/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-pthread/cs_lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 18:37:17,568 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 18:37:17,633 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 18:37:17,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 18:37:17,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 18:37:17,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 18:37:17,664 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 18:37:17,665 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 18:37:17,665 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 18:37:17,665 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 18:37:17,665 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 18:37:17,666 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 18:37:17,666 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 18:37:17,666 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 18:37:17,667 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 18:37:17,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 18:37:17,667 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 18:37:17,667 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 18:37:17,668 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 18:37:17,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 18:37:17,668 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 18:37:17,671 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 18:37:17,671 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 18:37:17,671 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 18:37:17,674 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 18:37:17,674 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 18:37:17,674 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 18:37:17,675 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 18:37:17,675 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 18:37:17,675 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 18:37:17,676 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 18:37:17,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 18:37:17,676 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 18:37:17,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 18:37:17,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:37:17,676 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 18:37:17,676 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 18:37:17,677 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 18:37:17,677 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 18:37:17,677 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 18:37:17,677 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 18:37:17,677 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 18:37:17,677 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 18:37:17,677 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 18:37:17,678 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 18:37:17,678 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 18:37:17,678 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 18:37:17,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 18:37:17,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 18:37:17,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 18:37:17,898 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 18:37:17,899 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 18:37:17,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_lamport.i [2023-12-16 18:37:18,970 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 18:37:19,222 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 18:37:19,223 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_lamport.i [2023-12-16 18:37:19,235 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5654a9cc3/65ae9c744e614bdcbbc356a04f5bde44/FLAG164d3baca [2023-12-16 18:37:19,248 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5654a9cc3/65ae9c744e614bdcbbc356a04f5bde44 [2023-12-16 18:37:19,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 18:37:19,251 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 18:37:19,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 18:37:19,254 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 18:37:19,257 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 18:37:19,257 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:37:19" (1/1) ... [2023-12-16 18:37:19,258 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aa39e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:19, skipping insertion in model container [2023-12-16 18:37:19,258 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:37:19" (1/1) ... [2023-12-16 18:37:19,329 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 18:37:19,621 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_lamport.i[23604,23617] [2023-12-16 18:37:19,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:37:19,756 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 18:37:19,786 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_lamport.i[23604,23617] [2023-12-16 18:37:19,837 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:37:19,862 INFO L206 MainTranslator]: Completed translation [2023-12-16 18:37:19,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:19 WrapperNode [2023-12-16 18:37:19,863 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 18:37:19,864 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 18:37:19,864 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 18:37:19,864 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 18:37:19,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:19" (1/1) ... [2023-12-16 18:37:19,894 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:19" (1/1) ... [2023-12-16 18:37:19,934 INFO L138 Inliner]: procedures = 149, calls = 351, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 461 [2023-12-16 18:37:19,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 18:37:19,935 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 18:37:19,935 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 18:37:19,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 18:37:19,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:19" (1/1) ... [2023-12-16 18:37:19,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:19" (1/1) ... [2023-12-16 18:37:19,948 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:19" (1/1) ... [2023-12-16 18:37:19,969 INFO L175 MemorySlicer]: Split 160 memory accesses to 19 slices as follows [2, 5, 5, 8, 8, 29, 21, 0, 7, 7, 7, 6, 7, 13, 7, 5, 5, 13, 5]. 18 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 0, 0, 3, 3, 9, 9, 0, 3, 3, 3, 2, 3, 0, 3, 0, 0, 0, 0]. The 40 writes are split as follows [0, 1, 1, 2, 2, 11, 6, 0, 2, 2, 2, 2, 2, 1, 2, 1, 1, 1, 1]. [2023-12-16 18:37:19,970 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:19" (1/1) ... [2023-12-16 18:37:19,970 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:19" (1/1) ... [2023-12-16 18:37:19,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:19" (1/1) ... [2023-12-16 18:37:20,005 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:19" (1/1) ... [2023-12-16 18:37:20,011 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:19" (1/1) ... [2023-12-16 18:37:20,014 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:19" (1/1) ... [2023-12-16 18:37:20,024 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 18:37:20,025 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 18:37:20,025 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 18:37:20,025 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 18:37:20,026 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:19" (1/1) ... [2023-12-16 18:37:20,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:37:20,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 18:37:20,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 18:37:20,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 18:37:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-16 18:37:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-16 18:37:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-16 18:37:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-16 18:37:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-16 18:37:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-12-16 18:37:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2023-12-16 18:37:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2023-12-16 18:37:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2023-12-16 18:37:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2023-12-16 18:37:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#10 [2023-12-16 18:37:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#11 [2023-12-16 18:37:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#12 [2023-12-16 18:37:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#13 [2023-12-16 18:37:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#14 [2023-12-16 18:37:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#15 [2023-12-16 18:37:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#16 [2023-12-16 18:37:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#17 [2023-12-16 18:37:20,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#18 [2023-12-16 18:37:20,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-16 18:37:20,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-16 18:37:20,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-16 18:37:20,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-16 18:37:20,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-12-16 18:37:20,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-12-16 18:37:20,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-12-16 18:37:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-12-16 18:37:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2023-12-16 18:37:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2023-12-16 18:37:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2023-12-16 18:37:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2023-12-16 18:37:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2023-12-16 18:37:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2023-12-16 18:37:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2023-12-16 18:37:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2023-12-16 18:37:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2023-12-16 18:37:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#17 [2023-12-16 18:37:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#18 [2023-12-16 18:37:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 18:37:20,188 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 18:37:20,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 18:37:20,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-16 18:37:20,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-16 18:37:20,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-16 18:37:20,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-16 18:37:20,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-12-16 18:37:20,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-12-16 18:37:20,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-12-16 18:37:20,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-12-16 18:37:20,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-12-16 18:37:20,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-12-16 18:37:20,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-12-16 18:37:20,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-12-16 18:37:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-12-16 18:37:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-12-16 18:37:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-12-16 18:37:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-12-16 18:37:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-12-16 18:37:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-12-16 18:37:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-12-16 18:37:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-12-16 18:37:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-12-16 18:37:20,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-12-16 18:37:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-16 18:37:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-16 18:37:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-16 18:37:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-12-16 18:37:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-12-16 18:37:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-12-16 18:37:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-12-16 18:37:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-12-16 18:37:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-12-16 18:37:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-12-16 18:37:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-12-16 18:37:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-12-16 18:37:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-12-16 18:37:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-12-16 18:37:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-12-16 18:37:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-12-16 18:37:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-12-16 18:37:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-12-16 18:37:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-12-16 18:37:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-12-16 18:37:20,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-12-16 18:37:20,194 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-16 18:37:20,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-16 18:37:20,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-16 18:37:20,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-16 18:37:20,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-16 18:37:20,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-16 18:37:20,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-16 18:37:20,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-12-16 18:37:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2023-12-16 18:37:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2023-12-16 18:37:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2023-12-16 18:37:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2023-12-16 18:37:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#10 [2023-12-16 18:37:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#11 [2023-12-16 18:37:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#12 [2023-12-16 18:37:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#13 [2023-12-16 18:37:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#14 [2023-12-16 18:37:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#15 [2023-12-16 18:37:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#16 [2023-12-16 18:37:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#17 [2023-12-16 18:37:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#18 [2023-12-16 18:37:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-16 18:37:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-16 18:37:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-16 18:37:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-16 18:37:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-16 18:37:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-12-16 18:37:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-12-16 18:37:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-12-16 18:37:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-12-16 18:37:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2023-12-16 18:37:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2023-12-16 18:37:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2023-12-16 18:37:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2023-12-16 18:37:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2023-12-16 18:37:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2023-12-16 18:37:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2023-12-16 18:37:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2023-12-16 18:37:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2023-12-16 18:37:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#17 [2023-12-16 18:37:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#18 [2023-12-16 18:37:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-12-16 18:37:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-12-16 18:37:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-12-16 18:37:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-12-16 18:37:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-12-16 18:37:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-12-16 18:37:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-12-16 18:37:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-12-16 18:37:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-12-16 18:37:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-12-16 18:37:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-12-16 18:37:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-12-16 18:37:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-12-16 18:37:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-12-16 18:37:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-12-16 18:37:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-12-16 18:37:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-12-16 18:37:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-12-16 18:37:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2023-12-16 18:37:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 18:37:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 18:37:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 18:37:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 18:37:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 18:37:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-16 18:37:20,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-16 18:37:20,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-16 18:37:20,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-16 18:37:20,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-16 18:37:20,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-16 18:37:20,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-16 18:37:20,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-16 18:37:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-16 18:37:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-16 18:37:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-16 18:37:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-16 18:37:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-16 18:37:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-16 18:37:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-16 18:37:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-16 18:37:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-12-16 18:37:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-12-16 18:37:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-12-16 18:37:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2023-12-16 18:37:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2023-12-16 18:37:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2023-12-16 18:37:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2023-12-16 18:37:20,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2023-12-16 18:37:20,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2023-12-16 18:37:20,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2023-12-16 18:37:20,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#12 [2023-12-16 18:37:20,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#13 [2023-12-16 18:37:20,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#14 [2023-12-16 18:37:20,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#15 [2023-12-16 18:37:20,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#16 [2023-12-16 18:37:20,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#17 [2023-12-16 18:37:20,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#18 [2023-12-16 18:37:20,209 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-12-16 18:37:20,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-12-16 18:37:20,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 18:37:20,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 18:37:20,462 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 18:37:20,463 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 18:37:26,581 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 18:37:26,635 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 18:37:26,636 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 18:37:26,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:37:26 BoogieIcfgContainer [2023-12-16 18:37:26,636 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 18:37:26,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 18:37:26,638 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 18:37:26,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 18:37:26,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:37:19" (1/3) ... [2023-12-16 18:37:26,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffd69a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:37:26, skipping insertion in model container [2023-12-16 18:37:26,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:19" (2/3) ... [2023-12-16 18:37:26,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffd69a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:37:26, skipping insertion in model container [2023-12-16 18:37:26,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:37:26" (3/3) ... [2023-12-16 18:37:26,644 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_lamport.i [2023-12-16 18:37:26,657 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 18:37:26,657 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 18:37:26,701 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 18:37:26,707 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;@3d6006a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 18:37:26,707 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 18:37:26,711 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 68 states have (on average 1.338235294117647) internal successors, (91), 69 states have internal predecessors, (91), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 18:37:26,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 18:37:26,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:26,733 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:26,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:26,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:26,740 INFO L85 PathProgramCache]: Analyzing trace with hash -418329354, now seen corresponding path program 1 times [2023-12-16 18:37:26,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:26,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784802300] [2023-12-16 18:37:26,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:26,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:26,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:26,755 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:26,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 18:37:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:27,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 18:37:27,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:27,386 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2023-12-16 18:37:27,386 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:37:27,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:27,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784802300] [2023-12-16 18:37:27,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784802300] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:37:27,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:37:27,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 18:37:27,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443761267] [2023-12-16 18:37:27,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:37:27,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 18:37:27,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:27,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 18:37:27,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 18:37:27,429 INFO L87 Difference]: Start difference. First operand has 111 states, 68 states have (on average 1.338235294117647) internal successors, (91), 69 states have internal predecessors, (91), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-16 18:37:27,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:27,572 INFO L93 Difference]: Finished difference Result 221 states and 359 transitions. [2023-12-16 18:37:27,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 18:37:27,574 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 143 [2023-12-16 18:37:27,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:27,581 INFO L225 Difference]: With dead ends: 221 [2023-12-16 18:37:27,581 INFO L226 Difference]: Without dead ends: 109 [2023-12-16 18:37:27,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 142 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 18:37:27,587 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:27,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:37:27,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-12-16 18:37:27,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-12-16 18:37:27,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 67 states have (on average 1.2686567164179106) internal successors, (85), 67 states have internal predecessors, (85), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 18:37:27,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2023-12-16 18:37:27,623 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 143 [2023-12-16 18:37:27,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:27,623 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2023-12-16 18:37:27,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-16 18:37:27,624 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2023-12-16 18:37:27,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 18:37:27,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:27,627 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:27,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 18:37:27,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:27,836 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:27,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:27,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1011026634, now seen corresponding path program 1 times [2023-12-16 18:37:27,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:27,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741118935] [2023-12-16 18:37:27,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:27,838 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:27,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:27,839 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:27,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 18:37:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:28,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:37:28,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:28,315 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-16 18:37:28,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:37:28,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:28,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741118935] [2023-12-16 18:37:28,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741118935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:37:28,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:37:28,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 18:37:28,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498321877] [2023-12-16 18:37:28,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:37:28,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:37:28,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:28,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:37:28,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:28,318 INFO L87 Difference]: Start difference. First operand 109 states and 157 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-16 18:37:30,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:30,384 INFO L93 Difference]: Finished difference Result 217 states and 313 transitions. [2023-12-16 18:37:30,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:37:30,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 143 [2023-12-16 18:37:30,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:30,391 INFO L225 Difference]: With dead ends: 217 [2023-12-16 18:37:30,391 INFO L226 Difference]: Without dead ends: 112 [2023-12-16 18:37:30,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:30,393 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 3 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:30,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 301 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 18:37:30,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-16 18:37:30,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 110. [2023-12-16 18:37:30,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 68 states have (on average 1.2647058823529411) internal successors, (86), 68 states have internal predecessors, (86), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 18:37:30,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2023-12-16 18:37:30,403 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 143 [2023-12-16 18:37:30,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:30,404 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2023-12-16 18:37:30,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-16 18:37:30,404 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2023-12-16 18:37:30,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-16 18:37:30,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:30,405 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:30,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 18:37:30,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:30,613 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:30,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:30,613 INFO L85 PathProgramCache]: Analyzing trace with hash 2117031662, now seen corresponding path program 1 times [2023-12-16 18:37:30,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:30,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936656221] [2023-12-16 18:37:30,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:30,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:30,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:30,633 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:30,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 18:37:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:31,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:37:31,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:31,203 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-16 18:37:31,203 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:37:31,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:31,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936656221] [2023-12-16 18:37:31,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936656221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:37:31,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:37:31,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:37:31,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392610329] [2023-12-16 18:37:31,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:37:31,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:37:31,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:31,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:37:31,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:31,212 INFO L87 Difference]: Start difference. First operand 110 states and 158 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-16 18:37:31,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:31,405 INFO L93 Difference]: Finished difference Result 219 states and 316 transitions. [2023-12-16 18:37:31,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:37:31,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 146 [2023-12-16 18:37:31,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:31,407 INFO L225 Difference]: With dead ends: 219 [2023-12-16 18:37:31,407 INFO L226 Difference]: Without dead ends: 111 [2023-12-16 18:37:31,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:31,409 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:31,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 304 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:37:31,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-12-16 18:37:31,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-12-16 18:37:31,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 69 states have internal predecessors, (87), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 18:37:31,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2023-12-16 18:37:31,417 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 146 [2023-12-16 18:37:31,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:31,417 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2023-12-16 18:37:31,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-16 18:37:31,418 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2023-12-16 18:37:31,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 18:37:31,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:31,419 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:31,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 18:37:31,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:31,621 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:31,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:31,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1200437592, now seen corresponding path program 1 times [2023-12-16 18:37:31,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:31,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362533173] [2023-12-16 18:37:31,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:31,623 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:31,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:31,624 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:31,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 18:37:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:32,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:37:32,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:32,223 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-16 18:37:32,223 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:37:32,446 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-16 18:37:32,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:32,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362533173] [2023-12-16 18:37:32,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362533173] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:37:32,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:37:32,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 18:37:32,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073641145] [2023-12-16 18:37:32,450 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:37:32,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:37:32,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:32,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:37:32,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:37:32,452 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-16 18:37:33,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:37:34,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:34,049 INFO L93 Difference]: Finished difference Result 222 states and 320 transitions. [2023-12-16 18:37:34,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:37:34,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 147 [2023-12-16 18:37:34,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:34,051 INFO L225 Difference]: With dead ends: 222 [2023-12-16 18:37:34,051 INFO L226 Difference]: Without dead ends: 113 [2023-12-16 18:37:34,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:37:34,053 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:34,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 606 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 18:37:34,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-16 18:37:34,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-12-16 18:37:34,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 71 states have internal predecessors, (89), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 18:37:34,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 161 transitions. [2023-12-16 18:37:34,060 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 161 transitions. Word has length 147 [2023-12-16 18:37:34,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:34,061 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 161 transitions. [2023-12-16 18:37:34,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-16 18:37:34,061 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 161 transitions. [2023-12-16 18:37:34,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-16 18:37:34,062 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:34,063 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:34,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 18:37:34,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:34,268 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:34,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:34,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1822780392, now seen corresponding path program 2 times [2023-12-16 18:37:34,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:34,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468706126] [2023-12-16 18:37:34,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 18:37:34,270 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:34,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:34,273 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:34,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 18:37:34,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 18:37:34,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 18:37:34,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:37:34,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:34,807 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2023-12-16 18:37:34,808 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:37:34,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:34,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468706126] [2023-12-16 18:37:34,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1468706126] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:37:34,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:37:34,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:37:34,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145626872] [2023-12-16 18:37:34,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:37:34,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:37:34,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:34,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:37:34,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:34,810 INFO L87 Difference]: Start difference. First operand 113 states and 161 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-16 18:37:35,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:35,026 INFO L93 Difference]: Finished difference Result 213 states and 304 transitions. [2023-12-16 18:37:35,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:37:35,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 149 [2023-12-16 18:37:35,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:35,028 INFO L225 Difference]: With dead ends: 213 [2023-12-16 18:37:35,028 INFO L226 Difference]: Without dead ends: 113 [2023-12-16 18:37:35,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:35,029 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:35,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 301 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:37:35,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-16 18:37:35,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-12-16 18:37:35,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 71 states have (on average 1.2394366197183098) internal successors, (88), 71 states have internal predecessors, (88), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 18:37:35,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 160 transitions. [2023-12-16 18:37:35,039 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 160 transitions. Word has length 149 [2023-12-16 18:37:35,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:35,039 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 160 transitions. [2023-12-16 18:37:35,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-16 18:37:35,039 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 160 transitions. [2023-12-16 18:37:35,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-16 18:37:35,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:35,041 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:35,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-16 18:37:35,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:35,242 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:35,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:35,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1529846233, now seen corresponding path program 1 times [2023-12-16 18:37:35,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:35,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680873501] [2023-12-16 18:37:35,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:35,243 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:35,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:35,245 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:35,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 18:37:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:35,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:37:35,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:36,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2023-12-16 18:37:36,074 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:37:36,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2023-12-16 18:37:36,353 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:36,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680873501] [2023-12-16 18:37:36,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680873501] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:37:36,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:37:36,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2023-12-16 18:37:36,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831703883] [2023-12-16 18:37:36,354 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:37:36,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:37:36,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:36,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:37:36,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:37:36,355 INFO L87 Difference]: Start difference. First operand 113 states and 160 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2023-12-16 18:37:39,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:37:40,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:37:42,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:37:44,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:37:45,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:45,116 INFO L93 Difference]: Finished difference Result 230 states and 326 transitions. [2023-12-16 18:37:45,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:37:45,129 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 165 [2023-12-16 18:37:45,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:45,130 INFO L225 Difference]: With dead ends: 230 [2023-12-16 18:37:45,130 INFO L226 Difference]: Without dead ends: 125 [2023-12-16 18:37:45,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:37:45,131 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 6 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:45,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 746 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2023-12-16 18:37:45,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-12-16 18:37:45,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2023-12-16 18:37:45,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 83 states have (on average 1.2289156626506024) internal successors, (102), 83 states have internal predecessors, (102), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 18:37:45,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 174 transitions. [2023-12-16 18:37:45,147 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 174 transitions. Word has length 165 [2023-12-16 18:37:45,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:45,147 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 174 transitions. [2023-12-16 18:37:45,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2023-12-16 18:37:45,148 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 174 transitions. [2023-12-16 18:37:45,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-16 18:37:45,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:45,149 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 9, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:45,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 18:37:45,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:45,362 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:45,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:45,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1560250691, now seen corresponding path program 2 times [2023-12-16 18:37:45,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:45,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114042228] [2023-12-16 18:37:45,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 18:37:45,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:45,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:45,405 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:45,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 18:37:45,942 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 18:37:45,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 18:37:45,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 18:37:45,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:48,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1087 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2023-12-16 18:37:48,915 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:37:48,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:48,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114042228] [2023-12-16 18:37:48,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [114042228] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:37:48,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:37:48,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:37:48,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331075312] [2023-12-16 18:37:48,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:37:48,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:37:48,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:48,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:37:48,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:37:48,916 INFO L87 Difference]: Start difference. First operand 125 states and 174 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-12-16 18:37:52,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:52,998 INFO L93 Difference]: Finished difference Result 238 states and 344 transitions. [2023-12-16 18:37:52,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 18:37:52,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 177 [2023-12-16 18:37:53,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:53,002 INFO L225 Difference]: With dead ends: 238 [2023-12-16 18:37:53,002 INFO L226 Difference]: Without dead ends: 188 [2023-12-16 18:37:53,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 18:37:53,003 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 107 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:53,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 393 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-16 18:37:53,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-12-16 18:37:53,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2023-12-16 18:37:53,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 123 states have (on average 1.2764227642276422) internal successors, (157), 124 states have internal predecessors, (157), 52 states have call successors, (52), 10 states have call predecessors, (52), 12 states have return successors, (61), 53 states have call predecessors, (61), 52 states have call successors, (61) [2023-12-16 18:37:53,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 270 transitions. [2023-12-16 18:37:53,031 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 270 transitions. Word has length 177 [2023-12-16 18:37:53,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:53,031 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 270 transitions. [2023-12-16 18:37:53,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-12-16 18:37:53,032 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 270 transitions. [2023-12-16 18:37:53,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-12-16 18:37:53,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:53,034 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 9, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:53,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 18:37:53,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:53,251 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:53,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:53,252 INFO L85 PathProgramCache]: Analyzing trace with hash -666714656, now seen corresponding path program 1 times [2023-12-16 18:37:53,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:53,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797183849] [2023-12-16 18:37:53,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:53,253 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:53,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:53,254 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 18:37:53,255 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 18:37:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:54,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 1315 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:37:54,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:55,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1528 backedges. 440 proven. 6 refuted. 0 times theorem prover too weak. 1082 trivial. 0 not checked. [2023-12-16 18:37:55,135 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:37:56,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1528 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1522 trivial. 0 not checked. [2023-12-16 18:37:56,662 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:56,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797183849] [2023-12-16 18:37:56,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [797183849] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:37:56,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:37:56,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2023-12-16 18:37:56,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222686679] [2023-12-16 18:37:56,662 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:37:56,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:37:56,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:56,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:37:56,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:37:56,664 INFO L87 Difference]: Start difference. First operand 188 states and 270 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 7 states have call successors, (58), 4 states have call predecessors, (58), 6 states have return successors, (58), 7 states have call predecessors, (58), 7 states have call successors, (58) [2023-12-16 18:38:00,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:38:08,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:38:08,870 INFO L93 Difference]: Finished difference Result 504 states and 750 transitions. [2023-12-16 18:38:08,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 18:38:08,871 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 7 states have call successors, (58), 4 states have call predecessors, (58), 6 states have return successors, (58), 7 states have call predecessors, (58), 7 states have call successors, (58) Word has length 241 [2023-12-16 18:38:08,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:38:08,873 INFO L225 Difference]: With dead ends: 504 [2023-12-16 18:38:08,873 INFO L226 Difference]: Without dead ends: 339 [2023-12-16 18:38:08,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-16 18:38:08,875 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 159 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 128 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:38:08,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 510 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 12.0s Time] [2023-12-16 18:38:08,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-12-16 18:38:08,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 332. [2023-12-16 18:38:08,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 215 states have (on average 1.2790697674418605) internal successors, (275), 219 states have internal predecessors, (275), 85 states have call successors, (85), 26 states have call predecessors, (85), 31 states have return successors, (115), 86 states have call predecessors, (115), 85 states have call successors, (115) [2023-12-16 18:38:08,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 475 transitions. [2023-12-16 18:38:08,911 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 475 transitions. Word has length 241 [2023-12-16 18:38:08,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:38:08,913 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 475 transitions. [2023-12-16 18:38:08,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 7 states have call successors, (58), 4 states have call predecessors, (58), 6 states have return successors, (58), 7 states have call predecessors, (58), 7 states have call successors, (58) [2023-12-16 18:38:08,914 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 475 transitions. [2023-12-16 18:38:08,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-12-16 18:38:08,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:38:08,917 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 9, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:38:08,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-16 18:38:09,134 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 18:38:09,134 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:38:09,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:38:09,135 INFO L85 PathProgramCache]: Analyzing trace with hash -625683998, now seen corresponding path program 1 times [2023-12-16 18:38:09,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:38:09,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342396362] [2023-12-16 18:38:09,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:38:09,136 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:09,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:38:09,137 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 18:38:09,138 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 18:38:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:38:10,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 18:38:10,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:38:11,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1528 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 1403 trivial. 0 not checked. [2023-12-16 18:38:11,783 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:38:11,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:38:11,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342396362] [2023-12-16 18:38:11,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342396362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:38:11,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:38:11,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:38:11,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040247316] [2023-12-16 18:38:11,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:38:11,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:38:11,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:38:11,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:38:11,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:38:11,784 INFO L87 Difference]: Start difference. First operand 332 states and 475 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-12-16 18:38:18,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:38:18,501 INFO L93 Difference]: Finished difference Result 868 states and 1272 transitions. [2023-12-16 18:38:18,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 18:38:18,502 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 241 [2023-12-16 18:38:18,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:38:18,504 INFO L225 Difference]: With dead ends: 868 [2023-12-16 18:38:18,505 INFO L226 Difference]: Without dead ends: 563 [2023-12-16 18:38:18,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-16 18:38:18,506 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 305 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-16 18:38:18,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 347 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-12-16 18:38:18,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-12-16 18:38:18,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 542. [2023-12-16 18:38:18,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 342 states have (on average 1.1695906432748537) internal successors, (400), 343 states have internal predecessors, (400), 147 states have call successors, (147), 38 states have call predecessors, (147), 52 states have return successors, (220), 160 states have call predecessors, (220), 147 states have call successors, (220) [2023-12-16 18:38:18,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 767 transitions. [2023-12-16 18:38:18,548 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 767 transitions. Word has length 241 [2023-12-16 18:38:18,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:38:18,548 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 767 transitions. [2023-12-16 18:38:18,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-12-16 18:38:18,548 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 767 transitions. [2023-12-16 18:38:18,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-12-16 18:38:18,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:38:18,551 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 9, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:38:18,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 18:38:18,766 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 18:38:18,767 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:38:18,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:38:18,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1493611360, now seen corresponding path program 1 times [2023-12-16 18:38:18,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:38:18,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [755163720] [2023-12-16 18:38:18,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:38:18,768 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:18,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:38:18,769 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 18:38:18,771 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 18:38:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:38:20,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 1370 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 18:38:20,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:38:21,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-12-16 18:38:21,346 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 18:38:21,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 9 [2023-12-16 18:38:21,704 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 18:38:21,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 13 [2023-12-16 18:38:21,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1528 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 1403 trivial. 0 not checked. [2023-12-16 18:38:21,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:38:21,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:38:21,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [755163720] [2023-12-16 18:38:21,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [755163720] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:38:21,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:38:21,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 18:38:21,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733080159] [2023-12-16 18:38:21,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:38:21,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:38:21,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:38:21,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:38:21,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:38:21,813 INFO L87 Difference]: Start difference. First operand 542 states and 767 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-12-16 18:38:26,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:38:30,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-16 18:38:33,836 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:38:33,851 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 (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:38:34,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:38:34,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:38:34,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:38:34,216 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:38:34,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 3 Unknown, 0 Unchecked, 12.4s Time] [2023-12-16 18:38:34,217 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 18:38:34,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 18:38:34,417 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 18:38:34,418 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (542states) and FLOYD_HOARE automaton (currently 4 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (21 states constructed, input type IntersectNwa). [2023-12-16 18:38:34,421 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1] [2023-12-16 18:38:34,423 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 18:38:34,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:38:34 BoogieIcfgContainer [2023-12-16 18:38:34,425 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 18:38:34,425 INFO L158 Benchmark]: Toolchain (without parser) took 75174.05ms. Allocated memory was 219.2MB in the beginning and 316.7MB in the end (delta: 97.5MB). Free memory was 149.9MB in the beginning and 218.3MB in the end (delta: -68.4MB). Peak memory consumption was 30.1MB. Max. memory is 8.0GB. [2023-12-16 18:38:34,426 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 219.2MB. Free memory was 170.1MB in the beginning and 169.9MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 18:38:34,426 INFO L158 Benchmark]: CACSL2BoogieTranslator took 609.62ms. Allocated memory was 219.2MB in the beginning and 263.2MB in the end (delta: 44.0MB). Free memory was 149.7MB in the beginning and 204.4MB in the end (delta: -54.7MB). Peak memory consumption was 7.9MB. Max. memory is 8.0GB. [2023-12-16 18:38:34,426 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.05ms. Allocated memory is still 263.2MB. Free memory was 204.4MB in the beginning and 199.6MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 18:38:34,427 INFO L158 Benchmark]: Boogie Preprocessor took 89.12ms. Allocated memory is still 263.2MB. Free memory was 199.6MB in the beginning and 190.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-16 18:38:34,427 INFO L158 Benchmark]: RCFGBuilder took 6611.12ms. Allocated memory is still 263.2MB. Free memory was 189.7MB in the beginning and 184.9MB in the end (delta: 4.8MB). Peak memory consumption was 39.4MB. Max. memory is 8.0GB. [2023-12-16 18:38:34,427 INFO L158 Benchmark]: TraceAbstraction took 67786.62ms. Allocated memory was 263.2MB in the beginning and 316.7MB in the end (delta: 53.5MB). Free memory was 184.3MB in the beginning and 218.3MB in the end (delta: -34.0MB). Peak memory consumption was 19.5MB. Max. memory is 8.0GB. [2023-12-16 18:38:34,430 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 219.2MB. Free memory was 170.1MB in the beginning and 169.9MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 609.62ms. Allocated memory was 219.2MB in the beginning and 263.2MB in the end (delta: 44.0MB). Free memory was 149.7MB in the beginning and 204.4MB in the end (delta: -54.7MB). Peak memory consumption was 7.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 71.05ms. Allocated memory is still 263.2MB. Free memory was 204.4MB in the beginning and 199.6MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 89.12ms. Allocated memory is still 263.2MB. Free memory was 199.6MB in the beginning and 190.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 6611.12ms. Allocated memory is still 263.2MB. Free memory was 189.7MB in the beginning and 184.9MB in the end (delta: 4.8MB). Peak memory consumption was 39.4MB. Max. memory is 8.0GB. * TraceAbstraction took 67786.62ms. Allocated memory was 263.2MB in the beginning and 316.7MB in the end (delta: 53.5MB). Free memory was 184.3MB in the beginning and 218.3MB in the end (delta: -34.0MB). Peak memory consumption was 19.5MB. 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: 542]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 542). Cancelled while NwaCegarLoop was constructing difference of abstraction (542states) and FLOYD_HOARE automaton (currently 4 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (21 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 111 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.7s, OverallIterations: 10, TraceHistogramMax: 27, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 48.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 667 SdHoareTripleChecker+Valid, 47.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 580 mSDsluCounter, 3678 SdHoareTripleChecker+Invalid, 46.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2315 mSDsCounter, 447 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1212 IncrementalHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 447 mSolverCounterUnsat, 1363 mSDtfsCounter, 1212 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2342 GetRequests, 2306 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=542occurred in iteration=9, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 30 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 9.2s InterpolantComputationTime, 1793 NumberOfCodeBlocks, 1500 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2333 ConstructedInterpolants, 0 QuantifiedInterpolants, 3474 SizeOfPredicates, 10 NumberOfNonLiveVariables, 8178 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 14779/14793 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