/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0683b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-02 23:15:03,640 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 23:15:03,679 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-02 23:15:03,682 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 23:15:03,682 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 23:15:03,695 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 23:15:03,696 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 23:15:03,696 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 23:15:03,696 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-02 23:15:03,697 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-02 23:15:03,697 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 23:15:03,697 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 23:15:03,697 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 23:15:03,698 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 23:15:03,698 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 23:15:03,698 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 23:15:03,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 23:15:03,699 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 23:15:03,699 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 23:15:03,699 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 23:15:03,699 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 23:15:03,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 23:15:03,702 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 23:15:03,702 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 23:15:03,702 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 23:15:03,702 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 23:15:03,703 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 23:15:03,703 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 23:15:03,703 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 23:15:03,703 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 23:15:03,703 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 23:15:03,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 23:15:03,704 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 23:15:03,704 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 23:15:03,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 23:15:03,704 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 23:15:03,705 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 23:15:03,705 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 23:15:03,705 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-02 23:15:03,705 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 23:15:03,705 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 23:15:03,706 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-02 23:15:03,706 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-02 23:15:03,706 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 23:15:03,706 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:15:03,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 23:15:03,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 23:15:03,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 23:15:03,923 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 23:15:03,923 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 23:15:03,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0683b.c [2024-11-02 23:15:05,180 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 23:15:05,375 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 23:15:05,375 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0683b.c [2024-11-02 23:15:05,380 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f463dee2/5b17b76e63eb466a852441a9515e8303/FLAGe2ded8de8 [2024-11-02 23:15:05,775 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f463dee2/5b17b76e63eb466a852441a9515e8303 [2024-11-02 23:15:05,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 23:15:05,779 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-02 23:15:05,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 23:15:05,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 23:15:05,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 23:15:05,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:15:05" (1/1) ... [2024-11-02 23:15:05,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25bd7065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:05, skipping insertion in model container [2024-11-02 23:15:05,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:15:05" (1/1) ... [2024-11-02 23:15:05,809 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 23:15:05,998 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0683b.c[5824,5837] [2024-11-02 23:15:06,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 23:15:06,020 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 23:15:06,071 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0683b.c[5824,5837] [2024-11-02 23:15:06,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 23:15:06,088 INFO L204 MainTranslator]: Completed translation [2024-11-02 23:15:06,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:06 WrapperNode [2024-11-02 23:15:06,089 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 23:15:06,090 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 23:15:06,090 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 23:15:06,090 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 23:15:06,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:06" (1/1) ... [2024-11-02 23:15:06,109 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:06" (1/1) ... [2024-11-02 23:15:06,129 INFO L138 Inliner]: procedures = 25, calls = 89, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 264 [2024-11-02 23:15:06,129 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 23:15:06,130 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 23:15:06,130 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 23:15:06,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 23:15:06,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:06" (1/1) ... [2024-11-02 23:15:06,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:06" (1/1) ... [2024-11-02 23:15:06,143 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:06" (1/1) ... [2024-11-02 23:15:06,167 INFO L175 MemorySlicer]: Split 57 memory accesses to 13 slices as follows [2, 2, 2, 2, 7, 2, 7, 2, 23, 2, 2, 2, 2]. 40 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 0, 0, 0, 4, 0, 4, 0, 0, 0, 0, 0, 0]. The 21 writes are split as follows [0, 1, 1, 1, 0, 1, 0, 1, 12, 1, 1, 1, 1]. [2024-11-02 23:15:06,167 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:06" (1/1) ... [2024-11-02 23:15:06,167 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:06" (1/1) ... [2024-11-02 23:15:06,181 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:06" (1/1) ... [2024-11-02 23:15:06,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:06" (1/1) ... [2024-11-02 23:15:06,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:06" (1/1) ... [2024-11-02 23:15:06,190 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:06" (1/1) ... [2024-11-02 23:15:06,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 23:15:06,196 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 23:15:06,196 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 23:15:06,196 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 23:15:06,197 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:06" (1/1) ... [2024-11-02 23:15:06,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 23:15:06,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:15:06,233 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) [2024-11-02 23:15:06,237 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 [2024-11-02 23:15:06,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 23:15:06,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-02 23:15:06,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-02 23:15:06,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-02 23:15:06,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-02 23:15:06,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-02 23:15:06,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-02 23:15:06,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-02 23:15:06,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-11-02 23:15:06,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-11-02 23:15:06,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2024-11-02 23:15:06,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2024-11-02 23:15:06,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11 [2024-11-02 23:15:06,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#12 [2024-11-02 23:15:06,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-02 23:15:06,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-02 23:15:06,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-02 23:15:06,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-02 23:15:06,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-02 23:15:06,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-02 23:15:06,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-02 23:15:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-02 23:15:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-02 23:15:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-02 23:15:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-02 23:15:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-02 23:15:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-11-02 23:15:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 23:15:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-02 23:15:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-02 23:15:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-02 23:15:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-02 23:15:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-02 23:15:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-02 23:15:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-02 23:15:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-02 23:15:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-02 23:15:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-02 23:15:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-02 23:15:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-02 23:15:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2024-11-02 23:15:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2024-11-02 23:15:06,279 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2024-11-02 23:15:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-02 23:15:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-02 23:15:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-02 23:15:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-02 23:15:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-02 23:15:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-02 23:15:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-02 23:15:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-02 23:15:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-02 23:15:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-02 23:15:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-02 23:15:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-02 23:15:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2024-11-02 23:15:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-02 23:15:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-02 23:15:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2 [2024-11-02 23:15:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3 [2024-11-02 23:15:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4 [2024-11-02 23:15:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5 [2024-11-02 23:15:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6 [2024-11-02 23:15:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7 [2024-11-02 23:15:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8 [2024-11-02 23:15:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9 [2024-11-02 23:15:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10 [2024-11-02 23:15:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#11 [2024-11-02 23:15:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#12 [2024-11-02 23:15:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 23:15:06,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 23:15:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-02 23:15:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-02 23:15:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-02 23:15:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-02 23:15:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-02 23:15:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-02 23:15:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-02 23:15:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-02 23:15:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-02 23:15:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-02 23:15:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-02 23:15:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-02 23:15:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2024-11-02 23:15:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2024-11-02 23:15:06,287 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2024-11-02 23:15:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-02 23:15:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-02 23:15:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-02 23:15:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-02 23:15:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-02 23:15:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-02 23:15:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-02 23:15:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-02 23:15:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-02 23:15:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-02 23:15:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-02 23:15:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2024-11-02 23:15:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2024-11-02 23:15:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 23:15:06,467 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 23:15:06,468 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 23:15:25,768 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-02 23:15:25,768 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 23:15:25,785 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 23:15:25,785 INFO L316 CfgBuilder]: Removed 18 assume(true) statements. [2024-11-02 23:15:25,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:15:25 BoogieIcfgContainer [2024-11-02 23:15:25,787 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 23:15:25,789 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 23:15:25,789 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 23:15:25,792 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 23:15:25,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:15:05" (1/3) ... [2024-11-02 23:15:25,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8ad198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:15:25, skipping insertion in model container [2024-11-02 23:15:25,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:06" (2/3) ... [2024-11-02 23:15:25,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8ad198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:15:25, skipping insertion in model container [2024-11-02 23:15:25,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:15:25" (3/3) ... [2024-11-02 23:15:25,794 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0683b.c [2024-11-02 23:15:25,805 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 23:15:25,806 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 23:15:25,845 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 23:15:25,849 INFO L333 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, 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;@36606390, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 23:15:25,849 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 23:15:25,852 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 87 states have (on average 1.6551724137931034) internal successors, (144), 88 states have internal predecessors, (144), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-02 23:15:25,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-02 23:15:25,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:15:25,857 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:15:25,857 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:15:25,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:15:25,864 INFO L85 PathProgramCache]: Analyzing trace with hash 430509684, now seen corresponding path program 1 times [2024-11-02 23:15:25,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:15:25,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1940176701] [2024-11-02 23:15:25,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:15:25,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:15:25,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:15:25,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 23:15:25,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 23:15:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:15:26,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 23:15:26,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:15:26,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:15:26,060 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:15:26,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:15:26,063 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:15:26,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1940176701] [2024-11-02 23:15:26,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1940176701] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:15:26,064 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:15:26,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-02 23:15:26,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964652594] [2024-11-02 23:15:26,067 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:15:26,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 23:15:26,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:15:26,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 23:15:26,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 23:15:26,092 INFO L87 Difference]: Start difference. First operand has 95 states, 87 states have (on average 1.6551724137931034) internal successors, (144), 88 states have internal predecessors, (144), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:15:26,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:15:26,121 INFO L93 Difference]: Finished difference Result 188 states and 306 transitions. [2024-11-02 23:15:26,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 23:15:26,123 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-02 23:15:26,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:15:26,129 INFO L225 Difference]: With dead ends: 188 [2024-11-02 23:15:26,129 INFO L226 Difference]: Without dead ends: 91 [2024-11-02 23:15:26,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 23:15:26,134 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 23:15:26,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 23:15:26,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-02 23:15:26,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-02 23:15:26,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 84 states have (on average 1.4285714285714286) internal successors, (120), 84 states have internal predecessors, (120), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-02 23:15:26,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2024-11-02 23:15:26,160 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 128 transitions. Word has length 15 [2024-11-02 23:15:26,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:15:26,160 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 128 transitions. [2024-11-02 23:15:26,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:15:26,161 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 128 transitions. [2024-11-02 23:15:26,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-02 23:15:26,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:15:26,161 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:15:26,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 23:15:26,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:15:26,362 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:15:26,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:15:26,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1163685394, now seen corresponding path program 1 times [2024-11-02 23:15:26,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:15:26,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984262536] [2024-11-02 23:15:26,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:15:26,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:15:26,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:15:26,366 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 23:15:26,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 23:15:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:15:26,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-02 23:15:26,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:15:26,799 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 [2024-11-02 23:15:26,826 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 29 treesize of output 13 [2024-11-02 23:15:29,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-02 23:15:29,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-02 23:15:30,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:15:30,685 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:15:37,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:15:37,350 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:15:37,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984262536] [2024-11-02 23:15:37,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1984262536] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:15:37,351 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:15:37,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2024-11-02 23:15:37,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114029089] [2024-11-02 23:15:37,351 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:15:37,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-02 23:15:37,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:15:37,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-02 23:15:37,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2024-11-02 23:15:37,353 INFO L87 Difference]: Start difference. First operand 91 states and 128 transitions. Second operand has 20 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:15:43,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:15:43,614 INFO L93 Difference]: Finished difference Result 159 states and 218 transitions. [2024-11-02 23:15:43,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-02 23:15:43,615 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-02 23:15:43,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:15:43,616 INFO L225 Difference]: With dead ends: 159 [2024-11-02 23:15:43,616 INFO L226 Difference]: Without dead ends: 98 [2024-11-02 23:15:43,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=107, Invalid=595, Unknown=0, NotChecked=0, Total=702 [2024-11-02 23:15:43,617 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 247 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-02 23:15:43,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 1044 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-02 23:15:43,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-02 23:15:43,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 84. [2024-11-02 23:15:43,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 78 states have (on average 1.3205128205128205) internal successors, (103), 78 states have internal predecessors, (103), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 23:15:43,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2024-11-02 23:15:43,624 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 18 [2024-11-02 23:15:43,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:15:43,624 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2024-11-02 23:15:43,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:15:43,625 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2024-11-02 23:15:43,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-02 23:15:43,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:15:43,625 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:15:43,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-02 23:15:43,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:15:43,830 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:15:43,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:15:43,831 INFO L85 PathProgramCache]: Analyzing trace with hash 688042196, now seen corresponding path program 1 times [2024-11-02 23:15:43,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:15:43,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246253740] [2024-11-02 23:15:43,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:15:43,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:15:43,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:15:43,833 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 23:15:43,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 23:15:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:15:44,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-02 23:15:44,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:15:44,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:15:44,817 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:15:46,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:15:46,548 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:15:46,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1246253740] [2024-11-02 23:15:46,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1246253740] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:15:46,548 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:15:46,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2024-11-02 23:15:46,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472388184] [2024-11-02 23:15:46,548 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:15:46,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-02 23:15:46,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:15:46,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-02 23:15:46,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-02 23:15:46,550 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:15:48,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:15:48,795 INFO L93 Difference]: Finished difference Result 147 states and 192 transitions. [2024-11-02 23:15:48,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 23:15:48,796 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-02 23:15:48,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:15:48,797 INFO L225 Difference]: With dead ends: 147 [2024-11-02 23:15:48,797 INFO L226 Difference]: Without dead ends: 79 [2024-11-02 23:15:48,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-11-02 23:15:48,799 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 137 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-02 23:15:48,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 565 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-02 23:15:48,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-02 23:15:48,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2024-11-02 23:15:48,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 72 states have internal predecessors, (92), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 23:15:48,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 98 transitions. [2024-11-02 23:15:48,804 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 98 transitions. Word has length 23 [2024-11-02 23:15:48,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:15:48,805 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 98 transitions. [2024-11-02 23:15:48,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:15:48,805 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 98 transitions. [2024-11-02 23:15:48,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-02 23:15:48,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:15:48,805 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:15:48,823 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-02 23:15:49,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:15:49,006 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:15:49,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:15:49,007 INFO L85 PathProgramCache]: Analyzing trace with hash -408436717, now seen corresponding path program 1 times [2024-11-02 23:15:49,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:15:49,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57276942] [2024-11-02 23:15:49,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:15:49,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:15:49,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:15:49,009 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 23:15:49,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 23:15:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:15:49,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 23:15:49,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:15:50,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:15:50,084 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:15:50,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:15:50,999 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:15:50,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57276942] [2024-11-02 23:15:50,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [57276942] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:15:50,999 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:15:50,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-02 23:15:50,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711154849] [2024-11-02 23:15:50,999 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:15:51,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 23:15:51,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:15:51,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 23:15:51,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-02 23:15:51,001 INFO L87 Difference]: Start difference. First operand 78 states and 98 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:15:52,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:15:52,544 INFO L93 Difference]: Finished difference Result 84 states and 104 transitions. [2024-11-02 23:15:52,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 23:15:52,550 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-02 23:15:52,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:15:52,551 INFO L225 Difference]: With dead ends: 84 [2024-11-02 23:15:52,551 INFO L226 Difference]: Without dead ends: 81 [2024-11-02 23:15:52,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-02 23:15:52,552 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 82 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-02 23:15:52,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 271 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-02 23:15:52,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-02 23:15:52,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2024-11-02 23:15:52,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 74 states have (on average 1.2702702702702702) internal successors, (94), 74 states have internal predecessors, (94), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 23:15:52,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 100 transitions. [2024-11-02 23:15:52,577 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 100 transitions. Word has length 24 [2024-11-02 23:15:52,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:15:52,578 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 100 transitions. [2024-11-02 23:15:52,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:15:52,578 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 100 transitions. [2024-11-02 23:15:52,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-02 23:15:52,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:15:52,578 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:15:52,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-02 23:15:52,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:15:52,779 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:15:52,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:15:52,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1905478008, now seen corresponding path program 1 times [2024-11-02 23:15:52,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:15:52,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [950536119] [2024-11-02 23:15:52,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:15:52,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:15:52,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:15:52,782 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 23:15:52,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-02 23:15:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:15:52,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-02 23:15:52,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:15:55,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:15:55,495 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:15:58,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:15:58,541 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:15:58,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [950536119] [2024-11-02 23:15:58,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [950536119] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:15:58,541 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:15:58,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2024-11-02 23:15:58,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796853222] [2024-11-02 23:15:58,541 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:15:58,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-02 23:15:58,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:15:58,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-02 23:15:58,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-02 23:15:58,542 INFO L87 Difference]: Start difference. First operand 80 states and 100 transitions. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:16:02,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:16:02,222 INFO L93 Difference]: Finished difference Result 103 states and 127 transitions. [2024-11-02 23:16:02,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-02 23:16:02,223 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-02 23:16:02,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:16:02,225 INFO L225 Difference]: With dead ends: 103 [2024-11-02 23:16:02,225 INFO L226 Difference]: Without dead ends: 94 [2024-11-02 23:16:02,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2024-11-02 23:16:02,226 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 191 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-02 23:16:02,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 557 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-02 23:16:02,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-02 23:16:02,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 80. [2024-11-02 23:16:02,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 74 states have (on average 1.2432432432432432) internal successors, (92), 74 states have internal predecessors, (92), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 23:16:02,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 98 transitions. [2024-11-02 23:16:02,240 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 98 transitions. Word has length 26 [2024-11-02 23:16:02,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:16:02,240 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 98 transitions. [2024-11-02 23:16:02,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:16:02,241 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 98 transitions. [2024-11-02 23:16:02,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-02 23:16:02,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:16:02,241 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:16:02,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-02 23:16:02,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:02,442 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:16:02,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:16:02,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1371826968, now seen corresponding path program 1 times [2024-11-02 23:16:02,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:16:02,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951793837] [2024-11-02 23:16:02,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:16:02,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:02,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:16:02,444 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 23:16:02,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-02 23:16:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:16:02,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-02 23:16:02,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:16:04,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:04,611 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:16:07,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:07,650 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:16:07,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951793837] [2024-11-02 23:16:07,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [951793837] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:16:07,650 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:16:07,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 13 [2024-11-02 23:16:07,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730198020] [2024-11-02 23:16:07,650 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:16:07,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-02 23:16:07,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:16:07,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-02 23:16:07,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-02 23:16:07,652 INFO L87 Difference]: Start difference. First operand 80 states and 98 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 13 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:16:11,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:16:11,753 INFO L93 Difference]: Finished difference Result 89 states and 106 transitions. [2024-11-02 23:16:11,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-02 23:16:11,757 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 13 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-02 23:16:11,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:16:11,759 INFO L225 Difference]: With dead ends: 89 [2024-11-02 23:16:11,760 INFO L226 Difference]: Without dead ends: 80 [2024-11-02 23:16:11,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2024-11-02 23:16:11,761 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 86 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-02 23:16:11,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 789 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-02 23:16:11,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-02 23:16:11,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-02 23:16:11,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 74 states have internal predecessors, (91), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 23:16:11,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 97 transitions. [2024-11-02 23:16:11,766 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 97 transitions. Word has length 28 [2024-11-02 23:16:11,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:16:11,766 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 97 transitions. [2024-11-02 23:16:11,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 13 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:16:11,766 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 97 transitions. [2024-11-02 23:16:11,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-02 23:16:11,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:16:11,767 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:16:11,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-02 23:16:11,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:11,967 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:16:11,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:16:11,968 INFO L85 PathProgramCache]: Analyzing trace with hash 544560647, now seen corresponding path program 1 times [2024-11-02 23:16:11,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:16:11,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [263201441] [2024-11-02 23:16:11,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:16:11,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:11,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:16:11,969 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 23:16:11,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-02 23:16:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:16:12,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-02 23:16:12,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:16:12,289 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 [2024-11-02 23:16:12,314 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 29 treesize of output 13 [2024-11-02 23:16:13,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:13,778 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:16:16,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:16,246 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:16:16,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [263201441] [2024-11-02 23:16:16,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [263201441] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:16:16,246 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:16:16,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 9] imperfect sequences [] total 14 [2024-11-02 23:16:16,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35822554] [2024-11-02 23:16:16,247 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:16:16,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-02 23:16:16,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:16:16,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-02 23:16:16,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-02 23:16:16,248 INFO L87 Difference]: Start difference. First operand 80 states and 97 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:16:19,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:16:19,315 INFO L93 Difference]: Finished difference Result 88 states and 104 transitions. [2024-11-02 23:16:19,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 23:16:19,316 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-02 23:16:19,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:16:19,318 INFO L225 Difference]: With dead ends: 88 [2024-11-02 23:16:19,318 INFO L226 Difference]: Without dead ends: 79 [2024-11-02 23:16:19,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2024-11-02 23:16:19,319 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 162 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-02 23:16:19,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 648 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-02 23:16:19,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-02 23:16:19,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2024-11-02 23:16:19,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 72 states have (on average 1.2222222222222223) internal successors, (88), 72 states have internal predecessors, (88), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 23:16:19,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 94 transitions. [2024-11-02 23:16:19,334 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 94 transitions. Word has length 29 [2024-11-02 23:16:19,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:16:19,334 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 94 transitions. [2024-11-02 23:16:19,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:16:19,335 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 94 transitions. [2024-11-02 23:16:19,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-02 23:16:19,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:16:19,335 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:16:19,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-02 23:16:19,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:19,536 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:16:19,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:16:19,536 INFO L85 PathProgramCache]: Analyzing trace with hash -398667006, now seen corresponding path program 1 times [2024-11-02 23:16:19,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:16:19,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1601381831] [2024-11-02 23:16:19,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:16:19,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:19,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:16:19,538 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 23:16:19,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-02 23:16:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:16:19,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 23:16:19,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:16:20,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:20,309 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:16:20,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:20,684 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:16:20,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1601381831] [2024-11-02 23:16:20,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1601381831] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:16:20,685 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:16:20,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2024-11-02 23:16:20,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301726385] [2024-11-02 23:16:20,685 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:16:20,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 23:16:20,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:16:20,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 23:16:20,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-02 23:16:20,686 INFO L87 Difference]: Start difference. First operand 78 states and 94 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:16:22,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:16:22,397 INFO L93 Difference]: Finished difference Result 88 states and 104 transitions. [2024-11-02 23:16:22,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 23:16:22,398 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2024-11-02 23:16:22,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:16:22,398 INFO L225 Difference]: With dead ends: 88 [2024-11-02 23:16:22,398 INFO L226 Difference]: Without dead ends: 79 [2024-11-02 23:16:22,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-02 23:16:22,399 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 11 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-02 23:16:22,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 382 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-02 23:16:22,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-02 23:16:22,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2024-11-02 23:16:22,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 72 states have (on average 1.2083333333333333) internal successors, (87), 72 states have internal predecessors, (87), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 23:16:22,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 93 transitions. [2024-11-02 23:16:22,405 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 93 transitions. Word has length 32 [2024-11-02 23:16:22,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:16:22,405 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 93 transitions. [2024-11-02 23:16:22,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:16:22,405 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 93 transitions. [2024-11-02 23:16:22,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-02 23:16:22,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:16:22,405 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:16:22,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-02 23:16:22,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:22,606 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:16:22,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:16:22,606 INFO L85 PathProgramCache]: Analyzing trace with hash 477955431, now seen corresponding path program 1 times [2024-11-02 23:16:22,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:16:22,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279276098] [2024-11-02 23:16:22,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:16:22,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:22,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:16:22,608 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 23:16:22,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-02 23:16:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:16:22,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 23:16:22,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:16:23,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:23,236 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:16:23,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:23,497 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:16:23,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279276098] [2024-11-02 23:16:23,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1279276098] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:16:23,497 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:16:23,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2024-11-02 23:16:23,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211643206] [2024-11-02 23:16:23,498 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:16:23,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 23:16:23,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:16:23,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 23:16:23,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-02 23:16:23,499 INFO L87 Difference]: Start difference. First operand 78 states and 93 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:16:24,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:16:24,077 INFO L93 Difference]: Finished difference Result 88 states and 103 transitions. [2024-11-02 23:16:24,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 23:16:24,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-11-02 23:16:24,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:16:24,078 INFO L225 Difference]: With dead ends: 88 [2024-11-02 23:16:24,078 INFO L226 Difference]: Without dead ends: 79 [2024-11-02 23:16:24,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-02 23:16:24,083 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 18 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-02 23:16:24,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 235 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-02 23:16:24,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-02 23:16:24,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2024-11-02 23:16:24,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 72 states have (on average 1.1944444444444444) internal successors, (86), 72 states have internal predecessors, (86), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 23:16:24,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 92 transitions. [2024-11-02 23:16:24,093 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 92 transitions. Word has length 34 [2024-11-02 23:16:24,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:16:24,093 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 92 transitions. [2024-11-02 23:16:24,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:16:24,093 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 92 transitions. [2024-11-02 23:16:24,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-02 23:16:24,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:16:24,094 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:16:24,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-02 23:16:24,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:24,294 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:16:24,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:16:24,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1982834222, now seen corresponding path program 1 times [2024-11-02 23:16:24,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:16:24,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906789996] [2024-11-02 23:16:24,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:16:24,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:24,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:16:24,297 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 23:16:24,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-02 23:16:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:16:24,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-02 23:16:24,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:16:26,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:26,890 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:16:28,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:28,225 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:16:28,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906789996] [2024-11-02 23:16:28,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [906789996] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:16:28,225 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:16:28,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 6] imperfect sequences [] total 12 [2024-11-02 23:16:28,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011644359] [2024-11-02 23:16:28,225 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:16:28,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-02 23:16:28,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:16:28,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-02 23:16:28,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-02 23:16:28,230 INFO L87 Difference]: Start difference. First operand 78 states and 92 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:16:29,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:16:29,259 INFO L93 Difference]: Finished difference Result 98 states and 114 transitions. [2024-11-02 23:16:29,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 23:16:29,260 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2024-11-02 23:16:29,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:16:29,261 INFO L225 Difference]: With dead ends: 98 [2024-11-02 23:16:29,261 INFO L226 Difference]: Without dead ends: 78 [2024-11-02 23:16:29,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-02 23:16:29,261 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 1 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-02 23:16:29,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 610 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-02 23:16:29,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-02 23:16:29,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-02 23:16:29,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 72 states have (on average 1.1805555555555556) internal successors, (85), 72 states have internal predecessors, (85), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 23:16:29,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 91 transitions. [2024-11-02 23:16:29,275 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 91 transitions. Word has length 35 [2024-11-02 23:16:29,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:16:29,275 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 91 transitions. [2024-11-02 23:16:29,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:16:29,275 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 91 transitions. [2024-11-02 23:16:29,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-02 23:16:29,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:16:29,276 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:16:29,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-02 23:16:29,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:29,476 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:16:29,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:16:29,477 INFO L85 PathProgramCache]: Analyzing trace with hash -912555255, now seen corresponding path program 1 times [2024-11-02 23:16:29,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:16:29,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1312047996] [2024-11-02 23:16:29,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:16:29,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:29,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:16:29,479 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 23:16:29,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-02 23:16:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:16:29,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-02 23:16:29,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:16:30,131 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 [2024-11-02 23:16:30,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-02 23:16:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:32,594 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:16:36,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:36,754 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:16:36,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1312047996] [2024-11-02 23:16:36,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1312047996] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:16:36,754 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:16:36,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 17 [2024-11-02 23:16:36,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153708742] [2024-11-02 23:16:36,754 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:16:36,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-02 23:16:36,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:16:36,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-02 23:16:36,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-02 23:16:36,756 INFO L87 Difference]: Start difference. First operand 78 states and 91 transitions. Second operand has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-02 23:16:39,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:16:39,067 INFO L93 Difference]: Finished difference Result 78 states and 91 transitions. [2024-11-02 23:16:39,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-02 23:16:39,068 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 55 [2024-11-02 23:16:39,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:16:39,068 INFO L225 Difference]: With dead ends: 78 [2024-11-02 23:16:39,068 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 23:16:39,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2024-11-02 23:16:39,069 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 41 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-02 23:16:39,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 95 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-02 23:16:39,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 23:16:39,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 23:16:39,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 23:16:39,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 23:16:39,070 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2024-11-02 23:16:39,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:16:39,070 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 23:16:39,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-02 23:16:39,070 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 23:16:39,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 23:16:39,072 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 23:16:39,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-02 23:16:39,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:39,276 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:16:39,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 23:16:40,306 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 23:16:40,324 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanhi_atan by function fabs_float [2024-11-02 23:16:40,324 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanlo_atan by function fabs_float [2024-11-02 23:16:40,324 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable aT_atan by function fabs_float [2024-11-02 23:16:40,327 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanhi_atan by function atan_float [2024-11-02 23:16:40,327 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanlo_atan by function atan_float [2024-11-02 23:16:40,327 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable aT_atan by function atan_float [2024-11-02 23:16:40,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:16:40 BoogieIcfgContainer [2024-11-02 23:16:40,328 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 23:16:40,328 INFO L158 Benchmark]: Toolchain (without parser) took 94549.63ms. Allocated memory is still 369.1MB. Free memory was 330.5MB in the beginning and 122.2MB in the end (delta: 208.3MB). Peak memory consumption was 209.3MB. Max. memory is 8.0GB. [2024-11-02 23:16:40,328 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 205.5MB. Free memory is still 151.6MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-02 23:16:40,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.65ms. Allocated memory is still 369.1MB. Free memory was 330.5MB in the beginning and 312.7MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2024-11-02 23:16:40,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.67ms. Allocated memory is still 369.1MB. Free memory was 312.7MB in the beginning and 310.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 23:16:40,329 INFO L158 Benchmark]: Boogie Preprocessor took 65.72ms. Allocated memory is still 369.1MB. Free memory was 310.0MB in the beginning and 304.3MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2024-11-02 23:16:40,329 INFO L158 Benchmark]: RCFGBuilder took 19590.77ms. Allocated memory is still 369.1MB. Free memory was 303.8MB in the beginning and 324.4MB in the end (delta: -20.7MB). Peak memory consumption was 38.0MB. Max. memory is 8.0GB. [2024-11-02 23:16:40,329 INFO L158 Benchmark]: TraceAbstraction took 74538.82ms. Allocated memory is still 369.1MB. Free memory was 323.9MB in the beginning and 122.2MB in the end (delta: 201.7MB). Peak memory consumption was 201.7MB. Max. memory is 8.0GB. [2024-11-02 23:16:40,330 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 205.5MB. Free memory is still 151.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 309.65ms. Allocated memory is still 369.1MB. Free memory was 330.5MB in the beginning and 312.7MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.67ms. Allocated memory is still 369.1MB. Free memory was 312.7MB in the beginning and 310.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 65.72ms. Allocated memory is still 369.1MB. Free memory was 310.0MB in the beginning and 304.3MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 19590.77ms. Allocated memory is still 369.1MB. Free memory was 303.8MB in the beginning and 324.4MB in the end (delta: -20.7MB). Peak memory consumption was 38.0MB. Max. memory is 8.0GB. * TraceAbstraction took 74538.82ms. Allocated memory is still 369.1MB. Free memory was 323.9MB in the beginning and 122.2MB in the end (delta: 201.7MB). Peak memory consumption was 201.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanhi_atan by function fabs_float - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanlo_atan by function fabs_float - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable aT_atan by function fabs_float - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanhi_atan by function atan_float - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable atanlo_atan by function atan_float - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable aT_atan by function atan_float * 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 - PositiveResult [Line: 257]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 73.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 26.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 982 SdHoareTripleChecker+Valid, 16.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 976 mSDsluCounter, 5329 SdHoareTripleChecker+Invalid, 16.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4404 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 666 IncrementalHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 925 mSDtfsCounter, 666 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 652 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 33.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=0, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 33 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 42.4s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 616 ConstructedInterpolants, 188 QuantifiedInterpolants, 5019 SizeOfPredicates, 60 NumberOfNonLiveVariables, 1907 ConjunctsInSsa, 122 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 232]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 220]: Loop Invariant Derived loop invariant: null - ProcedureContractResult [Line: 14]: Procedure Contract for fabs_float Derived contract for procedure fabs_float. Requires: 0 Ensures: (0 && ((((((((one_atan == \old(one_atan)) && (huge_atan == \old(huge_atan))) && (pi_o_4 == \old(pi_o_4))) && (pi_o_2 == \old(pi_o_2))) && (pi == \old(pi))) && (tiny_atan2 == \old(tiny_atan2))) && (zero_atan2 == \old(zero_atan2))) && (pi_lo_atan2 == \old(pi_lo_atan2)))) - ProcedureContractResult [Line: 53]: Procedure Contract for atan_float Derived contract for procedure atan_float. Requires: 0 Ensures: (0 && ((((((((one_atan == \old(one_atan)) && (huge_atan == \old(huge_atan))) && (pi_o_4 == \old(pi_o_4))) && (pi_o_2 == \old(pi_o_2))) && (pi == \old(pi))) && (tiny_atan2 == \old(tiny_atan2))) && (zero_atan2 == \old(zero_atan2))) && (pi_lo_atan2 == \old(pi_lo_atan2)))) RESULT: Ultimate proved your program to be correct! [2024-11-02 23:16:40,543 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-11-02 23:16:40,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...