/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 'mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0833.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 09:25:59,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 09:25:59,731 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 09:25:59,738 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 09:25:59,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 09:25:59,777 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 09:25:59,780 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 09:25:59,781 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 09:25:59,782 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 09:25:59,783 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 09:25:59,784 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 09:25:59,784 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 09:25:59,785 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 09:25:59,787 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 09:25:59,787 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 09:25:59,788 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 09:25:59,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 09:25:59,790 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 09:25:59,790 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 09:25:59,790 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 09:25:59,791 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 09:25:59,791 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 09:25:59,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 09:25:59,791 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 09:25:59,792 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 09:25:59,792 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 09:25:59,792 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 09:25:59,792 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 09:25:59,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 09:25:59,793 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 09:25:59,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 09:25:59,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 09:25:59,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 09:25:59,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 09:25:59,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 09:25:59,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 09:25:59,794 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 09:25:59,794 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 09:25:59,795 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 09:25:59,795 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 09:25:59,795 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 09:25:59,796 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 09:25:59,796 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 09:25:59,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 09:25:59,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:26:00,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 09:26:00,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 09:26:00,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 09:26:00,108 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 09:26:00,109 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 09:26:00,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0833.c [2024-11-03 09:26:01,626 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 09:26:01,821 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 09:26:01,822 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0833.c [2024-11-03 09:26:01,833 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1729a6b7/bb4bf1160f2044bca5e44b46120fd1d5/FLAG38a8ecdc2 [2024-11-03 09:26:02,197 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1729a6b7/bb4bf1160f2044bca5e44b46120fd1d5 [2024-11-03 09:26:02,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 09:26:02,202 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 09:26:02,203 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 09:26:02,203 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 09:26:02,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 09:26:02,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 09:26:02" (1/1) ... [2024-11-03 09:26:02,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@652bd82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:26:02, skipping insertion in model container [2024-11-03 09:26:02,215 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 09:26:02" (1/1) ... [2024-11-03 09:26:02,249 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 09:26:02,461 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/double_req_bl_0833.c[4075,4088] [2024-11-03 09:26:02,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 09:26:02,491 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 09:26:02,561 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/double_req_bl_0833.c[4075,4088] [2024-11-03 09:26:02,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 09:26:02,597 INFO L204 MainTranslator]: Completed translation [2024-11-03 09:26:02,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:26:02 WrapperNode [2024-11-03 09:26:02,600 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 09:26:02,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 09:26:02,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 09:26:02,602 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 09:26:02,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:26:02" (1/1) ... [2024-11-03 09:26:02,631 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:26:02" (1/1) ... [2024-11-03 09:26:02,673 INFO L138 Inliner]: procedures = 21, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 206 [2024-11-03 09:26:02,674 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 09:26:02,675 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 09:26:02,675 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 09:26:02,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 09:26:02,686 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:26:02" (1/1) ... [2024-11-03 09:26:02,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:26:02" (1/1) ... [2024-11-03 09:26:02,698 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:26:02" (1/1) ... [2024-11-03 09:26:02,730 INFO L175 MemorySlicer]: Split 29 memory accesses to 11 slices as follows [2, 2, 2, 3, 4, 4, 2, 2, 2, 3, 3]. 14 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 0, 0, 2, 2, 2, 0, 0, 0, 0, 0]. The 9 writes are split as follows [0, 1, 1, 0, 0, 0, 1, 1, 1, 2, 2]. [2024-11-03 09:26:02,730 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:26:02" (1/1) ... [2024-11-03 09:26:02,731 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:26:02" (1/1) ... [2024-11-03 09:26:02,761 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:26:02" (1/1) ... [2024-11-03 09:26:02,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:26:02" (1/1) ... [2024-11-03 09:26:02,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:26:02" (1/1) ... [2024-11-03 09:26:02,779 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:26:02" (1/1) ... [2024-11-03 09:26:02,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 09:26:02,797 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 09:26:02,797 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 09:26:02,797 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 09:26:02,798 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:26:02" (1/1) ... [2024-11-03 09:26:02,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 09:26:02,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 09:26:02,844 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) [2024-11-03 09:26:02,847 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 [2024-11-03 09:26:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 09:26:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-03 09:26:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-03 09:26:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-03 09:26:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-03 09:26:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-03 09:26:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-11-03 09:26:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2024-11-03 09:26:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#7 [2024-11-03 09:26:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#8 [2024-11-03 09:26:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#9 [2024-11-03 09:26:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#10 [2024-11-03 09:26:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-03 09:26:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-03 09:26:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-03 09:26:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-03 09:26:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-03 09:26:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-11-03 09:26:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2024-11-03 09:26:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#7 [2024-11-03 09:26:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#8 [2024-11-03 09:26:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#9 [2024-11-03 09:26:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#10 [2024-11-03 09:26:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 09:26:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-03 09:26:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-03 09:26:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-03 09:26:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-03 09:26:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-03 09:26:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-03 09:26:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-03 09:26:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-03 09:26:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-03 09:26:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-03 09:26:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-03 09:26:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-11-03 09:26:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-11-03 09:26:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-11-03 09:26:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-11-03 09:26:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-11-03 09:26:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2024-11-03 09:26:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2024-11-03 09:26:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#7 [2024-11-03 09:26:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#8 [2024-11-03 09:26:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#9 [2024-11-03 09:26:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#10 [2024-11-03 09:26:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-03 09:26:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-03 09:26:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-03 09:26:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-03 09:26:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-03 09:26:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-03 09:26:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-03 09:26:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-03 09:26:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-03 09:26:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-03 09:26:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-03 09:26:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 09:26:02,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 09:26:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-03 09:26:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-03 09:26:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-03 09:26:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-03 09:26:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-03 09:26:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-03 09:26:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-03 09:26:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-03 09:26:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-03 09:26:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-03 09:26:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-03 09:26:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-03 09:26:03,073 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 09:26:03,075 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 09:26:21,995 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-03 09:26:21,996 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 09:26:22,007 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 09:26:22,008 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-03 09:26:22,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 09:26:22 BoogieIcfgContainer [2024-11-03 09:26:22,008 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 09:26:22,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 09:26:22,011 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 09:26:22,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 09:26:22,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 09:26:02" (1/3) ... [2024-11-03 09:26:22,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4086cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 09:26:22, skipping insertion in model container [2024-11-03 09:26:22,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:26:02" (2/3) ... [2024-11-03 09:26:22,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4086cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 09:26:22, skipping insertion in model container [2024-11-03 09:26:22,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 09:26:22" (3/3) ... [2024-11-03 09:26:22,020 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0833.c [2024-11-03 09:26:22,037 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 09:26:22,037 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 09:26:22,098 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 09:26:22,107 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;@3125995d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 09:26:22,107 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 09:26:22,113 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.7) internal successors, (68), 41 states have internal predecessors, (68), 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) [2024-11-03 09:26:22,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-03 09:26:22,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:26:22,121 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 09:26:22,122 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:26:22,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:26:22,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1929352667, now seen corresponding path program 1 times [2024-11-03 09:26:22,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:26:22,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [686970659] [2024-11-03 09:26:22,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:26:22,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:26:22,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:26:22,148 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:26:22,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-03 09:26:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:26:22,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 09:26:22,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:26:22,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 09:26:22,647 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:26:22,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 09:26:22,657 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:26:22,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [686970659] [2024-11-03 09:26:22,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [686970659] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 09:26:22,658 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 09:26:22,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 09:26:22,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497673994] [2024-11-03 09:26:22,661 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 09:26:22,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 09:26:22,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:26:22,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 09:26:22,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 09:26:22,686 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.7) internal successors, (68), 41 states have internal predecessors, (68), 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) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2024-11-03 09:26:22,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:26:22,701 INFO L93 Difference]: Finished difference Result 82 states and 134 transitions. [2024-11-03 09:26:22,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 09:26:22,703 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2024-11-03 09:26:22,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:26:22,710 INFO L225 Difference]: With dead ends: 82 [2024-11-03 09:26:22,711 INFO L226 Difference]: Without dead ends: 39 [2024-11-03 09:26:22,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 09:26:22,717 INFO L432 NwaCegarLoop]: 53 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, 53 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 [2024-11-03 09:26:22,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 09:26:22,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-03 09:26:22,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-03 09:26:22,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 38 states have internal predecessors, (50), 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) [2024-11-03 09:26:22,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2024-11-03 09:26:22,752 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 11 [2024-11-03 09:26:22,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:26:22,752 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2024-11-03 09:26:22,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2024-11-03 09:26:22,753 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2024-11-03 09:26:22,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-03 09:26:22,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:26:22,756 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 09:26:22,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-03 09:26:22,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:26:22,959 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:26:22,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:26:22,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1309431742, now seen corresponding path program 1 times [2024-11-03 09:26:22,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:26:22,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659203020] [2024-11-03 09:26:22,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:26:22,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:26:22,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:26:22,963 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:26:22,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-03 09:26:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:26:23,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 09:26:23,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:26:24,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 09:26:24,907 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:26:26,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 09:26:26,449 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:26:26,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659203020] [2024-11-03 09:26:26,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1659203020] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 09:26:26,450 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 09:26:26,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2024-11-03 09:26:26,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896365760] [2024-11-03 09:26:26,450 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 09:26:26,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 09:26:26,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:26:26,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 09:26:26,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-03 09:26:26,453 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2024-11-03 09:26:28,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:26:28,426 INFO L93 Difference]: Finished difference Result 48 states and 59 transitions. [2024-11-03 09:26:28,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 09:26:28,427 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 12 [2024-11-03 09:26:28,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:26:28,427 INFO L225 Difference]: With dead ends: 48 [2024-11-03 09:26:28,428 INFO L226 Difference]: Without dead ends: 19 [2024-11-03 09:26:28,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-03 09:26:28,429 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 13 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-03 09:26:28,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 51 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-03 09:26:28,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-03 09:26:28,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-03 09:26:28,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 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) [2024-11-03 09:26:28,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2024-11-03 09:26:28,433 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 12 [2024-11-03 09:26:28,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:26:28,434 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2024-11-03 09:26:28,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2024-11-03 09:26:28,434 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2024-11-03 09:26:28,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-03 09:26:28,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:26:28,435 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 09:26:28,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-03 09:26:28,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:26:28,636 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:26:28,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:26:28,637 INFO L85 PathProgramCache]: Analyzing trace with hash -691750390, now seen corresponding path program 1 times [2024-11-03 09:26:28,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:26:28,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714054737] [2024-11-03 09:26:28,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:26:28,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:26:28,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:26:28,641 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:26:28,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-03 09:26:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:26:28,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-03 09:26:28,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:26:31,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2024-11-03 09:26:31,161 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 16 treesize of output 8 [2024-11-03 09:26:32,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 09:26:32,268 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:26:34,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 09:26:34,815 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:26:34,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1714054737] [2024-11-03 09:26:34,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1714054737] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 09:26:34,816 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 09:26:34,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2024-11-03 09:26:34,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067208911] [2024-11-03 09:26:34,816 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 09:26:34,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 09:26:34,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:26:34,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 09:26:34,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-03 09:26:34,820 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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) [2024-11-03 09:26:36,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:26:36,475 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2024-11-03 09:26:36,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 09:26:36,476 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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 14 [2024-11-03 09:26:36,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:26:36,476 INFO L225 Difference]: With dead ends: 28 [2024-11-03 09:26:36,477 INFO L226 Difference]: Without dead ends: 19 [2024-11-03 09:26:36,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-03 09:26:36,478 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-03 09:26:36,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 53 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-03 09:26:36,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-03 09:26:36,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-03 09:26:36,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 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) [2024-11-03 09:26:36,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2024-11-03 09:26:36,481 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 14 [2024-11-03 09:26:36,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:26:36,481 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2024-11-03 09:26:36,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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) [2024-11-03 09:26:36,482 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2024-11-03 09:26:36,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-03 09:26:36,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:26:36,482 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 09:26:36,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-03 09:26:36,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:26:36,687 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:26:36,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:26:36,688 INFO L85 PathProgramCache]: Analyzing trace with hash -689903348, now seen corresponding path program 1 times [2024-11-03 09:26:36,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:26:36,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [66233047] [2024-11-03 09:26:36,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:26:36,688 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:26:36,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:26:36,692 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:26:36,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-03 09:26:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:26:36,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-03 09:26:36,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:26:40,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 09:26:40,109 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:26:43,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 09:26:43,169 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:26:43,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [66233047] [2024-11-03 09:26:43,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [66233047] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 09:26:43,169 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 09:26:43,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2024-11-03 09:26:43,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255291455] [2024-11-03 09:26:43,169 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 09:26:43,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-03 09:26:43,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:26:43,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-03 09:26:43,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-03 09:26:43,171 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 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) [2024-11-03 09:26:44,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:26:44,551 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2024-11-03 09:26:44,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-03 09:26:44,552 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 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 14 [2024-11-03 09:26:44,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:26:44,552 INFO L225 Difference]: With dead ends: 22 [2024-11-03 09:26:44,552 INFO L226 Difference]: Without dead ends: 19 [2024-11-03 09:26:44,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-03 09:26:44,553 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-03 09:26:44,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-03 09:26:44,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-03 09:26:44,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-03 09:26:44,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0) internal successors, (18), 18 states have internal predecessors, (18), 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) [2024-11-03 09:26:44,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2024-11-03 09:26:44,558 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 14 [2024-11-03 09:26:44,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:26:44,559 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2024-11-03 09:26:44,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 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) [2024-11-03 09:26:44,559 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2024-11-03 09:26:44,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-03 09:26:44,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 09:26:44,560 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 09:26:44,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-03 09:26:44,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:26:44,761 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 09:26:44,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 09:26:44,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1708929311, now seen corresponding path program 1 times [2024-11-03 09:26:44,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 09:26:44,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301205033] [2024-11-03 09:26:44,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 09:26:44,762 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:26:44,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 09:26:44,764 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 09:26:44,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-03 09:26:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 09:26:44,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-03 09:26:44,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 09:26:50,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 09:26:50,221 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 09:26:57,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 09:26:57,721 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 09:26:57,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301205033] [2024-11-03 09:26:57,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1301205033] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 09:26:57,721 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 09:26:57,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 18 [2024-11-03 09:26:57,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635214875] [2024-11-03 09:26:57,722 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 09:26:57,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-03 09:26:57,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 09:26:57,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-03 09:26:57,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2024-11-03 09:26:57,723 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 18 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 18 states have internal predecessors, (32), 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) [2024-11-03 09:27:01,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 09:27:01,941 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2024-11-03 09:27:01,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-03 09:27:01,942 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 18 states have internal predecessors, (32), 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 [2024-11-03 09:27:01,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 09:27:01,942 INFO L225 Difference]: With dead ends: 19 [2024-11-03 09:27:01,942 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 09:27:01,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-03 09:27:01,943 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-03 09:27:01,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 66 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-03 09:27:01,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 09:27:01,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 09:27:01,944 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) [2024-11-03 09:27:01,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 09:27:01,945 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2024-11-03 09:27:01,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 09:27:01,945 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 09:27:01,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 18 states have internal predecessors, (32), 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) [2024-11-03 09:27:01,945 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 09:27:01,945 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 09:27:01,947 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 09:27:01,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-03 09:27:02,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 09:27:02,151 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-03 09:27:02,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 09:27:02,946 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 09:27:02,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 09:27:02 BoogieIcfgContainer [2024-11-03 09:27:02,957 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 09:27:02,958 INFO L158 Benchmark]: Toolchain (without parser) took 60756.45ms. Allocated memory is still 324.0MB. Free memory was 266.1MB in the beginning and 141.0MB in the end (delta: 125.1MB). Peak memory consumption was 125.6MB. Max. memory is 8.0GB. [2024-11-03 09:27:02,958 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 152.3MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 09:27:02,958 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.58ms. Allocated memory is still 324.0MB. Free memory was 265.6MB in the beginning and 249.9MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2024-11-03 09:27:02,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.36ms. Allocated memory is still 324.0MB. Free memory was 249.9MB in the beginning and 247.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 09:27:02,959 INFO L158 Benchmark]: Boogie Preprocessor took 121.83ms. Allocated memory is still 324.0MB. Free memory was 247.8MB in the beginning and 243.1MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2024-11-03 09:27:02,959 INFO L158 Benchmark]: RCFGBuilder took 19211.25ms. Allocated memory is still 324.0MB. Free memory was 243.1MB in the beginning and 214.2MB in the end (delta: 28.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2024-11-03 09:27:02,959 INFO L158 Benchmark]: TraceAbstraction took 40946.91ms. Allocated memory is still 324.0MB. Free memory was 213.7MB in the beginning and 141.0MB in the end (delta: 72.7MB). Peak memory consumption was 73.2MB. Max. memory is 8.0GB. [2024-11-03 09:27:02,961 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 152.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 397.58ms. Allocated memory is still 324.0MB. Free memory was 265.6MB in the beginning and 249.9MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 72.36ms. Allocated memory is still 324.0MB. Free memory was 249.9MB in the beginning and 247.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 121.83ms. Allocated memory is still 324.0MB. Free memory was 247.8MB in the beginning and 243.1MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 19211.25ms. Allocated memory is still 324.0MB. Free memory was 243.1MB in the beginning and 214.2MB in the end (delta: 28.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 40946.91ms. Allocated memory is still 324.0MB. Free memory was 213.7MB in the beginning and 141.0MB in the end (delta: 72.7MB). Peak memory consumption was 73.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 155]: 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 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 40.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 6.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 293 SdHoareTripleChecker+Invalid, 6.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 195 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 203 IncrementalHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 98 mSDtfsCounter, 203 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 19.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 28.2s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 128 ConstructedInterpolants, 50 QuantifiedInterpolants, 1400 SizeOfPredicates, 19 NumberOfNonLiveVariables, 463 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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: 51]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-03 09:27:03,171 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 [2024-11-03 09:27:03,203 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...