/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/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-53.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 15:08:03,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 15:08:03,880 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 15:08:03,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 15:08:03,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 15:08:03,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 15:08:03,915 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 15:08:03,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 15:08:03,916 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 15:08:03,920 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 15:08:03,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 15:08:03,920 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 15:08:03,921 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 15:08:03,922 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 15:08:03,922 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 15:08:03,923 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 15:08:03,923 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 15:08:03,923 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 15:08:03,923 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 15:08:03,924 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 15:08:03,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 15:08:03,924 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 15:08:03,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 15:08:03,924 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 15:08:03,925 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 15:08:03,925 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 15:08:03,925 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 15:08:03,925 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 15:08:03,925 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 15:08:03,926 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 15:08:03,926 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 15:08:03,927 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 15:08:03,927 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 15:08:03,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 15:08:03,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 15:08:03,927 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 15:08:03,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 15:08:03,928 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 15:08:03,928 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 15:08:03,928 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 15:08:03,928 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 15:08:03,928 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 15:08:03,928 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 15:08:03,929 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 15:08:03,929 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 15:08:03,929 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 15:08:03,929 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 15:08:04,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 15:08:04,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 15:08:04,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 15:08:04,180 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 15:08:04,180 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 15:08:04,182 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-53.i [2023-12-24 15:08:05,417 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 15:08:05,587 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 15:08:05,587 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-53.i [2023-12-24 15:08:05,594 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/941ccc8f9/c58e463eb532496187097295cb023be5/FLAG9ae885059 [2023-12-24 15:08:05,604 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/941ccc8f9/c58e463eb532496187097295cb023be5 [2023-12-24 15:08:05,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 15:08:05,607 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 15:08:05,608 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 15:08:05,608 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 15:08:05,612 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 15:08:05,612 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 03:08:05" (1/1) ... [2023-12-24 15:08:05,613 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18b5e80c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:08:05, skipping insertion in model container [2023-12-24 15:08:05,613 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 03:08:05" (1/1) ... [2023-12-24 15:08:05,649 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 15:08:05,795 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-53.i[917,930] [2023-12-24 15:08:05,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 15:08:05,892 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 15:08:05,900 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-53.i[917,930] [2023-12-24 15:08:05,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 15:08:05,955 INFO L206 MainTranslator]: Completed translation [2023-12-24 15:08:05,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:08:05 WrapperNode [2023-12-24 15:08:05,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 15:08:05,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 15:08:05,956 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 15:08:05,956 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 15:08:05,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:08:05" (1/1) ... [2023-12-24 15:08:05,975 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:08:05" (1/1) ... [2023-12-24 15:08:06,008 INFO L138 Inliner]: procedures = 36, calls = 166, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 506 [2023-12-24 15:08:06,008 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 15:08:06,009 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 15:08:06,009 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 15:08:06,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 15:08:06,018 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:08:05" (1/1) ... [2023-12-24 15:08:06,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:08:05" (1/1) ... [2023-12-24 15:08:06,028 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:08:05" (1/1) ... [2023-12-24 15:08:06,070 INFO L175 MemorySlicer]: Split 133 memory accesses to 5 slices as follows [2, 45, 20, 39, 27]. 34 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 6, 2, 5, 2]. The 18 writes are split as follows [0, 9, 2, 5, 2]. [2023-12-24 15:08:06,071 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:08:05" (1/1) ... [2023-12-24 15:08:06,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:08:05" (1/1) ... [2023-12-24 15:08:06,100 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:08:05" (1/1) ... [2023-12-24 15:08:06,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:08:05" (1/1) ... [2023-12-24 15:08:06,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:08:05" (1/1) ... [2023-12-24 15:08:06,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:08:05" (1/1) ... [2023-12-24 15:08:06,128 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 15:08:06,129 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 15:08:06,129 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 15:08:06,129 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 15:08:06,130 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:08:05" (1/1) ... [2023-12-24 15:08:06,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 15:08:06,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 15:08:06,156 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) [2023-12-24 15:08:06,175 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 [2023-12-24 15:08:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 15:08:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-12-24 15:08:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-12-24 15:08:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2023-12-24 15:08:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2023-12-24 15:08:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2023-12-24 15:08:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-12-24 15:08:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-12-24 15:08:06,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2023-12-24 15:08:06,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2023-12-24 15:08:06,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2023-12-24 15:08:06,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-24 15:08:06,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-24 15:08:06,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-24 15:08:06,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-24 15:08:06,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-24 15:08:06,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2023-12-24 15:08:06,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2023-12-24 15:08:06,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2023-12-24 15:08:06,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2023-12-24 15:08:06,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2023-12-24 15:08:06,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 15:08:06,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-24 15:08:06,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-24 15:08:06,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-24 15:08:06,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-24 15:08:06,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-24 15:08:06,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-24 15:08:06,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-12-24 15:08:06,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-12-24 15:08:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-12-24 15:08:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2023-12-24 15:08:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2023-12-24 15:08:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2023-12-24 15:08:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2023-12-24 15:08:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2023-12-24 15:08:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-24 15:08:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-24 15:08:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-24 15:08:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-24 15:08:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-12-24 15:08:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2023-12-24 15:08:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2023-12-24 15:08:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2023-12-24 15:08:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2023-12-24 15:08:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2023-12-24 15:08:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 15:08:06,191 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 15:08:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 15:08:06,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 15:08:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-24 15:08:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-24 15:08:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-24 15:08:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-24 15:08:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-24 15:08:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2023-12-24 15:08:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2023-12-24 15:08:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2023-12-24 15:08:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2023-12-24 15:08:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2023-12-24 15:08:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-24 15:08:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-24 15:08:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-24 15:08:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-24 15:08:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-12-24 15:08:06,344 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 15:08:06,346 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 15:08:07,449 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 15:08:07,525 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 15:08:07,525 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 15:08:07,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:08:07 BoogieIcfgContainer [2023-12-24 15:08:07,526 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 15:08:07,528 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 15:08:07,528 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 15:08:07,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 15:08:07,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 03:08:05" (1/3) ... [2023-12-24 15:08:07,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e09f95b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 03:08:07, skipping insertion in model container [2023-12-24 15:08:07,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:08:05" (2/3) ... [2023-12-24 15:08:07,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e09f95b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 03:08:07, skipping insertion in model container [2023-12-24 15:08:07,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:08:07" (3/3) ... [2023-12-24 15:08:07,533 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-53.i [2023-12-24 15:08:07,547 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 15:08:07,548 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 15:08:07,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 15:08:07,594 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;@3bfb4c12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 15:08:07,594 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 15:08:07,598 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 84 states have (on average 1.4404761904761905) internal successors, (121), 85 states have internal predecessors, (121), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-24 15:08:07,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-24 15:08:07,608 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:08:07,609 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:08:07,609 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:08:07,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:08:07,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1983161675, now seen corresponding path program 1 times [2023-12-24 15:08:07,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:08:07,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341886014] [2023-12-24 15:08:07,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:08:07,623 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 [2023-12-24 15:08:07,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:08:07,624 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) [2023-12-24 15:08:07,626 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 [2023-12-24 15:08:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:08:08,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 15:08:08,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:08:08,075 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-12-24 15:08:08,075 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:08:08,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:08:08,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341886014] [2023-12-24 15:08:08,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341886014] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:08:08,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:08:08,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 15:08:08,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238217439] [2023-12-24 15:08:08,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:08:08,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 15:08:08,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:08:08,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 15:08:08,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 15:08:08,121 INFO L87 Difference]: Start difference. First operand has 105 states, 84 states have (on average 1.4404761904761905) internal successors, (121), 85 states have internal predecessors, (121), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-24 15:08:08,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:08:08,189 INFO L93 Difference]: Finished difference Result 207 states and 330 transitions. [2023-12-24 15:08:08,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 15:08:08,191 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 135 [2023-12-24 15:08:08,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:08:08,202 INFO L225 Difference]: With dead ends: 207 [2023-12-24 15:08:08,202 INFO L226 Difference]: Without dead ends: 103 [2023-12-24 15:08:08,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 15:08:08,210 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 15:08:08,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 15:08:08,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-24 15:08:08,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2023-12-24 15:08:08,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 83 states have (on average 1.3734939759036144) internal successors, (114), 83 states have internal predecessors, (114), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-24 15:08:08,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 150 transitions. [2023-12-24 15:08:08,274 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 150 transitions. Word has length 135 [2023-12-24 15:08:08,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:08:08,275 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 150 transitions. [2023-12-24 15:08:08,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-24 15:08:08,277 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 150 transitions. [2023-12-24 15:08:08,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-24 15:08:08,286 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:08:08,286 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:08:08,308 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 (2)] Forceful destruction successful, exit code 0 [2023-12-24 15:08:08,497 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 [2023-12-24 15:08:08,498 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:08:08,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:08:08,499 INFO L85 PathProgramCache]: Analyzing trace with hash 833082901, now seen corresponding path program 1 times [2023-12-24 15:08:08,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:08:08,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072925450] [2023-12-24 15:08:08,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:08:08,500 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 [2023-12-24 15:08:08,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:08:08,502 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) [2023-12-24 15:08:08,508 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 [2023-12-24 15:08:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:08:08,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 15:08:08,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:08:08,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-24 15:08:09,012 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 15:08:09,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:08:09,015 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:08:09,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072925450] [2023-12-24 15:08:09,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2072925450] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:08:09,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:08:09,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 15:08:09,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795836605] [2023-12-24 15:08:09,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:08:09,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 15:08:09,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:08:09,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 15:08:09,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 15:08:09,019 INFO L87 Difference]: Start difference. First operand 103 states and 150 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 15:08:09,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:08:09,089 INFO L93 Difference]: Finished difference Result 205 states and 299 transitions. [2023-12-24 15:08:09,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 15:08:09,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 135 [2023-12-24 15:08:09,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:08:09,091 INFO L225 Difference]: With dead ends: 205 [2023-12-24 15:08:09,091 INFO L226 Difference]: Without dead ends: 103 [2023-12-24 15:08:09,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 15:08:09,093 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 1 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 15:08:09,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 285 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 15:08:09,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-24 15:08:09,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2023-12-24 15:08:09,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 83 states have internal predecessors, (113), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-24 15:08:09,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 149 transitions. [2023-12-24 15:08:09,107 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 149 transitions. Word has length 135 [2023-12-24 15:08:09,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:08:09,109 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 149 transitions. [2023-12-24 15:08:09,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 15:08:09,109 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 149 transitions. [2023-12-24 15:08:09,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-24 15:08:09,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:08:09,111 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:08:09,127 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 [2023-12-24 15:08:09,324 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 [2023-12-24 15:08:09,325 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:08:09,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:08:09,325 INFO L85 PathProgramCache]: Analyzing trace with hash -446780777, now seen corresponding path program 1 times [2023-12-24 15:08:09,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:08:09,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461142692] [2023-12-24 15:08:09,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:08:09,327 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 [2023-12-24 15:08:09,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:08:09,328 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) [2023-12-24 15:08:09,332 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 [2023-12-24 15:08:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:08:09,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-24 15:08:09,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:08:11,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-24 15:08:11,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2023-12-24 15:08:11,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2023-12-24 15:08:12,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-12-24 15:08:12,038 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 88 proven. 224 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-24 15:08:12,038 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 15:08:12,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:08:12,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461142692] [2023-12-24 15:08:12,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461142692] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 15:08:12,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [626860388] [2023-12-24 15:08:12,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:08:12,243 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 15:08:12,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 15:08:12,248 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 15:08:12,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-24 15:08:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:08:13,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-24 15:08:13,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:08:14,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-24 15:08:15,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2023-12-24 15:08:15,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2023-12-24 15:08:15,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-12-24 15:08:15,920 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 88 proven. 224 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-24 15:08:15,920 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 15:08:16,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [626860388] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 15:08:16,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 15:08:16,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2023-12-24 15:08:16,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423112546] [2023-12-24 15:08:16,088 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 15:08:16,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-24 15:08:16,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:08:16,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-24 15:08:16,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=951, Unknown=0, NotChecked=0, Total=1122 [2023-12-24 15:08:16,090 INFO L87 Difference]: Start difference. First operand 103 states and 149 transitions. Second operand has 29 states, 25 states have (on average 4.08) internal successors, (102), 24 states have internal predecessors, (102), 8 states have call successors, (36), 6 states have call predecessors, (36), 8 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2023-12-24 15:08:17,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:08:17,311 INFO L93 Difference]: Finished difference Result 216 states and 307 transitions. [2023-12-24 15:08:17,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-24 15:08:17,312 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 4.08) internal successors, (102), 24 states have internal predecessors, (102), 8 states have call successors, (36), 6 states have call predecessors, (36), 8 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) Word has length 135 [2023-12-24 15:08:17,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:08:17,314 INFO L225 Difference]: With dead ends: 216 [2023-12-24 15:08:17,315 INFO L226 Difference]: Without dead ends: 114 [2023-12-24 15:08:17,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 276 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=338, Invalid=1554, Unknown=0, NotChecked=0, Total=1892 [2023-12-24 15:08:17,323 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 362 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-24 15:08:17,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 1169 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-24 15:08:17,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-24 15:08:17,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2023-12-24 15:08:17,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 90 states have (on average 1.3333333333333333) internal successors, (120), 90 states have internal predecessors, (120), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-24 15:08:17,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 156 transitions. [2023-12-24 15:08:17,344 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 156 transitions. Word has length 135 [2023-12-24 15:08:17,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:08:17,344 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 156 transitions. [2023-12-24 15:08:17,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 4.08) internal successors, (102), 24 states have internal predecessors, (102), 8 states have call successors, (36), 6 states have call predecessors, (36), 8 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2023-12-24 15:08:17,345 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 156 transitions. [2023-12-24 15:08:17,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-24 15:08:17,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:08:17,348 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:08:17,360 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 [2023-12-24 15:08:17,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-24 15:08:17,759 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-24 15:08:17,759 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:08:17,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:08:17,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1033586791, now seen corresponding path program 1 times [2023-12-24 15:08:17,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:08:17,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522166494] [2023-12-24 15:08:17,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:08:17,761 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 [2023-12-24 15:08:17,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:08:17,762 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) [2023-12-24 15:08:17,765 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 [2023-12-24 15:08:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:08:18,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-24 15:08:18,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:08:19,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2023-12-24 15:08:19,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-12-24 15:08:19,676 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 44 proven. 186 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2023-12-24 15:08:19,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 15:08:19,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:08:19,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522166494] [2023-12-24 15:08:19,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [522166494] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 15:08:19,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1812171406] [2023-12-24 15:08:19,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:08:19,849 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 15:08:19,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 15:08:19,850 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 15:08:19,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-24 15:08:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:08:20,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-24 15:08:20,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:08:22,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-24 15:08:22,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2023-12-24 15:08:23,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-12-24 15:08:23,093 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 44 proven. 186 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2023-12-24 15:08:23,094 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 15:08:23,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1812171406] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 15:08:23,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 15:08:23,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2023-12-24 15:08:23,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799555197] [2023-12-24 15:08:23,227 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 15:08:23,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-24 15:08:23,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:08:23,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-24 15:08:23,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=972, Unknown=0, NotChecked=0, Total=1122 [2023-12-24 15:08:23,229 INFO L87 Difference]: Start difference. First operand 112 states and 156 transitions. Second operand has 29 states, 25 states have (on average 4.08) internal successors, (102), 24 states have internal predecessors, (102), 8 states have call successors, (36), 6 states have call predecessors, (36), 8 states have return successors, (36), 6 states have call predecessors, (36), 8 states have call successors, (36) [2023-12-24 15:08:24,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:08:24,870 INFO L93 Difference]: Finished difference Result 233 states and 319 transitions. [2023-12-24 15:08:24,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-24 15:08:24,875 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 4.08) internal successors, (102), 24 states have internal predecessors, (102), 8 states have call successors, (36), 6 states have call predecessors, (36), 8 states have return successors, (36), 6 states have call predecessors, (36), 8 states have call successors, (36) Word has length 135 [2023-12-24 15:08:24,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:08:24,876 INFO L225 Difference]: With dead ends: 233 [2023-12-24 15:08:24,876 INFO L226 Difference]: Without dead ends: 122 [2023-12-24 15:08:24,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 276 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=372, Invalid=1790, Unknown=0, NotChecked=0, Total=2162 [2023-12-24 15:08:24,878 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 419 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 1324 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-24 15:08:24,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 1324 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-24 15:08:24,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-12-24 15:08:24,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 119. [2023-12-24 15:08:24,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 95 states have (on average 1.305263157894737) internal successors, (124), 95 states have internal predecessors, (124), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-24 15:08:24,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 160 transitions. [2023-12-24 15:08:24,891 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 160 transitions. Word has length 135 [2023-12-24 15:08:24,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:08:24,895 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 160 transitions. [2023-12-24 15:08:24,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 4.08) internal successors, (102), 24 states have internal predecessors, (102), 8 states have call successors, (36), 6 states have call predecessors, (36), 8 states have return successors, (36), 6 states have call predecessors, (36), 8 states have call successors, (36) [2023-12-24 15:08:24,895 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 160 transitions. [2023-12-24 15:08:24,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-24 15:08:24,896 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:08:24,896 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:08:24,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-24 15:08:25,115 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 (6)] Forceful destruction successful, exit code 0 [2023-12-24 15:08:25,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-24 15:08:25,307 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:08:25,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:08:25,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1959110827, now seen corresponding path program 1 times [2023-12-24 15:08:25,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:08:25,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834127336] [2023-12-24 15:08:25,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:08:25,309 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 [2023-12-24 15:08:25,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:08:25,310 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) [2023-12-24 15:08:25,364 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 [2023-12-24 15:08:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:08:25,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-24 15:08:25,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:08:25,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-24 15:08:26,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-24 15:08:26,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2023-12-24 15:08:28,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2023-12-24 15:08:28,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 57 [2023-12-24 15:08:28,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-24 15:08:28,550 INFO L349 Elim1Store]: treesize reduction 56, result has 13.8 percent of original size [2023-12-24 15:08:28,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 57 treesize of output 96 [2023-12-24 15:08:28,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2023-12-24 15:08:29,028 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 15:08:29,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 117 treesize of output 61 [2023-12-24 15:08:29,076 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 13 proven. 230 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2023-12-24 15:08:29,076 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 15:08:41,438 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:08:41,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834127336] [2023-12-24 15:08:41,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1834127336] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 15:08:41,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [661696837] [2023-12-24 15:08:41,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:08:41,438 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 15:08:41,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 15:08:41,440 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 15:08:41,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-24 15:08:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:08:42,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-24 15:08:42,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:08:42,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-24 15:08:42,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2023-12-24 15:08:43,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-12-24 15:08:45,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2023-12-24 15:08:45,745 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-12-24 15:08:45,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 80 [2023-12-24 15:08:45,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-24 15:08:45,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 105 [2023-12-24 15:08:45,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-12-24 15:08:46,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-24 15:08:46,101 INFO L349 Elim1Store]: treesize reduction 126, result has 17.6 percent of original size [2023-12-24 15:08:46,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 63 treesize of output 127 [2023-12-24 15:08:46,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 43 [2023-12-24 15:08:47,986 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 15:08:47,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 369 treesize of output 357 [2023-12-24 15:08:50,488 INFO L349 Elim1Store]: treesize reduction 44, result has 17.0 percent of original size [2023-12-24 15:08:50,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 59 [2023-12-24 15:08:50,555 INFO L349 Elim1Store]: treesize reduction 44, result has 17.0 percent of original size [2023-12-24 15:08:50,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 59 [2023-12-24 15:08:50,715 INFO L349 Elim1Store]: treesize reduction 44, result has 17.0 percent of original size [2023-12-24 15:08:50,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 59 [2023-12-24 15:08:51,226 INFO L349 Elim1Store]: treesize reduction 44, result has 17.0 percent of original size [2023-12-24 15:08:51,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 59 [2023-12-24 15:08:51,785 INFO L349 Elim1Store]: treesize reduction 44, result has 17.0 percent of original size [2023-12-24 15:08:51,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 58 [2023-12-24 15:08:52,067 INFO L349 Elim1Store]: treesize reduction 44, result has 17.0 percent of original size [2023-12-24 15:08:52,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 58 [2023-12-24 15:08:52,124 INFO L349 Elim1Store]: treesize reduction 44, result has 17.0 percent of original size [2023-12-24 15:08:52,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 58 [2023-12-24 15:08:52,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 15:08:52,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 10 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 26 case distinctions, treesize of input 407 treesize of output 479 Received shutdown request... [2023-12-24 15:22:06,925 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 15:22:06,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-12-24 15:22:06,964 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 15:22:06,964 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 [2023-12-24 15:22:06,967 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 [2023-12-24 15:22:07,146 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 (8)] Ended with exit code 0 [2023-12-24 15:22:07,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-24 15:22:07,336 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 137 with TraceHistMax 18,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-3-2-2-3-11-6-11-6-10-5-2-1 term,while PolyPacSimplificationTermWalker was simplifying 6 xjuncts wrt. a ∧-37-6-9-6-11-6-11-6-10-5-2-1 context. [2023-12-24 15:22:07,340 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-24 15:22:07,342 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 15:22:07,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 03:22:07 BoogieIcfgContainer [2023-12-24 15:22:07,344 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 15:22:07,344 INFO L158 Benchmark]: Toolchain (without parser) took 841737.47ms. Allocated memory was 281.0MB in the beginning and 1.0GB in the end (delta: 730.9MB). Free memory was 229.5MB in the beginning and 893.9MB in the end (delta: -664.4MB). Peak memory consumption was 609.7MB. Max. memory is 8.0GB. [2023-12-24 15:22:07,344 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 186.6MB. Free memory is still 132.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 15:22:07,345 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.63ms. Allocated memory is still 281.0MB. Free memory was 229.5MB in the beginning and 213.1MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-24 15:22:07,345 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.22ms. Allocated memory is still 281.0MB. Free memory was 213.1MB in the beginning and 209.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-24 15:22:07,345 INFO L158 Benchmark]: Boogie Preprocessor took 119.49ms. Allocated memory is still 281.0MB. Free memory was 209.6MB in the beginning and 203.9MB in the end (delta: 5.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-24 15:22:07,346 INFO L158 Benchmark]: RCFGBuilder took 1397.01ms. Allocated memory is still 281.0MB. Free memory was 203.9MB in the beginning and 220.1MB in the end (delta: -16.2MB). Peak memory consumption was 32.4MB. Max. memory is 8.0GB. [2023-12-24 15:22:07,346 INFO L158 Benchmark]: TraceAbstraction took 839816.13ms. Allocated memory was 281.0MB in the beginning and 1.0GB in the end (delta: 730.9MB). Free memory was 219.6MB in the beginning and 893.9MB in the end (delta: -674.3MB). Peak memory consumption was 599.3MB. Max. memory is 8.0GB. [2023-12-24 15:22:07,348 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 186.6MB. Free memory is still 132.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 347.63ms. Allocated memory is still 281.0MB. Free memory was 229.5MB in the beginning and 213.1MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.22ms. Allocated memory is still 281.0MB. Free memory was 213.1MB in the beginning and 209.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 119.49ms. Allocated memory is still 281.0MB. Free memory was 209.6MB in the beginning and 203.9MB in the end (delta: 5.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1397.01ms. Allocated memory is still 281.0MB. Free memory was 203.9MB in the beginning and 220.1MB in the end (delta: -16.2MB). Peak memory consumption was 32.4MB. Max. memory is 8.0GB. * TraceAbstraction took 839816.13ms. Allocated memory was 281.0MB in the beginning and 1.0GB in the end (delta: 730.9MB). Free memory was 219.6MB in the beginning and 893.9MB in the end (delta: -674.3MB). Peak memory consumption was 599.3MB. 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 137 with TraceHistMax 18,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-3-2-2-3-11-6-11-6-10-5-2-1 term,while PolyPacSimplificationTermWalker was simplifying 6 xjuncts wrt. a ∧-37-6-9-6-11-6-11-6-10-5-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 839.8s, OverallIterations: 5, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 801 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 782 mSDsluCounter, 2924 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2424 mSDsCounter, 183 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1641 IncrementalHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 183 mSolverCounterUnsat, 500 mSDtfsCounter, 1641 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 911 GetRequests, 819 SyntacticMatches, 4 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1246 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=4, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 810 NumberOfCodeBlocks, 810 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 804 ConstructedInterpolants, 13 QuantifiedInterpolants, 9973 SizeOfPredicates, 66 NumberOfNonLiveVariables, 1938 ConjunctsInSsa, 100 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 2852/3672 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