/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-82.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 15:33:17,551 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 15:33:17,587 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 15:33:17,590 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 15:33:17,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 15:33:17,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 15:33:17,605 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 15:33:17,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 15:33:17,605 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 15:33:17,605 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 15:33:17,606 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 15:33:17,606 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 15:33:17,606 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 15:33:17,607 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 15:33:17,607 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 15:33:17,607 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 15:33:17,607 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 15:33:17,607 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 15:33:17,608 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 15:33:17,608 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 15:33:17,608 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 15:33:17,609 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 15:33:17,609 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 15:33:17,609 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 15:33:17,610 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 15:33:17,610 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 15:33:17,610 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 15:33:17,611 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 15:33:17,611 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 15:33:17,611 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 15:33:17,611 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 15:33:17,612 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 15:33:17,612 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 15:33:17,612 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 15:33:17,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:33:17,613 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 15:33:17,613 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 15:33:17,613 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 15:33:17,613 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 15:33:17,613 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 15:33:17,614 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 15:33:17,614 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 15:33:17,614 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 15:33:17,614 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 15:33:17,614 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 15:33:17,614 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 15:33:17,615 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 15:33:17,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 15:33:17,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 15:33:17,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 15:33:17,770 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 15:33:17,770 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 15:33:17,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-82.i [2023-12-16 15:33:18,879 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 15:33:19,051 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 15:33:19,051 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-82.i [2023-12-16 15:33:19,057 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b82ed19d9/2861a3fd29454a26a72068ad9b4d83bf/FLAG43d0759b8 [2023-12-16 15:33:19,069 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b82ed19d9/2861a3fd29454a26a72068ad9b4d83bf [2023-12-16 15:33:19,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 15:33:19,072 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 15:33:19,073 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 15:33:19,073 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 15:33:19,076 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 15:33:19,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:33:19" (1/1) ... [2023-12-16 15:33:19,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c41708d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:19, skipping insertion in model container [2023-12-16 15:33:19,078 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:33:19" (1/1) ... [2023-12-16 15:33:19,103 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 15:33:19,211 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-82.i[916,929] [2023-12-16 15:33:19,258 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:33:19,268 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 15:33:19,276 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-82.i[916,929] [2023-12-16 15:33:19,323 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:33:19,367 INFO L206 MainTranslator]: Completed translation [2023-12-16 15:33:19,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:19 WrapperNode [2023-12-16 15:33:19,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 15:33:19,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 15:33:19,368 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 15:33:19,368 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 15:33:19,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:19" (1/1) ... [2023-12-16 15:33:19,400 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:19" (1/1) ... [2023-12-16 15:33:19,445 INFO L138 Inliner]: procedures = 33, calls = 162, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 497 [2023-12-16 15:33:19,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 15:33:19,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 15:33:19,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 15:33:19,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 15:33:19,458 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:19" (1/1) ... [2023-12-16 15:33:19,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:19" (1/1) ... [2023-12-16 15:33:19,464 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:19" (1/1) ... [2023-12-16 15:33:19,486 INFO L175 MemorySlicer]: Split 133 memory accesses to 5 slices as follows [2, 10, 6, 41, 74]. 56 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 1, 2, 3, 8]. The 17 writes are split as follows [0, 1, 2, 3, 11]. [2023-12-16 15:33:19,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:19" (1/1) ... [2023-12-16 15:33:19,486 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:19" (1/1) ... [2023-12-16 15:33:19,503 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:19" (1/1) ... [2023-12-16 15:33:19,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:19" (1/1) ... [2023-12-16 15:33:19,510 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:19" (1/1) ... [2023-12-16 15:33:19,512 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:19" (1/1) ... [2023-12-16 15:33:19,517 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 15:33:19,518 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 15:33:19,518 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 15:33:19,518 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 15:33:19,519 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:19" (1/1) ... [2023-12-16 15:33:19,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:33:19,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 15:33:19,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 15:33:19,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 15:33:19,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 15:33:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-12-16 15:33:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-12-16 15:33:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2023-12-16 15:33:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2023-12-16 15:33:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2023-12-16 15:33:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-12-16 15:33:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-12-16 15:33:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2023-12-16 15:33:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2023-12-16 15:33:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2023-12-16 15:33:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-16 15:33:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-16 15:33:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-16 15:33:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-16 15:33:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-16 15:33:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 15:33:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 15:33:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 15:33:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 15:33:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 15:33:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-12-16 15:33:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-12-16 15:33:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-12-16 15:33:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-12-16 15:33:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2023-12-16 15:33:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2023-12-16 15:33:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2023-12-16 15:33:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2023-12-16 15:33:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2023-12-16 15:33:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2023-12-16 15:33:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-12-16 15:33:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-12-16 15:33:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-12-16 15:33:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-12-16 15:33:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2023-12-16 15:33:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2023-12-16 15:33:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2023-12-16 15:33:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2023-12-16 15:33:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2023-12-16 15:33:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2023-12-16 15:33:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 15:33:19,602 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 15:33:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 15:33:19,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 15:33:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-16 15:33:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-16 15:33:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-16 15:33:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-16 15:33:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-16 15:33:19,728 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 15:33:19,730 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 15:33:22,756 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 15:33:22,803 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 15:33:22,803 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 15:33:22,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:33:22 BoogieIcfgContainer [2023-12-16 15:33:22,804 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 15:33:22,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 15:33:22,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 15:33:22,809 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 15:33:22,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:33:19" (1/3) ... [2023-12-16 15:33:22,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37469c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:33:22, skipping insertion in model container [2023-12-16 15:33:22,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:19" (2/3) ... [2023-12-16 15:33:22,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37469c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:33:22, skipping insertion in model container [2023-12-16 15:33:22,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:33:22" (3/3) ... [2023-12-16 15:33:22,811 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-82.i [2023-12-16 15:33:22,824 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 15:33:22,824 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 15:33:22,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 15:33:22,857 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;@226f9027, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 15:33:22,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 15:33:22,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 84 states have (on average 1.4523809523809523) internal successors, (122), 85 states have internal predecessors, (122), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 15:33:22,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 15:33:22,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:33:22,876 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:33:22,877 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:33:22,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:33:22,881 INFO L85 PathProgramCache]: Analyzing trace with hash -235031558, now seen corresponding path program 1 times [2023-12-16 15:33:22,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:33:22,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966528843] [2023-12-16 15:33:22,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:33:22,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:22,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:33:22,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:33:22,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 15:33:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:33:23,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 15:33:23,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:33:23,190 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2023-12-16 15:33:23,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:33:23,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:33:23,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966528843] [2023-12-16 15:33:23,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1966528843] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:33:23,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:33:23,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 15:33:23,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360644058] [2023-12-16 15:33:23,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:33:23,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 15:33:23,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:33:23,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 15:33:23,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 15:33:23,223 INFO L87 Difference]: Start difference. First operand has 101 states, 84 states have (on average 1.4523809523809523) internal successors, (122), 85 states have internal predecessors, (122), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:33:23,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:33:23,279 INFO L93 Difference]: Finished difference Result 199 states and 312 transitions. [2023-12-16 15:33:23,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 15:33:23,281 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2023-12-16 15:33:23,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:33:23,288 INFO L225 Difference]: With dead ends: 199 [2023-12-16 15:33:23,288 INFO L226 Difference]: Without dead ends: 99 [2023-12-16 15:33:23,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 15:33:23,297 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 15:33:23,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 15:33:23,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-16 15:33:23,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-12-16 15:33:23,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 83 states have internal predecessors, (113), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 15:33:23,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2023-12-16 15:33:23,341 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 114 [2023-12-16 15:33:23,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:33:23,341 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2023-12-16 15:33:23,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:33:23,343 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2023-12-16 15:33:23,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 15:33:23,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:33:23,351 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:33:23,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 15:33:23,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:23,553 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:33:23,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:33:23,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1328970660, now seen corresponding path program 1 times [2023-12-16 15:33:23,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:33:23,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127717860] [2023-12-16 15:33:23,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:33:23,554 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:23,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:33:23,556 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:33:23,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 15:33:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:33:23,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 15:33:23,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:33:23,839 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-12-16 15:33:23,840 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:33:23,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:33:23,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127717860] [2023-12-16 15:33:23,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127717860] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:33:23,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:33:23,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 15:33:23,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475679670] [2023-12-16 15:33:23,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:33:23,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 15:33:23,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:33:23,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 15:33:23,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 15:33:23,843 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:33:23,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:33:23,917 INFO L93 Difference]: Finished difference Result 203 states and 290 transitions. [2023-12-16 15:33:23,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 15:33:23,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2023-12-16 15:33:23,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:33:23,919 INFO L225 Difference]: With dead ends: 203 [2023-12-16 15:33:23,919 INFO L226 Difference]: Without dead ends: 105 [2023-12-16 15:33:23,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:33:23,920 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 10 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:33:23,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 400 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 15:33:23,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-16 15:33:23,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 101. [2023-12-16 15:33:23,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 85 states have (on average 1.3529411764705883) internal successors, (115), 85 states have internal predecessors, (115), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 15:33:23,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 143 transitions. [2023-12-16 15:33:23,929 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 143 transitions. Word has length 114 [2023-12-16 15:33:23,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:33:23,929 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 143 transitions. [2023-12-16 15:33:23,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:33:23,929 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 143 transitions. [2023-12-16 15:33:23,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 15:33:23,930 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:33:23,930 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:33:23,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 15:33:24,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:24,137 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:33:24,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:33:24,139 INFO L85 PathProgramCache]: Analyzing trace with hash -568526106, now seen corresponding path program 1 times [2023-12-16 15:33:24,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:33:24,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380621370] [2023-12-16 15:33:24,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:33:24,140 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:24,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:33:24,141 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:33:24,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 15:33:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:33:24,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 15:33:24,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:33:24,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-16 15:33:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:33:24,644 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:33:24,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:33:24,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380621370] [2023-12-16 15:33:24,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380621370] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:33:24,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:33:24,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 15:33:24,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899787518] [2023-12-16 15:33:24,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:33:24,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:33:24,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:33:24,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:33:24,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:33:24,646 INFO L87 Difference]: Start difference. First operand 101 states and 143 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:33:25,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:33:25,258 INFO L93 Difference]: Finished difference Result 298 states and 424 transitions. [2023-12-16 15:33:25,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 15:33:25,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-16 15:33:25,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:33:25,260 INFO L225 Difference]: With dead ends: 298 [2023-12-16 15:33:25,260 INFO L226 Difference]: Without dead ends: 198 [2023-12-16 15:33:25,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 15:33:25,261 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 113 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 15:33:25,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 453 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 15:33:25,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-12-16 15:33:25,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 171. [2023-12-16 15:33:25,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 140 states have (on average 1.3428571428571427) internal successors, (188), 140 states have internal predecessors, (188), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 15:33:25,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 244 transitions. [2023-12-16 15:33:25,275 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 244 transitions. Word has length 114 [2023-12-16 15:33:25,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:33:25,276 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 244 transitions. [2023-12-16 15:33:25,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:33:25,276 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 244 transitions. [2023-12-16 15:33:25,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 15:33:25,277 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:33:25,277 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:33:25,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 15:33:25,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:25,499 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:33:25,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:33:25,500 INFO L85 PathProgramCache]: Analyzing trace with hash 786543965, now seen corresponding path program 1 times [2023-12-16 15:33:25,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:33:25,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156094555] [2023-12-16 15:33:25,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:33:25,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:25,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:33:25,508 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:33:25,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 15:33:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:33:25,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 15:33:25,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:33:25,712 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:33:25,712 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:33:25,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:33:25,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156094555] [2023-12-16 15:33:25,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156094555] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:33:25,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:33:25,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 15:33:25,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514579386] [2023-12-16 15:33:25,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:33:25,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 15:33:25,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:33:25,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 15:33:25,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 15:33:25,714 INFO L87 Difference]: Start difference. First operand 171 states and 244 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:33:25,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:33:25,762 INFO L93 Difference]: Finished difference Result 301 states and 428 transitions. [2023-12-16 15:33:25,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 15:33:25,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-16 15:33:25,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:33:25,764 INFO L225 Difference]: With dead ends: 301 [2023-12-16 15:33:25,764 INFO L226 Difference]: Without dead ends: 201 [2023-12-16 15:33:25,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:33:25,766 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 49 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 15:33:25,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 446 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 15:33:25,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-12-16 15:33:25,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 175. [2023-12-16 15:33:25,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 144 states have (on average 1.3333333333333333) internal successors, (192), 144 states have internal predecessors, (192), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 15:33:25,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 248 transitions. [2023-12-16 15:33:25,778 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 248 transitions. Word has length 114 [2023-12-16 15:33:25,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:33:25,778 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 248 transitions. [2023-12-16 15:33:25,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:33:25,778 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 248 transitions. [2023-12-16 15:33:25,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 15:33:25,779 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:33:25,779 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:33:25,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 15:33:25,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:25,989 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:33:25,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:33:25,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1580210315, now seen corresponding path program 1 times [2023-12-16 15:33:25,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:33:25,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732028337] [2023-12-16 15:33:25,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:33:25,991 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:25,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:33:25,992 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:33:26,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 15:33:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:33:26,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 15:33:26,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:33:26,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-12-16 15:33:26,494 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 63 proven. 36 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2023-12-16 15:33:26,494 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:33:26,587 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:33:26,587 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:33:26,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732028337] [2023-12-16 15:33:26,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732028337] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 15:33:26,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 15:33:26,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-16 15:33:26,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327340736] [2023-12-16 15:33:26,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:33:26,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:33:26,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:33:26,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:33:26,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-12-16 15:33:26,589 INFO L87 Difference]: Start difference. First operand 175 states and 248 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:33:26,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:33:26,649 INFO L93 Difference]: Finished difference Result 365 states and 515 transitions. [2023-12-16 15:33:26,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 15:33:26,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2023-12-16 15:33:26,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:33:26,651 INFO L225 Difference]: With dead ends: 365 [2023-12-16 15:33:26,651 INFO L226 Difference]: Without dead ends: 256 [2023-12-16 15:33:26,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-12-16 15:33:26,654 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 181 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 15:33:26,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 452 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 15:33:26,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-12-16 15:33:26,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 195. [2023-12-16 15:33:26,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 164 states have (on average 1.353658536585366) internal successors, (222), 164 states have internal predecessors, (222), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 15:33:26,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 278 transitions. [2023-12-16 15:33:26,677 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 278 transitions. Word has length 116 [2023-12-16 15:33:26,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:33:26,677 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 278 transitions. [2023-12-16 15:33:26,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:33:26,677 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 278 transitions. [2023-12-16 15:33:26,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-16 15:33:26,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:33:26,678 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:33:26,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 15:33:26,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:26,894 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:33:26,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:33:26,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1249587293, now seen corresponding path program 1 times [2023-12-16 15:33:26,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:33:26,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138653377] [2023-12-16 15:33:26,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:33:26,896 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:26,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:33:26,897 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:33:26,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 15:33:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:33:27,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 15:33:27,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:33:27,143 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:33:27,143 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:33:27,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:33:27,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138653377] [2023-12-16 15:33:27,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138653377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:33:27,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:33:27,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 15:33:27,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343897105] [2023-12-16 15:33:27,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:33:27,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:33:27,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:33:27,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:33:27,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:33:27,145 INFO L87 Difference]: Start difference. First operand 195 states and 278 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:33:27,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:33:27,231 INFO L93 Difference]: Finished difference Result 365 states and 517 transitions. [2023-12-16 15:33:27,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 15:33:27,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-12-16 15:33:27,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:33:27,233 INFO L225 Difference]: With dead ends: 365 [2023-12-16 15:33:27,233 INFO L226 Difference]: Without dead ends: 253 [2023-12-16 15:33:27,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 15:33:27,234 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 86 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:33:27,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 582 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 15:33:27,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-12-16 15:33:27,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 197. [2023-12-16 15:33:27,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 166 states have (on average 1.3493975903614457) internal successors, (224), 166 states have internal predecessors, (224), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 15:33:27,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 280 transitions. [2023-12-16 15:33:27,243 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 280 transitions. Word has length 117 [2023-12-16 15:33:27,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:33:27,243 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 280 transitions. [2023-12-16 15:33:27,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:33:27,244 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 280 transitions. [2023-12-16 15:33:27,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 15:33:27,244 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:33:27,245 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:33:27,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 15:33:27,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:27,452 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:33:27,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:33:27,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1615892429, now seen corresponding path program 1 times [2023-12-16 15:33:27,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:33:27,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1266291450] [2023-12-16 15:33:27,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:33:27,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:27,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:33:27,454 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:33:27,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 15:33:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:33:27,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 15:33:27,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:33:27,670 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:33:27,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:33:27,671 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:33:27,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1266291450] [2023-12-16 15:33:27,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1266291450] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:33:27,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:33:27,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 15:33:27,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036147640] [2023-12-16 15:33:27,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:33:27,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 15:33:27,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:33:27,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 15:33:27,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 15:33:27,672 INFO L87 Difference]: Start difference. First operand 197 states and 280 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:33:27,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:33:27,764 INFO L93 Difference]: Finished difference Result 322 states and 457 transitions. [2023-12-16 15:33:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 15:33:27,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2023-12-16 15:33:27,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:33:27,765 INFO L225 Difference]: With dead ends: 322 [2023-12-16 15:33:27,765 INFO L226 Difference]: Without dead ends: 209 [2023-12-16 15:33:27,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:33:27,766 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 21 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:33:27,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 402 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 15:33:27,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-16 15:33:27,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 199. [2023-12-16 15:33:27,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 168 states have (on average 1.3452380952380953) internal successors, (226), 168 states have internal predecessors, (226), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 15:33:27,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 282 transitions. [2023-12-16 15:33:27,774 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 282 transitions. Word has length 118 [2023-12-16 15:33:27,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:33:27,774 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 282 transitions. [2023-12-16 15:33:27,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:33:27,774 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 282 transitions. [2023-12-16 15:33:27,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 15:33:27,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:33:27,775 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:33:27,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 15:33:27,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:27,978 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:33:27,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:33:27,979 INFO L85 PathProgramCache]: Analyzing trace with hash 806545803, now seen corresponding path program 1 times [2023-12-16 15:33:27,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:33:27,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146141881] [2023-12-16 15:33:27,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:33:27,979 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:27,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:33:27,981 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:33:27,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 15:33:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:33:28,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 15:33:28,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:33:28,202 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:33:28,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:33:28,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:33:28,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146141881] [2023-12-16 15:33:28,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146141881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:33:28,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:33:28,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 15:33:28,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563746637] [2023-12-16 15:33:28,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:33:28,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:33:28,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:33:28,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:33:28,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:33:28,204 INFO L87 Difference]: Start difference. First operand 199 states and 282 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:33:28,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:33:28,322 INFO L93 Difference]: Finished difference Result 327 states and 462 transitions. [2023-12-16 15:33:28,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 15:33:28,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2023-12-16 15:33:28,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:33:28,324 INFO L225 Difference]: With dead ends: 327 [2023-12-16 15:33:28,324 INFO L226 Difference]: Without dead ends: 212 [2023-12-16 15:33:28,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 15:33:28,325 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 24 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:33:28,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 531 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 15:33:28,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-12-16 15:33:28,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 201. [2023-12-16 15:33:28,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 170 states have (on average 1.3411764705882352) internal successors, (228), 170 states have internal predecessors, (228), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 15:33:28,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 284 transitions. [2023-12-16 15:33:28,332 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 284 transitions. Word has length 118 [2023-12-16 15:33:28,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:33:28,332 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 284 transitions. [2023-12-16 15:33:28,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:33:28,333 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 284 transitions. [2023-12-16 15:33:28,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 15:33:28,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:33:28,333 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:33:28,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 15:33:28,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:28,540 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:33:28,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:33:28,541 INFO L85 PathProgramCache]: Analyzing trace with hash 863804105, now seen corresponding path program 1 times [2023-12-16 15:33:28,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:33:28,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081616707] [2023-12-16 15:33:28,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:33:28,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:28,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:33:28,562 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:33:28,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 15:33:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:33:28,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 15:33:28,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:33:28,872 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:33:28,872 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:33:28,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:33:28,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081616707] [2023-12-16 15:33:28,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1081616707] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:33:28,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:33:28,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 15:33:28,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588331228] [2023-12-16 15:33:28,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:33:28,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 15:33:28,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:33:28,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 15:33:28,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:33:28,874 INFO L87 Difference]: Start difference. First operand 201 states and 284 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:33:29,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:33:29,177 INFO L93 Difference]: Finished difference Result 330 states and 463 transitions. [2023-12-16 15:33:29,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 15:33:29,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2023-12-16 15:33:29,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:33:29,179 INFO L225 Difference]: With dead ends: 330 [2023-12-16 15:33:29,179 INFO L226 Difference]: Without dead ends: 213 [2023-12-16 15:33:29,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-16 15:33:29,180 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 19 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 15:33:29,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 653 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 15:33:29,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-12-16 15:33:29,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 203. [2023-12-16 15:33:29,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 172 states have (on average 1.3372093023255813) internal successors, (230), 172 states have internal predecessors, (230), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 15:33:29,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 286 transitions. [2023-12-16 15:33:29,188 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 286 transitions. Word has length 118 [2023-12-16 15:33:29,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:33:29,188 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 286 transitions. [2023-12-16 15:33:29,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:33:29,188 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 286 transitions. [2023-12-16 15:33:29,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 15:33:29,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:33:29,189 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:33:29,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-16 15:33:29,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:29,398 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:33:29,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:33:29,399 INFO L85 PathProgramCache]: Analyzing trace with hash 863863687, now seen corresponding path program 1 times [2023-12-16 15:33:29,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:33:29,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060800465] [2023-12-16 15:33:29,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:33:29,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:29,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:33:29,400 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:33:29,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 15:33:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:33:29,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-16 15:33:29,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:33:29,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-16 15:33:29,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2023-12-16 15:33:29,865 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 25 treesize of output 24 [2023-12-16 15:33:30,011 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:33:30,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2023-12-16 15:33:30,271 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:33:30,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 54 [2023-12-16 15:33:30,368 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:33:30,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 57 [2023-12-16 15:33:30,456 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:33:30,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 57 [2023-12-16 15:33:30,644 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:33:30,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 34 [2023-12-16 15:33:30,776 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-16 15:33:30,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:33:30,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:33:30,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060800465] [2023-12-16 15:33:30,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060800465] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:33:30,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:33:30,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 15:33:30,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774517039] [2023-12-16 15:33:30,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:33:30,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 15:33:30,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:33:30,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 15:33:30,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-12-16 15:33:30,778 INFO L87 Difference]: Start difference. First operand 203 states and 286 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 15:33:33,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:33:33,310 INFO L93 Difference]: Finished difference Result 444 states and 621 transitions. [2023-12-16 15:33:33,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 15:33:33,310 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2023-12-16 15:33:33,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:33:33,312 INFO L225 Difference]: With dead ends: 444 [2023-12-16 15:33:33,312 INFO L226 Difference]: Without dead ends: 325 [2023-12-16 15:33:33,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2023-12-16 15:33:33,313 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 471 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:33:33,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 1015 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 15:33:33,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-12-16 15:33:33,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 301. [2023-12-16 15:33:33,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 263 states have (on average 1.349809885931559) internal successors, (355), 264 states have internal predecessors, (355), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 15:33:33,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 423 transitions. [2023-12-16 15:33:33,324 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 423 transitions. Word has length 118 [2023-12-16 15:33:33,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:33:33,324 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 423 transitions. [2023-12-16 15:33:33,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 15:33:33,325 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 423 transitions. [2023-12-16 15:33:33,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 15:33:33,325 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:33:33,325 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:33:33,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 15:33:33,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:33,532 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:33:33,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:33:33,532 INFO L85 PathProgramCache]: Analyzing trace with hash 310824816, now seen corresponding path program 1 times [2023-12-16 15:33:33,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:33:33,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373447445] [2023-12-16 15:33:33,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:33:33,533 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:33,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:33:33,534 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:33:33,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 15:33:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:33:33,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 15:33:33,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:33:34,042 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 63 proven. 36 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2023-12-16 15:33:34,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:33:34,135 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:33:34,135 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:33:34,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373447445] [2023-12-16 15:33:34,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373447445] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 15:33:34,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 15:33:34,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2023-12-16 15:33:34,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366355966] [2023-12-16 15:33:34,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:33:34,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:33:34,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:33:34,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:33:34,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 15:33:34,137 INFO L87 Difference]: Start difference. First operand 301 states and 423 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:33:34,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:33:34,254 INFO L93 Difference]: Finished difference Result 661 states and 906 transitions. [2023-12-16 15:33:34,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 15:33:34,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2023-12-16 15:33:34,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:33:34,258 INFO L225 Difference]: With dead ends: 661 [2023-12-16 15:33:34,259 INFO L226 Difference]: Without dead ends: 438 [2023-12-16 15:33:34,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 15:33:34,260 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 98 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:33:34,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 627 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 15:33:34,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-12-16 15:33:34,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 286. [2023-12-16 15:33:34,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 248 states have (on average 1.3346774193548387) internal successors, (331), 249 states have internal predecessors, (331), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 15:33:34,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 399 transitions. [2023-12-16 15:33:34,275 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 399 transitions. Word has length 119 [2023-12-16 15:33:34,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:33:34,275 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 399 transitions. [2023-12-16 15:33:34,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:33:34,275 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 399 transitions. [2023-12-16 15:33:34,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-16 15:33:34,276 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:33:34,276 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:33:34,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 15:33:34,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:34,482 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:33:34,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:33:34,483 INFO L85 PathProgramCache]: Analyzing trace with hash -537574160, now seen corresponding path program 1 times [2023-12-16 15:33:34,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:33:34,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628740569] [2023-12-16 15:33:34,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:33:34,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:34,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:33:34,484 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:33:34,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 15:33:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:33:34,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-16 15:33:34,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:33:36,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2023-12-16 15:33:40,806 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:33:40,807 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 182 treesize of output 98 [2023-12-16 15:33:40,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 107 [2023-12-16 15:33:41,129 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-12-16 15:33:41,129 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:33:41,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:33:41,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628740569] [2023-12-16 15:33:41,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628740569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:33:41,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:33:41,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 15:33:41,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723735050] [2023-12-16 15:33:41,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:33:41,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 15:33:41,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:33:41,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 15:33:41,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-16 15:33:41,131 INFO L87 Difference]: Start difference. First operand 286 states and 399 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:33:45,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-16 15:33:49,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 15:33:51,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 15:33:52,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-16 15:33:53,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:33:53,140 INFO L93 Difference]: Finished difference Result 576 states and 795 transitions. [2023-12-16 15:33:53,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 15:33:53,146 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2023-12-16 15:33:53,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:33:53,148 INFO L225 Difference]: With dead ends: 576 [2023-12-16 15:33:53,148 INFO L226 Difference]: Without dead ends: 574 [2023-12-16 15:33:53,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-12-16 15:33:53,149 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 311 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-12-16 15:33:53,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 739 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-12-16 15:33:53,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2023-12-16 15:33:53,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 556. [2023-12-16 15:33:53,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 482 states have (on average 1.3257261410788381) internal successors, (639), 486 states have internal predecessors, (639), 65 states have call successors, (65), 8 states have call predecessors, (65), 8 states have return successors, (65), 61 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-16 15:33:53,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 769 transitions. [2023-12-16 15:33:53,179 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 769 transitions. Word has length 120 [2023-12-16 15:33:53,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:33:53,182 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 769 transitions. [2023-12-16 15:33:53,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:33:53,182 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 769 transitions. [2023-12-16 15:33:53,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-16 15:33:53,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:33:53,183 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:33:53,206 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 (13)] Forceful destruction successful, exit code 0 [2023-12-16 15:33:53,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:53,390 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:33:53,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:33:53,391 INFO L85 PathProgramCache]: Analyzing trace with hash -537514578, now seen corresponding path program 1 times [2023-12-16 15:33:53,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:33:53,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075919400] [2023-12-16 15:33:53,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:33:53,391 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:53,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:33:53,392 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:33:53,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 15:33:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:33:53,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-16 15:33:53,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:33:53,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-16 15:33:53,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-16 15:33:53,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-16 15:33:53,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-16 15:33:53,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2023-12-16 15:33:53,823 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 30 treesize of output 14 [2023-12-16 15:33:53,836 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:33:53,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2023-12-16 15:33:53,858 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:33:53,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 46 [2023-12-16 15:33:54,151 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:33:54,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 36 [2023-12-16 15:33:54,204 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-12-16 15:33:54,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:33:54,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:33:54,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075919400] [2023-12-16 15:33:54,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075919400] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:33:54,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:33:54,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 15:33:54,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736978743] [2023-12-16 15:33:54,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:33:54,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 15:33:54,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:33:54,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 15:33:54,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-16 15:33:54,206 INFO L87 Difference]: Start difference. First operand 556 states and 769 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:33:56,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:33:56,248 INFO L93 Difference]: Finished difference Result 1330 states and 1785 transitions. [2023-12-16 15:33:56,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 15:33:56,249 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2023-12-16 15:33:56,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:33:56,253 INFO L225 Difference]: With dead ends: 1330 [2023-12-16 15:33:56,254 INFO L226 Difference]: Without dead ends: 914 [2023-12-16 15:33:56,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2023-12-16 15:33:56,256 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 381 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 15:33:56,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 628 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 15:33:56,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2023-12-16 15:33:56,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 676. [2023-12-16 15:33:56,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 598 states have (on average 1.285953177257525) internal successors, (769), 602 states have internal predecessors, (769), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 61 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-16 15:33:56,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 899 transitions. [2023-12-16 15:33:56,292 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 899 transitions. Word has length 120 [2023-12-16 15:33:56,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:33:56,292 INFO L495 AbstractCegarLoop]: Abstraction has 676 states and 899 transitions. [2023-12-16 15:33:56,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:33:56,293 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 899 transitions. [2023-12-16 15:33:56,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-16 15:33:56,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:33:56,294 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:33:56,300 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 (14)] Ended with exit code 0 [2023-12-16 15:33:56,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:56,500 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:33:56,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:33:56,500 INFO L85 PathProgramCache]: Analyzing trace with hash -480256276, now seen corresponding path program 1 times [2023-12-16 15:33:56,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:33:56,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715217335] [2023-12-16 15:33:56,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:33:56,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:33:56,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:33:56,502 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:33:56,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 15:33:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:33:56,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-16 15:33:56,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:33:56,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-16 15:33:57,118 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 68 treesize of output 32 [2023-12-16 15:33:58,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 19 [2023-12-16 15:34:01,920 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:34:01,920 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 156 treesize of output 86 [2023-12-16 15:34:01,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 107 [2023-12-16 15:34:02,285 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-12-16 15:34:02,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:34:02,286 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:34:02,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715217335] [2023-12-16 15:34:02,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715217335] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:34:02,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:34:02,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 15:34:02,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308941222] [2023-12-16 15:34:02,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:34:02,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 15:34:02,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:34:02,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 15:34:02,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-16 15:34:02,287 INFO L87 Difference]: Start difference. First operand 676 states and 899 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:34:05,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-16 15:34:08,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-16 15:34:12,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-16 15:34:14,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-16 15:34:15,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:34:15,041 INFO L93 Difference]: Finished difference Result 1865 states and 2463 transitions. [2023-12-16 15:34:15,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 15:34:15,046 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2023-12-16 15:34:15,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:34:15,050 INFO L225 Difference]: With dead ends: 1865 [2023-12-16 15:34:15,050 INFO L226 Difference]: Without dead ends: 1347 [2023-12-16 15:34:15,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-16 15:34:15,052 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 228 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:34:15,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 754 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2023-12-16 15:34:15,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2023-12-16 15:34:15,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1321. [2023-12-16 15:34:15,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 1164 states have (on average 1.2774914089347078) internal successors, (1487), 1176 states have internal predecessors, (1487), 128 states have call successors, (128), 28 states have call predecessors, (128), 28 states have return successors, (128), 116 states have call predecessors, (128), 128 states have call successors, (128) [2023-12-16 15:34:15,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1743 transitions. [2023-12-16 15:34:15,108 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1743 transitions. Word has length 120 [2023-12-16 15:34:15,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:34:15,108 INFO L495 AbstractCegarLoop]: Abstraction has 1321 states and 1743 transitions. [2023-12-16 15:34:15,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:34:15,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1743 transitions. [2023-12-16 15:34:15,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-16 15:34:15,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:34:15,110 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:34:15,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 15:34:15,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:34:15,317 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:34:15,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:34:15,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1063496946, now seen corresponding path program 1 times [2023-12-16 15:34:15,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:34:15,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536922901] [2023-12-16 15:34:15,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:34:15,317 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:34:15,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:34:15,319 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:34:15,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 15:34:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:34:15,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 15:34:15,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:34:15,544 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-12-16 15:34:15,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:34:15,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:34:15,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536922901] [2023-12-16 15:34:15,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536922901] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:34:15,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:34:15,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 15:34:15,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990477940] [2023-12-16 15:34:15,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:34:15,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 15:34:15,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:34:15,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 15:34:15,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 15:34:15,545 INFO L87 Difference]: Start difference. First operand 1321 states and 1743 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:34:15,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:34:15,652 INFO L93 Difference]: Finished difference Result 2499 states and 3290 transitions. [2023-12-16 15:34:15,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 15:34:15,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2023-12-16 15:34:15,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:34:15,657 INFO L225 Difference]: With dead ends: 2499 [2023-12-16 15:34:15,657 INFO L226 Difference]: Without dead ends: 1345 [2023-12-16 15:34:15,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:34:15,660 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 7 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 15:34:15,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 393 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 15:34:15,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2023-12-16 15:34:15,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1321. [2023-12-16 15:34:15,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 1164 states have (on average 1.27233676975945) internal successors, (1481), 1176 states have internal predecessors, (1481), 128 states have call successors, (128), 28 states have call predecessors, (128), 28 states have return successors, (128), 116 states have call predecessors, (128), 128 states have call successors, (128) [2023-12-16 15:34:15,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1737 transitions. [2023-12-16 15:34:15,718 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1737 transitions. Word has length 120 [2023-12-16 15:34:15,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:34:15,720 INFO L495 AbstractCegarLoop]: Abstraction has 1321 states and 1737 transitions. [2023-12-16 15:34:15,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:34:15,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1737 transitions. [2023-12-16 15:34:15,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 15:34:15,722 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:34:15,722 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:34:15,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-16 15:34:15,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:34:15,930 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:34:15,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:34:15,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1473565340, now seen corresponding path program 1 times [2023-12-16 15:34:15,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:34:15,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467667017] [2023-12-16 15:34:15,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:34:15,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:34:15,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:34:15,940 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:34:15,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 15:34:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:34:16,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 15:34:16,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:34:16,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 43 [2023-12-16 15:34:16,325 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 132 proven. 8 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-12-16 15:34:16,325 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:34:16,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2023-12-16 15:34:16,485 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-16 15:34:16,485 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:34:16,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1467667017] [2023-12-16 15:34:16,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1467667017] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 15:34:16,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 15:34:16,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2023-12-16 15:34:16,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876832066] [2023-12-16 15:34:16,486 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 15:34:16,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 15:34:16,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:34:16,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 15:34:16,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-16 15:34:16,487 INFO L87 Difference]: Start difference. First operand 1321 states and 1737 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2023-12-16 15:34:18,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 15:34:20,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:34:20,914 INFO L93 Difference]: Finished difference Result 2568 states and 3350 transitions. [2023-12-16 15:34:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 15:34:20,915 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 122 [2023-12-16 15:34:20,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:34:20,919 INFO L225 Difference]: With dead ends: 2568 [2023-12-16 15:34:20,919 INFO L226 Difference]: Without dead ends: 1351 [2023-12-16 15:34:20,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2023-12-16 15:34:20,921 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 138 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-16 15:34:20,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 778 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-16 15:34:20,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2023-12-16 15:34:20,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1311. [2023-12-16 15:34:20,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 1154 states have (on average 1.2660311958405546) internal successors, (1461), 1166 states have internal predecessors, (1461), 128 states have call successors, (128), 28 states have call predecessors, (128), 28 states have return successors, (128), 116 states have call predecessors, (128), 128 states have call successors, (128) [2023-12-16 15:34:20,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 1717 transitions. [2023-12-16 15:34:20,976 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 1717 transitions. Word has length 122 [2023-12-16 15:34:20,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:34:20,976 INFO L495 AbstractCegarLoop]: Abstraction has 1311 states and 1717 transitions. [2023-12-16 15:34:20,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2023-12-16 15:34:20,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 1717 transitions. [2023-12-16 15:34:20,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 15:34:20,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:34:20,977 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:34:20,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 15:34:21,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:34:21,185 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:34:21,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:34:21,185 INFO L85 PathProgramCache]: Analyzing trace with hash 63337590, now seen corresponding path program 1 times [2023-12-16 15:34:21,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:34:21,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32792851] [2023-12-16 15:34:21,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:34:21,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:34:21,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:34:21,186 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:34:21,188 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 (18)] Waiting until timeout for monitored process [2023-12-16 15:34:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:34:21,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-16 15:34:21,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:34:22,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2023-12-16 15:34:27,686 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:34:27,686 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 182 treesize of output 98 [2023-12-16 15:34:27,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 105 [2023-12-16 15:34:28,014 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 142 proven. 30 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-12-16 15:34:28,014 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 15:34:32,331 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 15:34:32,373 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 (18)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 15:34:32,445 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 15:34:32,452 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 (18)] Forceful destruction successful, exit code 0 [2023-12-16 15:34:32,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:34:32,646 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 123 with TraceHistMax 14,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 15 known predicates. [2023-12-16 15:34:32,650 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:34:32,651 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 15:34:32,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:34:32 BoogieIcfgContainer [2023-12-16 15:34:32,653 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 15:34:32,654 INFO L158 Benchmark]: Toolchain (without parser) took 73580.93ms. Allocated memory was 231.7MB in the beginning and 278.9MB in the end (delta: 47.2MB). Free memory was 179.2MB in the beginning and 210.4MB in the end (delta: -31.2MB). Peak memory consumption was 16.4MB. Max. memory is 8.0GB. [2023-12-16 15:34:32,656 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 165.7MB. Free memory was 116.5MB in the beginning and 116.4MB in the end (delta: 164.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 15:34:32,657 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.67ms. Allocated memory is still 231.7MB. Free memory was 179.2MB in the beginning and 161.0MB in the end (delta: 18.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 15:34:32,657 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.71ms. Allocated memory is still 231.7MB. Free memory was 161.0MB in the beginning and 157.2MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 15:34:32,657 INFO L158 Benchmark]: Boogie Preprocessor took 71.14ms. Allocated memory is still 231.7MB. Free memory was 157.2MB in the beginning and 151.5MB in the end (delta: 5.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 15:34:32,658 INFO L158 Benchmark]: RCFGBuilder took 3285.81ms. Allocated memory is still 231.7MB. Free memory was 151.5MB in the beginning and 178.0MB in the end (delta: -26.5MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-12-16 15:34:32,658 INFO L158 Benchmark]: TraceAbstraction took 69846.18ms. Allocated memory was 231.7MB in the beginning and 278.9MB in the end (delta: 47.2MB). Free memory was 177.5MB in the beginning and 210.4MB in the end (delta: -32.9MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. [2023-12-16 15:34:32,660 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 165.7MB. Free memory was 116.5MB in the beginning and 116.4MB in the end (delta: 164.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 294.67ms. Allocated memory is still 231.7MB. Free memory was 179.2MB in the beginning and 161.0MB in the end (delta: 18.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 77.71ms. Allocated memory is still 231.7MB. Free memory was 161.0MB in the beginning and 157.2MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 71.14ms. Allocated memory is still 231.7MB. Free memory was 157.2MB in the beginning and 151.5MB in the end (delta: 5.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 3285.81ms. Allocated memory is still 231.7MB. Free memory was 151.5MB in the beginning and 178.0MB in the end (delta: -26.5MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 69846.18ms. Allocated memory was 231.7MB in the beginning and 278.9MB in the end (delta: 47.2MB). Free memory was 177.5MB in the beginning and 210.4MB in the end (delta: -32.9MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 123 with TraceHistMax 14,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 15 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 69.8s, OverallIterations: 17, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 35.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2155 SdHoareTripleChecker+Valid, 31.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2137 mSDsluCounter, 8990 SdHoareTripleChecker+Invalid, 29.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6745 mSDsCounter, 120 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2590 IncrementalHoareTripleChecker+Invalid, 2710 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 120 mSolverCounterUnsat, 2245 mSDtfsCounter, 2590 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2275 GetRequests, 2137 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1321occurred in iteration=14, InterpolantAutomatonStates: 132, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 16 MinimizatonAttempts, 727 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 15.2s InterpolantComputationTime, 1882 NumberOfCodeBlocks, 1882 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2220 ConstructedInterpolants, 121 QuantifiedInterpolants, 19721 SizeOfPredicates, 93 NumberOfNonLiveVariables, 4315 ConjunctsInSsa, 158 ConjunctsInUnsatCore, 19 InterpolantComputations, 15 PerfectInterpolantSequences, 6803/6916 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