internal successors, (799), 536 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:56:56,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 799 transitions. [2024-11-07 02:56:56,783 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 799 transitions. Word has length 71 [2024-11-07 02:56:56,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:56:56,783 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 799 transitions. [2024-11-07 02:56:56,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:56:56,784 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 799 transitions. [2024-11-07 02:56:56,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-07 02:56:56,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:56:56,789 INFO L215 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] [2024-11-07 02:56:56,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 02:56:56,789 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:56:56,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:56:56,789 INFO L85 PathProgramCache]: Analyzing trace with hash 198158712, now seen corresponding path program 1 times [2024-11-07 02:56:56,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:56:56,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041910971] [2024-11-07 02:56:56,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:56:56,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:56:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:56:57,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:56:57,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:56:57,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041910971] [2024-11-07 02:56:57,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041910971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:56:57,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:56:57,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:56:57,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612216365] [2024-11-07 02:56:57,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:56:57,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:56:57,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:56:57,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:56:57,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:56:57,772 INFO L87 Difference]: Start difference. First operand 537 states and 799 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:56:57,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:56:57,928 INFO L93 Difference]: Finished difference Result 1143 states and 1697 transitions. [2024-11-07 02:56:57,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:56:57,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 72 [2024-11-07 02:56:57,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:56:57,931 INFO L225 Difference]: With dead ends: 1143 [2024-11-07 02:56:57,932 INFO L226 Difference]: Without dead ends: 668 [2024-11-07 02:56:57,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:56:57,934 INFO L432 NwaCegarLoop]: 777 mSDtfsCounter, 1141 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 2328 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:56:57,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1141 Valid, 2328 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:56:57,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-07 02:56:57,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 543. [2024-11-07 02:56:57,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 542 states have (on average 1.488929889298893) internal successors, (807), 542 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:56:57,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 807 transitions. [2024-11-07 02:56:57,952 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 807 transitions. Word has length 72 [2024-11-07 02:56:57,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:56:57,952 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 807 transitions. [2024-11-07 02:56:57,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:56:57,953 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 807 transitions. [2024-11-07 02:56:57,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-07 02:56:57,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:56:57,956 INFO L215 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] [2024-11-07 02:56:57,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 02:56:57,957 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:56:57,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:56:57,957 INFO L85 PathProgramCache]: Analyzing trace with hash -652779274, now seen corresponding path program 1 times [2024-11-07 02:56:57,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:56:57,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981229082] [2024-11-07 02:56:57,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:56:57,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:56:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:56:58,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:56:58,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:56:58,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981229082] [2024-11-07 02:56:58,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981229082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:56:58,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:56:58,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:56:58,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619753695] [2024-11-07 02:56:58,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:56:58,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:56:58,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:56:58,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:56:58,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:56:58,278 INFO L87 Difference]: Start difference. First operand 543 states and 807 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:56:58,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:56:58,839 INFO L93 Difference]: Finished difference Result 1411 states and 2100 transitions. [2024-11-07 02:56:58,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 02:56:58,839 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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 73 [2024-11-07 02:56:58,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:56:58,844 INFO L225 Difference]: With dead ends: 1411 [2024-11-07 02:56:58,844 INFO L226 Difference]: Without dead ends: 547 [2024-11-07 02:56:58,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:56:58,849 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 509 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 3581 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 02:56:58,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 3581 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 02:56:58,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-07 02:56:58,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 545. [2024-11-07 02:56:58,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 544 states have (on average 1.4871323529411764) internal successors, (809), 544 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:56:58,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 809 transitions. [2024-11-07 02:56:58,901 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 809 transitions. Word has length 73 [2024-11-07 02:56:58,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:56:58,902 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 809 transitions. [2024-11-07 02:56:58,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:56:58,902 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 809 transitions. [2024-11-07 02:56:58,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-07 02:56:58,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:56:58,903 INFO L215 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] [2024-11-07 02:56:58,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 02:56:58,903 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:56:58,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:56:58,905 INFO L85 PathProgramCache]: Analyzing trace with hash -272755781, now seen corresponding path program 1 times [2024-11-07 02:56:58,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:56:58,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575200423] [2024-11-07 02:56:58,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:56:58,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:56:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:00,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:00,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:00,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575200423] [2024-11-07 02:57:00,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575200423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:00,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:00,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 02:57:00,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475011218] [2024-11-07 02:57:00,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:00,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 02:57:00,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:00,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 02:57:00,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-07 02:57:00,370 INFO L87 Difference]: Start difference. First operand 545 states and 809 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:00,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:00,594 INFO L93 Difference]: Finished difference Result 1238 states and 1828 transitions. [2024-11-07 02:57:00,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 02:57:00,595 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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 74 [2024-11-07 02:57:00,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:00,598 INFO L225 Difference]: With dead ends: 1238 [2024-11-07 02:57:00,598 INFO L226 Difference]: Without dead ends: 761 [2024-11-07 02:57:00,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-07 02:57:00,599 INFO L432 NwaCegarLoop]: 779 mSDtfsCounter, 1479 mSDsluCounter, 2616 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 3395 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:00,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 3395 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:00,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-11-07 02:57:00,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 553. [2024-11-07 02:57:00,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 552 states have (on average 1.483695652173913) internal successors, (819), 552 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:00,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 819 transitions. [2024-11-07 02:57:00,621 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 819 transitions. Word has length 74 [2024-11-07 02:57:00,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:00,622 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 819 transitions. [2024-11-07 02:57:00,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:00,622 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 819 transitions. [2024-11-07 02:57:00,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-07 02:57:00,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:00,623 INFO L215 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] [2024-11-07 02:57:00,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 02:57:00,623 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:00,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:00,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1679795681, now seen corresponding path program 1 times [2024-11-07 02:57:00,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:00,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348956697] [2024-11-07 02:57:00,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:00,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:01,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:01,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:01,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348956697] [2024-11-07 02:57:01,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348956697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:01,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:01,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:01,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117668419] [2024-11-07 02:57:01,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:01,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:01,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:01,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:01,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:01,004 INFO L87 Difference]: Start difference. First operand 553 states and 819 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:01,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:01,106 INFO L93 Difference]: Finished difference Result 1167 states and 1728 transitions. [2024-11-07 02:57:01,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:01,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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 74 [2024-11-07 02:57:01,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:01,110 INFO L225 Difference]: With dead ends: 1167 [2024-11-07 02:57:01,110 INFO L226 Difference]: Without dead ends: 690 [2024-11-07 02:57:01,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:01,112 INFO L432 NwaCegarLoop]: 784 mSDtfsCounter, 1174 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:01,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1174 Valid, 2350 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:01,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-07 02:57:01,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 554. [2024-11-07 02:57:01,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 553 states have (on average 1.481012658227848) internal successors, (819), 553 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:01,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 819 transitions. [2024-11-07 02:57:01,129 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 819 transitions. Word has length 74 [2024-11-07 02:57:01,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:01,130 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 819 transitions. [2024-11-07 02:57:01,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:01,130 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 819 transitions. [2024-11-07 02:57:01,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-07 02:57:01,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:01,131 INFO L215 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] [2024-11-07 02:57:01,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 02:57:01,131 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:01,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:01,132 INFO L85 PathProgramCache]: Analyzing trace with hash 446877345, now seen corresponding path program 1 times [2024-11-07 02:57:01,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:01,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272136427] [2024-11-07 02:57:01,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:01,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:02,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:02,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:02,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272136427] [2024-11-07 02:57:02,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272136427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:02,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:02,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 02:57:02,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938818108] [2024-11-07 02:57:02,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:02,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 02:57:02,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:02,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 02:57:02,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-07 02:57:02,046 INFO L87 Difference]: Start difference. First operand 554 states and 819 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:02,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:02,475 INFO L93 Difference]: Finished difference Result 1210 states and 1790 transitions. [2024-11-07 02:57:02,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 02:57:02,476 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 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 75 [2024-11-07 02:57:02,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:02,479 INFO L225 Difference]: With dead ends: 1210 [2024-11-07 02:57:02,479 INFO L226 Difference]: Without dead ends: 733 [2024-11-07 02:57:02,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2024-11-07 02:57:02,481 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 1279 mSDsluCounter, 5588 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 6359 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:02,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 6359 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 02:57:02,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-11-07 02:57:02,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 599. [2024-11-07 02:57:02,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 598 states have (on average 1.4816053511705685) internal successors, (886), 598 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:02,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 886 transitions. [2024-11-07 02:57:02,497 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 886 transitions. Word has length 75 [2024-11-07 02:57:02,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:02,497 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 886 transitions. [2024-11-07 02:57:02,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:02,498 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 886 transitions. [2024-11-07 02:57:02,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-07 02:57:02,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:02,498 INFO L215 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] [2024-11-07 02:57:02,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 02:57:02,499 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:02,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:02,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1510998010, now seen corresponding path program 1 times [2024-11-07 02:57:02,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:02,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465388765] [2024-11-07 02:57:02,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:02,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 02:57:02,629 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 02:57:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 02:57:02,790 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 02:57:02,790 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 02:57:02,791 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-07 02:57:02,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 02:57:02,795 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:02,893 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 02:57:02,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:57:02 BoogieIcfgContainer [2024-11-07 02:57:02,897 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 02:57:02,898 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 02:57:02,898 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 02:57:02,898 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 02:57:02,899 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:56:54" (3/4) ... [2024-11-07 02:57:02,901 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-07 02:57:02,902 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 02:57:02,902 INFO L158 Benchmark]: Toolchain (without parser) took 12685.00ms. Allocated memory was 100.7MB in the beginning and 444.6MB in the end (delta: 343.9MB). Free memory was 76.1MB in the beginning and 235.2MB in the end (delta: -159.0MB). Peak memory consumption was 185.2MB. Max. memory is 16.1GB. [2024-11-07 02:57:02,903 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 48.0MB in the beginning and 47.9MB in the end (delta: 82.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 02:57:02,906 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.75ms. Allocated memory is still 100.7MB. Free memory was 76.1MB in the beginning and 39.4MB in the end (delta: 36.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-07 02:57:02,906 INFO L158 Benchmark]: Boogie Procedure Inliner took 264.53ms. Allocated memory was 100.7MB in the beginning and 109.1MB in the end (delta: 8.4MB). Free memory was 39.4MB in the beginning and 58.3MB in the end (delta: -18.9MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2024-11-07 02:57:02,906 INFO L158 Benchmark]: Boogie Preprocessor took 358.78ms. Allocated memory is still 109.1MB. Free memory was 58.3MB in the beginning and 47.1MB in the end (delta: 11.2MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2024-11-07 02:57:02,906 INFO L158 Benchmark]: RCFGBuilder took 2577.31ms. Allocated memory was 109.1MB in the beginning and 234.9MB in the end (delta: 125.8MB). Free memory was 47.1MB in the beginning and 59.4MB in the end (delta: -12.4MB). Peak memory consumption was 112.3MB. Max. memory is 16.1GB. [2024-11-07 02:57:02,907 INFO L158 Benchmark]: TraceAbstraction took 8861.95ms. Allocated memory was 234.9MB in the beginning and 444.6MB in the end (delta: 209.7MB). Free memory was 59.4MB in the beginning and 235.2MB in the end (delta: -175.8MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2024-11-07 02:57:02,907 INFO L158 Benchmark]: Witness Printer took 4.04ms. Allocated memory is still 444.6MB. Free memory was 235.2MB in the beginning and 235.2MB in the end (delta: 20.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 02:57:02,908 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 48.0MB in the beginning and 47.9MB in the end (delta: 82.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.75ms. Allocated memory is still 100.7MB. Free memory was 76.1MB in the beginning and 39.4MB in the end (delta: 36.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 264.53ms. Allocated memory was 100.7MB in the beginning and 109.1MB in the end (delta: 8.4MB). Free memory was 39.4MB in the beginning and 58.3MB in the end (delta: -18.9MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 358.78ms. Allocated memory is still 109.1MB. Free memory was 58.3MB in the beginning and 47.1MB in the end (delta: 11.2MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2577.31ms. Allocated memory was 109.1MB in the beginning and 234.9MB in the end (delta: 125.8MB). Free memory was 47.1MB in the beginning and 59.4MB in the end (delta: -12.4MB). Peak memory consumption was 112.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8861.95ms. Allocated memory was 234.9MB in the beginning and 444.6MB in the end (delta: 209.7MB). Free memory was 59.4MB in the beginning and 235.2MB in the end (delta: -175.8MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Witness Printer took 4.04ms. Allocated memory is still 444.6MB. Free memory was 235.2MB in the beginning and 235.2MB in the end (delta: 20.8kB). 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 263. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 4); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (4 - 1); [L29] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 1); [L30] const SORT_5 msb_SORT_5 = (SORT_5)1 << (1 - 1); [L32] const SORT_13 mask_SORT_13 = (SORT_13)-1 >> (sizeof(SORT_13) * 8 - 32); [L33] const SORT_13 msb_SORT_13 = (SORT_13)1 << (32 - 1); [L35] const SORT_36 mask_SORT_36 = (SORT_36)-1 >> (sizeof(SORT_36) * 8 - 3); [L36] const SORT_36 msb_SORT_36 = (SORT_36)1 << (3 - 1); [L38] const SORT_206 mask_SORT_206 = (SORT_206)-1 >> (sizeof(SORT_206) * 8 - 2); [L39] const SORT_206 msb_SORT_206 = (SORT_206)1 << (2 - 1); [L41] const SORT_1 var_10 = 0; [L42] const SORT_13 var_15 = 4; [L43] const SORT_5 var_22 = 1; [L44] const SORT_36 var_38 = 1; [L45] const SORT_36 var_43 = 2; [L46] const SORT_36 var_50 = 4; [L47] const SORT_36 var_53 = 3; [L48] const SORT_13 var_81 = 1; [L49] const SORT_13 var_101 = 0; [L50] const SORT_5 var_149 = 0; [L51] const SORT_1 var_186 = 15; [L53] SORT_1 input_2; [L54] SORT_1 input_3; [L55] SORT_1 input_4; [L56] SORT_5 input_6; [L57] SORT_1 input_7; [L58] SORT_5 input_8; [L59] SORT_5 input_9; [L60] SORT_13 input_94; [L61] SORT_1 input_96; [L62] SORT_1 input_107; [L63] SORT_1 input_112; [L64] SORT_1 input_114; [L65] SORT_1 input_129; [L66] SORT_5 input_140; [L67] SORT_5 input_144; [L68] SORT_5 input_147; [L69] SORT_5 input_152; [L70] SORT_5 input_155; [L71] SORT_5 input_158; [L72] SORT_1 input_173; [L73] SORT_1 input_176; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L75] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L76] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L77] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L78] SORT_5 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L79] SORT_5 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L80] SORT_1 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L81] SORT_1 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L82] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L83] SORT_1 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L84] SORT_1 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L85] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L86] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L87] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L88] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L89] SORT_1 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] SORT_1 init_12_arg_1 = var_10; [L92] state_11 = init_12_arg_1 [L93] SORT_1 init_18_arg_1 = var_10; [L94] state_17 = init_18_arg_1 [L95] SORT_1 init_20_arg_1 = var_10; [L96] state_19 = init_20_arg_1 [L97] SORT_5 init_24_arg_1 = var_22; [L98] state_23 = init_24_arg_1 [L99] SORT_5 init_29_arg_1 = var_22; [L100] state_28 = init_29_arg_1 [L101] SORT_1 init_33_arg_1 = var_10; [L102] state_32 = init_33_arg_1 [L103] SORT_1 init_35_arg_1 = var_10; [L104] state_34 = init_35_arg_1 [L105] SORT_1 init_42_arg_1 = var_10; [L106] state_41 = init_42_arg_1 [L107] SORT_1 init_47_arg_1 = var_10; [L108] state_46 = init_47_arg_1 [L109] SORT_1 init_49_arg_1 = var_10; [L110] state_48 = init_49_arg_1 [L111] SORT_1 init_58_arg_1 = var_10; [L112] state_57 = init_58_arg_1 [L113] SORT_1 init_60_arg_1 = var_10; [L114] state_59 = init_60_arg_1 [L115] SORT_1 init_64_arg_1 = var_10; [L116] state_63 = init_64_arg_1 [L117] SORT_1 init_66_arg_1 = var_10; [L118] state_65 = init_66_arg_1 [L119] SORT_1 init_71_arg_1 = var_10; [L120] state_70 = init_71_arg_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L123] input_2 = __VERIFIER_nondet_uchar() [L124] input_3 = __VERIFIER_nondet_uchar() [L125] input_4 = __VERIFIER_nondet_uchar() [L126] input_6 = __VERIFIER_nondet_uchar() [L127] input_7 = __VERIFIER_nondet_uchar() [L128] input_8 = __VERIFIER_nondet_uchar() [L129] input_9 = __VERIFIER_nondet_uchar() [L130] input_94 = __VERIFIER_nondet_uint() [L131] input_96 = __VERIFIER_nondet_uchar() [L132] input_107 = __VERIFIER_nondet_uchar() [L133] input_112 = __VERIFIER_nondet_uchar() [L134] input_114 = __VERIFIER_nondet_uchar() [L135] input_129 = __VERIFIER_nondet_uchar() [L136] input_140 = __VERIFIER_nondet_uchar() [L137] input_144 = __VERIFIER_nondet_uchar() [L138] input_147 = __VERIFIER_nondet_uchar() [L139] input_152 = __VERIFIER_nondet_uchar() [L140] input_155 = __VERIFIER_nondet_uchar() [L141] input_158 = __VERIFIER_nondet_uchar() [L142] input_173 = __VERIFIER_nondet_uchar() [L143] input_176 = __VERIFIER_nondet_uchar() [L146] SORT_1 var_14_arg_0 = state_11; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_14_arg_0=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L147] EXPR var_14_arg_0 & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L147] var_14_arg_0 = var_14_arg_0 & mask_SORT_1 [L148] SORT_13 var_14 = var_14_arg_0; [L149] SORT_13 var_16_arg_0 = var_14; [L150] SORT_13 var_16_arg_1 = var_15; [L151] SORT_5 var_16 = var_16_arg_0 == var_16_arg_1; [L152] SORT_1 var_21_arg_0 = state_17; [L153] SORT_1 var_21_arg_1 = state_19; [L154] SORT_5 var_21 = var_21_arg_0 == var_21_arg_1; [L155] SORT_5 var_25_arg_0 = state_23; [L156] SORT_5 var_25 = ~var_25_arg_0; [L157] SORT_5 var_26_arg_0 = var_21; [L158] SORT_5 var_26_arg_1 = var_25; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26_arg_0=1, var_26_arg_1=-2, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L159] EXPR var_26_arg_0 & var_26_arg_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L159] SORT_5 var_26 = var_26_arg_0 & var_26_arg_1; [L160] EXPR var_26 & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L160] var_26 = var_26 & mask_SORT_5 [L161] SORT_5 var_27_arg_0 = var_16; [L162] SORT_5 var_27_arg_1 = var_26; [L163] SORT_5 var_27 = var_27_arg_0 == var_27_arg_1; [L164] SORT_5 var_30_arg_0 = state_28; [L165] SORT_5 var_30_arg_1 = state_23; [L166] SORT_5 var_30 = var_30_arg_0 == var_30_arg_1; [L167] SORT_5 var_31_arg_0 = var_27; [L168] SORT_5 var_31_arg_1 = var_30; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31_arg_0=0, var_31_arg_1=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L169] EXPR var_31_arg_0 & var_31_arg_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L169] SORT_5 var_31 = var_31_arg_0 & var_31_arg_1; [L170] SORT_1 var_37_arg_0 = state_11; [L171] SORT_36 var_37 = var_37_arg_0 >> 0; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_37=0, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L172] EXPR var_37 & mask_SORT_36 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L172] var_37 = var_37 & mask_SORT_36 [L173] SORT_36 var_54_arg_0 = var_37; [L174] SORT_36 var_54_arg_1 = var_53; [L175] SORT_5 var_54 = var_54_arg_0 == var_54_arg_1; [L176] SORT_36 var_51_arg_0 = var_37; [L177] SORT_36 var_51_arg_1 = var_50; [L178] SORT_5 var_51 = var_51_arg_0 == var_51_arg_1; [L179] SORT_5 var_55_arg_0 = var_54; [L180] SORT_5 var_55_arg_1 = var_51; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_37=0, var_38=1, var_43=2, var_50=4, var_51=0, var_53=3, var_55_arg_0=0, var_55_arg_1=0, var_81=1] [L181] EXPR var_55_arg_0 | var_55_arg_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_37=0, var_38=1, var_43=2, var_50=4, var_51=0, var_53=3, var_81=1] [L181] SORT_5 var_55 = var_55_arg_0 | var_55_arg_1; [L182] EXPR var_55 & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_37=0, var_38=1, var_43=2, var_50=4, var_51=0, var_53=3, var_81=1] [L182] var_55 = var_55 & mask_SORT_5 [L183] SORT_5 var_52_arg_0 = var_51; [L184] SORT_1 var_52_arg_1 = state_48; [L185] SORT_1 var_52_arg_2 = state_46; [L186] SORT_1 var_52 = var_52_arg_0 ? var_52_arg_1 : var_52_arg_2; [L187] SORT_36 var_44_arg_0 = var_37; [L188] SORT_36 var_44_arg_1 = var_43; [L189] SORT_5 var_44 = var_44_arg_0 == var_44_arg_1; [L190] SORT_36 var_39_arg_0 = var_37; [L191] SORT_36 var_39_arg_1 = var_38; [L192] SORT_5 var_39 = var_39_arg_0 == var_39_arg_1; [L193] SORT_5 var_40_arg_0 = var_39; [L194] SORT_1 var_40_arg_1 = state_34; [L195] SORT_1 var_40_arg_2 = state_32; [L196] SORT_1 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; [L197] SORT_5 var_45_arg_0 = var_44; [L198] SORT_1 var_45_arg_1 = state_41; [L199] SORT_1 var_45_arg_2 = var_40; [L200] SORT_1 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; [L201] SORT_5 var_56_arg_0 = var_55; [L202] SORT_1 var_56_arg_1 = var_52; [L203] SORT_1 var_56_arg_2 = var_45; [L204] SORT_1 var_56 = var_56_arg_0 ? var_56_arg_1 : var_56_arg_2; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_81=1] [L205] EXPR var_56 & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L205] var_56 = var_56 & mask_SORT_1 [L206] SORT_1 var_75_arg_0 = state_17; [L207] SORT_5 var_75 = var_75_arg_0 >> 2; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_75=0, var_81=1] [L208] EXPR var_75 & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_81=1] [L208] var_75 = var_75 & mask_SORT_5 [L209] SORT_1 var_68_arg_0 = state_17; [L210] SORT_5 var_68 = var_68_arg_0 >> 1; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_68=0, var_75=0, var_81=1] [L211] EXPR var_68 & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_75=0, var_81=1] [L211] var_68 = var_68 & mask_SORT_5 [L212] SORT_1 var_61_arg_0 = state_17; [L213] SORT_5 var_61 = var_61_arg_0 >> 0; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_61=0, var_68=0, var_75=0, var_81=1] [L214] EXPR var_61 & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_68=0, var_75=0, var_81=1] [L214] var_61 = var_61 & mask_SORT_5 [L215] SORT_5 var_73_arg_0 = var_61; [L216] SORT_1 var_73_arg_1 = input_4; [L217] SORT_1 var_73_arg_2 = input_3; [L218] SORT_1 var_73 = var_73_arg_0 ? var_73_arg_1 : var_73_arg_2; [L219] SORT_5 var_72_arg_0 = var_61; [L220] SORT_1 var_72_arg_1 = input_2; [L221] SORT_1 var_72_arg_2 = state_70; [L222] SORT_1 var_72 = var_72_arg_0 ? var_72_arg_1 : var_72_arg_2; [L223] SORT_5 var_74_arg_0 = var_68; [L224] SORT_1 var_74_arg_1 = var_73; [L225] SORT_1 var_74_arg_2 = var_72; [L226] SORT_1 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L227] SORT_5 var_67_arg_0 = var_61; [L228] SORT_1 var_67_arg_1 = state_65; [L229] SORT_1 var_67_arg_2 = state_63; [L230] SORT_1 var_67 = var_67_arg_0 ? var_67_arg_1 : var_67_arg_2; [L231] SORT_5 var_62_arg_0 = var_61; [L232] SORT_1 var_62_arg_1 = state_59; [L233] SORT_1 var_62_arg_2 = state_57; [L234] SORT_1 var_62 = var_62_arg_0 ? var_62_arg_1 : var_62_arg_2; [L235] SORT_5 var_69_arg_0 = var_68; [L236] SORT_1 var_69_arg_1 = var_67; [L237] SORT_1 var_69_arg_2 = var_62; [L238] SORT_1 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L239] SORT_5 var_76_arg_0 = var_75; [L240] SORT_1 var_76_arg_1 = var_74; [L241] SORT_1 var_76_arg_2 = var_69; [L242] SORT_1 var_76 = var_76_arg_0 ? var_76_arg_1 : var_76_arg_2; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_76=0, var_81=1] [L243] EXPR var_76 & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_81=1] [L243] var_76 = var_76 & mask_SORT_1 [L244] SORT_1 var_77_arg_0 = var_56; [L245] SORT_1 var_77_arg_1 = var_76; [L246] SORT_5 var_77 = var_77_arg_0 == var_77_arg_1; [L247] SORT_5 var_78_arg_0 = state_28; [L248] SORT_5 var_78_arg_1 = var_77; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_78_arg_0=1, var_78_arg_1=1, var_81=1] [L249] EXPR var_78_arg_0 | var_78_arg_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L249] SORT_5 var_78 = var_78_arg_0 | var_78_arg_1; [L250] SORT_5 var_79_arg_0 = var_31; [L251] SORT_5 var_79_arg_1 = var_78; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_38=1, var_43=2, var_50=4, var_53=3, var_79_arg_0=0, var_79_arg_1=1, var_81=1] [L252] EXPR var_79_arg_0 & var_79_arg_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L252] SORT_5 var_79 = var_79_arg_0 & var_79_arg_1; [L253] SORT_5 var_80_arg_0 = var_79; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_38=1, var_43=2, var_50=4, var_53=3, var_80_arg_0=0, var_81=1] [L254] EXPR var_80_arg_0 & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L254] var_80_arg_0 = var_80_arg_0 & mask_SORT_5 [L255] SORT_13 var_80 = var_80_arg_0; [L256] SORT_13 var_82_arg_0 = var_80; [L257] SORT_13 var_82_arg_1 = var_81; [L258] SORT_5 var_82 = var_82_arg_0 == var_82_arg_1; [L259] SORT_5 var_85_arg_0 = var_82; [L260] SORT_5 var_85 = ~var_85_arg_0; [L261] SORT_5 var_86_arg_0 = var_22; [L262] SORT_5 var_86_arg_1 = var_85; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1, var_86_arg_0=1, var_86_arg_1=-1] [L263] EXPR var_86_arg_0 & var_86_arg_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L263] SORT_5 var_86 = var_86_arg_0 & var_86_arg_1; [L264] EXPR var_86 & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L264] var_86 = var_86 & mask_SORT_5 [L265] SORT_5 bad_87_arg_0 = var_86; [L266] CALL __VERIFIER_assert(!(bad_87_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 538 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6318 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6318 mSDsluCounter, 24352 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18104 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 925 IncrementalHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 6248 mSDtfsCounter, 925 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=599occurred in iteration=8, InterpolantAutomatonStates: 51, 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, 8 MinimizatonAttempts, 605 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 653 NumberOfCodeBlocks, 653 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 570 ConstructedInterpolants, 0 QuantifiedInterpolants, 1834 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-07 02:57:02,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 56f86b4cab001f7d30235f7e21f0d2866e7fb9bade2974e05f17edebfb7e1bb0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 02:57:05,165 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 02:57:05,254 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-07 02:57:05,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 02:57:05,263 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 02:57:05,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 02:57:05,312 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 02:57:05,312 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 02:57:05,316 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 02:57:05,316 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 02:57:05,317 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 02:57:05,317 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 02:57:05,317 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 02:57:05,317 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 02:57:05,317 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 02:57:05,317 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 02:57:05,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 02:57:05,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 02:57:05,318 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 02:57:05,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 02:57:05,318 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 02:57:05,318 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 02:57:05,318 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-07 02:57:05,318 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 02:57:05,318 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-07 02:57:05,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 02:57:05,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 02:57:05,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 02:57:05,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 02:57:05,318 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 02:57:05,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 02:57:05,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 02:57:05,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 02:57:05,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 02:57:05,319 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 02:57:05,319 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-07 02:57:05,319 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-07 02:57:05,319 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 02:57:05,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 02:57:05,319 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 02:57:05,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 02:57:05,319 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> 56f86b4cab001f7d30235f7e21f0d2866e7fb9bade2974e05f17edebfb7e1bb0 [2024-11-07 02:57:05,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 02:57:05,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 02:57:05,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 02:57:05,581 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 02:57:05,581 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 02:57:05,584 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c [2024-11-07 02:57:06,928 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 02:57:07,280 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 02:57:07,283 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c [2024-11-07 02:57:07,299 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/370c65214/c9956292b2bd4673aa4fc7080c0f42d1/FLAGf466ade25 [2024-11-07 02:57:07,495 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/370c65214/c9956292b2bd4673aa4fc7080c0f42d1 [2024-11-07 02:57:07,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 02:57:07,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 02:57:07,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 02:57:07,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 02:57:07,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 02:57:07,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:57:07" (1/1) ... [2024-11-07 02:57:07,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ca1bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:07, skipping insertion in model container [2024-11-07 02:57:07,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:57:07" (1/1) ... [2024-11-07 02:57:07,533 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 02:57:07,692 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c[1246,1259] [2024-11-07 02:57:07,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 02:57:07,915 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 02:57:07,923 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_FIFO.c[1246,1259] [2024-11-07 02:57:08,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 02:57:08,035 INFO L204 MainTranslator]: Completed translation [2024-11-07 02:57:08,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:08 WrapperNode [2024-11-07 02:57:08,037 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 02:57:08,038 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 02:57:08,038 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 02:57:08,038 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 02:57:08,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:08" (1/1) ... [2024-11-07 02:57:08,076 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:08" (1/1) ... [2024-11-07 02:57:08,150 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 878 [2024-11-07 02:57:08,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 02:57:08,155 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 02:57:08,155 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 02:57:08,156 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 02:57:08,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:08" (1/1) ... [2024-11-07 02:57:08,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:08" (1/1) ... [2024-11-07 02:57:08,177 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:08" (1/1) ... [2024-11-07 02:57:08,204 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]. [2024-11-07 02:57:08,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:08" (1/1) ... [2024-11-07 02:57:08,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:08" (1/1) ... [2024-11-07 02:57:08,237 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:08" (1/1) ... [2024-11-07 02:57:08,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:08" (1/1) ... [2024-11-07 02:57:08,244 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:08" (1/1) ... [2024-11-07 02:57:08,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:08" (1/1) ... [2024-11-07 02:57:08,252 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 02:57:08,253 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 02:57:08,253 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 02:57:08,253 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 02:57:08,254 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:08" (1/1) ... [2024-11-07 02:57:08,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 02:57:08,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:57:08,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 02:57:08,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 02:57:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 02:57:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-07 02:57:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 02:57:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 02:57:08,526 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 02:57:08,528 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 02:57:09,261 INFO L? ?]: Removed 152 outVars from TransFormulas that were not future-live. [2024-11-07 02:57:09,262 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 02:57:09,270 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 02:57:09,270 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 02:57:09,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:57:09 BoogieIcfgContainer [2024-11-07 02:57:09,271 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 02:57:09,274 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 02:57:09,274 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 02:57:09,283 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 02:57:09,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:57:07" (1/3) ... [2024-11-07 02:57:09,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0cd6fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:57:09, skipping insertion in model container [2024-11-07 02:57:09,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:08" (2/3) ... [2024-11-07 02:57:09,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0cd6fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:57:09, skipping insertion in model container [2024-11-07 02:57:09,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:57:09" (3/3) ... [2024-11-07 02:57:09,285 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_FIFO.c [2024-11-07 02:57:09,300 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 02:57:09,300 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 02:57:09,346 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 02:57:09,358 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;@19520ebe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 02:57:09,359 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 02:57:09,363 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) [2024-11-07 02:57:09,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-07 02:57:09,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:09,369 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 02:57:09,369 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:09,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:09,375 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-07 02:57:09,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 02:57:09,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123047995] [2024-11-07 02:57:09,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:09,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 02:57:09,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 02:57:09,393 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 02:57:09,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-07 02:57:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:09,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-07 02:57:09,720 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:57:10,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:10,138 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 02:57:10,139 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 02:57:10,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123047995] [2024-11-07 02:57:10,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123047995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:10,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:10,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:57:10,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808647005] [2024-11-07 02:57:10,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:10,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:57:10,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 02:57:10,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:57:10,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:57:10,163 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) [2024-11-07 02:57:10,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:10,249 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-07 02:57:10,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:57:10,251 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 [2024-11-07 02:57:10,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:10,256 INFO L225 Difference]: With dead ends: 18 [2024-11-07 02:57:10,257 INFO L226 Difference]: Without dead ends: 10 [2024-11-07 02:57:10,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:10,262 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:10,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:10,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-07 02:57:10,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-07 02:57:10,282 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) [2024-11-07 02:57:10,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-07 02:57:10,288 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-07 02:57:10,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:10,289 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-07 02:57:10,290 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) [2024-11-07 02:57:10,290 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-07 02:57:10,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-07 02:57:10,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:10,290 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:10,294 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-07 02:57:10,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 02:57:10,493 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:10,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:10,493 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-07 02:57:10,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 02:57:10,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934258204] [2024-11-07 02:57:10,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:10,494 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 02:57:10,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 02:57:10,496 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 02:57:10,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-07 02:57:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:10,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 125 conjuncts are in the unsatisfiable core [2024-11-07 02:57:10,973 INFO L278 TraceCheckSpWp]: Computing forward predicates...