/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-86.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 15:43:09,474 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 15:43:09,548 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 15:43:09,553 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 15:43:09,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 15:43:09,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 15:43:09,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 15:43:09,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 15:43:09,578 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 15:43:09,582 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 15:43:09,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 15:43:09,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 15:43:09,583 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 15:43:09,584 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 15:43:09,584 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 15:43:09,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 15:43:09,585 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 15:43:09,585 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 15:43:09,585 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 15:43:09,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 15:43:09,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 15:43:09,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 15:43:09,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 15:43:09,586 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 15:43:09,586 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 15:43:09,586 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 15:43:09,587 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 15:43:09,587 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 15:43:09,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 15:43:09,587 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 15:43:09,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 15:43:09,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 15:43:09,588 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 15:43:09,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 15:43:09,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:43:09,588 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 15:43:09,588 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 15:43:09,589 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 15:43:09,589 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 15:43:09,589 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 15:43:09,589 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 15:43:09,589 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 15:43:09,589 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 15:43:09,589 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 15:43:09,590 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 15:43:09,590 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 15:43:09,590 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 15:43:09,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 15:43:09,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 15:43:09,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 15:43:09,809 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 15:43:09,812 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 15:43:09,813 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-86.i [2023-12-16 15:43:10,949 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 15:43:11,172 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 15:43:11,173 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-86.i [2023-12-16 15:43:11,182 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/876a1c979/794ba3a3ccd6429d84c018178628f735/FLAG6595232c5 [2023-12-16 15:43:11,199 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/876a1c979/794ba3a3ccd6429d84c018178628f735 [2023-12-16 15:43:11,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 15:43:11,202 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 15:43:11,203 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 15:43:11,203 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 15:43:11,206 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 15:43:11,207 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:43:11" (1/1) ... [2023-12-16 15:43:11,212 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a56225a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:43:11, skipping insertion in model container [2023-12-16 15:43:11,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:43:11" (1/1) ... [2023-12-16 15:43:11,256 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 15:43:11,354 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-86.i[917,930] [2023-12-16 15:43:11,428 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:43:11,443 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 15:43:11,452 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-86.i[917,930] [2023-12-16 15:43:11,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:43:11,505 INFO L206 MainTranslator]: Completed translation [2023-12-16 15:43:11,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:43:11 WrapperNode [2023-12-16 15:43:11,506 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 15:43:11,507 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 15:43:11,507 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 15:43:11,507 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 15:43:11,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:43:11" (1/1) ... [2023-12-16 15:43:11,526 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:43:11" (1/1) ... [2023-12-16 15:43:11,570 INFO L138 Inliner]: procedures = 36, calls = 247, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 770 [2023-12-16 15:43:11,570 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 15:43:11,571 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 15:43:11,571 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 15:43:11,571 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 15:43:11,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:43:11" (1/1) ... [2023-12-16 15:43:11,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:43:11" (1/1) ... [2023-12-16 15:43:11,594 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:43:11" (1/1) ... [2023-12-16 15:43:11,621 INFO L175 MemorySlicer]: Split 206 memory accesses to 6 slices as follows [2, 14, 27, 43, 5, 115]. 56 percent of accesses are in the largest equivalence class. The 20 initializations are split as follows [2, 2, 4, 5, 1, 6]. The 21 writes are split as follows [0, 2, 4, 6, 1, 8]. [2023-12-16 15:43:11,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:43:11" (1/1) ... [2023-12-16 15:43:11,622 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:43:11" (1/1) ... [2023-12-16 15:43:11,656 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:43:11" (1/1) ... [2023-12-16 15:43:11,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:43:11" (1/1) ... [2023-12-16 15:43:11,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:43:11" (1/1) ... [2023-12-16 15:43:11,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:43:11" (1/1) ... [2023-12-16 15:43:11,700 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 15:43:11,701 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 15:43:11,701 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 15:43:11,701 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 15:43:11,702 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:43:11" (1/1) ... [2023-12-16 15:43:11,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:43:11,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 15:43:11,748 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 15:43:11,780 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 15:43:11,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 15:43:11,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-16 15:43:11,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-16 15:43:11,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-16 15:43:11,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-16 15:43:11,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-16 15:43:11,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-12-16 15:43:11,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2023-12-16 15:43:11,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2023-12-16 15:43:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2023-12-16 15:43:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2023-12-16 15:43:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2023-12-16 15:43:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2023-12-16 15:43:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 15:43:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 15:43:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 15:43:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 15:43:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 15:43:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-16 15:43:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-16 15:43:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-16 15:43:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-12-16 15:43:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-12-16 15:43:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-12-16 15:43:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2023-12-16 15:43:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-12-16 15:43:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-12-16 15:43:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-12-16 15:43:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-12-16 15:43:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2023-12-16 15:43:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2023-12-16 15:43:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-16 15:43:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-16 15:43:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-16 15:43:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-16 15:43:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-12-16 15:43:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-12-16 15:43:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2023-12-16 15:43:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2023-12-16 15:43:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2023-12-16 15:43:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2023-12-16 15:43:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2023-12-16 15:43:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2023-12-16 15:43:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-12-16 15:43:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-12-16 15:43:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-12-16 15:43:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-12-16 15:43:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2023-12-16 15:43:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2023-12-16 15:43:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2023-12-16 15:43:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2023-12-16 15:43:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2023-12-16 15:43:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2023-12-16 15:43:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2023-12-16 15:43:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2023-12-16 15:43:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 15:43:11,805 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 15:43:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 15:43:11,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 15:43:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-16 15:43:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-16 15:43:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-16 15:43:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-16 15:43:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-16 15:43:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-12-16 15:43:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2023-12-16 15:43:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2023-12-16 15:43:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2023-12-16 15:43:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2023-12-16 15:43:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2023-12-16 15:43:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2023-12-16 15:43:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-16 15:43:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-16 15:43:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-16 15:43:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-16 15:43:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-12-16 15:43:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-12-16 15:43:11,980 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 15:43:11,984 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 15:43:12,885 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 15:43:12,915 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 15:43:12,916 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 15:43:12,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:43:12 BoogieIcfgContainer [2023-12-16 15:43:12,916 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 15:43:12,917 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 15:43:12,917 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 15:43:12,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 15:43:12,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:43:11" (1/3) ... [2023-12-16 15:43:12,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc26302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:43:12, skipping insertion in model container [2023-12-16 15:43:12,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:43:11" (2/3) ... [2023-12-16 15:43:12,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc26302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:43:12, skipping insertion in model container [2023-12-16 15:43:12,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:43:12" (3/3) ... [2023-12-16 15:43:12,921 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-86.i [2023-12-16 15:43:12,932 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 15:43:12,932 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 15:43:12,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 15:43:12,974 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;@237d60a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 15:43:12,975 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 15:43:12,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 120 states have (on average 1.4583333333333333) internal successors, (175), 121 states have internal predecessors, (175), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 15:43:13,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-16 15:43:13,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:43:13,002 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:13,003 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:43:13,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:43:13,008 INFO L85 PathProgramCache]: Analyzing trace with hash 2131795121, now seen corresponding path program 1 times [2023-12-16 15:43:13,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:43:13,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144086186] [2023-12-16 15:43:13,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:43:13,024 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 15:43:13,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:43:13,047 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 15:43:13,063 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 15:43:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:43:13,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 15:43:13,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:43:13,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 524 proven. 0 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2023-12-16 15:43:13,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:43:13,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:43:13,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144086186] [2023-12-16 15:43:13,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144086186] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:43:13,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:43:13,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 15:43:13,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950503855] [2023-12-16 15:43:13,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:43:13,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 15:43:13,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:43:13,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 15:43:13,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 15:43:13,725 INFO L87 Difference]: Start difference. First operand has 148 states, 120 states have (on average 1.4583333333333333) internal successors, (175), 121 states have internal predecessors, (175), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 15:43:13,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:43:13,789 INFO L93 Difference]: Finished difference Result 293 states and 473 transitions. [2023-12-16 15:43:13,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 15:43:13,792 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 179 [2023-12-16 15:43:13,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:43:13,801 INFO L225 Difference]: With dead ends: 293 [2023-12-16 15:43:13,801 INFO L226 Difference]: Without dead ends: 146 [2023-12-16 15:43:13,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 178 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 15:43:13,808 INFO L413 NwaCegarLoop]: 216 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, 216 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 15:43:13,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 15:43:13,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-12-16 15:43:13,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2023-12-16 15:43:13,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 119 states have (on average 1.4285714285714286) internal successors, (170), 119 states have internal predecessors, (170), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 15:43:13,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 220 transitions. [2023-12-16 15:43:13,864 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 220 transitions. Word has length 179 [2023-12-16 15:43:13,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:43:13,865 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 220 transitions. [2023-12-16 15:43:13,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 15:43:13,865 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 220 transitions. [2023-12-16 15:43:13,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-16 15:43:13,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:43:13,869 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:13,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 15:43:14,083 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 15:43:14,084 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:43:14,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:43:14,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1281308179, now seen corresponding path program 1 times [2023-12-16 15:43:14,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:43:14,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983613202] [2023-12-16 15:43:14,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:43:14,092 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 15:43:14,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:43:14,093 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 15:43:14,094 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 15:43:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:43:14,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 15:43:14,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:43:14,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 456 proven. 0 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2023-12-16 15:43:14,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:43:14,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:43:14,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983613202] [2023-12-16 15:43:14,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983613202] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:43:14,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:43:14,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 15:43:14,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612593231] [2023-12-16 15:43:14,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:43:14,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 15:43:14,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:43:14,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 15:43:14,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 15:43:14,505 INFO L87 Difference]: Start difference. First operand 146 states and 220 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 15:43:14,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:43:14,592 INFO L93 Difference]: Finished difference Result 297 states and 448 transitions. [2023-12-16 15:43:14,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 15:43:14,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 179 [2023-12-16 15:43:14,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:43:14,595 INFO L225 Difference]: With dead ends: 297 [2023-12-16 15:43:14,595 INFO L226 Difference]: Without dead ends: 152 [2023-12-16 15:43:14,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 176 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 15:43:14,597 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 10 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 15:43:14,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 640 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 15:43:14,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-16 15:43:14,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 148. [2023-12-16 15:43:14,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 121 states have (on average 1.421487603305785) internal successors, (172), 121 states have internal predecessors, (172), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 15:43:14,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 222 transitions. [2023-12-16 15:43:14,606 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 222 transitions. Word has length 179 [2023-12-16 15:43:14,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:43:14,607 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 222 transitions. [2023-12-16 15:43:14,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 15:43:14,607 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 222 transitions. [2023-12-16 15:43:14,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-16 15:43:14,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:43:14,616 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:14,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 15:43:14,827 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 15:43:14,829 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:43:14,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:43:14,830 INFO L85 PathProgramCache]: Analyzing trace with hash -117645423, now seen corresponding path program 1 times [2023-12-16 15:43:14,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:43:14,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590294379] [2023-12-16 15:43:14,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:43:14,831 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 15:43:14,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:43:14,833 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 15:43:14,865 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 15:43:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:43:15,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 15:43:15,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:43:15,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 21 proven. 327 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2023-12-16 15:43:15,891 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:43:16,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-16 15:43:16,019 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:43:16,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590294379] [2023-12-16 15:43:16,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590294379] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 15:43:16,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 15:43:16,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2023-12-16 15:43:16,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069094597] [2023-12-16 15:43:16,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:43:16,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:43:16,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:43:16,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:43:16,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-16 15:43:16,021 INFO L87 Difference]: Start difference. First operand 148 states and 222 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 15:43:16,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:43:16,129 INFO L93 Difference]: Finished difference Result 368 states and 555 transitions. [2023-12-16 15:43:16,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 15:43:16,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 179 [2023-12-16 15:43:16,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:43:16,132 INFO L225 Difference]: With dead ends: 368 [2023-12-16 15:43:16,132 INFO L226 Difference]: Without dead ends: 221 [2023-12-16 15:43:16,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-12-16 15:43:16,133 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 216 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:43:16,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 621 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 15:43:16,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-12-16 15:43:16,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 152. [2023-12-16 15:43:16,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 125 states have (on average 1.416) internal successors, (177), 125 states have internal predecessors, (177), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 15:43:16,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 227 transitions. [2023-12-16 15:43:16,150 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 227 transitions. Word has length 179 [2023-12-16 15:43:16,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:43:16,151 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 227 transitions. [2023-12-16 15:43:16,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 15:43:16,151 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 227 transitions. [2023-12-16 15:43:16,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-16 15:43:16,153 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:43:16,153 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:16,165 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 15:43:16,354 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 15:43:16,354 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:43:16,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:43:16,355 INFO L85 PathProgramCache]: Analyzing trace with hash 893471827, now seen corresponding path program 1 times [2023-12-16 15:43:16,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:43:16,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051171177] [2023-12-16 15:43:16,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:43:16,356 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 15:43:16,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:43:16,357 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 15:43:16,372 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 15:43:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:43:16,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 15:43:16,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:43:16,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-16 15:43:16,750 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:43:16,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:43:16,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051171177] [2023-12-16 15:43:16,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051171177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:43:16,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:43:16,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 15:43:16,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606531530] [2023-12-16 15:43:16,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:43:16,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:43:16,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:43:16,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:43:16,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:43:16,752 INFO L87 Difference]: Start difference. First operand 152 states and 227 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 15:43:16,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:43:16,827 INFO L93 Difference]: Finished difference Result 312 states and 465 transitions. [2023-12-16 15:43:16,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 15:43:16,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 179 [2023-12-16 15:43:16,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:43:16,830 INFO L225 Difference]: With dead ends: 312 [2023-12-16 15:43:16,830 INFO L226 Difference]: Without dead ends: 161 [2023-12-16 15:43:16,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 15:43:16,831 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 10 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:43:16,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 840 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 15:43:16,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-12-16 15:43:16,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 156. [2023-12-16 15:43:16,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 129 states have (on average 1.4031007751937985) internal successors, (181), 129 states have internal predecessors, (181), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 15:43:16,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 231 transitions. [2023-12-16 15:43:16,838 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 231 transitions. Word has length 179 [2023-12-16 15:43:16,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:43:16,838 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 231 transitions. [2023-12-16 15:43:16,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 15:43:16,838 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 231 transitions. [2023-12-16 15:43:16,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-16 15:43:16,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:43:16,840 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:16,868 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 15:43:17,049 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 15:43:17,050 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:43:17,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:43:17,050 INFO L85 PathProgramCache]: Analyzing trace with hash 893531409, now seen corresponding path program 1 times [2023-12-16 15:43:17,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:43:17,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046301061] [2023-12-16 15:43:17,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:43:17,052 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 15:43:17,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:43:17,053 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 15:43:17,055 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 15:43:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:43:17,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 15:43:17,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:43:17,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 41 [2023-12-16 15:43:17,553 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 864 trivial. 0 not checked. [2023-12-16 15:43:17,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:43:17,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:43:17,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046301061] [2023-12-16 15:43:17,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046301061] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:43:17,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:43:17,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 15:43:17,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461415574] [2023-12-16 15:43:17,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:43:17,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 15:43:17,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:43:17,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 15:43:17,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:43:17,555 INFO L87 Difference]: Start difference. First operand 156 states and 231 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 15:43:18,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:43:18,484 INFO L93 Difference]: Finished difference Result 317 states and 470 transitions. [2023-12-16 15:43:18,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 15:43:18,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 179 [2023-12-16 15:43:18,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:43:18,486 INFO L225 Difference]: With dead ends: 317 [2023-12-16 15:43:18,486 INFO L226 Difference]: Without dead ends: 162 [2023-12-16 15:43:18,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-16 15:43:18,487 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 215 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 15:43:18,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 750 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 15:43:18,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-12-16 15:43:18,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2023-12-16 15:43:18,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 129 states have (on average 1.3953488372093024) internal successors, (180), 129 states have internal predecessors, (180), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 15:43:18,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 230 transitions. [2023-12-16 15:43:18,492 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 230 transitions. Word has length 179 [2023-12-16 15:43:18,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:43:18,493 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 230 transitions. [2023-12-16 15:43:18,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 15:43:18,493 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 230 transitions. [2023-12-16 15:43:18,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-16 15:43:18,494 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:43:18,494 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:18,509 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 15:43:18,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:43:18,704 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:43:18,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:43:18,705 INFO L85 PathProgramCache]: Analyzing trace with hash -200548843, now seen corresponding path program 1 times [2023-12-16 15:43:18,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:43:18,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587144550] [2023-12-16 15:43:18,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:43:18,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:43:18,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:43:18,706 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:43:18,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 15:43:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:43:19,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 15:43:19,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:43:19,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 412 proven. 0 refuted. 0 times theorem prover too weak. 788 trivial. 0 not checked. [2023-12-16 15:43:19,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:43:19,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:43:19,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587144550] [2023-12-16 15:43:19,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587144550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:43:19,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:43:19,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 15:43:19,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714733244] [2023-12-16 15:43:19,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:43:19,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 15:43:19,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:43:19,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 15:43:19,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:43:19,068 INFO L87 Difference]: Start difference. First operand 156 states and 230 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) [2023-12-16 15:43:19,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:43:19,285 INFO L93 Difference]: Finished difference Result 315 states and 464 transitions. [2023-12-16 15:43:19,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 15:43:19,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) Word has length 181 [2023-12-16 15:43:19,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:43:19,286 INFO L225 Difference]: With dead ends: 315 [2023-12-16 15:43:19,286 INFO L226 Difference]: Without dead ends: 158 [2023-12-16 15:43:19,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 15:43:19,287 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 7 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 15:43:19,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 874 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 15:43:19,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-12-16 15:43:19,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 156. [2023-12-16 15:43:19,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 129 states have (on average 1.3875968992248062) internal successors, (179), 129 states have internal predecessors, (179), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 15:43:19,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 229 transitions. [2023-12-16 15:43:19,294 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 229 transitions. Word has length 181 [2023-12-16 15:43:19,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:43:19,294 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 229 transitions. [2023-12-16 15:43:19,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) [2023-12-16 15:43:19,294 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 229 transitions. [2023-12-16 15:43:19,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-16 15:43:19,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:43:19,295 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:19,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 15:43:19,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:43:19,496 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:43:19,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:43:19,497 INFO L85 PathProgramCache]: Analyzing trace with hash -2094882729, now seen corresponding path program 1 times [2023-12-16 15:43:19,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:43:19,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888034426] [2023-12-16 15:43:19,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:43:19,497 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 15:43:19,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:43:19,498 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 15:43:19,500 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 15:43:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:43:19,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 15:43:19,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:43:20,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2023-12-16 15:43:20,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2023-12-16 15:43:20,057 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:43:20,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:43:20,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888034426] [2023-12-16 15:43:20,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888034426] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:43:20,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:43:20,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 15:43:20,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994878143] [2023-12-16 15:43:20,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:43:20,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 15:43:20,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:43:20,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 15:43:20,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:43:20,059 INFO L87 Difference]: Start difference. First operand 156 states and 229 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 15:43:20,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:43:20,928 INFO L93 Difference]: Finished difference Result 317 states and 466 transitions. [2023-12-16 15:43:20,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 15:43:20,929 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 181 [2023-12-16 15:43:20,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:43:20,929 INFO L225 Difference]: With dead ends: 317 [2023-12-16 15:43:20,930 INFO L226 Difference]: Without dead ends: 162 [2023-12-16 15:43:20,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-16 15:43:20,930 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 205 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 15:43:20,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 741 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 15:43:20,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-12-16 15:43:20,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2023-12-16 15:43:20,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 129 states have (on average 1.37984496124031) internal successors, (178), 129 states have internal predecessors, (178), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 15:43:20,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 228 transitions. [2023-12-16 15:43:20,936 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 228 transitions. Word has length 181 [2023-12-16 15:43:20,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:43:20,936 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 228 transitions. [2023-12-16 15:43:20,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 15:43:20,936 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 228 transitions. [2023-12-16 15:43:20,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-16 15:43:20,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:43:20,938 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:20,956 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 15:43:21,138 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 15:43:21,138 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:43:21,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:43:21,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1257693231, now seen corresponding path program 1 times [2023-12-16 15:43:21,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:43:21,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072359629] [2023-12-16 15:43:21,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:43:21,139 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 15:43:21,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:43:21,141 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:43:21,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 15:43:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:43:21,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 15:43:21,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:43:21,626 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 95 treesize of output 41 [2023-12-16 15:43:21,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 456 proven. 0 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2023-12-16 15:43:21,651 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:43:21,651 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:43:21,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072359629] [2023-12-16 15:43:21,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072359629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:43:21,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:43:21,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 15:43:21,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135788631] [2023-12-16 15:43:21,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:43:21,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 15:43:21,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:43:21,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 15:43:21,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:43:21,653 INFO L87 Difference]: Start difference. First operand 156 states and 228 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 15:43:22,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:43:22,526 INFO L93 Difference]: Finished difference Result 315 states and 461 transitions. [2023-12-16 15:43:22,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 15:43:22,537 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 183 [2023-12-16 15:43:22,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:43:22,538 INFO L225 Difference]: With dead ends: 315 [2023-12-16 15:43:22,538 INFO L226 Difference]: Without dead ends: 160 [2023-12-16 15:43:22,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-16 15:43:22,538 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 203 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 15:43:22,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 733 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 15:43:22,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-12-16 15:43:22,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2023-12-16 15:43:22,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 127 states have (on average 1.3779527559055118) internal successors, (175), 127 states have internal predecessors, (175), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 15:43:22,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 225 transitions. [2023-12-16 15:43:22,546 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 225 transitions. Word has length 183 [2023-12-16 15:43:22,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:43:22,547 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 225 transitions. [2023-12-16 15:43:22,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 15:43:22,547 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 225 transitions. [2023-12-16 15:43:22,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-16 15:43:22,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:43:22,549 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:22,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 15:43:22,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:43:22,760 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:43:22,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:43:22,760 INFO L85 PathProgramCache]: Analyzing trace with hash 583318297, now seen corresponding path program 1 times [2023-12-16 15:43:22,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:43:22,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [142924799] [2023-12-16 15:43:22,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:43:22,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:43:22,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:43:22,763 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:43:22,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 15:43:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:43:23,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 15:43:23,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:43:23,302 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 94 treesize of output 40 [2023-12-16 15:43:23,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 504 proven. 24 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2023-12-16 15:43:23,339 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:43:23,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 22 [2023-12-16 15:43:23,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 18 proven. 54 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-12-16 15:43:23,504 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:43:23,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [142924799] [2023-12-16 15:43:23,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [142924799] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 15:43:23,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 15:43:23,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2023-12-16 15:43:23,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774643268] [2023-12-16 15:43:23,504 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 15:43:23,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 15:43:23,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:43:23,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 15:43:23,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-16 15:43:23,506 INFO L87 Difference]: Start difference. First operand 154 states and 225 transitions. Second operand has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 12 states have internal predecessors, (96), 4 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (49), 3 states have call predecessors, (49), 4 states have call successors, (49) [2023-12-16 15:43:24,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:43:24,602 INFO L93 Difference]: Finished difference Result 320 states and 464 transitions. [2023-12-16 15:43:24,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 15:43:24,603 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 12 states have internal predecessors, (96), 4 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (49), 3 states have call predecessors, (49), 4 states have call successors, (49) Word has length 185 [2023-12-16 15:43:24,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:43:24,603 INFO L225 Difference]: With dead ends: 320 [2023-12-16 15:43:24,603 INFO L226 Difference]: Without dead ends: 156 [2023-12-16 15:43:24,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2023-12-16 15:43:24,604 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 192 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 15:43:24,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 950 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 15:43:24,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-12-16 15:43:24,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 154. [2023-12-16 15:43:24,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 127 states have (on average 1.3622047244094488) internal successors, (173), 127 states have internal predecessors, (173), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 15:43:24,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 223 transitions. [2023-12-16 15:43:24,612 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 223 transitions. Word has length 185 [2023-12-16 15:43:24,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:43:24,612 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 223 transitions. [2023-12-16 15:43:24,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 12 states have internal predecessors, (96), 4 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (49), 3 states have call predecessors, (49), 4 states have call successors, (49) [2023-12-16 15:43:24,612 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 223 transitions. [2023-12-16 15:43:24,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-16 15:43:24,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:43:24,613 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:24,624 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 (10)] Ended with exit code 0 [2023-12-16 15:43:24,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:43:24,814 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:43:24,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:43:24,814 INFO L85 PathProgramCache]: Analyzing trace with hash 513670423, now seen corresponding path program 1 times [2023-12-16 15:43:24,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:43:24,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003650686] [2023-12-16 15:43:24,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:43:24,815 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 15:43:24,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:43:24,816 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:43:24,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 15:43:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:43:25,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-16 15:43:25,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:43:26,294 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 15:43:26,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2023-12-16 15:43:26,914 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 38 treesize of output 36 [2023-12-16 15:43:28,306 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 51 treesize of output 48 [2023-12-16 15:43:28,681 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:43:28,681 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 96 treesize of output 52 [2023-12-16 15:43:28,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 157 proven. 630 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2023-12-16 15:43:28,722 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:43:28,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-16 15:43:28,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:43:28,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003650686] [2023-12-16 15:43:28,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003650686] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 15:43:28,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 15:43:28,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2023-12-16 15:43:28,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886753000] [2023-12-16 15:43:28,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:43:28,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 15:43:28,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:43:28,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 15:43:28,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2023-12-16 15:43:28,932 INFO L87 Difference]: Start difference. First operand 154 states and 223 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 15:43:29,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:43:29,603 INFO L93 Difference]: Finished difference Result 512 states and 741 transitions. [2023-12-16 15:43:29,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 15:43:29,603 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 185 [2023-12-16 15:43:29,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:43:29,605 INFO L225 Difference]: With dead ends: 512 [2023-12-16 15:43:29,605 INFO L226 Difference]: Without dead ends: 359 [2023-12-16 15:43:29,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2023-12-16 15:43:29,606 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 532 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 15:43:29,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1163 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 15:43:29,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-16 15:43:29,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 259. [2023-12-16 15:43:29,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 224 states have (on average 1.3883928571428572) internal successors, (311), 225 states have internal predecessors, (311), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-16 15:43:29,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 375 transitions. [2023-12-16 15:43:29,616 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 375 transitions. Word has length 185 [2023-12-16 15:43:29,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:43:29,632 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 375 transitions. [2023-12-16 15:43:29,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 15:43:29,632 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 375 transitions. [2023-12-16 15:43:29,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-16 15:43:29,634 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:43:29,634 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:29,654 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 (11)] Ended with exit code 0 [2023-12-16 15:43:29,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:43:29,835 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:43:29,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:43:29,835 INFO L85 PathProgramCache]: Analyzing trace with hash 91267484, now seen corresponding path program 1 times [2023-12-16 15:43:29,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:43:29,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670449801] [2023-12-16 15:43:29,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:43:29,836 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 15:43:29,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:43:29,837 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:43:29,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process Received shutdown request... [2023-12-16 15:44:27,501 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 (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 15:44:27,526 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 15:44:28,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-16 15:44:28,701 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forcibly destroying the process [2023-12-16 15:44:28,718 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 (12)] Forceful destruction successful, exit code 137 [2023-12-16 15:44:28,719 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-16 15:44:28,721 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 15:44:28,721 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 188 with TraceHistMax 25,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [1670449801] and IpTcStrategyModuleCvc4 [120237203]. [2023-12-16 15:44:28,731 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:44:28,733 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 15:44:28,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:44:28 BoogieIcfgContainer [2023-12-16 15:44:28,736 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 15:44:28,737 INFO L158 Benchmark]: Toolchain (without parser) took 77534.93ms. Allocated memory is still 238.0MB. Free memory was 198.0MB in the beginning and 157.5MB in the end (delta: 40.5MB). Peak memory consumption was 41.5MB. Max. memory is 8.0GB. [2023-12-16 15:44:28,737 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 163.6MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 15:44:28,737 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.54ms. Allocated memory is still 238.0MB. Free memory was 198.0MB in the beginning and 178.6MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-16 15:44:28,738 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.62ms. Allocated memory is still 238.0MB. Free memory was 178.6MB in the beginning and 173.8MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 15:44:28,738 INFO L158 Benchmark]: Boogie Preprocessor took 129.47ms. Allocated memory is still 238.0MB. Free memory was 173.8MB in the beginning and 167.0MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 15:44:28,738 INFO L158 Benchmark]: RCFGBuilder took 1215.15ms. Allocated memory is still 238.0MB. Free memory was 167.0MB in the beginning and 108.3MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. [2023-12-16 15:44:28,738 INFO L158 Benchmark]: TraceAbstraction took 75818.98ms. Allocated memory is still 238.0MB. Free memory was 107.8MB in the beginning and 157.5MB in the end (delta: -49.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 15:44:28,741 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 163.6MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 303.54ms. Allocated memory is still 238.0MB. Free memory was 198.0MB in the beginning and 178.6MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.62ms. Allocated memory is still 238.0MB. Free memory was 178.6MB in the beginning and 173.8MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 129.47ms. Allocated memory is still 238.0MB. Free memory was 173.8MB in the beginning and 167.0MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1215.15ms. Allocated memory is still 238.0MB. Free memory was 167.0MB in the beginning and 108.3MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. * TraceAbstraction took 75818.98ms. Allocated memory is still 238.0MB. Free memory was 107.8MB in the beginning and 157.5MB in the end (delta: -49.7MB). There was no memory consumed. 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 188 with TraceHistMax 25,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [1670449801] and IpTcStrategyModuleCvc4 [120237203]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 148 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 75.8s, OverallIterations: 11, TraceHistogramMax: 25, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1610 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1590 mSDsluCounter, 7528 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5468 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1154 IncrementalHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 2060 mSDtfsCounter, 1154 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2379 GetRequests, 2289 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=259occurred in iteration=10, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 200 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 1810 NumberOfCodeBlocks, 1810 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2346 ConstructedInterpolants, 105 QuantifiedInterpolants, 10335 SizeOfPredicates, 59 NumberOfNonLiveVariables, 3998 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 14565/15600 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