/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-pthread/cs_fib-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 18:36:57,551 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 18:36:57,591 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 18:36:57,594 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 18:36:57,594 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 18:36:57,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 18:36:57,609 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 18:36:57,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 18:36:57,609 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 18:36:57,610 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 18:36:57,610 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 18:36:57,610 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 18:36:57,611 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 18:36:57,611 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 18:36:57,611 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 18:36:57,611 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 18:36:57,612 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 18:36:57,612 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 18:36:57,612 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 18:36:57,612 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 18:36:57,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 18:36:57,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 18:36:57,613 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 18:36:57,613 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 18:36:57,614 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 18:36:57,614 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 18:36:57,614 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 18:36:57,614 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 18:36:57,615 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 18:36:57,615 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 18:36:57,615 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 18:36:57,615 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 18:36:57,616 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 18:36:57,616 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 18:36:57,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:36:57,616 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 18:36:57,616 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 18:36:57,617 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 18:36:57,617 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 18:36:57,617 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 18:36:57,617 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 18:36:57,618 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 18:36:57,618 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 18:36:57,618 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 18:36:57,618 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 18:36:57,618 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 18:36:57,618 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 18:36:57,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 18:36:57,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 18:36:57,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 18:36:57,774 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 18:36:57,774 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 18:36:57,775 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_fib-2.i [2023-12-16 18:36:58,991 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 18:36:59,190 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 18:36:59,191 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_fib-2.i [2023-12-16 18:36:59,221 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8de7f6e50/ed9e8965dcfe4a96a80b97eedadfbd86/FLAG7b83f3ae0 [2023-12-16 18:36:59,235 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8de7f6e50/ed9e8965dcfe4a96a80b97eedadfbd86 [2023-12-16 18:36:59,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 18:36:59,237 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 18:36:59,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 18:36:59,244 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 18:36:59,247 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 18:36:59,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:36:59" (1/1) ... [2023-12-16 18:36:59,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dfac71e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:59, skipping insertion in model container [2023-12-16 18:36:59,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:36:59" (1/1) ... [2023-12-16 18:36:59,304 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 18:36:59,517 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_fib-2.i[23457,23470] [2023-12-16 18:36:59,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:36:59,670 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 18:36:59,700 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_fib-2.i[23457,23470] [2023-12-16 18:36:59,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:36:59,772 INFO L206 MainTranslator]: Completed translation [2023-12-16 18:36:59,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:59 WrapperNode [2023-12-16 18:36:59,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 18:36:59,774 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 18:36:59,774 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 18:36:59,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 18:36:59,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:59" (1/1) ... [2023-12-16 18:36:59,801 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:59" (1/1) ... [2023-12-16 18:36:59,842 INFO L138 Inliner]: procedures = 148, calls = 356, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 673 [2023-12-16 18:36:59,843 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 18:36:59,843 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 18:36:59,844 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 18:36:59,844 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 18:36:59,866 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:59" (1/1) ... [2023-12-16 18:36:59,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:59" (1/1) ... [2023-12-16 18:36:59,873 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:59" (1/1) ... [2023-12-16 18:36:59,935 INFO L175 MemorySlicer]: Split 225 memory accesses to 14 slices as follows [2, 8, 8, 36, 11, 31, 22, 22, 10, 31, 31, 11, 0, 2]. 16 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [2, 3, 3, 0, 0, 0, 6, 6, 6, 0, 0, 0, 0, 0]. The 63 writes are split as follows [0, 2, 2, 21, 1, 16, 7, 7, 2, 1, 1, 1, 0, 2]. [2023-12-16 18:36:59,935 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:59" (1/1) ... [2023-12-16 18:36:59,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:59" (1/1) ... [2023-12-16 18:36:59,959 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:59" (1/1) ... [2023-12-16 18:36:59,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:59" (1/1) ... [2023-12-16 18:36:59,967 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:59" (1/1) ... [2023-12-16 18:36:59,971 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:59" (1/1) ... [2023-12-16 18:36:59,978 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 18:36:59,979 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 18:36:59,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 18:36:59,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 18:36:59,979 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:59" (1/1) ... [2023-12-16 18:37:00,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:37:00,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 18:37:00,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 18:37:00,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 18:37:00,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-16 18:37:00,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-16 18:37:00,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-16 18:37:00,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-16 18:37:00,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-16 18:37:00,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-12-16 18:37:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2023-12-16 18:37:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2023-12-16 18:37:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2023-12-16 18:37:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2023-12-16 18:37:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#10 [2023-12-16 18:37:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#11 [2023-12-16 18:37:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#12 [2023-12-16 18:37:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#13 [2023-12-16 18:37:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-16 18:37:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-16 18:37:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-16 18:37:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-16 18:37:00,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-12-16 18:37:00,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-12-16 18:37:00,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-12-16 18:37:00,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-12-16 18:37:00,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2023-12-16 18:37:00,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2023-12-16 18:37:00,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2023-12-16 18:37:00,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2023-12-16 18:37:00,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2023-12-16 18:37:00,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2023-12-16 18:37:00,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-16 18:37:00,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-16 18:37:00,064 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 18:37:00,064 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 18:37:00,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 18:37:00,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-16 18:37:00,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-16 18:37:00,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-16 18:37:00,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-16 18:37:00,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-12-16 18:37:00,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-12-16 18:37:00,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-12-16 18:37:00,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-12-16 18:37:00,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-12-16 18:37:00,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-12-16 18:37:00,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-12-16 18:37:00,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-12-16 18:37:00,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-12-16 18:37:00,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-12-16 18:37:00,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-12-16 18:37:00,065 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-12-16 18:37:00,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-12-16 18:37:00,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-16 18:37:00,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-16 18:37:00,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-16 18:37:00,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-12-16 18:37:00,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-12-16 18:37:00,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-12-16 18:37:00,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-12-16 18:37:00,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-12-16 18:37:00,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-12-16 18:37:00,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-12-16 18:37:00,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-12-16 18:37:00,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-12-16 18:37:00,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-12-16 18:37:00,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-12-16 18:37:00,067 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-16 18:37:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-16 18:37:00,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-16 18:37:00,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-16 18:37:00,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-16 18:37:00,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-16 18:37:00,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-16 18:37:00,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-12-16 18:37:00,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2023-12-16 18:37:00,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2023-12-16 18:37:00,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2023-12-16 18:37:00,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2023-12-16 18:37:00,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#10 [2023-12-16 18:37:00,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#11 [2023-12-16 18:37:00,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#12 [2023-12-16 18:37:00,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#13 [2023-12-16 18:37:00,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-16 18:37:00,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-16 18:37:00,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-16 18:37:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-16 18:37:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-16 18:37:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-12-16 18:37:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-12-16 18:37:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-12-16 18:37:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-12-16 18:37:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2023-12-16 18:37:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2023-12-16 18:37:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2023-12-16 18:37:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2023-12-16 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2023-12-16 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2023-12-16 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-16 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-16 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-16 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-16 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-16 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-16 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-16 18:37:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-16 18:37:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-16 18:37:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-16 18:37:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-16 18:37:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-12-16 18:37:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-12-16 18:37:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-12-16 18:37:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2023-12-16 18:37:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2023-12-16 18:37:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2023-12-16 18:37:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2023-12-16 18:37:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2023-12-16 18:37:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2023-12-16 18:37:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2023-12-16 18:37:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#12 [2023-12-16 18:37:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#13 [2023-12-16 18:37:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-12-16 18:37:00,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-12-16 18:37:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 18:37:00,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 18:37:00,330 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 18:37:00,332 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 18:37:00,949 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume 0bv32 != ~zero_extend~32~8(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv32, 0bv32;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-12-16 18:37:00,950 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !(0bv32 != ~zero_extend~32~8(~__CS_ret~0)); [2023-12-16 18:37:00,950 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume 0bv32 != ~zero_extend~32~8(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv32, 0bv32;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-12-16 18:37:00,950 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !(0bv32 != ~zero_extend~32~8(~__CS_ret~0)); [2023-12-16 18:37:00,950 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L749: SUMMARY for call __CS_cs(); srcloc: null [2023-12-16 18:37:00,950 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-1: assume 0bv32 != ~zero_extend~32~8(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv32, 0bv32;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-12-16 18:37:00,950 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-1: assume !(0bv32 != ~zero_extend~32~8(~__CS_ret~0)); [2023-12-16 18:37:05,599 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 18:37:05,650 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 18:37:05,650 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-16 18:37:05,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:37:05 BoogieIcfgContainer [2023-12-16 18:37:05,651 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 18:37:05,654 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 18:37:05,654 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 18:37:05,656 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 18:37:05,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:36:59" (1/3) ... [2023-12-16 18:37:05,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724d3d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:37:05, skipping insertion in model container [2023-12-16 18:37:05,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:59" (2/3) ... [2023-12-16 18:37:05,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724d3d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:37:05, skipping insertion in model container [2023-12-16 18:37:05,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:37:05" (3/3) ... [2023-12-16 18:37:05,660 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_fib-2.i [2023-12-16 18:37:05,674 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 18:37:05,675 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 18:37:05,738 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 18:37:05,750 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4d47921b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 18:37:05,751 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 18:37:05,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 100 states have (on average 1.37) internal successors, (137), 101 states have internal predecessors, (137), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-16 18:37:05,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-12-16 18:37:05,781 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:05,782 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:05,782 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:05,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:05,788 INFO L85 PathProgramCache]: Analyzing trace with hash -792630857, now seen corresponding path program 1 times [2023-12-16 18:37:05,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:05,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604621969] [2023-12-16 18:37:05,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:05,802 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 [2023-12-16 18:37:05,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:05,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/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) [2023-12-16 18:37:05,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2023-12-16 18:37:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:06,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:37:06,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:06,757 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-16 18:37:06,758 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:37:06,758 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:06,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604621969] [2023-12-16 18:37:06,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1604621969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:37:06,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:37:06,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 18:37:06,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986946254] [2023-12-16 18:37:06,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:37:06,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:37:06,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:06,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:37:06,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:06,798 INFO L87 Difference]: Start difference. First operand has 173 states, 100 states have (on average 1.37) internal successors, (137), 101 states have internal predecessors, (137), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 18:37:11,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:37:11,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:11,315 INFO L93 Difference]: Finished difference Result 348 states and 608 transitions. [2023-12-16 18:37:11,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:37:11,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 253 [2023-12-16 18:37:11,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:11,325 INFO L225 Difference]: With dead ends: 348 [2023-12-16 18:37:11,325 INFO L226 Difference]: Without dead ends: 174 [2023-12-16 18:37:11,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:11,332 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 3 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:11,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 508 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2023-12-16 18:37:11,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-12-16 18:37:11,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 172. [2023-12-16 18:37:11,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 100 states have (on average 1.31) internal successors, (131), 101 states have internal predecessors, (131), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-16 18:37:11,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 262 transitions. [2023-12-16 18:37:11,394 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 262 transitions. Word has length 253 [2023-12-16 18:37:11,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:11,394 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 262 transitions. [2023-12-16 18:37:11,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 18:37:11,394 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 262 transitions. [2023-12-16 18:37:11,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-16 18:37:11,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:11,400 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:11,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2023-12-16 18:37:11,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/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 [2023-12-16 18:37:11,613 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:11,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:11,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1118766462, now seen corresponding path program 1 times [2023-12-16 18:37:11,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:11,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088752018] [2023-12-16 18:37:11,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:11,615 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 [2023-12-16 18:37:11,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:11,616 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/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) [2023-12-16 18:37:11,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2023-12-16 18:37:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:12,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:37:12,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:12,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3121 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-16 18:37:12,414 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:37:12,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:12,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088752018] [2023-12-16 18:37:12,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088752018] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:37:12,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:37:12,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:37:12,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310745863] [2023-12-16 18:37:12,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:37:12,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:37:12,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:12,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:37:12,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:12,417 INFO L87 Difference]: Start difference. First operand 172 states and 262 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 18:37:13,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:13,000 INFO L93 Difference]: Finished difference Result 343 states and 524 transitions. [2023-12-16 18:37:13,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:37:13,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 256 [2023-12-16 18:37:13,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:13,010 INFO L225 Difference]: With dead ends: 343 [2023-12-16 18:37:13,010 INFO L226 Difference]: Without dead ends: 173 [2023-12-16 18:37:13,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:13,015 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 0 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:13,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 508 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 18:37:13,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-16 18:37:13,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2023-12-16 18:37:13,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 101 states have (on average 1.306930693069307) internal successors, (132), 102 states have internal predecessors, (132), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-16 18:37:13,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 263 transitions. [2023-12-16 18:37:13,028 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 263 transitions. Word has length 256 [2023-12-16 18:37:13,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:13,028 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 263 transitions. [2023-12-16 18:37:13,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 18:37:13,029 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 263 transitions. [2023-12-16 18:37:13,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-12-16 18:37:13,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:13,031 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:13,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Forceful destruction successful, exit code 0 [2023-12-16 18:37:13,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/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 [2023-12-16 18:37:13,232 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:13,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:13,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1777653054, now seen corresponding path program 1 times [2023-12-16 18:37:13,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:13,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1780421908] [2023-12-16 18:37:13,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:13,234 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 [2023-12-16 18:37:13,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:13,238 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/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) [2023-12-16 18:37:13,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (4)] Waiting until timeout for monitored process [2023-12-16 18:37:13,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:13,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:37:13,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:14,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-16 18:37:14,240 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:37:14,583 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-16 18:37:14,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:14,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1780421908] [2023-12-16 18:37:14,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1780421908] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:37:14,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:37:14,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 18:37:14,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809239237] [2023-12-16 18:37:14,584 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:37:14,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:37:14,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:14,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:37:14,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:37:14,585 INFO L87 Difference]: Start difference. First operand 173 states and 263 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2023-12-16 18:37:16,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:16,018 INFO L93 Difference]: Finished difference Result 346 states and 528 transitions. [2023-12-16 18:37:16,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:37:16,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 257 [2023-12-16 18:37:16,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:16,021 INFO L225 Difference]: With dead ends: 346 [2023-12-16 18:37:16,021 INFO L226 Difference]: Without dead ends: 175 [2023-12-16 18:37:16,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:37:16,022 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 0 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:16,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1267 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 18:37:16,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-12-16 18:37:16,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2023-12-16 18:37:16,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 104 states have internal predecessors, (134), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-16 18:37:16,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 265 transitions. [2023-12-16 18:37:16,038 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 265 transitions. Word has length 257 [2023-12-16 18:37:16,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:16,038 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 265 transitions. [2023-12-16 18:37:16,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2023-12-16 18:37:16,039 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 265 transitions. [2023-12-16 18:37:16,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-16 18:37:16,045 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:16,045 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:16,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 (4)] Forceful destruction successful, exit code 0 [2023-12-16 18:37:16,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/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 [2023-12-16 18:37:16,257 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:16,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:16,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1692691902, now seen corresponding path program 2 times [2023-12-16 18:37:16,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:16,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327007123] [2023-12-16 18:37:16,259 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 18:37:16,259 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 [2023-12-16 18:37:16,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:16,262 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/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) [2023-12-16 18:37:16,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (5)] Waiting until timeout for monitored process [2023-12-16 18:37:16,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 18:37:16,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 18:37:16,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 18:37:16,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:16,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3127 trivial. 0 not checked. [2023-12-16 18:37:16,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:37:16,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:16,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327007123] [2023-12-16 18:37:16,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327007123] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:37:16,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:37:16,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:37:16,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746821898] [2023-12-16 18:37:16,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:37:16,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:37:16,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:16,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:37:16,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:16,995 INFO L87 Difference]: Start difference. First operand 175 states and 265 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 18:37:17,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:17,506 INFO L93 Difference]: Finished difference Result 337 states and 512 transitions. [2023-12-16 18:37:17,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:37:17,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 259 [2023-12-16 18:37:17,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:17,520 INFO L225 Difference]: With dead ends: 337 [2023-12-16 18:37:17,520 INFO L226 Difference]: Without dead ends: 175 [2023-12-16 18:37:17,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:17,521 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 0 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:17,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 505 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 18:37:17,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-12-16 18:37:17,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2023-12-16 18:37:17,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 103 states have (on average 1.2912621359223302) internal successors, (133), 104 states have internal predecessors, (133), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-16 18:37:17,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 264 transitions. [2023-12-16 18:37:17,565 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 264 transitions. Word has length 259 [2023-12-16 18:37:17,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:17,566 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 264 transitions. [2023-12-16 18:37:17,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 18:37:17,566 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 264 transitions. [2023-12-16 18:37:17,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-12-16 18:37:17,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:17,570 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:17,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 (5)] Forceful destruction successful, exit code 0 [2023-12-16 18:37:17,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/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 [2023-12-16 18:37:17,780 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:17,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:17,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1224383863, now seen corresponding path program 1 times [2023-12-16 18:37:17,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:17,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021273316] [2023-12-16 18:37:17,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:17,781 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 [2023-12-16 18:37:17,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:17,790 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/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) [2023-12-16 18:37:17,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (6)] Waiting until timeout for monitored process [2023-12-16 18:37:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:18,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:37:18,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:18,858 INFO L134 CoverageAnalysis]: Checked inductivity of 3287 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3286 trivial. 0 not checked. [2023-12-16 18:37:18,858 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:37:19,368 INFO L134 CoverageAnalysis]: Checked inductivity of 3287 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3286 trivial. 0 not checked. [2023-12-16 18:37:19,368 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:19,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021273316] [2023-12-16 18:37:19,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1021273316] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:37:19,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:37:19,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2023-12-16 18:37:19,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364218328] [2023-12-16 18:37:19,369 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:37:19,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:37:19,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:19,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:37:19,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:37:19,371 INFO L87 Difference]: Start difference. First operand 175 states and 264 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2023-12-16 18:37:24,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:37:28,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:37:32,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:37:36,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:37:36,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:36,786 INFO L93 Difference]: Finished difference Result 360 states and 542 transitions. [2023-12-16 18:37:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 18:37:36,788 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) Word has length 278 [2023-12-16 18:37:36,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:36,789 INFO L225 Difference]: With dead ends: 360 [2023-12-16 18:37:36,789 INFO L226 Difference]: Without dead ends: 193 [2023-12-16 18:37:36,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-16 18:37:36,790 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 12 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:36,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 757 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 4 Unknown, 0 Unchecked, 17.3s Time] [2023-12-16 18:37:36,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-12-16 18:37:36,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2023-12-16 18:37:36,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 122 states have internal predecessors, (154), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-16 18:37:36,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 285 transitions. [2023-12-16 18:37:36,801 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 285 transitions. Word has length 278 [2023-12-16 18:37:36,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:36,802 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 285 transitions. [2023-12-16 18:37:36,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2023-12-16 18:37:36,802 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 285 transitions. [2023-12-16 18:37:36,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2023-12-16 18:37:36,803 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:36,804 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 12, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:36,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 (6)] Ended with exit code 0 [2023-12-16 18:37:37,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/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 [2023-12-16 18:37:37,017 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:37,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:37,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1874157250, now seen corresponding path program 2 times [2023-12-16 18:37:37,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:37,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070335005] [2023-12-16 18:37:37,019 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 18:37:37,019 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 [2023-12-16 18:37:37,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:37,020 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/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) [2023-12-16 18:37:37,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (7)] Waiting until timeout for monitored process [2023-12-16 18:37:37,580 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 18:37:37,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 18:37:37,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 18:37:37,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:56,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3416 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 3256 trivial. 0 not checked. [2023-12-16 18:37:56,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:37:56,183 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:56,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070335005] [2023-12-16 18:37:56,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070335005] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:37:56,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:37:56,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 18:37:56,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226476200] [2023-12-16 18:37:56,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:37:56,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 18:37:56,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:56,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 18:37:56,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 18:37:56,185 INFO L87 Difference]: Start difference. First operand 193 states and 285 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (44), 4 states have call predecessors, (44), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2023-12-16 18:38:07,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:38:07,176 INFO L93 Difference]: Finished difference Result 366 states and 547 transitions. [2023-12-16 18:38:07,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 18:38:07,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (44), 4 states have call predecessors, (44), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 296 [2023-12-16 18:38:07,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:38:07,181 INFO L225 Difference]: With dead ends: 366 [2023-12-16 18:38:07,181 INFO L226 Difference]: Without dead ends: 364 [2023-12-16 18:38:07,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-16 18:38:07,182 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 439 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:38:07,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 680 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2023-12-16 18:38:07,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-12-16 18:38:07,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 362. [2023-12-16 18:38:07,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 218 states have (on average 1.2798165137614679) internal successors, (279), 220 states have internal predecessors, (279), 131 states have call successors, (131), 11 states have call predecessors, (131), 12 states have return successors, (134), 130 states have call predecessors, (134), 129 states have call successors, (134) [2023-12-16 18:38:07,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 544 transitions. [2023-12-16 18:38:07,238 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 544 transitions. Word has length 296 [2023-12-16 18:38:07,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:38:07,239 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 544 transitions. [2023-12-16 18:38:07,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (44), 4 states have call predecessors, (44), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2023-12-16 18:38:07,239 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 544 transitions. [2023-12-16 18:38:07,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2023-12-16 18:38:07,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:38:07,242 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 12, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:38:07,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 (7)] Forceful destruction successful, exit code 0 [2023-12-16 18:38:07,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/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 [2023-12-16 18:38:07,452 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:38:07,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:38:07,452 INFO L85 PathProgramCache]: Analyzing trace with hash -2051689955, now seen corresponding path program 1 times [2023-12-16 18:38:07,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:38:07,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099997129] [2023-12-16 18:38:07,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:38:07,454 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 [2023-12-16 18:38:07,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:38:07,455 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/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) [2023-12-16 18:38:07,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (8)] Waiting until timeout for monitored process [2023-12-16 18:38:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:38:08,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 18:38:08,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:38:09,882 INFO L134 CoverageAnalysis]: Checked inductivity of 3418 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2023-12-16 18:38:09,882 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:38:11,761 INFO L134 CoverageAnalysis]: Checked inductivity of 3418 backedges. 2 proven. 112 refuted. 0 times theorem prover too weak. 3304 trivial. 0 not checked. [2023-12-16 18:38:11,761 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:38:11,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1099997129] [2023-12-16 18:38:11,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1099997129] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:38:11,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:38:11,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2023-12-16 18:38:11,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852133140] [2023-12-16 18:38:11,762 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:38:11,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 18:38:11,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:38:11,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 18:38:11,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-12-16 18:38:11,764 INFO L87 Difference]: Start difference. First operand 362 states and 544 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 12 states have internal predecessors, (115), 2 states have call successors, (89), 2 states have call predecessors, (89), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) Received shutdown request... [2023-12-16 18:38:12,612 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/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 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:38:12,615 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:38:12,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:38:12,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 590 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-12-16 18:38:12,655 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 18:38:12,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 18:38:12,657 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 18:38:12,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 (8)] Forceful destruction successful, exit code 0 [2023-12-16 18:38:12,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/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 [2023-12-16 18:38:12,859 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (362states) and FLOYD_HOARE automaton (currently 3 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (3 states constructed, input type IntersectNwa). [2023-12-16 18:38:12,862 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-12-16 18:38:12,865 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 18:38:12,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:38:12 BoogieIcfgContainer [2023-12-16 18:38:12,866 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 18:38:12,867 INFO L158 Benchmark]: Toolchain (without parser) took 73629.54ms. Allocated memory was 180.4MB in the beginning and 318.8MB in the end (delta: 138.4MB). Free memory was 126.3MB in the beginning and 192.3MB in the end (delta: -66.0MB). Peak memory consumption was 72.9MB. Max. memory is 8.0GB. [2023-12-16 18:38:12,867 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 127.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 18:38:12,867 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.58ms. Allocated memory is still 180.4MB. Free memory was 125.9MB in the beginning and 93.8MB in the end (delta: 32.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2023-12-16 18:38:12,867 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.43ms. Allocated memory is still 180.4MB. Free memory was 93.8MB in the beginning and 88.1MB in the end (delta: 5.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 18:38:12,867 INFO L158 Benchmark]: Boogie Preprocessor took 134.60ms. Allocated memory is still 180.4MB. Free memory was 88.1MB in the beginning and 78.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 18:38:12,868 INFO L158 Benchmark]: RCFGBuilder took 5672.40ms. Allocated memory was 180.4MB in the beginning and 318.8MB in the end (delta: 138.4MB). Free memory was 78.1MB in the beginning and 210.5MB in the end (delta: -132.4MB). Peak memory consumption was 21.6MB. Max. memory is 8.0GB. [2023-12-16 18:38:12,868 INFO L158 Benchmark]: TraceAbstraction took 67212.88ms. Allocated memory is still 318.8MB. Free memory was 209.5MB in the beginning and 192.3MB in the end (delta: 17.2MB). Peak memory consumption was 16.6MB. Max. memory is 8.0GB. [2023-12-16 18:38:12,869 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 127.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 529.58ms. Allocated memory is still 180.4MB. Free memory was 125.9MB in the beginning and 93.8MB in the end (delta: 32.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 69.43ms. Allocated memory is still 180.4MB. Free memory was 93.8MB in the beginning and 88.1MB in the end (delta: 5.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 134.60ms. Allocated memory is still 180.4MB. Free memory was 88.1MB in the beginning and 78.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * RCFGBuilder took 5672.40ms. Allocated memory was 180.4MB in the beginning and 318.8MB in the end (delta: 138.4MB). Free memory was 78.1MB in the beginning and 210.5MB in the end (delta: -132.4MB). Peak memory consumption was 21.6MB. Max. memory is 8.0GB. * TraceAbstraction took 67212.88ms. Allocated memory is still 318.8MB. Free memory was 209.5MB in the beginning and 192.3MB in the end (delta: 17.2MB). Peak memory consumption was 16.6MB. Max. memory is 8.0GB. * 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 - TimeoutResultAtElement [Line: 539]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 539). Cancelled while NwaCegarLoop was constructing difference of abstraction (362states) and FLOYD_HOARE automaton (currently 3 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (3 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 173 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.2s, OverallIterations: 7, TraceHistogramMax: 41, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 36.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 523 SdHoareTripleChecker+Valid, 35.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 454 mSDsluCounter, 4225 SdHoareTripleChecker+Invalid, 34.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2778 mSDsCounter, 253 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 596 IncrementalHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 253 mSolverCounterUnsat, 1447 mSDtfsCounter, 596 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2730 GetRequests, 2700 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=6, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 24.0s InterpolantComputationTime, 1900 NumberOfCodeBlocks, 1384 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 2726 ConstructedInterpolants, 0 QuantifiedInterpolants, 4656 SizeOfPredicates, 6 NumberOfNonLiveVariables, 5782 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 32210/32438 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: Timeout Completed graceful shutdown