/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-p_file-30.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 15:46:51,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 15:46:51,928 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 15:46:51,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 15:46:51,933 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 15:46:51,962 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 15:46:51,962 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 15:46:51,962 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 15:46:51,963 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 15:46:51,966 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 15:46:51,966 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 15:46:51,966 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 15:46:51,967 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 15:46:51,968 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 15:46:51,968 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 15:46:51,968 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 15:46:51,969 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 15:46:51,969 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 15:46:51,969 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 15:46:51,969 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 15:46:51,969 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 15:46:51,970 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 15:46:51,970 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 15:46:51,970 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 15:46:51,970 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 15:46:51,970 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 15:46:51,970 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 15:46:51,970 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 15:46:51,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 15:46:51,971 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 15:46:51,972 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 15:46:51,972 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 15:46:51,972 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 15:46:51,972 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 15:46:51,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:46:51,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 15:46:51,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 15:46:51,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 15:46:51,972 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 15:46:51,973 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 15:46:51,973 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 15:46:51,973 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 15:46:51,973 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 15:46:51,973 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 15:46:51,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 15:46:51,974 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 15:46:51,974 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 15:46:52,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 15:46:52,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 15:46:52,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 15:46:52,200 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 15:46:52,200 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 15:46:52,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-30.i [2023-12-16 15:46:53,345 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 15:46:53,495 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 15:46:53,495 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-30.i [2023-12-16 15:46:53,501 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed317ae9e/18ad7c3c452a4c0ba6a896712f449f70/FLAGa5f1c285e [2023-12-16 15:46:53,512 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed317ae9e/18ad7c3c452a4c0ba6a896712f449f70 [2023-12-16 15:46:53,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 15:46:53,515 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 15:46:53,516 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 15:46:53,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 15:46:53,521 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 15:46:53,522 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:46:53" (1/1) ... [2023-12-16 15:46:53,523 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4094156e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:46:53, skipping insertion in model container [2023-12-16 15:46:53,523 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:46:53" (1/1) ... [2023-12-16 15:46:53,548 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 15:46:53,650 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-p_file-30.i[916,929] [2023-12-16 15:46:53,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:46:53,697 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 15:46:53,707 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-p_file-30.i[916,929] [2023-12-16 15:46:53,728 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:46:53,743 INFO L206 MainTranslator]: Completed translation [2023-12-16 15:46:53,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:46:53 WrapperNode [2023-12-16 15:46:53,743 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 15:46:53,744 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 15:46:53,744 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 15:46:53,744 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 15:46:53,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:46:53" (1/1) ... [2023-12-16 15:46:53,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:46:53" (1/1) ... [2023-12-16 15:46:53,789 INFO L138 Inliner]: procedures = 36, calls = 180, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 538 [2023-12-16 15:46:53,789 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 15:46:53,790 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 15:46:53,790 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 15:46:53,790 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 15:46:53,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:46:53" (1/1) ... [2023-12-16 15:46:53,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:46:53" (1/1) ... [2023-12-16 15:46:53,819 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:46:53" (1/1) ... [2023-12-16 15:46:53,844 INFO L175 MemorySlicer]: Split 139 memory accesses to 14 slices as follows [2, 17, 8, 11, 11, 12, 14, 14, 10, 5, 14, 8, 10, 3]. 12 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 17 writes are split as follows [0, 2, 1, 1, 1, 1, 1, 1, 3, 2, 1, 1, 1, 1]. [2023-12-16 15:46:53,845 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:46:53" (1/1) ... [2023-12-16 15:46:53,845 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:46:53" (1/1) ... [2023-12-16 15:46:53,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:46:53" (1/1) ... [2023-12-16 15:46:53,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:46:53" (1/1) ... [2023-12-16 15:46:53,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:46:53" (1/1) ... [2023-12-16 15:46:53,872 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:46:53" (1/1) ... [2023-12-16 15:46:53,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 15:46:53,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 15:46:53,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 15:46:53,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 15:46:53,885 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:46:53" (1/1) ... [2023-12-16 15:46:53,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:46:53,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 15:46:53,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 15:46:53,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 15:46:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 15:46:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-16 15:46:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-16 15:46:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-16 15:46:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-16 15:46:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-16 15:46:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-12-16 15:46:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2023-12-16 15:46:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2023-12-16 15:46:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2023-12-16 15:46:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2023-12-16 15:46:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#10 [2023-12-16 15:46:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#11 [2023-12-16 15:46:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#12 [2023-12-16 15:46:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#13 [2023-12-16 15:46:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2023-12-16 15:46:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2023-12-16 15:46:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2023-12-16 15:46:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2023-12-16 15:46:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2023-12-16 15:46:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2023-12-16 15:46:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#6 [2023-12-16 15:46:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#7 [2023-12-16 15:46:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#8 [2023-12-16 15:46:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#9 [2023-12-16 15:46:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#10 [2023-12-16 15:46:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#11 [2023-12-16 15:46:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#12 [2023-12-16 15:46:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#13 [2023-12-16 15:46:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 15:46:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 15:46:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 15:46:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 15:46:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 15:46:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-16 15:46:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-16 15:46:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-16 15:46:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-16 15:46:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-16 15:46:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-16 15:46:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-16 15:46:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-16 15:46:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-16 15:46:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-16 15:46:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-16 15:46:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-12-16 15:46:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-12-16 15:46:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-12-16 15:46:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2023-12-16 15:46:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2023-12-16 15:46:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2023-12-16 15:46:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2023-12-16 15:46:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2023-12-16 15:46:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2023-12-16 15:46:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2023-12-16 15:46:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#12 [2023-12-16 15:46:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#13 [2023-12-16 15:46:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-12-16 15:46:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-12-16 15:46:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-12-16 15:46:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-12-16 15:46:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2023-12-16 15:46:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2023-12-16 15:46:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2023-12-16 15:46:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2023-12-16 15:46:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2023-12-16 15:46:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2023-12-16 15:46:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2023-12-16 15:46:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2023-12-16 15:46:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2023-12-16 15:46:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2023-12-16 15:46:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-16 15:46:53,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-16 15:46:53,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-16 15:46:53,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-16 15:46:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-12-16 15:46:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-12-16 15:46:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-12-16 15:46:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-12-16 15:46:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2023-12-16 15:46:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2023-12-16 15:46:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2023-12-16 15:46:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2023-12-16 15:46:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2023-12-16 15:46:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2023-12-16 15:46:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2023-12-16 15:46:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2023-12-16 15:46:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2023-12-16 15:46:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2023-12-16 15:46:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2023-12-16 15:46:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2023-12-16 15:46:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2023-12-16 15:46:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#7 [2023-12-16 15:46:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#8 [2023-12-16 15:46:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#9 [2023-12-16 15:46:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#10 [2023-12-16 15:46:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#11 [2023-12-16 15:46:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#12 [2023-12-16 15:46:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#13 [2023-12-16 15:46:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-12-16 15:46:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-12-16 15:46:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-12-16 15:46:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-12-16 15:46:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2023-12-16 15:46:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2023-12-16 15:46:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2023-12-16 15:46:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2023-12-16 15:46:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2023-12-16 15:46:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2023-12-16 15:46:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2023-12-16 15:46:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2023-12-16 15:46:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2023-12-16 15:46:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2023-12-16 15:46:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2023-12-16 15:46:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2023-12-16 15:46:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2023-12-16 15:46:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2023-12-16 15:46:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2023-12-16 15:46:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2023-12-16 15:46:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2023-12-16 15:46:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2023-12-16 15:46:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2023-12-16 15:46:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2023-12-16 15:46:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2023-12-16 15:46:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11 [2023-12-16 15:46:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#12 [2023-12-16 15:46:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#13 [2023-12-16 15:46:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 15:46:53,964 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 15:46:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 15:46:53,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 15:46:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-16 15:46:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-16 15:46:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-16 15:46:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-16 15:46:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-16 15:46:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-12-16 15:46:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2023-12-16 15:46:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2023-12-16 15:46:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2023-12-16 15:46:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2023-12-16 15:46:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#10 [2023-12-16 15:46:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#11 [2023-12-16 15:46:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#12 [2023-12-16 15:46:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#13 [2023-12-16 15:46:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2023-12-16 15:46:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2023-12-16 15:46:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2023-12-16 15:46:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2023-12-16 15:46:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2023-12-16 15:46:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2023-12-16 15:46:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2023-12-16 15:46:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#7 [2023-12-16 15:46:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#8 [2023-12-16 15:46:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#9 [2023-12-16 15:46:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#10 [2023-12-16 15:46:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#11 [2023-12-16 15:46:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#12 [2023-12-16 15:46:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#13 [2023-12-16 15:46:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-16 15:46:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-16 15:46:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-16 15:46:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-16 15:46:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-12-16 15:46:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-12-16 15:46:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-12-16 15:46:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-12-16 15:46:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2023-12-16 15:46:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2023-12-16 15:46:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2023-12-16 15:46:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2023-12-16 15:46:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2023-12-16 15:46:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2023-12-16 15:46:54,226 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 15:46:54,227 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 15:46:55,095 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 15:46:55,152 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 15:46:55,152 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 15:46:55,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:46:55 BoogieIcfgContainer [2023-12-16 15:46:55,153 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 15:46:55,155 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 15:46:55,155 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 15:46:55,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 15:46:55,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:46:53" (1/3) ... [2023-12-16 15:46:55,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62cfc2fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:46:55, skipping insertion in model container [2023-12-16 15:46:55,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:46:53" (2/3) ... [2023-12-16 15:46:55,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62cfc2fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:46:55, skipping insertion in model container [2023-12-16 15:46:55,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:46:55" (3/3) ... [2023-12-16 15:46:55,160 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-30.i [2023-12-16 15:46:55,173 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 15:46:55,173 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 15:46:55,217 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 15:46:55,224 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;@74e9073c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 15:46:55,224 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 15:46:55,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 87 states have (on average 1.4482758620689655) internal successors, (126), 88 states have internal predecessors, (126), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 15:46:55,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 15:46:55,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:46:55,239 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:46:55,239 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:46:55,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:46:55,243 INFO L85 PathProgramCache]: Analyzing trace with hash -653007772, now seen corresponding path program 1 times [2023-12-16 15:46:55,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:46:55,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037919114] [2023-12-16 15:46:55,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:46:55,255 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:46:55,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:46:55,285 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:46:55,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 15:46:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:46:55,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 15:46:55,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:46:55,839 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2023-12-16 15:46:55,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:46:55,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:46:55,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037919114] [2023-12-16 15:46:55,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2037919114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:46:55,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:46:55,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 15:46:55,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072398846] [2023-12-16 15:46:55,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:46:55,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 15:46:55,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:46:55,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 15:46:55,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 15:46:55,881 INFO L87 Difference]: Start difference. First operand has 107 states, 87 states have (on average 1.4482758620689655) internal successors, (126), 88 states have internal predecessors, (126), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 15:46:55,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:46:55,966 INFO L93 Difference]: Finished difference Result 211 states and 335 transitions. [2023-12-16 15:46:55,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 15:46:55,970 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2023-12-16 15:46:55,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:46:55,976 INFO L225 Difference]: With dead ends: 211 [2023-12-16 15:46:55,976 INFO L226 Difference]: Without dead ends: 105 [2023-12-16 15:46:55,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 15:46:55,983 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:46:55,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 15:46:55,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-16 15:46:56,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-12-16 15:46:56,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 86 states have (on average 1.4069767441860466) internal successors, (121), 86 states have internal predecessors, (121), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 15:46:56,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 155 transitions. [2023-12-16 15:46:56,032 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 155 transitions. Word has length 130 [2023-12-16 15:46:56,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:46:56,032 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 155 transitions. [2023-12-16 15:46:56,033 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 15:46:56,033 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 155 transitions. [2023-12-16 15:46:56,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 15:46:56,037 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:46:56,038 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:46:56,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 15:46:56,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:46:56,249 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:46:56,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:46:56,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1023818250, now seen corresponding path program 1 times [2023-12-16 15:46:56,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:46:56,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [214796046] [2023-12-16 15:46:56,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:46:56,251 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:46:56,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:46:56,253 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:46:56,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 15:46:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:46:56,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 15:46:56,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:46:56,737 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 15:46:56,737 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:46:56,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:46:56,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [214796046] [2023-12-16 15:46:56,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [214796046] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:46:56,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:46:56,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 15:46:56,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694362293] [2023-12-16 15:46:56,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:46:56,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:46:56,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:46:56,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:46:56,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:46:56,744 INFO L87 Difference]: Start difference. First operand 105 states and 155 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:46:56,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:46:56,893 INFO L93 Difference]: Finished difference Result 218 states and 321 transitions. [2023-12-16 15:46:56,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 15:46:56,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2023-12-16 15:46:56,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:46:56,897 INFO L225 Difference]: With dead ends: 218 [2023-12-16 15:46:56,897 INFO L226 Difference]: Without dead ends: 114 [2023-12-16 15:46:56,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 15:46:56,899 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 10 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:46:56,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 579 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 15:46:56,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-16 15:46:56,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 109. [2023-12-16 15:46:56,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 90 states have (on average 1.3888888888888888) internal successors, (125), 90 states have internal predecessors, (125), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 15:46:56,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2023-12-16 15:46:56,906 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 130 [2023-12-16 15:46:56,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:46:56,907 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2023-12-16 15:46:56,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:46:56,907 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2023-12-16 15:46:56,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 15:46:56,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:46:56,908 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:46:56,933 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 (3)] Ended with exit code 0 [2023-12-16 15:46:57,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:46:57,109 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:46:57,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:46:57,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1023877832, now seen corresponding path program 1 times [2023-12-16 15:46:57,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:46:57,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995710930] [2023-12-16 15:46:57,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:46:57,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:46:57,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:46:57,111 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:46:57,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 15:46:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:46:57,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-16 15:46:57,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:46:58,129 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 17 treesize of output 13 [2023-12-16 15:46:58,163 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 17 treesize of output 13 [2023-12-16 15:46:58,207 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 21 treesize of output 13 [2023-12-16 15:46:58,242 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 3 proven. 217 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-12-16 15:46:58,242 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:46:58,455 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 15:46:58,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:46:58,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1995710930] [2023-12-16 15:46:58,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1995710930] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 15:46:58,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 15:46:58,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2023-12-16 15:46:58,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430713423] [2023-12-16 15:46:58,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:46:58,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 15:46:58,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:46:58,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 15:46:58,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-12-16 15:46:58,457 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:46:59,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:46:59,237 INFO L93 Difference]: Finished difference Result 383 states and 550 transitions. [2023-12-16 15:46:59,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 15:46:59,238 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2023-12-16 15:46:59,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:46:59,240 INFO L225 Difference]: With dead ends: 383 [2023-12-16 15:46:59,240 INFO L226 Difference]: Without dead ends: 275 [2023-12-16 15:46:59,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2023-12-16 15:46:59,241 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 559 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 15:46:59,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 1039 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 15:46:59,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-12-16 15:46:59,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 189. [2023-12-16 15:46:59,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 157 states have (on average 1.375796178343949) internal successors, (216), 158 states have internal predecessors, (216), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 15:46:59,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 274 transitions. [2023-12-16 15:46:59,253 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 274 transitions. Word has length 130 [2023-12-16 15:46:59,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:46:59,254 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 274 transitions. [2023-12-16 15:46:59,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:46:59,254 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 274 transitions. [2023-12-16 15:46:59,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 15:46:59,255 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:46:59,255 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:46:59,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 15:46:59,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:46:59,466 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:46:59,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:46:59,466 INFO L85 PathProgramCache]: Analyzing trace with hash -715430797, now seen corresponding path program 1 times [2023-12-16 15:46:59,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:46:59,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811235142] [2023-12-16 15:46:59,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:46:59,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:46:59,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:46:59,468 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:46:59,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 15:46:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:46:59,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 15:46:59,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:47:00,276 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 27 treesize of output 15 [2023-12-16 15:47:00,325 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 15 proven. 109 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 15:47:00,325 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:47:00,437 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 15:47:00,438 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:47:00,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [811235142] [2023-12-16 15:47:00,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [811235142] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 15:47:00,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 15:47:00,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-12-16 15:47:00,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008666758] [2023-12-16 15:47:00,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:47:00,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:47:00,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:47:00,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:47:00,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-12-16 15:47:00,439 INFO L87 Difference]: Start difference. First operand 189 states and 274 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:00,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:47:00,582 INFO L93 Difference]: Finished difference Result 436 states and 629 transitions. [2023-12-16 15:47:00,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 15:47:00,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2023-12-16 15:47:00,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:47:00,585 INFO L225 Difference]: With dead ends: 436 [2023-12-16 15:47:00,585 INFO L226 Difference]: Without dead ends: 248 [2023-12-16 15:47:00,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-16 15:47:00,587 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 171 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:47:00,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 540 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 15:47:00,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-12-16 15:47:00,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 190. [2023-12-16 15:47:00,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 158 states have (on average 1.3670886075949367) internal successors, (216), 159 states have internal predecessors, (216), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 15:47:00,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 274 transitions. [2023-12-16 15:47:00,597 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 274 transitions. Word has length 131 [2023-12-16 15:47:00,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:47:00,597 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 274 transitions. [2023-12-16 15:47:00,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:00,597 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 274 transitions. [2023-12-16 15:47:00,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 15:47:00,598 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:47:00,598 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:47:00,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 15:47:00,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:00,809 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:47:00,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:47:00,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1499063075, now seen corresponding path program 1 times [2023-12-16 15:47:00,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:47:00,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585130374] [2023-12-16 15:47:00,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:47:00,810 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:00,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:47:00,811 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:47:00,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 15:47:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:47:01,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 15:47:01,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:47:01,225 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 17 treesize of output 13 [2023-12-16 15:47:01,290 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 15:47:01,290 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:47:01,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:47:01,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585130374] [2023-12-16 15:47:01,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585130374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:47:01,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:47:01,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 15:47:01,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459699176] [2023-12-16 15:47:01,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:47:01,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 15:47:01,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:47:01,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 15:47:01,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:47:01,292 INFO L87 Difference]: Start difference. First operand 190 states and 274 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:01,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:47:01,641 INFO L93 Difference]: Finished difference Result 544 states and 778 transitions. [2023-12-16 15:47:01,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 15:47:01,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2023-12-16 15:47:01,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:47:01,643 INFO L225 Difference]: With dead ends: 544 [2023-12-16 15:47:01,643 INFO L226 Difference]: Without dead ends: 355 [2023-12-16 15:47:01,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-12-16 15:47:01,644 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 162 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 15:47:01,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 848 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 15:47:01,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-12-16 15:47:01,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 220. [2023-12-16 15:47:01,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 188 states have (on average 1.377659574468085) internal successors, (259), 189 states have internal predecessors, (259), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 15:47:01,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 317 transitions. [2023-12-16 15:47:01,656 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 317 transitions. Word has length 132 [2023-12-16 15:47:01,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:47:01,656 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 317 transitions. [2023-12-16 15:47:01,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:01,656 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 317 transitions. [2023-12-16 15:47:01,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 15:47:01,657 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:47:01,657 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:47:01,685 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 [2023-12-16 15:47:01,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:01,885 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:47:01,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:47:01,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1504230652, now seen corresponding path program 1 times [2023-12-16 15:47:01,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:47:01,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019176414] [2023-12-16 15:47:01,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:47:01,887 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:01,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:47:01,888 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:47:01,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 15:47:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:47:02,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 15:47:02,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:47:02,719 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 15 proven. 109 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 15:47:02,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:47:02,819 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 15:47:02,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:47:02,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019176414] [2023-12-16 15:47:02,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019176414] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 15:47:02,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 15:47:02,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2023-12-16 15:47:02,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886010972] [2023-12-16 15:47:02,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:47:02,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:47:02,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:47:02,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:47:02,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-16 15:47:02,821 INFO L87 Difference]: Start difference. First operand 220 states and 317 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:02,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:47:02,940 INFO L93 Difference]: Finished difference Result 468 states and 671 transitions. [2023-12-16 15:47:02,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 15:47:02,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2023-12-16 15:47:02,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:47:02,946 INFO L225 Difference]: With dead ends: 468 [2023-12-16 15:47:02,946 INFO L226 Difference]: Without dead ends: 249 [2023-12-16 15:47:02,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-16 15:47:02,947 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 113 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:47:02,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 434 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 15:47:02,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-12-16 15:47:02,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 220. [2023-12-16 15:47:02,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 188 states have (on average 1.3670212765957446) internal successors, (257), 189 states have internal predecessors, (257), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 15:47:02,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 315 transitions. [2023-12-16 15:47:02,958 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 315 transitions. Word has length 132 [2023-12-16 15:47:02,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:47:02,959 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 315 transitions. [2023-12-16 15:47:02,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:02,959 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 315 transitions. [2023-12-16 15:47:02,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 15:47:02,961 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:47:02,961 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:47:02,992 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 (7)] Ended with exit code 0 [2023-12-16 15:47:03,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:03,174 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:47:03,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:47:03,174 INFO L85 PathProgramCache]: Analyzing trace with hash 408018346, now seen corresponding path program 1 times [2023-12-16 15:47:03,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:47:03,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811704786] [2023-12-16 15:47:03,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:47:03,175 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:03,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:47:03,176 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:47:03,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 15:47:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:47:03,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-16 15:47:03,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:47:03,733 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 13 [2023-12-16 15:47:03,741 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 13 treesize of output 9 [2023-12-16 15:47:03,793 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 25 treesize of output 21 [2023-12-16 15:47:03,802 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 21 treesize of output 17 [2023-12-16 15:47:03,844 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 [2023-12-16 15:47:04,899 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 49 treesize of output 37 [2023-12-16 15:47:04,903 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 60 treesize of output 40 [2023-12-16 15:47:05,458 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 15:47:05,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:47:05,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:47:05,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811704786] [2023-12-16 15:47:05,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811704786] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:47:05,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:47:05,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 15:47:05,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772679374] [2023-12-16 15:47:05,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:47:05,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 15:47:05,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:47:05,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 15:47:05,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-16 15:47:05,460 INFO L87 Difference]: Start difference. First operand 220 states and 315 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:12,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:47:12,278 INFO L93 Difference]: Finished difference Result 707 states and 983 transitions. [2023-12-16 15:47:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 15:47:12,281 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2023-12-16 15:47:12,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:47:12,283 INFO L225 Difference]: With dead ends: 707 [2023-12-16 15:47:12,283 INFO L226 Difference]: Without dead ends: 488 [2023-12-16 15:47:12,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-16 15:47:12,284 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 247 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-16 15:47:12,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 1509 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-16 15:47:12,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-12-16 15:47:12,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 306. [2023-12-16 15:47:12,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 262 states have (on average 1.3473282442748091) internal successors, (353), 265 states have internal predecessors, (353), 39 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (39), 36 states have call predecessors, (39), 39 states have call successors, (39) [2023-12-16 15:47:12,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 431 transitions. [2023-12-16 15:47:12,298 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 431 transitions. Word has length 133 [2023-12-16 15:47:12,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:47:12,299 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 431 transitions. [2023-12-16 15:47:12,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:12,299 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 431 transitions. [2023-12-16 15:47:12,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 15:47:12,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:47:12,300 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:47:12,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 15:47:12,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:12,501 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:47:12,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:47:12,501 INFO L85 PathProgramCache]: Analyzing trace with hash -603098904, now seen corresponding path program 1 times [2023-12-16 15:47:12,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:47:12,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227272544] [2023-12-16 15:47:12,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:47:12,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:12,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:47:12,524 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:47:12,533 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 (9)] Waiting until timeout for monitored process [2023-12-16 15:47:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:47:12,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 15:47:12,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:47:13,025 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 34 treesize of output 22 [2023-12-16 15:47:13,030 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 14 [2023-12-16 15:47:13,080 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 15:47:13,080 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:47:13,080 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:47:13,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [227272544] [2023-12-16 15:47:13,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [227272544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:47:13,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:47:13,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 15:47:13,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789412993] [2023-12-16 15:47:13,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:47:13,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:47:13,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:47:13,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:47:13,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:47:13,082 INFO L87 Difference]: Start difference. First operand 306 states and 431 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:13,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:47:13,715 INFO L93 Difference]: Finished difference Result 611 states and 855 transitions. [2023-12-16 15:47:13,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 15:47:13,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2023-12-16 15:47:13,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:47:13,717 INFO L225 Difference]: With dead ends: 611 [2023-12-16 15:47:13,717 INFO L226 Difference]: Without dead ends: 316 [2023-12-16 15:47:13,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:47:13,718 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 92 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 15:47:13,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 708 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 15:47:13,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-12-16 15:47:13,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 270. [2023-12-16 15:47:13,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 226 states have (on average 1.331858407079646) internal successors, (301), 229 states have internal predecessors, (301), 39 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (39), 36 states have call predecessors, (39), 39 states have call successors, (39) [2023-12-16 15:47:13,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 379 transitions. [2023-12-16 15:47:13,729 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 379 transitions. Word has length 133 [2023-12-16 15:47:13,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:47:13,730 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 379 transitions. [2023-12-16 15:47:13,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:13,730 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 379 transitions. [2023-12-16 15:47:13,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 15:47:13,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:47:13,731 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:47:13,742 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 (9)] Forceful destruction successful, exit code 0 [2023-12-16 15:47:13,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:13,932 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:47:13,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:47:13,932 INFO L85 PathProgramCache]: Analyzing trace with hash 2057422319, now seen corresponding path program 1 times [2023-12-16 15:47:13,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:47:13,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [65331275] [2023-12-16 15:47:13,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:47:13,933 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:13,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:47:13,933 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:47:13,935 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 (10)] Waiting until timeout for monitored process [2023-12-16 15:47:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:47:14,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 15:47:14,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:47:14,383 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 15:47:14,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:47:14,383 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:47:14,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [65331275] [2023-12-16 15:47:14,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [65331275] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:47:14,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:47:14,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 15:47:14,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266020338] [2023-12-16 15:47:14,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:47:14,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:47:14,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:47:14,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:47:14,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:47:14,384 INFO L87 Difference]: Start difference. First operand 270 states and 379 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:14,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:47:14,516 INFO L93 Difference]: Finished difference Result 598 states and 836 transitions. [2023-12-16 15:47:14,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 15:47:14,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2023-12-16 15:47:14,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:47:14,518 INFO L225 Difference]: With dead ends: 598 [2023-12-16 15:47:14,518 INFO L226 Difference]: Without dead ends: 339 [2023-12-16 15:47:14,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 15:47:14,519 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 61 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:47:14,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 617 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 15:47:14,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-12-16 15:47:14,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 275. [2023-12-16 15:47:14,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 231 states have (on average 1.3246753246753247) internal successors, (306), 234 states have internal predecessors, (306), 39 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (39), 36 states have call predecessors, (39), 39 states have call successors, (39) [2023-12-16 15:47:14,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 384 transitions. [2023-12-16 15:47:14,543 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 384 transitions. Word has length 133 [2023-12-16 15:47:14,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:47:14,543 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 384 transitions. [2023-12-16 15:47:14,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:14,544 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 384 transitions. [2023-12-16 15:47:14,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-16 15:47:14,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:47:14,545 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:47:14,560 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 (10)] Forceful destruction successful, exit code 0 [2023-12-16 15:47:14,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:14,756 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:47:14,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:47:14,757 INFO L85 PathProgramCache]: Analyzing trace with hash -428122449, now seen corresponding path program 1 times [2023-12-16 15:47:14,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:47:14,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741255378] [2023-12-16 15:47:14,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:47:14,757 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:14,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:47:14,760 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:47:14,769 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 (11)] Waiting until timeout for monitored process [2023-12-16 15:47:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:47:15,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 15:47:15,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:47:15,271 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 17 treesize of output 13 [2023-12-16 15:47:15,288 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 31 treesize of output 23 [2023-12-16 15:47:15,293 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 13 treesize of output 9 [2023-12-16 15:47:15,321 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 [2023-12-16 15:47:15,325 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 18 treesize of output 10 [2023-12-16 15:47:15,347 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 15:47:15,347 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:47:15,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:47:15,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741255378] [2023-12-16 15:47:15,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [741255378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:47:15,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:47:15,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 15:47:15,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753973768] [2023-12-16 15:47:15,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:47:15,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:47:15,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:47:15,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:47:15,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:47:15,349 INFO L87 Difference]: Start difference. First operand 275 states and 384 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:16,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:47:16,328 INFO L93 Difference]: Finished difference Result 884 states and 1217 transitions. [2023-12-16 15:47:16,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 15:47:16,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2023-12-16 15:47:16,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:47:16,331 INFO L225 Difference]: With dead ends: 884 [2023-12-16 15:47:16,331 INFO L226 Difference]: Without dead ends: 620 [2023-12-16 15:47:16,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 15:47:16,332 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 330 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 15:47:16,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 882 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 15:47:16,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2023-12-16 15:47:16,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 606. [2023-12-16 15:47:16,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 496 states have (on average 1.284274193548387) internal successors, (637), 503 states have internal predecessors, (637), 97 states have call successors, (97), 12 states have call predecessors, (97), 12 states have return successors, (97), 90 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-16 15:47:16,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 831 transitions. [2023-12-16 15:47:16,359 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 831 transitions. Word has length 134 [2023-12-16 15:47:16,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:47:16,360 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 831 transitions. [2023-12-16 15:47:16,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:16,360 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 831 transitions. [2023-12-16 15:47:16,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 15:47:16,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:47:16,361 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:47:16,371 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 (11)] Forceful destruction successful, exit code 0 [2023-12-16 15:47:16,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:16,571 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:47:16,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:47:16,571 INFO L85 PathProgramCache]: Analyzing trace with hash -942708217, now seen corresponding path program 1 times [2023-12-16 15:47:16,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:47:16,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453899114] [2023-12-16 15:47:16,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:47:16,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:16,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:47:16,573 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:47:16,575 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 (12)] Waiting until timeout for monitored process [2023-12-16 15:47:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:47:17,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 15:47:17,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:47:17,093 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 35 treesize of output 23 [2023-12-16 15:47:17,097 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 23 treesize of output 15 [2023-12-16 15:47:17,160 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 15:47:17,160 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:47:17,160 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:47:17,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453899114] [2023-12-16 15:47:17,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453899114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:47:17,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:47:17,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 15:47:17,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671186799] [2023-12-16 15:47:17,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:47:17,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:47:17,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:47:17,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:47:17,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:47:17,161 INFO L87 Difference]: Start difference. First operand 606 states and 831 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:17,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:47:17,741 INFO L93 Difference]: Finished difference Result 1203 states and 1638 transitions. [2023-12-16 15:47:17,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 15:47:17,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2023-12-16 15:47:17,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:47:17,743 INFO L225 Difference]: With dead ends: 1203 [2023-12-16 15:47:17,743 INFO L226 Difference]: Without dead ends: 608 [2023-12-16 15:47:17,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:47:17,745 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 79 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 15:47:17,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 557 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 15:47:17,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2023-12-16 15:47:17,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 424. [2023-12-16 15:47:17,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 357 states have (on average 1.2997198879551821) internal successors, (464), 359 states have internal predecessors, (464), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-16 15:47:17,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 580 transitions. [2023-12-16 15:47:17,765 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 580 transitions. Word has length 135 [2023-12-16 15:47:17,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:47:17,765 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 580 transitions. [2023-12-16 15:47:17,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:17,765 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 580 transitions. [2023-12-16 15:47:17,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 15:47:17,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:47:17,766 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:47:17,776 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 (12)] Ended with exit code 0 [2023-12-16 15:47:17,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:17,977 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:47:17,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:47:17,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1673912260, now seen corresponding path program 1 times [2023-12-16 15:47:17,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:47:17,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400465367] [2023-12-16 15:47:17,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:47:17,978 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:17,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:47:17,987 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:47:17,989 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 (13)] Waiting until timeout for monitored process [2023-12-16 15:47:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:47:18,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 15:47:18,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:47:18,637 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 17 treesize of output 13 [2023-12-16 15:47:18,703 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-16 15:47:18,703 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:47:18,782 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 15:47:18,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:47:18,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400465367] [2023-12-16 15:47:18,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [400465367] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 15:47:18,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 15:47:18,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 10 [2023-12-16 15:47:18,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196890527] [2023-12-16 15:47:18,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:47:18,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 15:47:18,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:47:18,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 15:47:18,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-16 15:47:18,784 INFO L87 Difference]: Start difference. First operand 424 states and 580 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:19,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:47:19,279 INFO L93 Difference]: Finished difference Result 1006 states and 1370 transitions. [2023-12-16 15:47:19,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 15:47:19,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2023-12-16 15:47:19,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:47:19,281 INFO L225 Difference]: With dead ends: 1006 [2023-12-16 15:47:19,281 INFO L226 Difference]: Without dead ends: 583 [2023-12-16 15:47:19,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-12-16 15:47:19,282 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 161 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 15:47:19,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 1163 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 15:47:19,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-12-16 15:47:19,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 561. [2023-12-16 15:47:19,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 470 states have (on average 1.2851063829787235) internal successors, (604), 474 states have internal predecessors, (604), 78 states have call successors, (78), 12 states have call predecessors, (78), 12 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-16 15:47:19,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 760 transitions. [2023-12-16 15:47:19,304 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 760 transitions. Word has length 135 [2023-12-16 15:47:19,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:47:19,305 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 760 transitions. [2023-12-16 15:47:19,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:19,305 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 760 transitions. [2023-12-16 15:47:19,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 15:47:19,306 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:47:19,306 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:47:19,316 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 (13)] Ended with exit code 0 [2023-12-16 15:47:19,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:19,517 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:47:19,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:47:19,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1558220474, now seen corresponding path program 1 times [2023-12-16 15:47:19,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:47:19,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551478141] [2023-12-16 15:47:19,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:47:19,518 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:19,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:47:19,519 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:47:19,520 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 (14)] Waiting until timeout for monitored process [2023-12-16 15:47:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:47:19,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 15:47:19,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:47:20,239 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 15 proven. 109 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 15:47:20,239 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:47:20,312 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 15:47:20,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:47:20,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1551478141] [2023-12-16 15:47:20,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1551478141] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 15:47:20,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 15:47:20,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2023-12-16 15:47:20,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120132710] [2023-12-16 15:47:20,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:47:20,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:47:20,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:47:20,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:47:20,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-16 15:47:20,314 INFO L87 Difference]: Start difference. First operand 561 states and 760 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:20,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:47:20,466 INFO L93 Difference]: Finished difference Result 1122 states and 1519 transitions. [2023-12-16 15:47:20,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 15:47:20,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2023-12-16 15:47:20,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:47:20,469 INFO L225 Difference]: With dead ends: 1122 [2023-12-16 15:47:20,469 INFO L226 Difference]: Without dead ends: 562 [2023-12-16 15:47:20,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-16 15:47:20,470 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 44 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:47:20,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 577 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 15:47:20,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2023-12-16 15:47:20,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 547. [2023-12-16 15:47:20,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 456 states have (on average 1.280701754385965) internal successors, (584), 460 states have internal predecessors, (584), 78 states have call successors, (78), 12 states have call predecessors, (78), 12 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-16 15:47:20,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 740 transitions. [2023-12-16 15:47:20,492 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 740 transitions. Word has length 136 [2023-12-16 15:47:20,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:47:20,492 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 740 transitions. [2023-12-16 15:47:20,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:47:20,492 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 740 transitions. [2023-12-16 15:47:20,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 15:47:20,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:47:20,493 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:47:20,518 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 (14)] Forceful destruction successful, exit code 0 [2023-12-16 15:47:20,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:20,704 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:47:20,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:47:20,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1645599703, now seen corresponding path program 1 times [2023-12-16 15:47:20,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:47:20,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838059835] [2023-12-16 15:47:20,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:47:20,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:20,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:47:20,706 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:47:20,707 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 (15)] Waiting until timeout for monitored process [2023-12-16 15:47:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:47:21,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 15:47:21,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:47:21,308 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 77 treesize of output 41 [2023-12-16 15:47:21,330 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-16 15:47:21,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:47:21,331 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:47:21,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838059835] [2023-12-16 15:47:21,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838059835] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:47:21,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:47:21,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 15:47:21,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796036810] [2023-12-16 15:47:21,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:47:21,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 15:47:21,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:47:21,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 15:47:21,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:47:21,332 INFO L87 Difference]: Start difference. First operand 547 states and 740 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 15:47:22,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:47:22,223 INFO L93 Difference]: Finished difference Result 1105 states and 1497 transitions. [2023-12-16 15:47:22,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 15:47:22,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 137 [2023-12-16 15:47:22,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:47:22,225 INFO L225 Difference]: With dead ends: 1105 [2023-12-16 15:47:22,225 INFO L226 Difference]: Without dead ends: 559 [2023-12-16 15:47:22,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-16 15:47:22,227 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 110 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 15:47:22,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 473 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 15:47:22,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-12-16 15:47:22,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 547. [2023-12-16 15:47:22,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 456 states have (on average 1.2763157894736843) internal successors, (582), 460 states have internal predecessors, (582), 78 states have call successors, (78), 12 states have call predecessors, (78), 12 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-16 15:47:22,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 738 transitions. [2023-12-16 15:47:22,253 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 738 transitions. Word has length 137 [2023-12-16 15:47:22,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:47:22,254 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 738 transitions. [2023-12-16 15:47:22,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 15:47:22,254 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 738 transitions. [2023-12-16 15:47:22,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 15:47:22,255 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:47:22,255 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:47:22,271 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 (15)] Forceful destruction successful, exit code 0 [2023-12-16 15:47:22,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:22,471 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:47:22,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:47:22,472 INFO L85 PathProgramCache]: Analyzing trace with hash 17082797, now seen corresponding path program 1 times [2023-12-16 15:47:22,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:47:22,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529638635] [2023-12-16 15:47:22,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:47:22,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:22,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:47:22,474 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:47:22,491 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 (16)] Waiting until timeout for monitored process [2023-12-16 15:47:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:47:22,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 15:47:22,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:47:22,919 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-16 15:47:22,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:47:22,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:47:22,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529638635] [2023-12-16 15:47:22,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529638635] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:47:22,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:47:22,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 15:47:22,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131857082] [2023-12-16 15:47:22,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:47:22,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 15:47:22,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:47:22,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 15:47:22,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:47:22,921 INFO L87 Difference]: Start difference. First operand 547 states and 738 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 15:47:23,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:47:23,211 INFO L93 Difference]: Finished difference Result 1121 states and 1505 transitions. [2023-12-16 15:47:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 15:47:23,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2023-12-16 15:47:23,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:47:23,214 INFO L225 Difference]: With dead ends: 1121 [2023-12-16 15:47:23,214 INFO L226 Difference]: Without dead ends: 571 [2023-12-16 15:47:23,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 15:47:23,217 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 7 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 15:47:23,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 602 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 15:47:23,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-12-16 15:47:23,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 547. [2023-12-16 15:47:23,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 456 states have (on average 1.2719298245614035) internal successors, (580), 460 states have internal predecessors, (580), 78 states have call successors, (78), 12 states have call predecessors, (78), 12 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-16 15:47:23,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 736 transitions. [2023-12-16 15:47:23,246 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 736 transitions. Word has length 139 [2023-12-16 15:47:23,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:47:23,246 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 736 transitions. [2023-12-16 15:47:23,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 15:47:23,246 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 736 transitions. [2023-12-16 15:47:23,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 15:47:23,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:47:23,248 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:47:23,262 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 (16)] Forceful destruction successful, exit code 0 [2023-12-16 15:47:23,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:23,456 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:47:23,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:47:23,457 INFO L85 PathProgramCache]: Analyzing trace with hash -257676817, now seen corresponding path program 1 times [2023-12-16 15:47:23,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:47:23,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802447664] [2023-12-16 15:47:23,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:47:23,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:23,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:47:23,458 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:47:23,460 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 (17)] Waiting until timeout for monitored process [2023-12-16 15:47:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:47:23,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-16 15:47:23,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:47:25,315 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 [2023-12-16 15:47:25,489 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 125 treesize of output 89 [2023-12-16 15:47:25,491 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 135 treesize of output 75 [2023-12-16 15:47:25,550 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-16 15:47:25,550 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:47:25,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:47:25,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802447664] [2023-12-16 15:47:25,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802447664] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 15:47:25,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [273812591] [2023-12-16 15:47:25,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:47:25,797 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 15:47:25,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 15:47:25,798 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 15:47:25,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-16 15:47:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:47:36,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-16 15:47:36,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:47:38,548 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 [2023-12-16 15:47:39,735 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 [2023-12-16 15:47:40,097 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 125 treesize of output 89 [2023-12-16 15:47:40,099 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 135 treesize of output 75 [2023-12-16 15:47:40,117 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-16 15:47:40,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:47:40,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [273812591] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 15:47:40,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 15:47:40,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2023-12-16 15:47:40,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066044090] [2023-12-16 15:47:40,266 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 15:47:40,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-16 15:47:40,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:47:40,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-16 15:47:40,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2023-12-16 15:47:40,267 INFO L87 Difference]: Start difference. First operand 547 states and 736 transitions. Second operand has 26 states, 24 states have (on average 4.875) internal successors, (117), 23 states have internal predecessors, (117), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-12-16 15:47:44,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:47:44,948 INFO L93 Difference]: Finished difference Result 1198 states and 1597 transitions. [2023-12-16 15:47:44,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 15:47:44,965 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 4.875) internal successors, (117), 23 states have internal predecessors, (117), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 139 [2023-12-16 15:47:44,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:47:44,968 INFO L225 Difference]: With dead ends: 1198 [2023-12-16 15:47:44,968 INFO L226 Difference]: Without dead ends: 1196 [2023-12-16 15:47:44,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 298 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=429, Invalid=1641, Unknown=0, NotChecked=0, Total=2070 [2023-12-16 15:47:44,969 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 630 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-16 15:47:44,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 1892 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-16 15:47:44,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2023-12-16 15:47:45,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1107. [2023-12-16 15:47:45,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 924 states have (on average 1.2662337662337662) internal successors, (1170), 934 states have internal predecessors, (1170), 156 states have call successors, (156), 26 states have call predecessors, (156), 26 states have return successors, (156), 146 states have call predecessors, (156), 156 states have call successors, (156) [2023-12-16 15:47:45,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1482 transitions. [2023-12-16 15:47:45,037 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1482 transitions. Word has length 139 [2023-12-16 15:47:45,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:47:45,037 INFO L495 AbstractCegarLoop]: Abstraction has 1107 states and 1482 transitions. [2023-12-16 15:47:45,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 4.875) internal successors, (117), 23 states have internal predecessors, (117), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-12-16 15:47:45,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1482 transitions. [2023-12-16 15:47:45,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 15:47:45,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:47:45,038 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:47:45,049 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 (17)] Forceful destruction successful, exit code 0 [2023-12-16 15:47:45,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-12-16 15:47:45,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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=3,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 15:47:45,449 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:47:45,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:47:45,449 INFO L85 PathProgramCache]: Analyzing trace with hash -257617235, now seen corresponding path program 1 times [2023-12-16 15:47:45,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:47:45,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1726667438] [2023-12-16 15:47:45,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:47:45,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:47:45,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:47:45,451 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:47:45,452 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 (19)] Waiting until timeout for monitored process [2023-12-16 15:48:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:48:02,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-16 15:48:02,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:48:06,119 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 Received shutdown request... [2023-12-16 15:48:07,230 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 (19)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 15:48:07,246 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 15:48:07,256 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 15:48:07,263 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 (19)] Ended with exit code 0 [2023-12-16 15:48:07,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:48:07,447 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 140 with TraceHistMax 17,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-6-1 term,while PolyPacSimplificationTermWalker was simplifying a ∧-6-1 term,while PolyPacSimplificationTermWalker was simplifying 6 xjuncts wrt. a ATOM-1 context. [2023-12-16 15:48:07,451 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:48:07,453 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 15:48:07,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:48:07 BoogieIcfgContainer [2023-12-16 15:48:07,454 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 15:48:07,455 INFO L158 Benchmark]: Toolchain (without parser) took 73939.82ms. Allocated memory was 182.5MB in the beginning and 289.4MB in the end (delta: 107.0MB). Free memory was 131.8MB in the beginning and 180.7MB in the end (delta: -48.9MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. [2023-12-16 15:48:07,455 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 182.5MB. Free memory is still 129.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 15:48:07,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.80ms. Allocated memory is still 182.5MB. Free memory was 131.4MB in the beginning and 116.1MB in the end (delta: 15.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 15:48:07,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.45ms. Allocated memory is still 182.5MB. Free memory was 116.1MB in the beginning and 112.6MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 15:48:07,455 INFO L158 Benchmark]: Boogie Preprocessor took 90.06ms. Allocated memory is still 182.5MB. Free memory was 112.6MB in the beginning and 105.6MB in the end (delta: 7.0MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 15:48:07,455 INFO L158 Benchmark]: RCFGBuilder took 1268.91ms. Allocated memory was 182.5MB in the beginning and 219.2MB in the end (delta: 36.7MB). Free memory was 105.6MB in the beginning and 139.3MB in the end (delta: -33.7MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-16 15:48:07,456 INFO L158 Benchmark]: TraceAbstraction took 72299.40ms. Allocated memory was 219.2MB in the beginning and 289.4MB in the end (delta: 70.3MB). Free memory was 138.2MB in the beginning and 180.7MB in the end (delta: -42.5MB). Peak memory consumption was 27.2MB. Max. memory is 8.0GB. [2023-12-16 15:48:07,457 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 182.5MB. Free memory is still 129.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 227.80ms. Allocated memory is still 182.5MB. Free memory was 131.4MB in the beginning and 116.1MB in the end (delta: 15.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.45ms. Allocated memory is still 182.5MB. Free memory was 116.1MB in the beginning and 112.6MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 90.06ms. Allocated memory is still 182.5MB. Free memory was 112.6MB in the beginning and 105.6MB in the end (delta: 7.0MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1268.91ms. Allocated memory was 182.5MB in the beginning and 219.2MB in the end (delta: 36.7MB). Free memory was 105.6MB in the beginning and 139.3MB in the end (delta: -33.7MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 72299.40ms. Allocated memory was 219.2MB in the beginning and 289.4MB in the end (delta: 70.3MB). Free memory was 138.2MB in the beginning and 180.7MB in the end (delta: -42.5MB). Peak memory consumption was 27.2MB. 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 140 with TraceHistMax 17,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-6-1 term,while PolyPacSimplificationTermWalker was simplifying a ∧-6-1 term,while PolyPacSimplificationTermWalker was simplifying 6 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 72.2s, OverallIterations: 17, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2777 SdHoareTripleChecker+Valid, 13.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2776 mSDsluCounter, 12570 SdHoareTripleChecker+Invalid, 11.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9752 mSDsCounter, 342 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3284 IncrementalHoareTripleChecker+Invalid, 3626 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 342 mSolverCounterUnsat, 2818 mSDtfsCounter, 3284 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3027 GetRequests, 2859 SyntacticMatches, 2 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1107occurred in iteration=16, InterpolantAutomatonStates: 124, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 965 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 14.3s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 2278 NumberOfCodeBlocks, 2278 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2920 ConstructedInterpolants, 13 QuantifiedInterpolants, 16333 SizeOfPredicates, 166 NumberOfNonLiveVariables, 5886 ConjunctsInSsa, 195 ConjunctsInUnsatCore, 22 InterpolantComputations, 15 PerfectInterpolantSequences, 11016/11968 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