/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 15:37:25,869 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 15:37:25,907 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 15:37:25,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 15:37:25,911 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 15:37:25,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 15:37:25,925 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 15:37:25,925 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 15:37:25,926 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 15:37:25,926 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 15:37:25,926 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 15:37:25,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 15:37:25,927 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 15:37:25,927 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 15:37:25,927 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 15:37:25,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 15:37:25,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 15:37:25,928 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 15:37:25,928 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 15:37:25,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 15:37:25,929 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 15:37:25,929 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 15:37:25,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 15:37:25,930 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 15:37:25,930 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 15:37:25,930 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 15:37:25,930 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 15:37:25,931 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 15:37:25,931 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 15:37:25,931 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 15:37:25,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 15:37:25,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 15:37:25,932 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 15:37:25,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 15:37:25,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:37:25,933 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 15:37:25,933 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 15:37:25,933 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 15:37:25,933 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 15:37:25,934 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 15:37:25,934 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 15:37:25,934 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 15:37:25,934 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 15:37:25,935 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 15:37:25,935 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 15:37:25,935 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 15:37:25,935 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 15:37:26,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 15:37:26,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 15:37:26,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 15:37:26,129 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 15:37:26,129 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 15:37:26,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i [2023-12-16 15:37:27,125 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 15:37:27,286 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 15:37:27,286 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i [2023-12-16 15:37:27,292 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/095942415/3ba2849f251e4972bcef2b4620aa953c/FLAG406276642 [2023-12-16 15:37:27,301 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/095942415/3ba2849f251e4972bcef2b4620aa953c [2023-12-16 15:37:27,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 15:37:27,304 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 15:37:27,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 15:37:27,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 15:37:27,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 15:37:27,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:37:27" (1/1) ... [2023-12-16 15:37:27,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45a607b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:27, skipping insertion in model container [2023-12-16 15:37:27,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:37:27" (1/1) ... [2023-12-16 15:37:27,330 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 15:37:27,420 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i[917,930] [2023-12-16 15:37:27,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:37:27,468 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 15:37:27,476 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i[917,930] [2023-12-16 15:37:27,503 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:37:27,517 INFO L206 MainTranslator]: Completed translation [2023-12-16 15:37:27,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:27 WrapperNode [2023-12-16 15:37:27,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 15:37:27,519 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 15:37:27,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 15:37:27,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 15:37:27,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:27" (1/1) ... [2023-12-16 15:37:27,535 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:27" (1/1) ... [2023-12-16 15:37:27,561 INFO L138 Inliner]: procedures = 33, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 450 [2023-12-16 15:37:27,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 15:37:27,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 15:37:27,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 15:37:27,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 15:37:27,583 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:27" (1/1) ... [2023-12-16 15:37:27,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:27" (1/1) ... [2023-12-16 15:37:27,588 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:27" (1/1) ... [2023-12-16 15:37:27,603 INFO L175 MemorySlicer]: Split 124 memory accesses to 6 slices as follows [2, 14, 23, 8, 24, 53]. 43 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 3, 1, 2, 4]. The 15 writes are split as follows [0, 2, 5, 2, 2, 4]. [2023-12-16 15:37:27,603 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:27" (1/1) ... [2023-12-16 15:37:27,603 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:27" (1/1) ... [2023-12-16 15:37:27,625 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:27" (1/1) ... [2023-12-16 15:37:27,627 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:27" (1/1) ... [2023-12-16 15:37:27,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:27" (1/1) ... [2023-12-16 15:37:27,649 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:27" (1/1) ... [2023-12-16 15:37:27,653 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 15:37:27,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 15:37:27,654 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 15:37:27,654 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 15:37:27,655 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:27" (1/1) ... [2023-12-16 15:37:27,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:37:27,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 15:37:27,691 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 15:37:27,715 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 15:37:27,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 15:37:27,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-16 15:37:27,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-16 15:37:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-16 15:37:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-16 15:37:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-16 15:37:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-12-16 15:37:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2023-12-16 15:37:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2023-12-16 15:37:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2023-12-16 15:37:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2023-12-16 15:37:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2023-12-16 15:37:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2023-12-16 15:37:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 15:37:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 15:37:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 15:37:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 15:37:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 15:37:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-16 15:37:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-16 15:37:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-16 15:37:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-12-16 15:37:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-12-16 15:37:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-12-16 15:37:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2023-12-16 15:37:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-16 15:37:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-16 15:37:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-16 15:37:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-16 15:37:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-12-16 15:37:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-12-16 15:37:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2023-12-16 15:37:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2023-12-16 15:37:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2023-12-16 15:37:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2023-12-16 15:37:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2023-12-16 15:37:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2023-12-16 15:37:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 15:37:27,739 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 15:37:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 15:37:27,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 15:37:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-16 15:37:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-16 15:37:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-16 15:37:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-16 15:37:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-16 15:37:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-12-16 15:37:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2023-12-16 15:37:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2023-12-16 15:37:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2023-12-16 15:37:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2023-12-16 15:37:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2023-12-16 15:37:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2023-12-16 15:37:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-16 15:37:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-16 15:37:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-16 15:37:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-16 15:37:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-12-16 15:37:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-12-16 15:37:27,891 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 15:37:27,892 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 15:37:28,251 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 15:37:28,302 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 15:37:28,302 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 15:37:28,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:37:28 BoogieIcfgContainer [2023-12-16 15:37:28,302 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 15:37:28,305 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 15:37:28,305 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 15:37:28,307 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 15:37:28,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:37:27" (1/3) ... [2023-12-16 15:37:28,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40088e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:37:28, skipping insertion in model container [2023-12-16 15:37:28,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:27" (2/3) ... [2023-12-16 15:37:28,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40088e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:37:28, skipping insertion in model container [2023-12-16 15:37:28,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:37:28" (3/3) ... [2023-12-16 15:37:28,310 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-32.i [2023-12-16 15:37:28,322 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 15:37:28,322 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 15:37:28,357 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 15:37:28,361 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;@19a0cc0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 15:37:28,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 15:37:28,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 71 states have (on average 1.408450704225352) internal successors, (100), 72 states have internal predecessors, (100), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 15:37:28,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-16 15:37:28,375 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:37:28,375 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:37:28,376 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:37:28,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:37:28,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1301880535, now seen corresponding path program 1 times [2023-12-16 15:37:28,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:37:28,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979152291] [2023-12-16 15:37:28,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:28,390 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 15:37:28,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:37:28,405 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 15:37:28,407 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 15:37:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:28,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 15:37:28,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:28,654 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-12-16 15:37:28,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:37:28,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:37:28,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979152291] [2023-12-16 15:37:28,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979152291] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:37:28,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:37:28,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 15:37:28,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489004496] [2023-12-16 15:37:28,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:37:28,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 15:37:28,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:37:28,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 15:37:28,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 15:37:28,683 INFO L87 Difference]: Start difference. First operand has 92 states, 71 states have (on average 1.408450704225352) internal successors, (100), 72 states have internal predecessors, (100), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 15:37:28,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:37:28,726 INFO L93 Difference]: Finished difference Result 181 states and 288 transitions. [2023-12-16 15:37:28,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 15:37:28,728 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 124 [2023-12-16 15:37:28,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:37:28,733 INFO L225 Difference]: With dead ends: 181 [2023-12-16 15:37:28,733 INFO L226 Difference]: Without dead ends: 90 [2023-12-16 15:37:28,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 123 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 15:37:28,738 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 15:37:28,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 15:37:28,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-16 15:37:28,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-12-16 15:37:28,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 70 states have (on average 1.3) internal successors, (91), 70 states have internal predecessors, (91), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 15:37:28,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2023-12-16 15:37:28,769 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 124 [2023-12-16 15:37:28,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:37:28,769 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2023-12-16 15:37:28,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 15:37:28,770 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2023-12-16 15:37:28,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-16 15:37:28,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:37:28,773 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:37:28,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 15:37:28,980 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 15:37:28,980 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:37:28,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:37:28,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1738315597, now seen corresponding path program 1 times [2023-12-16 15:37:28,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:37:28,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98320650] [2023-12-16 15:37:28,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:28,982 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 15:37:28,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:37:29,005 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 15:37:29,006 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 15:37:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:29,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 15:37:29,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:29,220 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 15:37:29,388 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 15:37:29,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:37:29,391 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:37:29,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98320650] [2023-12-16 15:37:29,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98320650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:37:29,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:37:29,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 15:37:29,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246717387] [2023-12-16 15:37:29,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:37:29,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 15:37:29,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:37:29,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 15:37:29,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 15:37:29,400 INFO L87 Difference]: Start difference. First operand 90 states and 127 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 15:37:29,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:37:29,583 INFO L93 Difference]: Finished difference Result 306 states and 432 transitions. [2023-12-16 15:37:29,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 15:37:29,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2023-12-16 15:37:29,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:37:29,589 INFO L225 Difference]: With dead ends: 306 [2023-12-16 15:37:29,589 INFO L226 Difference]: Without dead ends: 217 [2023-12-16 15:37:29,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:37:29,591 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 203 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:37:29,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 350 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 15:37:29,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-12-16 15:37:29,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 185. [2023-12-16 15:37:29,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 146 states have (on average 1.3013698630136987) internal successors, (190), 146 states have internal predecessors, (190), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 15:37:29,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 262 transitions. [2023-12-16 15:37:29,632 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 262 transitions. Word has length 124 [2023-12-16 15:37:29,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:37:29,633 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 262 transitions. [2023-12-16 15:37:29,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 15:37:29,633 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 262 transitions. [2023-12-16 15:37:29,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 15:37:29,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:37:29,640 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:37:29,658 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 15:37:29,845 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 15:37:29,845 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:37:29,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:37:29,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1084937767, now seen corresponding path program 1 times [2023-12-16 15:37:29,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:37:29,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910264757] [2023-12-16 15:37:29,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:29,847 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 15:37:29,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:37:29,855 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 15:37:29,872 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 15:37:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:30,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-16 15:37:30,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:31,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-16 15:37:31,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2023-12-16 15:37:31,919 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 12 treesize of output 8 [2023-12-16 15:37:32,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-12-16 15:37:32,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2023-12-16 15:37:33,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2023-12-16 15:37:33,236 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:37:33,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 14 [2023-12-16 15:37:33,566 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:37:33,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 37 [2023-12-16 15:37:33,698 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 75 proven. 368 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-12-16 15:37:33,699 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:37:34,135 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 15:37:34,135 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:37:34,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910264757] [2023-12-16 15:37:34,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [910264757] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 15:37:34,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 15:37:34,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18] total 26 [2023-12-16 15:37:34,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348642078] [2023-12-16 15:37:34,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:37:34,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 15:37:34,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:37:34,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 15:37:34,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2023-12-16 15:37:34,137 INFO L87 Difference]: Start difference. First operand 185 states and 262 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 15:37:36,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:37:36,036 INFO L93 Difference]: Finished difference Result 728 states and 1033 transitions. [2023-12-16 15:37:36,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-16 15:37:36,037 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 132 [2023-12-16 15:37:36,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:37:36,040 INFO L225 Difference]: With dead ends: 728 [2023-12-16 15:37:36,040 INFO L226 Difference]: Without dead ends: 544 [2023-12-16 15:37:36,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=182, Invalid=1224, Unknown=0, NotChecked=0, Total=1406 [2023-12-16 15:37:36,042 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 360 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 15:37:36,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 995 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 15:37:36,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2023-12-16 15:37:36,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 449. [2023-12-16 15:37:36,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 366 states have (on average 1.3169398907103824) internal successors, (482), 370 states have internal predecessors, (482), 76 states have call successors, (76), 6 states have call predecessors, (76), 6 states have return successors, (76), 72 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-16 15:37:36,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 634 transitions. [2023-12-16 15:37:36,082 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 634 transitions. Word has length 132 [2023-12-16 15:37:36,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:37:36,083 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 634 transitions. [2023-12-16 15:37:36,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 15:37:36,083 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 634 transitions. [2023-12-16 15:37:36,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 15:37:36,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:37:36,096 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:37:36,101 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 15:37:36,301 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 15:37:36,301 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:37:36,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:37:36,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1819575011, now seen corresponding path program 1 times [2023-12-16 15:37:36,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:37:36,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439995927] [2023-12-16 15:37:36,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:36,302 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 15:37:36,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:37:36,304 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 15:37:36,305 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 15:37:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:36,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-16 15:37:36,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:37,427 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 15:37:37,565 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 15:37:37,704 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 15:37:37,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2023-12-16 15:37:37,951 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:37:37,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 17 [2023-12-16 15:37:37,990 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2023-12-16 15:37:37,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:37:38,132 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 15:37:38,132 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:37:38,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439995927] [2023-12-16 15:37:38,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439995927] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 15:37:38,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 15:37:38,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2023-12-16 15:37:38,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86025969] [2023-12-16 15:37:38,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:37:38,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 15:37:38,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:37:38,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 15:37:38,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-12-16 15:37:38,134 INFO L87 Difference]: Start difference. First operand 449 states and 634 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 15:37:38,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:37:38,754 INFO L93 Difference]: Finished difference Result 1052 states and 1485 transitions. [2023-12-16 15:37:38,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 15:37:38,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 133 [2023-12-16 15:37:38,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:37:38,762 INFO L225 Difference]: With dead ends: 1052 [2023-12-16 15:37:38,762 INFO L226 Difference]: Without dead ends: 604 [2023-12-16 15:37:38,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=417, Unknown=0, NotChecked=0, Total=506 [2023-12-16 15:37:38,766 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 279 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 15:37:38,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 745 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 15:37:38,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2023-12-16 15:37:38,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 477. [2023-12-16 15:37:38,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 384 states have (on average 1.3020833333333333) internal successors, (500), 388 states have internal predecessors, (500), 84 states have call successors, (84), 8 states have call predecessors, (84), 8 states have return successors, (84), 80 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-16 15:37:38,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 668 transitions. [2023-12-16 15:37:38,800 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 668 transitions. Word has length 133 [2023-12-16 15:37:38,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:37:38,801 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 668 transitions. [2023-12-16 15:37:38,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 15:37:38,801 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 668 transitions. [2023-12-16 15:37:38,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-16 15:37:38,803 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:37:38,803 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:37:38,820 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 15:37:39,008 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 15:37:39,008 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:37:39,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:37:39,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1886227570, now seen corresponding path program 1 times [2023-12-16 15:37:39,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:37:39,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466088734] [2023-12-16 15:37:39,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:39,009 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 15:37:39,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:37:39,024 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 15:37:39,037 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 15:37:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:39,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-16 15:37:39,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:41,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-16 15:37:41,418 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 15:37:41,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2023-12-16 15:37:42,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 59 [2023-12-16 15:37:43,497 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:37:43,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 85 treesize of output 49 [2023-12-16 15:37:43,602 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 106 proven. 71 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-16 15:37:43,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:37:45,998 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:37:45,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466088734] [2023-12-16 15:37:45,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [466088734] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 15:37:45,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [209071682] [2023-12-16 15:37:45,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:45,999 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 15:37:45,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 15:37:46,037 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 15:37:46,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-16 15:37:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:46,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 65 conjunts are in the unsatisfiable core [2023-12-16 15:37:46,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:49,370 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 15:37:50,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-16 15:37:51,209 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 12 treesize of output 8 [2023-12-16 15:37:51,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-16 15:37:53,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-12-16 15:37:56,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 63 [2023-12-16 15:37:56,760 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 15:37:57,400 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 26 treesize of output 18 [2023-12-16 15:37:59,378 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 89 proven. 351 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-12-16 15:37:59,378 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:38:04,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [209071682] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 15:38:04,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 15:38:04,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 30] total 51 [2023-12-16 15:38:04,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980208922] [2023-12-16 15:38:04,523 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 15:38:04,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-12-16 15:38:04,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:38:04,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-12-16 15:38:04,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=583, Invalid=4819, Unknown=0, NotChecked=0, Total=5402 [2023-12-16 15:38:04,526 INFO L87 Difference]: Start difference. First operand 477 states and 668 transitions. Second operand has 52 states, 47 states have (on average 2.3617021276595747) internal successors, (111), 46 states have internal predecessors, (111), 11 states have call successors, (36), 8 states have call predecessors, (36), 11 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2023-12-16 15:38:40,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:38:40,788 INFO L93 Difference]: Finished difference Result 1148 states and 1551 transitions. [2023-12-16 15:38:40,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2023-12-16 15:38:40,789 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 47 states have (on average 2.3617021276595747) internal successors, (111), 46 states have internal predecessors, (111), 11 states have call successors, (36), 8 states have call predecessors, (36), 11 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) Word has length 134 [2023-12-16 15:38:40,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:38:40,791 INFO L225 Difference]: With dead ends: 1148 [2023-12-16 15:38:40,791 INFO L226 Difference]: Without dead ends: 672 [2023-12-16 15:38:40,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9789 ImplicationChecksByTransitivity, 38.8s TimeCoverageRelationStatistics Valid=4568, Invalid=26584, Unknown=0, NotChecked=0, Total=31152 [2023-12-16 15:38:40,798 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 2864 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 4211 mSolverCounterSat, 707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2865 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 4918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 707 IncrementalHoareTripleChecker+Valid, 4211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-12-16 15:38:40,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2865 Valid, 2394 Invalid, 4918 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [707 Valid, 4211 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2023-12-16 15:38:40,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2023-12-16 15:38:40,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 483. [2023-12-16 15:38:40,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 388 states have (on average 1.288659793814433) internal successors, (500), 392 states have internal predecessors, (500), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-16 15:38:40,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 660 transitions. [2023-12-16 15:38:40,853 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 660 transitions. Word has length 134 [2023-12-16 15:38:40,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:38:40,854 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 660 transitions. [2023-12-16 15:38:40,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 47 states have (on average 2.3617021276595747) internal successors, (111), 46 states have internal predecessors, (111), 11 states have call successors, (36), 8 states have call predecessors, (36), 11 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2023-12-16 15:38:40,854 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 660 transitions. [2023-12-16 15:38:40,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-16 15:38:40,856 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:38:40,856 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:38:40,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 Received shutdown request... [2023-12-16 15:38:41,075 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 15:38:41,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:38:41,260 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:38:41,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:38:41,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1742443630, now seen corresponding path program 1 times [2023-12-16 15:38:41,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:38:41,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311637987] [2023-12-16 15:38:41,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:38:41,261 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 15:38:41,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:38:41,288 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 15:38:41,289 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 15:38:41,290 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 15:38:41,290 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 15:38:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:38:41,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 15:38:41,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:38:41,463 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 15:38:41,474 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 15:38:41,663 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 15:38:41,664 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 135 with TraceHistMax 18,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-2-2-1 context. [2023-12-16 15:38:41,668 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-16 15:38:41,670 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 15:38:41,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:38:41 BoogieIcfgContainer [2023-12-16 15:38:41,671 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 15:38:41,674 INFO L158 Benchmark]: Toolchain (without parser) took 74370.52ms. Allocated memory was 168.8MB in the beginning and 679.5MB in the end (delta: 510.7MB). Free memory was 122.6MB in the beginning and 252.4MB in the end (delta: -129.8MB). Peak memory consumption was 381.2MB. Max. memory is 8.0GB. [2023-12-16 15:38:41,675 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 168.8MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 15:38:41,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.47ms. Allocated memory is still 168.8MB. Free memory was 122.3MB in the beginning and 106.5MB in the end (delta: 15.8MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 15:38:41,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.23ms. Allocated memory is still 168.8MB. Free memory was 106.5MB in the beginning and 103.0MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 15:38:41,678 INFO L158 Benchmark]: Boogie Preprocessor took 91.15ms. Allocated memory is still 168.8MB. Free memory was 103.0MB in the beginning and 98.1MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 15:38:41,679 INFO L158 Benchmark]: RCFGBuilder took 648.37ms. Allocated memory is still 168.8MB. Free memory was 98.1MB in the beginning and 113.5MB in the end (delta: -15.3MB). Peak memory consumption was 22.1MB. Max. memory is 8.0GB. [2023-12-16 15:38:41,679 INFO L158 Benchmark]: TraceAbstraction took 73368.96ms. Allocated memory was 168.8MB in the beginning and 679.5MB in the end (delta: 510.7MB). Free memory was 112.9MB in the beginning and 252.4MB in the end (delta: -139.5MB). Peak memory consumption was 370.7MB. Max. memory is 8.0GB. [2023-12-16 15:38:41,680 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 168.8MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 213.47ms. Allocated memory is still 168.8MB. Free memory was 122.3MB in the beginning and 106.5MB in the end (delta: 15.8MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.23ms. Allocated memory is still 168.8MB. Free memory was 106.5MB in the beginning and 103.0MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 91.15ms. Allocated memory is still 168.8MB. Free memory was 103.0MB in the beginning and 98.1MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 648.37ms. Allocated memory is still 168.8MB. Free memory was 98.1MB in the beginning and 113.5MB in the end (delta: -15.3MB). Peak memory consumption was 22.1MB. Max. memory is 8.0GB. * TraceAbstraction took 73368.96ms. Allocated memory was 168.8MB in the beginning and 679.5MB in the end (delta: 510.7MB). Free memory was 112.9MB in the beginning and 252.4MB in the end (delta: -139.5MB). Peak memory consumption was 370.7MB. 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 135 with TraceHistMax 18,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 73.3s, OverallIterations: 6, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 39.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3707 SdHoareTripleChecker+Valid, 12.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3706 mSDsluCounter, 4607 SdHoareTripleChecker+Invalid, 11.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4050 mSDsCounter, 754 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5135 IncrementalHoareTripleChecker+Invalid, 5889 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 754 mSolverCounterUnsat, 557 mSDtfsCounter, 5135 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1214 GetRequests, 979 SyntacticMatches, 0 SemanticMatches, 235 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10175 ImplicationChecksByTransitivity, 40.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=483occurred in iteration=5, InterpolantAutomatonStates: 149, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 443 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 30.8s InterpolantComputationTime, 781 NumberOfCodeBlocks, 781 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1038 ConstructedInterpolants, 143 QuantifiedInterpolants, 20743 SizeOfPredicates, 104 NumberOfNonLiveVariables, 1715 ConjunctsInSsa, 166 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 3978/4896 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