/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded/rekh_aso.2.M1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 08:34:45,082 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 08:34:45,177 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 08:34:45,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 08:34:45,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 08:34:45,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 08:34:45,221 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 08:34:45,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 08:34:45,222 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 08:34:45,226 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 08:34:45,226 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 08:34:45,227 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 08:34:45,228 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 08:34:45,229 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 08:34:45,229 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 08:34:45,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 08:34:45,230 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 08:34:45,231 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 08:34:45,231 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 08:34:45,231 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 08:34:45,232 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 08:34:45,232 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 08:34:45,232 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 08:34:45,233 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 08:34:45,233 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 08:34:45,233 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 08:34:45,233 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 08:34:45,234 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 08:34:45,234 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 08:34:45,234 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 08:34:45,235 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 08:34:45,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 08:34:45,236 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 08:34:45,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 08:34:45,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 08:34:45,236 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 08:34:45,237 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 08:34:45,237 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 08:34:45,237 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 08:34:45,237 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 08:34:45,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 08:34:45,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 08:34:45,238 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 08:34:45,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 08:34:45,239 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 08:34:45,239 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 08:34:45,239 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 08:34:45,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 08:34:45,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 08:34:45,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 08:34:45,532 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 08:34:45,535 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 08:34:45,537 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_aso.2.M1-1.c [2023-12-25 08:34:46,793 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 08:34:47,203 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 08:34:47,203 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_aso.2.M1-1.c [2023-12-25 08:34:47,240 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b696415e6/ebec1bd27123498a852a9d3d3f1a8a0c/FLAGcc3fc1434 [2023-12-25 08:34:47,261 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b696415e6/ebec1bd27123498a852a9d3d3f1a8a0c [2023-12-25 08:34:47,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 08:34:47,265 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 08:34:47,269 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 08:34:47,270 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 08:34:47,275 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 08:34:47,276 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 08:34:47" (1/1) ... [2023-12-25 08:34:47,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18d36eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:34:47, skipping insertion in model container [2023-12-25 08:34:47,278 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 08:34:47" (1/1) ... [2023-12-25 08:34:47,363 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 08:34:47,557 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_aso.2.M1-1.c[1807,1820] [2023-12-25 08:34:48,167 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 08:34:48,202 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 08:34:48,211 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.ok2.i","-S") [39] [2023-12-25 08:34:48,217 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_aso.2.M1-1.c[1807,1820] [2023-12-25 08:34:48,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 08:34:48,640 INFO L206 MainTranslator]: Completed translation [2023-12-25 08:34:48,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:34:48 WrapperNode [2023-12-25 08:34:48,641 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 08:34:48,643 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 08:34:48,643 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 08:34:48,643 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 08:34:48,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:34:48" (1/1) ... [2023-12-25 08:34:48,766 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:34:48" (1/1) ... [2023-12-25 08:34:49,225 INFO L138 Inliner]: procedures = 73, calls = 5188, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 11938 [2023-12-25 08:34:49,226 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 08:34:49,227 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 08:34:49,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 08:34:49,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 08:34:49,239 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:34:48" (1/1) ... [2023-12-25 08:34:49,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:34:48" (1/1) ... [2023-12-25 08:34:49,420 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:34:48" (1/1) ... [2023-12-25 08:34:49,533 INFO L175 MemorySlicer]: Split 3637 memory accesses to 27 slices as follows [4, 7, 8, 2, 2, 353, 429, 87, 87, 154, 177, 154, 177, 154, 177, 154, 177, 154, 177, 154, 2, 177, 154, 177, 154, 177, 8]. 12 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [0, 2, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 573 writes are split as follows [0, 3, 4, 1, 0, 28, 28, 28, 28, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 1, 27, 29, 27, 29, 27, 4]. [2023-12-25 08:34:49,534 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:34:48" (1/1) ... [2023-12-25 08:34:49,534 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:34:48" (1/1) ... [2023-12-25 08:34:49,825 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:34:48" (1/1) ... [2023-12-25 08:34:49,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:34:48" (1/1) ... [2023-12-25 08:34:49,957 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:34:48" (1/1) ... [2023-12-25 08:34:49,985 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:34:48" (1/1) ... [2023-12-25 08:34:50,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 08:34:50,051 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 08:34:50,051 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 08:34:50,051 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 08:34:50,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:34:48" (1/1) ... [2023-12-25 08:34:50,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 08:34:50,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 08:34:50,086 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) [2023-12-25 08:34:50,107 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 [2023-12-25 08:34:50,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 08:34:50,125 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2023-12-25 08:34:50,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2023-12-25 08:34:50,127 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2023-12-25 08:34:50,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2023-12-25 08:34:50,127 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-12-25 08:34:50,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-12-25 08:34:50,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-25 08:34:50,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-25 08:34:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-25 08:34:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-25 08:34:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-25 08:34:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-12-25 08:34:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2023-12-25 08:34:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2023-12-25 08:34:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2023-12-25 08:34:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2023-12-25 08:34:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#10 [2023-12-25 08:34:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#11 [2023-12-25 08:34:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#12 [2023-12-25 08:34:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#13 [2023-12-25 08:34:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#14 [2023-12-25 08:34:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#15 [2023-12-25 08:34:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#16 [2023-12-25 08:34:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#17 [2023-12-25 08:34:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#18 [2023-12-25 08:34:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#19 [2023-12-25 08:34:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#20 [2023-12-25 08:34:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#21 [2023-12-25 08:34:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#22 [2023-12-25 08:34:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#23 [2023-12-25 08:34:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#24 [2023-12-25 08:34:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#25 [2023-12-25 08:34:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#26 [2023-12-25 08:34:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-12-25 08:34:50,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-12-25 08:34:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-25 08:34:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-12-25 08:34:50,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-12-25 08:34:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-12-25 08:34:50,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-12-25 08:34:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-25 08:34:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-25 08:34:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-25 08:34:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-25 08:34:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-12-25 08:34:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-12-25 08:34:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-12-25 08:34:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-12-25 08:34:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2023-12-25 08:34:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2023-12-25 08:34:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2023-12-25 08:34:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2023-12-25 08:34:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2023-12-25 08:34:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2023-12-25 08:34:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2023-12-25 08:34:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2023-12-25 08:34:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2023-12-25 08:34:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#17 [2023-12-25 08:34:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#18 [2023-12-25 08:34:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#19 [2023-12-25 08:34:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#20 [2023-12-25 08:34:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#21 [2023-12-25 08:34:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#22 [2023-12-25 08:34:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#23 [2023-12-25 08:34:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#24 [2023-12-25 08:34:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#25 [2023-12-25 08:34:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#26 [2023-12-25 08:34:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-12-25 08:34:50,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-12-25 08:34:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-12-25 08:34:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-12-25 08:34:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-12-25 08:34:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-12-25 08:34:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-12-25 08:34:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-12-25 08:34:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2023-12-25 08:34:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2023-12-25 08:34:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-12-25 08:34:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-12-25 08:34:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-12-25 08:34:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-12-25 08:34:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-12-25 08:34:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-12-25 08:34:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2023-12-25 08:34:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2023-12-25 08:34:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-25 08:34:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-25 08:34:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-25 08:34:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-25 08:34:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-25 08:34:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-12-25 08:34:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2023-12-25 08:34:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2023-12-25 08:34:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2023-12-25 08:34:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2023-12-25 08:34:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#10 [2023-12-25 08:34:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#11 [2023-12-25 08:34:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#12 [2023-12-25 08:34:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#13 [2023-12-25 08:34:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#14 [2023-12-25 08:34:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#15 [2023-12-25 08:34:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#16 [2023-12-25 08:34:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#17 [2023-12-25 08:34:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#18 [2023-12-25 08:34:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#19 [2023-12-25 08:34:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#20 [2023-12-25 08:34:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#21 [2023-12-25 08:34:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#22 [2023-12-25 08:34:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#23 [2023-12-25 08:34:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#24 [2023-12-25 08:34:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#25 [2023-12-25 08:34:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#26 [2023-12-25 08:34:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-25 08:34:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-25 08:34:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-25 08:34:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-25 08:34:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-25 08:34:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-12-25 08:34:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-12-25 08:34:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-12-25 08:34:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-12-25 08:34:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2023-12-25 08:34:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2023-12-25 08:34:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2023-12-25 08:34:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2023-12-25 08:34:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2023-12-25 08:34:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2023-12-25 08:34:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2023-12-25 08:34:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2023-12-25 08:34:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2023-12-25 08:34:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#17 [2023-12-25 08:34:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#18 [2023-12-25 08:34:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#19 [2023-12-25 08:34:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#20 [2023-12-25 08:34:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#21 [2023-12-25 08:34:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#22 [2023-12-25 08:34:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#23 [2023-12-25 08:34:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#24 [2023-12-25 08:34:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#25 [2023-12-25 08:34:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#26 [2023-12-25 08:34:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 08:34:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 08:34:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 08:34:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 08:34:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 08:34:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 08:34:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 08:34:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 08:34:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 08:34:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 08:34:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 08:34:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 08:34:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 08:34:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 08:34:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 08:34:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 08:34:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 08:34:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 08:34:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 08:34:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 08:34:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#20 [2023-12-25 08:34:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#21 [2023-12-25 08:34:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#22 [2023-12-25 08:34:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#23 [2023-12-25 08:34:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#24 [2023-12-25 08:34:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#25 [2023-12-25 08:34:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#26 [2023-12-25 08:34:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-12-25 08:34:50,152 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-12-25 08:34:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-12-25 08:34:50,152 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-12-25 08:34:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2023-12-25 08:34:50,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2023-12-25 08:34:50,153 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-12-25 08:34:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-12-25 08:34:50,153 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-25 08:34:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-25 08:34:50,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 08:34:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 08:34:50,153 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-12-25 08:34:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-12-25 08:34:50,153 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-12-25 08:34:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-12-25 08:34:50,153 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-12-25 08:34:50,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-12-25 08:34:50,154 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2023-12-25 08:34:50,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2023-12-25 08:34:50,987 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 08:34:50,989 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 08:35:53,702 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 08:35:53,990 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 08:35:53,990 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 08:35:53,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 08:35:53 BoogieIcfgContainer [2023-12-25 08:35:53,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 08:35:53,994 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 08:35:53,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 08:35:53,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 08:35:53,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 08:34:47" (1/3) ... [2023-12-25 08:35:53,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9b2628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 08:35:53, skipping insertion in model container [2023-12-25 08:35:53,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:34:48" (2/3) ... [2023-12-25 08:35:53,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9b2628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 08:35:53, skipping insertion in model container [2023-12-25 08:35:53,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 08:35:53" (3/3) ... [2023-12-25 08:35:53,999 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M1-1.c [2023-12-25 08:35:54,014 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 08:35:54,015 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 08:35:54,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 08:35:54,149 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;@dcbf61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 08:35:54,149 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 08:35:54,165 INFO L276 IsEmpty]: Start isEmpty. Operand has 3407 states, 1875 states have (on average 1.1802666666666666) internal successors, (2213), 2005 states have internal predecessors, (2213), 1506 states have call successors, (1506), 24 states have call predecessors, (1506), 24 states have return successors, (1506), 1406 states have call predecessors, (1506), 1506 states have call successors, (1506) [2023-12-25 08:35:54,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1372 [2023-12-25 08:35:54,358 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 08:35:54,359 INFO L195 NwaCegarLoop]: trace histogram [210, 210, 210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 08:35:54,360 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 08:35:54,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 08:35:54,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1541726892, now seen corresponding path program 1 times [2023-12-25 08:35:54,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 08:35:54,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641515733] [2023-12-25 08:35:54,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 08:35:54,384 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 [2023-12-25 08:35:54,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 08:35:54,387 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) [2023-12-25 08:35:54,425 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 [2023-12-25 08:35:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 08:35:59,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 2815 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 08:35:59,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 08:35:59,256 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 30410 proven. 0 refuted. 0 times theorem prover too weak. 57370 trivial. 0 not checked. [2023-12-25 08:35:59,256 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 08:35:59,257 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 08:35:59,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641515733] [2023-12-25 08:35:59,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641515733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 08:35:59,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 08:35:59,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 08:35:59,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629024435] [2023-12-25 08:35:59,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 08:35:59,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 08:35:59,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 08:35:59,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 08:35:59,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 08:35:59,320 INFO L87 Difference]: Start difference. First operand has 3407 states, 1875 states have (on average 1.1802666666666666) internal successors, (2213), 2005 states have internal predecessors, (2213), 1506 states have call successors, (1506), 24 states have call predecessors, (1506), 24 states have return successors, (1506), 1406 states have call predecessors, (1506), 1506 states have call successors, (1506) Second operand has 2 states, 2 states have (on average 161.5) internal successors, (323), 2 states have internal predecessors, (323), 2 states have call successors, (213), 2 states have call predecessors, (213), 2 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) [2023-12-25 08:36:00,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:36:05,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:36:09,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:36:10,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 08:36:10,271 INFO L93 Difference]: Finished difference Result 6812 states and 11925 transitions. [2023-12-25 08:36:10,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 08:36:10,275 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 161.5) internal successors, (323), 2 states have internal predecessors, (323), 2 states have call successors, (213), 2 states have call predecessors, (213), 2 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) Word has length 1371 [2023-12-25 08:36:10,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 08:36:10,327 INFO L225 Difference]: With dead ends: 6812 [2023-12-25 08:36:10,328 INFO L226 Difference]: Without dead ends: 3405 [2023-12-25 08:36:10,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1370 GetRequests, 1370 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 08:36:10,381 INFO L413 NwaCegarLoop]: 5187 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5187 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2023-12-25 08:36:10,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5187 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2023-12-25 08:36:10,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3405 states. [2023-12-25 08:36:11,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3405 to 3405. [2023-12-25 08:36:11,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3405 states, 1874 states have (on average 1.1787620064034152) internal successors, (2209), 2004 states have internal predecessors, (2209), 1506 states have call successors, (1506), 24 states have call predecessors, (1506), 24 states have return successors, (1505), 1405 states have call predecessors, (1505), 1505 states have call successors, (1505) [2023-12-25 08:36:11,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3405 states to 3405 states and 5220 transitions. [2023-12-25 08:36:11,802 INFO L78 Accepts]: Start accepts. Automaton has 3405 states and 5220 transitions. Word has length 1371 [2023-12-25 08:36:11,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 08:36:11,803 INFO L495 AbstractCegarLoop]: Abstraction has 3405 states and 5220 transitions. [2023-12-25 08:36:11,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 161.5) internal successors, (323), 2 states have internal predecessors, (323), 2 states have call successors, (213), 2 states have call predecessors, (213), 2 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) [2023-12-25 08:36:11,804 INFO L276 IsEmpty]: Start isEmpty. Operand 3405 states and 5220 transitions. [2023-12-25 08:36:11,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1372 [2023-12-25 08:36:11,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 08:36:11,963 INFO L195 NwaCegarLoop]: trace histogram [210, 210, 210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 08:36:12,026 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 [2023-12-25 08:36:12,188 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 [2023-12-25 08:36:12,189 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 08:36:12,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 08:36:12,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1932450164, now seen corresponding path program 1 times [2023-12-25 08:36:12,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 08:36:12,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939581639] [2023-12-25 08:36:12,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 08:36:12,195 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 [2023-12-25 08:36:12,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 08:36:12,197 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) [2023-12-25 08:36:12,231 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 [2023-12-25 08:36:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 08:36:22,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 2815 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-25 08:36:22,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 08:37:39,113 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 30 treesize of output 18 [2023-12-25 08:37:49,119 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:37:49,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 44 [2023-12-25 08:37:57,092 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:37:57,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 97 treesize of output 55 [2023-12-25 08:37:57,130 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:37:57,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 52 [2023-12-25 08:37:58,658 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 60725 proven. 2978 refuted. 0 times theorem prover too weak. 24077 trivial. 0 not checked. [2023-12-25 08:37:58,659 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 08:38:20,209 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:38:20,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 55 [2023-12-25 08:38:22,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 08:38:22,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939581639] [2023-12-25 08:38:22,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939581639] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 08:38:22,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1884652056] [2023-12-25 08:38:22,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 08:38:22,814 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-25 08:38:22,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-25 08:38:22,850 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-25 08:38:22,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-25 08:38:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 08:38:26,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 2815 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 08:38:26,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 08:38:26,544 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 1460 proven. 0 refuted. 0 times theorem prover too weak. 86320 trivial. 0 not checked. [2023-12-25 08:38:26,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 08:38:26,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1884652056] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 08:38:26,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 08:38:26,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [45] total 45 [2023-12-25 08:38:26,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662275560] [2023-12-25 08:38:26,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 08:38:26,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 08:38:26,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 08:38:26,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 08:38:26,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=733, Invalid=3557, Unknown=0, NotChecked=0, Total=4290 [2023-12-25 08:38:26,555 INFO L87 Difference]: Start difference. First operand 3405 states and 5220 transitions. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 2 states have call successors, (213), 2 states have call predecessors, (213), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) [2023-12-25 08:38:50,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:38:54,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:38:58,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:39:04,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:39:08,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:39:12,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:40:16,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 08:40:16,401 INFO L93 Difference]: Finished difference Result 6102 states and 9385 transitions. [2023-12-25 08:40:16,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 08:40:16,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 2 states have call successors, (213), 2 states have call predecessors, (213), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) Word has length 1371 [2023-12-25 08:40:16,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 08:40:16,438 INFO L225 Difference]: With dead ends: 6102 [2023-12-25 08:40:16,438 INFO L226 Difference]: Without dead ends: 3403 [2023-12-25 08:40:16,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3239 GetRequests, 3174 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1501 ImplicationChecksByTransitivity, 44.3s TimeCoverageRelationStatistics Valid=744, Invalid=3678, Unknown=0, NotChecked=0, Total=4422 [2023-12-25 08:40:16,462 INFO L413 NwaCegarLoop]: 3816 mSDtfsCounter, 3 mSDsluCounter, 4894 mSDsCounter, 0 mSdLazyCounter, 6926 mSolverCounterSat, 4 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8710 SdHoareTripleChecker+Invalid, 6936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6926 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 108.7s IncrementalHoareTripleChecker+Time [2023-12-25 08:40:16,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 8710 Invalid, 6936 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4 Valid, 6926 Invalid, 6 Unknown, 0 Unchecked, 108.7s Time] [2023-12-25 08:40:16,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3403 states. [2023-12-25 08:40:17,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3403 to 3401. [2023-12-25 08:40:17,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3401 states, 1872 states have (on average 1.1778846153846154) internal successors, (2205), 2002 states have internal predecessors, (2205), 1504 states have call successors, (1504), 24 states have call predecessors, (1504), 24 states have return successors, (1503), 1403 states have call predecessors, (1503), 1503 states have call successors, (1503) [2023-12-25 08:40:17,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3401 states to 3401 states and 5212 transitions. [2023-12-25 08:40:17,368 INFO L78 Accepts]: Start accepts. Automaton has 3401 states and 5212 transitions. Word has length 1371 [2023-12-25 08:40:17,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 08:40:17,378 INFO L495 AbstractCegarLoop]: Abstraction has 3401 states and 5212 transitions. [2023-12-25 08:40:17,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 2 states have call successors, (213), 2 states have call predecessors, (213), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) [2023-12-25 08:40:17,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3401 states and 5212 transitions. [2023-12-25 08:40:17,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1407 [2023-12-25 08:40:17,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 08:40:17,405 INFO L195 NwaCegarLoop]: trace histogram [209, 209, 209, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 08:40:17,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-25 08:40:17,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-25 08:40:17,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-25 08:40:17,821 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 08:40:17,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 08:40:17,822 INFO L85 PathProgramCache]: Analyzing trace with hash -415790816, now seen corresponding path program 1 times [2023-12-25 08:40:17,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 08:40:17,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410548188] [2023-12-25 08:40:17,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 08:40:17,825 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 [2023-12-25 08:40:17,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 08:40:17,827 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) [2023-12-25 08:40:17,828 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 [2023-12-25 08:40:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 08:40:29,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 2910 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-25 08:40:29,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 08:41:42,569 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 30 treesize of output 18 [2023-12-25 08:41:52,451 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:41:52,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 44 [2023-12-25 08:41:59,388 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:41:59,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 97 treesize of output 55 [2023-12-25 08:41:59,419 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:41:59,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 52 [2023-12-25 08:42:00,918 INFO L134 CoverageAnalysis]: Checked inductivity of 86948 backedges. 60089 proven. 2978 refuted. 0 times theorem prover too weak. 23881 trivial. 0 not checked. [2023-12-25 08:42:00,918 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 08:42:23,586 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:42:23,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 55 [2023-12-25 08:42:26,239 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 08:42:26,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410548188] [2023-12-25 08:42:26,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410548188] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 08:42:26,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2057835855] [2023-12-25 08:42:26,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 08:42:26,240 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-25 08:42:26,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-25 08:42:26,241 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-25 08:42:26,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-25 08:42:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 08:42:30,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 2910 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 08:42:30,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 08:42:31,089 INFO L134 CoverageAnalysis]: Checked inductivity of 86948 backedges. 836 proven. 0 refuted. 0 times theorem prover too weak. 86112 trivial. 0 not checked. [2023-12-25 08:42:31,090 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 08:42:31,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2057835855] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 08:42:31,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 08:42:31,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [45] total 46 [2023-12-25 08:42:31,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65361672] [2023-12-25 08:42:31,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 08:42:31,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 08:42:31,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 08:42:31,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 08:42:31,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=735, Invalid=3687, Unknown=0, NotChecked=0, Total=4422 [2023-12-25 08:42:31,096 INFO L87 Difference]: Start difference. First operand 3401 states and 5212 transitions. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 2 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (215), 2 states have call predecessors, (215), 2 states have call successors, (215) [2023-12-25 08:42:32,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:42:33,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:42:37,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:42:41,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:42:46,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:42:47,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 08:42:47,368 INFO L93 Difference]: Finished difference Result 6094 states and 9367 transitions. [2023-12-25 08:42:47,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 08:42:47,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 2 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (215), 2 states have call predecessors, (215), 2 states have call successors, (215) Word has length 1406 [2023-12-25 08:42:47,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 08:42:47,405 INFO L225 Difference]: With dead ends: 6094 [2023-12-25 08:42:47,405 INFO L226 Difference]: Without dead ends: 3401 [2023-12-25 08:42:47,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3343 GetRequests, 3278 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1523 ImplicationChecksByTransitivity, 45.6s TimeCoverageRelationStatistics Valid=735, Invalid=3687, Unknown=0, NotChecked=0, Total=4422 [2023-12-25 08:42:47,525 INFO L413 NwaCegarLoop]: 5176 mSDtfsCounter, 40 mSDsluCounter, 5112 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 10288 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2023-12-25 08:42:47,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 10288 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 3 Unknown, 0 Unchecked, 16.1s Time] [2023-12-25 08:42:47,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2023-12-25 08:42:48,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 3401. [2023-12-25 08:42:48,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3401 states, 1872 states have (on average 1.1773504273504274) internal successors, (2204), 2002 states have internal predecessors, (2204), 1504 states have call successors, (1504), 24 states have call predecessors, (1504), 24 states have return successors, (1503), 1403 states have call predecessors, (1503), 1503 states have call successors, (1503) [2023-12-25 08:42:48,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3401 states to 3401 states and 5211 transitions. [2023-12-25 08:42:48,561 INFO L78 Accepts]: Start accepts. Automaton has 3401 states and 5211 transitions. Word has length 1406 [2023-12-25 08:42:48,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 08:42:48,564 INFO L495 AbstractCegarLoop]: Abstraction has 3401 states and 5211 transitions. [2023-12-25 08:42:48,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 2 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (215), 2 states have call predecessors, (215), 2 states have call successors, (215) [2023-12-25 08:42:48,565 INFO L276 IsEmpty]: Start isEmpty. Operand 3401 states and 5211 transitions. [2023-12-25 08:42:48,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1413 [2023-12-25 08:42:48,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 08:42:48,589 INFO L195 NwaCegarLoop]: trace histogram [209, 209, 209, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 08:42:48,640 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 [2023-12-25 08:42:48,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-25 08:42:49,016 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-25 08:42:49,017 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 08:42:49,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 08:42:49,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1384690080, now seen corresponding path program 1 times [2023-12-25 08:42:49,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 08:42:49,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646402182] [2023-12-25 08:42:49,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 08:42:49,022 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 [2023-12-25 08:42:49,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 08:42:49,024 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) [2023-12-25 08:42:49,026 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 [2023-12-25 08:43:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 08:43:00,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 2928 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-25 08:43:00,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 08:44:15,854 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 30 treesize of output 18 [2023-12-25 08:44:25,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:44:25,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 44 [2023-12-25 08:44:33,096 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:44:33,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 97 treesize of output 55 [2023-12-25 08:44:33,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:44:33,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 52 [2023-12-25 08:44:34,628 INFO L134 CoverageAnalysis]: Checked inductivity of 86950 backedges. 60089 proven. 2978 refuted. 0 times theorem prover too weak. 23883 trivial. 0 not checked. [2023-12-25 08:44:34,628 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 08:44:56,969 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:44:56,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 55 [2023-12-25 08:44:59,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 08:44:59,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646402182] [2023-12-25 08:44:59,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1646402182] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 08:44:59,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1771073609] [2023-12-25 08:44:59,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 08:44:59,540 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-25 08:44:59,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-25 08:44:59,545 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) [2023-12-25 08:44:59,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-25 08:45:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 08:45:03,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 2928 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 08:45:03,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 08:45:07,482 INFO L134 CoverageAnalysis]: Checked inductivity of 86950 backedges. 835 proven. 0 refuted. 0 times theorem prover too weak. 86115 trivial. 0 not checked. [2023-12-25 08:45:07,483 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 08:45:07,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1771073609] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 08:45:07,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 08:45:07,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [45] total 48 [2023-12-25 08:45:07,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962541927] [2023-12-25 08:45:07,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 08:45:07,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 08:45:07,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 08:45:07,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 08:45:07,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=740, Invalid=3952, Unknown=0, NotChecked=0, Total=4692 [2023-12-25 08:45:07,488 INFO L87 Difference]: Start difference. First operand 3401 states and 5211 transitions. Second operand has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 3 states have call successors, (218), 3 states have call predecessors, (218), 3 states have return successors, (217), 3 states have call predecessors, (217), 3 states have call successors, (217) [2023-12-25 08:45:08,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:45:09,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:45:13,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:45:17,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:45:22,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:45:26,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:45:30,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:45:40,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:45:44,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:45:48,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:46:35,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 08:46:35,071 INFO L93 Difference]: Finished difference Result 6390 states and 9806 transitions. [2023-12-25 08:46:35,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 08:46:35,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 3 states have call successors, (218), 3 states have call predecessors, (218), 3 states have return successors, (217), 3 states have call predecessors, (217), 3 states have call successors, (217) Word has length 1412 [2023-12-25 08:46:35,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 08:46:35,104 INFO L225 Difference]: With dead ends: 6390 [2023-12-25 08:46:35,104 INFO L226 Difference]: Without dead ends: 3697 [2023-12-25 08:46:35,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3362 GetRequests, 3294 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1681 ImplicationChecksByTransitivity, 47.8s TimeCoverageRelationStatistics Valid=744, Invalid=4086, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 08:46:35,123 INFO L413 NwaCegarLoop]: 5124 mSDtfsCounter, 3367 mSDsluCounter, 8382 mSDsCounter, 0 mSdLazyCounter, 4305 mSolverCounterSat, 29 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3367 SdHoareTripleChecker+Valid, 13506 SdHoareTripleChecker+Invalid, 4342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 4305 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.5s IncrementalHoareTripleChecker+Time [2023-12-25 08:46:35,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3367 Valid, 13506 Invalid, 4342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 4305 Invalid, 8 Unknown, 0 Unchecked, 86.5s Time] [2023-12-25 08:46:35,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2023-12-25 08:46:36,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3695. [2023-12-25 08:46:36,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3695 states, 2086 states have (on average 1.1951102588686482) internal successors, (2493), 2216 states have internal predecessors, (2493), 1574 states have call successors, (1574), 34 states have call predecessors, (1574), 34 states have return successors, (1573), 1473 states have call predecessors, (1573), 1573 states have call successors, (1573) [2023-12-25 08:46:36,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3695 states to 3695 states and 5640 transitions. [2023-12-25 08:46:36,212 INFO L78 Accepts]: Start accepts. Automaton has 3695 states and 5640 transitions. Word has length 1412 [2023-12-25 08:46:36,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 08:46:36,214 INFO L495 AbstractCegarLoop]: Abstraction has 3695 states and 5640 transitions. [2023-12-25 08:46:36,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 3 states have call successors, (218), 3 states have call predecessors, (218), 3 states have return successors, (217), 3 states have call predecessors, (217), 3 states have call successors, (217) [2023-12-25 08:46:36,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3695 states and 5640 transitions. [2023-12-25 08:46:36,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1409 [2023-12-25 08:46:36,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 08:46:36,239 INFO L195 NwaCegarLoop]: trace histogram [209, 209, 209, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 08:46:36,300 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 [2023-12-25 08:46:36,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-25 08:46:36,664 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 [2023-12-25 08:46:36,665 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 08:46:36,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 08:46:36,666 INFO L85 PathProgramCache]: Analyzing trace with hash 2091548988, now seen corresponding path program 1 times [2023-12-25 08:46:36,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 08:46:36,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697774921] [2023-12-25 08:46:36,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 08:46:36,669 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 [2023-12-25 08:46:36,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 08:46:36,670 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) [2023-12-25 08:46:36,671 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 [2023-12-25 08:46:48,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 08:46:48,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 2922 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-25 08:46:48,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 08:48:03,717 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 30 treesize of output 18 [2023-12-25 08:48:13,749 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:48:13,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 44 [2023-12-25 08:48:20,733 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:48:20,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 97 treesize of output 55 [2023-12-25 08:48:20,763 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:48:20,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 52 [2023-12-25 08:48:22,202 INFO L134 CoverageAnalysis]: Checked inductivity of 86952 backedges. 60089 proven. 2978 refuted. 0 times theorem prover too weak. 23885 trivial. 0 not checked. [2023-12-25 08:48:22,203 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-25 08:48:28,515 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-25 08:48:28,537 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 [2023-12-25 08:48:28,538 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 (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-25 08:48:28,556 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 [2023-12-25 08:48:28,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 08:48:28,721 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 1409 with TraceHistMax 209,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∨-3-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. [2023-12-25 08:48:28,725 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-25 08:48:28,728 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-25 08:48:28,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 08:48:28 BoogieIcfgContainer [2023-12-25 08:48:28,730 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-25 08:48:28,730 INFO L158 Benchmark]: Toolchain (without parser) took 821465.60ms. Allocated memory was 212.9MB in the beginning and 682.6MB in the end (delta: 469.8MB). Free memory was 157.2MB in the beginning and 150.2MB in the end (delta: 7.0MB). Peak memory consumption was 478.0MB. Max. memory is 8.0GB. [2023-12-25 08:48:28,731 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 212.9MB. Free memory is still 169.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 08:48:28,731 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1371.92ms. Allocated memory was 212.9MB in the beginning and 284.2MB in the end (delta: 71.3MB). Free memory was 157.2MB in the beginning and 199.2MB in the end (delta: -41.9MB). Peak memory consumption was 67.2MB. Max. memory is 8.0GB. [2023-12-25 08:48:28,731 INFO L158 Benchmark]: Boogie Procedure Inliner took 583.01ms. Allocated memory is still 284.2MB. Free memory was 199.2MB in the beginning and 193.2MB in the end (delta: 5.9MB). Peak memory consumption was 75.1MB. Max. memory is 8.0GB. [2023-12-25 08:48:28,732 INFO L158 Benchmark]: Boogie Preprocessor took 823.28ms. Allocated memory was 284.2MB in the beginning and 568.3MB in the end (delta: 284.2MB). Free memory was 193.2MB in the beginning and 459.6MB in the end (delta: -266.3MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. [2023-12-25 08:48:28,732 INFO L158 Benchmark]: RCFGBuilder took 63939.49ms. Allocated memory is still 568.3MB. Free memory was 459.6MB in the beginning and 214.3MB in the end (delta: 245.3MB). Peak memory consumption was 269.4MB. Max. memory is 8.0GB. [2023-12-25 08:48:28,732 INFO L158 Benchmark]: TraceAbstraction took 754736.49ms. Allocated memory was 568.3MB in the beginning and 682.6MB in the end (delta: 114.3MB). Free memory was 213.3MB in the beginning and 150.2MB in the end (delta: 63.1MB). Peak memory consumption was 178.4MB. Max. memory is 8.0GB. [2023-12-25 08:48:28,734 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 212.9MB. Free memory is still 169.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1371.92ms. Allocated memory was 212.9MB in the beginning and 284.2MB in the end (delta: 71.3MB). Free memory was 157.2MB in the beginning and 199.2MB in the end (delta: -41.9MB). Peak memory consumption was 67.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 583.01ms. Allocated memory is still 284.2MB. Free memory was 199.2MB in the beginning and 193.2MB in the end (delta: 5.9MB). Peak memory consumption was 75.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 823.28ms. Allocated memory was 284.2MB in the beginning and 568.3MB in the end (delta: 284.2MB). Free memory was 193.2MB in the beginning and 459.6MB in the end (delta: -266.3MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. * RCFGBuilder took 63939.49ms. Allocated memory is still 568.3MB. Free memory was 459.6MB in the beginning and 214.3MB in the end (delta: 245.3MB). Peak memory consumption was 269.4MB. Max. memory is 8.0GB. * TraceAbstraction took 754736.49ms. Allocated memory was 568.3MB in the beginning and 682.6MB in the end (delta: 114.3MB). Free memory was 213.3MB in the beginning and 150.2MB in the end (delta: 63.1MB). Peak memory consumption was 178.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 39]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.ok2.i","-S") [39] * 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: 46]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 46). Cancelled while NwaCegarLoop was analyzing trace of length 1409 with TraceHistMax 209,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∨-3-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 3407 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 754.7s, OverallIterations: 5, TraceHistogramMax: 210, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 225.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 19 mSolverCounterUnknown, 3432 SdHoareTripleChecker+Valid, 222.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3410 mSDsluCounter, 37691 SdHoareTripleChecker+Invalid, 217.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18388 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11329 IncrementalHoareTripleChecker+Invalid, 11384 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 19303 mSDtfsCounter, 11329 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11314 GetRequests, 11116 SyntacticMatches, 0 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4705 ImplicationChecksByTransitivity, 137.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3695occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3.5s SsaConstructionTime, 28.3s SatisfiabilityAnalysisTime, 362.8s InterpolantComputationTime, 9749 NumberOfCodeBlocks, 9749 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 9742 ConstructedInterpolants, 129 QuantifiedInterpolants, 117691 SizeOfPredicates, 115 NumberOfNonLiveVariables, 20121 ConjunctsInSsa, 175 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 602202/611136 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