/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-95.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 19:00:58,559 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 19:00:58,598 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 19:00:58,602 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 19:00:58,602 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 19:00:58,617 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 19:00:58,617 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 19:00:58,618 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 19:00:58,618 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 19:00:58,618 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 19:00:58,619 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 19:00:58,619 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 19:00:58,619 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 19:00:58,619 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 19:00:58,620 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 19:00:58,620 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 19:00:58,620 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 19:00:58,620 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 19:00:58,621 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 19:00:58,621 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 19:00:58,621 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 19:00:58,621 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 19:00:58,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 19:00:58,622 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 19:00:58,622 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 19:00:58,622 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 19:00:58,622 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 19:00:58,622 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 19:00:58,623 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 19:00:58,623 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 19:00:58,623 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 19:00:58,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 19:00:58,623 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 19:00:58,623 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 19:00:58,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 19:00:58,624 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 19:00:58,624 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 19:00:58,624 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 19:00:58,624 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 19:00:58,624 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 19:00:58,625 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 19:00:58,636 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 19:00:58,636 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 19:00:58,636 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 19:00:58,637 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 19:00:58,637 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 19:00:58,637 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 19:00:58,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 19:00:58,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 19:00:58,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 19:00:58,798 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 19:00:58,798 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 19:00:58,799 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-95.i [2023-12-24 19:00:59,853 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 19:01:00,003 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 19:01:00,003 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-95.i [2023-12-24 19:01:00,016 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fb7a0aa3/4f054736ab304d86835bb69fcfdfdf56/FLAG0b6fe2483 [2023-12-24 19:01:00,026 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fb7a0aa3/4f054736ab304d86835bb69fcfdfdf56 [2023-12-24 19:01:00,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 19:01:00,029 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 19:01:00,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 19:01:00,030 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 19:01:00,033 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 19:01:00,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 07:01:00" (1/1) ... [2023-12-24 19:01:00,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3d9a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:01:00, skipping insertion in model container [2023-12-24 19:01:00,034 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 07:01:00" (1/1) ... [2023-12-24 19:01:00,057 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 19:01:00,146 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-95.i[916,929] [2023-12-24 19:01:00,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 19:01:00,199 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 19:01:00,213 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-95.i[916,929] [2023-12-24 19:01:00,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 19:01:00,254 INFO L206 MainTranslator]: Completed translation [2023-12-24 19:01:00,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:01:00 WrapperNode [2023-12-24 19:01:00,255 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 19:01:00,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 19:01:00,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 19:01:00,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 19:01:00,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:01:00" (1/1) ... [2023-12-24 19:01:00,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:01:00" (1/1) ... [2023-12-24 19:01:00,300 INFO L138 Inliner]: procedures = 36, calls = 149, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 442 [2023-12-24 19:01:00,300 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 19:01:00,301 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 19:01:00,301 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 19:01:00,301 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 19:01:00,309 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:01:00" (1/1) ... [2023-12-24 19:01:00,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:01:00" (1/1) ... [2023-12-24 19:01:00,324 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:01:00" (1/1) ... [2023-12-24 19:01:00,337 INFO L175 MemorySlicer]: Split 121 memory accesses to 2 slices as follows [2, 119]. 98 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 14]. The 16 writes are split as follows [0, 16]. [2023-12-24 19:01:00,337 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:01:00" (1/1) ... [2023-12-24 19:01:00,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:01:00" (1/1) ... [2023-12-24 19:01:00,380 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:01:00" (1/1) ... [2023-12-24 19:01:00,383 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:01:00" (1/1) ... [2023-12-24 19:01:00,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:01:00" (1/1) ... [2023-12-24 19:01:00,387 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:01:00" (1/1) ... [2023-12-24 19:01:00,391 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 19:01:00,392 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 19:01:00,392 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 19:01:00,392 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 19:01:00,393 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:01:00" (1/1) ... [2023-12-24 19:01:00,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 19:01:00,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 19:01:00,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-24 19:01:00,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-24 19:01:00,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 19:01:00,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-24 19:01:00,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-24 19:01:00,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2023-12-24 19:01:00,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2023-12-24 19:01:00,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 19:01:00,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-24 19:01:00,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-24 19:01:00,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-24 19:01:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-12-24 19:01:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-12-24 19:01:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-24 19:01:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-24 19:01:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2023-12-24 19:01:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2023-12-24 19:01:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-12-24 19:01:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-12-24 19:01:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2023-12-24 19:01:00,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2023-12-24 19:01:00,460 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 19:01:00,460 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 19:01:00,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 19:01:00,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 19:01:00,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-24 19:01:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-24 19:01:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2023-12-24 19:01:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2023-12-24 19:01:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-24 19:01:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-24 19:01:00,572 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 19:01:00,574 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 19:01:01,846 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 19:01:01,877 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 19:01:01,877 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 19:01:01,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 07:01:01 BoogieIcfgContainer [2023-12-24 19:01:01,878 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 19:01:01,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 19:01:01,879 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 19:01:01,881 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 19:01:01,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 07:01:00" (1/3) ... [2023-12-24 19:01:01,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c55b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 07:01:01, skipping insertion in model container [2023-12-24 19:01:01,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:01:00" (2/3) ... [2023-12-24 19:01:01,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c55b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 07:01:01, skipping insertion in model container [2023-12-24 19:01:01,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 07:01:01" (3/3) ... [2023-12-24 19:01:01,886 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-95.i [2023-12-24 19:01:01,902 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 19:01:01,902 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 19:01:01,954 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 19:01:01,964 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@38339655, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 19:01:01,964 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 19:01:01,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 77 states have (on average 1.4415584415584415) internal successors, (111), 78 states have internal predecessors, (111), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-24 19:01:01,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-24 19:01:01,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:01:01,981 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:01:01,982 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:01:01,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:01:01,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1237349138, now seen corresponding path program 1 times [2023-12-24 19:01:01,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:01:01,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700190736] [2023-12-24 19:01:01,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:01:01,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:01:01,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:01:01,999 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:01:02,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-24 19:01:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:01:02,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 19:01:02,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:01:02,441 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2023-12-24 19:01:02,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:01:02,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:01:02,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700190736] [2023-12-24 19:01:02,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700190736] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:01:02,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:01:02,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 19:01:02,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066948022] [2023-12-24 19:01:02,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:01:02,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 19:01:02,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:01:02,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 19:01:02,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 19:01:02,483 INFO L87 Difference]: Start difference. First operand has 96 states, 77 states have (on average 1.4415584415584415) internal successors, (111), 78 states have internal predecessors, (111), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-24 19:01:02,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:01:02,541 INFO L93 Difference]: Finished difference Result 189 states and 300 transitions. [2023-12-24 19:01:02,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 19:01:02,543 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 124 [2023-12-24 19:01:02,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:01:02,548 INFO L225 Difference]: With dead ends: 189 [2023-12-24 19:01:02,548 INFO L226 Difference]: Without dead ends: 94 [2023-12-24 19:01:02,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 19:01:02,553 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 19:01:02,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 19:01:02,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-24 19:01:02,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-12-24 19:01:02,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 76 states have (on average 1.3421052631578947) internal successors, (102), 76 states have internal predecessors, (102), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-24 19:01:02,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 134 transitions. [2023-12-24 19:01:02,585 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 134 transitions. Word has length 124 [2023-12-24 19:01:02,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:01:02,586 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 134 transitions. [2023-12-24 19:01:02,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-24 19:01:02,586 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 134 transitions. [2023-12-24 19:01:02,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-24 19:01:02,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:01:02,588 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:01:02,602 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 [2023-12-24 19:01:02,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:01:02,800 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:01:02,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:01:02,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1718641262, now seen corresponding path program 1 times [2023-12-24 19:01:02,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:01:02,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199959464] [2023-12-24 19:01:02,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:01:02,802 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:01:02,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:01:02,804 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:01:02,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-24 19:01:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:01:03,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 19:01:03,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:01:03,237 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-24 19:01:03,237 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:01:03,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:01:03,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199959464] [2023-12-24 19:01:03,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199959464] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:01:03,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:01:03,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 19:01:03,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703110880] [2023-12-24 19:01:03,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:01:03,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 19:01:03,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:01:03,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 19:01:03,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-24 19:01:03,240 INFO L87 Difference]: Start difference. First operand 94 states and 134 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-24 19:01:03,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:01:03,889 INFO L93 Difference]: Finished difference Result 203 states and 289 transitions. [2023-12-24 19:01:03,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-24 19:01:03,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 124 [2023-12-24 19:01:03,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:01:03,891 INFO L225 Difference]: With dead ends: 203 [2023-12-24 19:01:03,891 INFO L226 Difference]: Without dead ends: 110 [2023-12-24 19:01:03,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-24 19:01:03,893 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 23 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-24 19:01:03,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 611 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-24 19:01:03,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-12-24 19:01:03,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 100. [2023-12-24 19:01:03,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 82 states have internal predecessors, (108), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-24 19:01:03,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 140 transitions. [2023-12-24 19:01:03,902 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 140 transitions. Word has length 124 [2023-12-24 19:01:03,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:01:03,904 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 140 transitions. [2023-12-24 19:01:03,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-24 19:01:03,904 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 140 transitions. [2023-12-24 19:01:03,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-24 19:01:03,905 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:01:03,906 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:01:03,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-24 19:01:04,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:01:04,117 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:01:04,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:01:04,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1718700844, now seen corresponding path program 1 times [2023-12-24 19:01:04,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:01:04,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567972561] [2023-12-24 19:01:04,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:01:04,119 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:01:04,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:01:04,123 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:01:04,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-24 19:01:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:01:04,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 19:01:04,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:01:04,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2023-12-24 19:01:04,625 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-24 19:01:04,626 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:01:04,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:01:04,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567972561] [2023-12-24 19:01:04,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567972561] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:01:04,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:01:04,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 19:01:04,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888884612] [2023-12-24 19:01:04,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:01:04,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 19:01:04,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:01:04,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 19:01:04,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-24 19:01:04,629 INFO L87 Difference]: Start difference. First operand 100 states and 140 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-24 19:01:05,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:01:05,850 INFO L93 Difference]: Finished difference Result 205 states and 288 transitions. [2023-12-24 19:01:05,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 19:01:05,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 124 [2023-12-24 19:01:05,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:01:05,851 INFO L225 Difference]: With dead ends: 205 [2023-12-24 19:01:05,851 INFO L226 Difference]: Without dead ends: 106 [2023-12-24 19:01:05,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-24 19:01:05,853 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 146 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-24 19:01:05,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 365 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-24 19:01:05,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-12-24 19:01:05,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 100. [2023-12-24 19:01:05,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 82 states have (on average 1.3048780487804879) internal successors, (107), 82 states have internal predecessors, (107), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-24 19:01:05,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 139 transitions. [2023-12-24 19:01:05,861 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 139 transitions. Word has length 124 [2023-12-24 19:01:05,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:01:05,861 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 139 transitions. [2023-12-24 19:01:05,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-24 19:01:05,861 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 139 transitions. [2023-12-24 19:01:05,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-24 19:01:05,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:01:05,865 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:01:05,879 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 [2023-12-24 19:01:06,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:01:06,077 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:01:06,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:01:06,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1745530714, now seen corresponding path program 1 times [2023-12-24 19:01:06,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:01:06,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877337192] [2023-12-24 19:01:06,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:01:06,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:01:06,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:01:06,083 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:01:06,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-24 19:01:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:01:06,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 19:01:06,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:01:06,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2023-12-24 19:01:06,554 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-24 19:01:06,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:01:06,555 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:01:06,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877337192] [2023-12-24 19:01:06,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877337192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:01:06,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:01:06,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 19:01:06,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579904802] [2023-12-24 19:01:06,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:01:06,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 19:01:06,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:01:06,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 19:01:06,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-24 19:01:06,557 INFO L87 Difference]: Start difference. First operand 100 states and 139 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-24 19:01:07,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:01:07,988 INFO L93 Difference]: Finished difference Result 205 states and 286 transitions. [2023-12-24 19:01:07,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 19:01:07,989 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 126 [2023-12-24 19:01:07,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:01:07,990 INFO L225 Difference]: With dead ends: 205 [2023-12-24 19:01:07,990 INFO L226 Difference]: Without dead ends: 106 [2023-12-24 19:01:07,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-24 19:01:07,991 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 131 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-24 19:01:07,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 361 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-24 19:01:07,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-12-24 19:01:07,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 100. [2023-12-24 19:01:07,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 82 states have (on average 1.2926829268292683) internal successors, (106), 82 states have internal predecessors, (106), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-24 19:01:07,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 138 transitions. [2023-12-24 19:01:07,997 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 138 transitions. Word has length 126 [2023-12-24 19:01:07,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:01:07,997 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 138 transitions. [2023-12-24 19:01:07,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-24 19:01:07,998 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 138 transitions. [2023-12-24 19:01:07,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-24 19:01:07,999 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:01:07,999 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:01:08,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-24 19:01:08,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:01:08,216 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:01:08,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:01:08,216 INFO L85 PathProgramCache]: Analyzing trace with hash -293469972, now seen corresponding path program 1 times [2023-12-24 19:01:08,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:01:08,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012730270] [2023-12-24 19:01:08,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:01:08,217 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:01:08,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:01:08,240 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:01:08,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-24 19:01:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:01:08,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 19:01:08,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:01:08,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2023-12-24 19:01:08,662 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2023-12-24 19:01:08,662 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:01:08,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:01:08,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012730270] [2023-12-24 19:01:08,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012730270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:01:08,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:01:08,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 19:01:08,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965753153] [2023-12-24 19:01:08,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:01:08,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 19:01:08,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:01:08,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 19:01:08,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-24 19:01:08,664 INFO L87 Difference]: Start difference. First operand 100 states and 138 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-24 19:01:10,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:01:10,143 INFO L93 Difference]: Finished difference Result 205 states and 284 transitions. [2023-12-24 19:01:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 19:01:10,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2023-12-24 19:01:10,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:01:10,145 INFO L225 Difference]: With dead ends: 205 [2023-12-24 19:01:10,145 INFO L226 Difference]: Without dead ends: 106 [2023-12-24 19:01:10,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-24 19:01:10,146 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 125 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-24 19:01:10,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 356 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-24 19:01:10,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-12-24 19:01:10,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 100. [2023-12-24 19:01:10,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 82 states have (on average 1.2804878048780488) internal successors, (105), 82 states have internal predecessors, (105), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-24 19:01:10,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 137 transitions. [2023-12-24 19:01:10,152 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 137 transitions. Word has length 128 [2023-12-24 19:01:10,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:01:10,153 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 137 transitions. [2023-12-24 19:01:10,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-24 19:01:10,153 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 137 transitions. [2023-12-24 19:01:10,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-24 19:01:10,154 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:01:10,154 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:01:10,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-24 19:01:10,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:01:10,366 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:01:10,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:01:10,366 INFO L85 PathProgramCache]: Analyzing trace with hash 992224358, now seen corresponding path program 1 times [2023-12-24 19:01:10,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:01:10,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004629041] [2023-12-24 19:01:10,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:01:10,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:01:10,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:01:10,368 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:01:10,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-24 19:01:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:01:10,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-24 19:01:10,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:01:10,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-24 19:01:10,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-24 19:01:11,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2023-12-24 19:01:11,241 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 19:01:11,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2023-12-24 19:01:11,419 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 19:01:11,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 49 [2023-12-24 19:01:11,783 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 19:01:11,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 52 [2023-12-24 19:01:12,088 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 19:01:12,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 62 [2023-12-24 19:01:12,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 65 [2023-12-24 19:01:12,525 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 19:01:12,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 38 [2023-12-24 19:01:12,561 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 367 proven. 33 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-12-24 19:01:12,561 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 19:01:12,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:01:12,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004629041] [2023-12-24 19:01:12,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004629041] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 19:01:12,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1883021922] [2023-12-24 19:01:12,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:01:12,795 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 19:01:12,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 19:01:12,884 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 19:01:12,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-24 19:01:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:01:14,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-24 19:01:14,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:01:14,380 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 17 treesize of output 9 [2023-12-24 19:01:14,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-24 19:01:14,791 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 19:01:14,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 28 [2023-12-24 19:01:14,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 19:01:14,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 62 [2023-12-24 19:01:15,016 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 19:01:15,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 92 treesize of output 60 [2023-12-24 19:01:15,048 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-24 19:01:15,048 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:01:15,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1883021922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:01:15,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 19:01:15,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 19 [2023-12-24 19:01:15,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589731952] [2023-12-24 19:01:15,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:01:15,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 19:01:15,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:01:15,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 19:01:15,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2023-12-24 19:01:15,050 INFO L87 Difference]: Start difference. First operand 100 states and 137 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-24 19:01:18,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:01:18,390 INFO L93 Difference]: Finished difference Result 489 states and 665 transitions. [2023-12-24 19:01:18,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-24 19:01:18,392 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 130 [2023-12-24 19:01:18,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:01:18,394 INFO L225 Difference]: With dead ends: 489 [2023-12-24 19:01:18,394 INFO L226 Difference]: Without dead ends: 390 [2023-12-24 19:01:18,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=171, Invalid=821, Unknown=0, NotChecked=0, Total=992 [2023-12-24 19:01:18,395 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 460 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-24 19:01:18,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 478 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-24 19:01:18,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-12-24 19:01:18,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 320. [2023-12-24 19:01:18,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 259 states have (on average 1.2702702702702702) internal successors, (329), 261 states have internal predecessors, (329), 55 states have call successors, (55), 5 states have call predecessors, (55), 5 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2023-12-24 19:01:18,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 439 transitions. [2023-12-24 19:01:18,423 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 439 transitions. Word has length 130 [2023-12-24 19:01:18,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:01:18,423 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 439 transitions. [2023-12-24 19:01:18,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-24 19:01:18,423 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 439 transitions. [2023-12-24 19:01:18,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-24 19:01:18,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:01:18,424 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:01:18,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-24 19:01:18,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-24 19:01:18,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-24 19:01:18,844 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:01:18,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:01:18,845 INFO L85 PathProgramCache]: Analyzing trace with hash -709870901, now seen corresponding path program 1 times [2023-12-24 19:01:18,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:01:18,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367514383] [2023-12-24 19:01:18,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:01:18,846 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:01:18,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:01:18,847 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:01:18,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-24 19:01:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:01:19,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-24 19:01:19,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:01:19,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-24 19:01:19,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-24 19:01:19,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-24 19:01:19,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2023-12-24 19:01:19,739 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 19:01:19,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2023-12-24 19:01:19,891 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 19:01:19,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 39 [2023-12-24 19:01:20,069 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 19:01:20,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 39 [2023-12-24 19:01:20,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2023-12-24 19:01:20,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2023-12-24 19:01:20,277 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 19:01:20,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 28 [2023-12-24 19:01:20,302 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 327 proven. 33 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-24 19:01:20,302 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 19:01:20,393 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:01:20,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367514383] [2023-12-24 19:01:20,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [367514383] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 19:01:20,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [513679570] [2023-12-24 19:01:20,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:01:20,394 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 19:01:20,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 19:01:20,404 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 19:01:20,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-24 19:01:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:01:22,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-24 19:01:22,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:01:22,368 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 17 treesize of output 9 [2023-12-24 19:01:22,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-24 19:01:22,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2023-12-24 19:01:22,787 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 19:01:22,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2023-12-24 19:01:22,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 19:01:22,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 33 [2023-12-24 19:01:23,063 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 19:01:23,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 33 [2023-12-24 19:01:23,250 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 19:01:23,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 41 [2023-12-24 19:01:23,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 44 [2023-12-24 19:01:23,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 64 [2023-12-24 19:01:23,669 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 327 proven. 33 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-24 19:01:23,669 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 19:01:23,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [513679570] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 19:01:23,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 19:01:23,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2023-12-24 19:01:23,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414081778] [2023-12-24 19:01:23,952 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 19:01:23,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-24 19:01:23,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:01:23,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-24 19:01:23,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2023-12-24 19:01:23,954 INFO L87 Difference]: Start difference. First operand 320 states and 439 transitions. Second operand has 23 states, 21 states have (on average 5.619047619047619) internal successors, (118), 21 states have internal predecessors, (118), 10 states have call successors, (32), 8 states have call predecessors, (32), 10 states have return successors, (32), 9 states have call predecessors, (32), 10 states have call successors, (32) [2023-12-24 19:01:28,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:01:28,337 INFO L93 Difference]: Finished difference Result 515 states and 690 transitions. [2023-12-24 19:01:28,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-24 19:01:28,337 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 5.619047619047619) internal successors, (118), 21 states have internal predecessors, (118), 10 states have call successors, (32), 8 states have call predecessors, (32), 10 states have return successors, (32), 9 states have call predecessors, (32), 10 states have call successors, (32) Word has length 132 [2023-12-24 19:01:28,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:01:28,339 INFO L225 Difference]: With dead ends: 515 [2023-12-24 19:01:28,339 INFO L226 Difference]: Without dead ends: 247 [2023-12-24 19:01:28,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 286 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=636, Invalid=2334, Unknown=0, NotChecked=0, Total=2970 [2023-12-24 19:01:28,341 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 460 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-24 19:01:28,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 755 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-24 19:01:28,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-12-24 19:01:28,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 236. [2023-12-24 19:01:28,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 193 states have (on average 1.2590673575129534) internal successors, (243), 194 states have internal predecessors, (243), 35 states have call successors, (35), 7 states have call predecessors, (35), 7 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-24 19:01:28,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 313 transitions. [2023-12-24 19:01:28,373 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 313 transitions. Word has length 132 [2023-12-24 19:01:28,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:01:28,374 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 313 transitions. [2023-12-24 19:01:28,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 5.619047619047619) internal successors, (118), 21 states have internal predecessors, (118), 10 states have call successors, (32), 8 states have call predecessors, (32), 10 states have return successors, (32), 9 states have call predecessors, (32), 10 states have call successors, (32) [2023-12-24 19:01:28,375 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 313 transitions. [2023-12-24 19:01:28,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-24 19:01:28,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:01:28,377 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:01:28,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-24 19:01:28,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-12-24 19:01:28,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-24 19:01:28,802 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:01:28,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:01:28,802 INFO L85 PathProgramCache]: Analyzing trace with hash -669934874, now seen corresponding path program 1 times [2023-12-24 19:01:28,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:01:28,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419481973] [2023-12-24 19:01:28,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:01:28,803 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:01:28,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:01:28,804 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:01:28,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process Received shutdown request... [2023-12-24 19:15:46,411 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 19:15:46,444 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 19:15:47,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-24 19:15:47,644 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forcibly destroying the process [2023-12-24 19:15:47,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 137 [2023-12-24 19:15:47,675 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-24 19:15:47,677 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 19:15:47,677 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 136 with TraceHistMax 16,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [1419481973] and IpTcStrategyModuleCvc4 [2049176338]. [2023-12-24 19:15:47,680 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:15:47,682 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 19:15:47,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 07:15:47 BoogieIcfgContainer [2023-12-24 19:15:47,683 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 19:15:47,683 INFO L158 Benchmark]: Toolchain (without parser) took 887654.52ms. Allocated memory was 195.0MB in the beginning and 351.3MB in the end (delta: 156.2MB). Free memory was 144.8MB in the beginning and 283.3MB in the end (delta: -138.5MB). Peak memory consumption was 18.5MB. Max. memory is 8.0GB. [2023-12-24 19:15:47,683 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 195.0MB. Free memory is still 147.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 19:15:47,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.44ms. Allocated memory is still 195.0MB. Free memory was 144.8MB in the beginning and 127.2MB in the end (delta: 17.6MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-24 19:15:47,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.65ms. Allocated memory is still 195.0MB. Free memory was 127.2MB in the beginning and 123.5MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-24 19:15:47,689 INFO L158 Benchmark]: Boogie Preprocessor took 90.60ms. Allocated memory is still 195.0MB. Free memory was 123.5MB in the beginning and 118.6MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-24 19:15:47,689 INFO L158 Benchmark]: RCFGBuilder took 1485.80ms. Allocated memory was 195.0MB in the beginning and 292.6MB in the end (delta: 97.5MB). Free memory was 118.6MB in the beginning and 241.9MB in the end (delta: -123.3MB). Peak memory consumption was 28.9MB. Max. memory is 8.0GB. [2023-12-24 19:15:47,689 INFO L158 Benchmark]: TraceAbstraction took 885803.85ms. Allocated memory was 292.6MB in the beginning and 351.3MB in the end (delta: 58.7MB). Free memory was 241.3MB in the beginning and 283.3MB in the end (delta: -41.9MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-24 19:15:47,690 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 195.0MB. Free memory is still 147.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 225.44ms. Allocated memory is still 195.0MB. Free memory was 144.8MB in the beginning and 127.2MB in the end (delta: 17.6MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.65ms. Allocated memory is still 195.0MB. Free memory was 127.2MB in the beginning and 123.5MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 90.60ms. Allocated memory is still 195.0MB. Free memory was 123.5MB in the beginning and 118.6MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1485.80ms. Allocated memory was 195.0MB in the beginning and 292.6MB in the end (delta: 97.5MB). Free memory was 118.6MB in the beginning and 241.9MB in the end (delta: -123.3MB). Peak memory consumption was 28.9MB. Max. memory is 8.0GB. * TraceAbstraction took 885803.85ms. Allocated memory was 292.6MB in the beginning and 351.3MB in the end (delta: 58.7MB). Free memory was 241.3MB in the beginning and 283.3MB in the end (delta: -41.9MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 136 with TraceHistMax 16,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [1419481973] and IpTcStrategyModuleCvc4 [2049176338]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 885.7s, OverallIterations: 8, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1345 SdHoareTripleChecker+Valid, 11.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1345 mSDsluCounter, 3056 SdHoareTripleChecker+Invalid, 10.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2276 mSDsCounter, 321 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2318 IncrementalHoareTripleChecker+Invalid, 2639 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 321 mSolverCounterUnsat, 780 mSDtfsCounter, 2318 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1276 GetRequests, 1158 SyntacticMatches, 1 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 839 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=320occurred in iteration=6, InterpolantAutomatonStates: 78, 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, 7 MinimizatonAttempts, 109 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 5.1s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 1150 NumberOfCodeBlocks, 1150 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1141 ConstructedInterpolants, 195 QuantifiedInterpolants, 10780 SizeOfPredicates, 46 NumberOfNonLiveVariables, 2387 ConjunctsInSsa, 133 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 4221/4320 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown