/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:52:33,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:52:33,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:52:33,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:52:33,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:52:33,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:52:33,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:52:33,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:52:33,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:52:33,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:52:33,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:52:33,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:52:33,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:52:33,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:52:33,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:52:33,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:52:33,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:52:33,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:52:33,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:52:33,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:52:33,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:52:33,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:52:33,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:52:33,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:52:33,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 08:52:33,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:52:33,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:52:33,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:52:33,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:52:33,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:52:33,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:52:33,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:52:33,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:52:33,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:52:33,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:52:33,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:52:33,372 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:52:33,398 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:52:33,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:52:33,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:52:33,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:52:33,401 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:52:33,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:52:33,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:52:33,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:52:33,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:52:33,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:52:33,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:52:33,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:52:33,403 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:52:33,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:52:33,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:52:33,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:52:33,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:52:33,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:52:33,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:52:33,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:52:33,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:52:33,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:52:33,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:52:33,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:52:33,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:52:33,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:52:33,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:52:33,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:52:33,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:52:33,809 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:52:33,809 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:52:33,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:52:33,884 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ae078e01/9a1d2a0346c54049b0023bcfdc8f2cad/FLAG114300eab [2020-12-22 08:52:34,868 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:52:34,869 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:52:34,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ae078e01/9a1d2a0346c54049b0023bcfdc8f2cad/FLAG114300eab [2020-12-22 08:52:35,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ae078e01/9a1d2a0346c54049b0023bcfdc8f2cad [2020-12-22 08:52:35,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:52:35,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:52:35,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:52:35,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:52:35,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:52:35,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:52:35" (1/1) ... [2020-12-22 08:52:35,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@463f0374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:35, skipping insertion in model container [2020-12-22 08:52:35,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:52:35" (1/1) ... [2020-12-22 08:52:35,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:52:35,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:52:36,655 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69160,69173] [2020-12-22 08:52:36,786 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[100828,100841] [2020-12-22 08:52:36,852 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[116646,116659] [2020-12-22 08:52:36,886 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[124551,124564] [2020-12-22 08:52:36,905 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[128477,128490] [2020-12-22 08:52:36,924 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132219,132232] [2020-12-22 08:52:37,041 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[163377,163390] [2020-12-22 08:52:37,097 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[178980,178993] [2020-12-22 08:52:37,164 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[186880,186893] [2020-12-22 08:52:37,181 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[190801,190814] [2020-12-22 08:52:37,196 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[194538,194551] [2020-12-22 08:52:37,261 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[211323,211336] [2020-12-22 08:52:37,293 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[219223,219236] [2020-12-22 08:52:37,308 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223144,223157] [2020-12-22 08:52:37,324 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[226881,226894] [2020-12-22 08:52:37,341 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231381,231394] [2020-12-22 08:52:37,355 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[235169,235182] [2020-12-22 08:52:37,371 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[239090,239103] [2020-12-22 08:52:37,388 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[242827,242840] [2020-12-22 08:52:37,403 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[246948,246961] [2020-12-22 08:52:37,419 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[250701,250714] [2020-12-22 08:52:37,435 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[254618,254631] [2020-12-22 08:52:37,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:52:37,511 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:52:37,846 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69160,69173] [2020-12-22 08:52:37,939 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[100828,100841] [2020-12-22 08:52:37,986 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[116646,116659] [2020-12-22 08:52:38,010 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[124551,124564] [2020-12-22 08:52:38,024 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[128477,128490] [2020-12-22 08:52:38,036 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132219,132232] [2020-12-22 08:52:38,122 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[163377,163390] [2020-12-22 08:52:38,165 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[178980,178993] [2020-12-22 08:52:38,211 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[186880,186893] [2020-12-22 08:52:38,223 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[190801,190814] [2020-12-22 08:52:38,237 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[194538,194551] [2020-12-22 08:52:38,284 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[211323,211336] [2020-12-22 08:52:38,307 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[219223,219236] [2020-12-22 08:52:38,320 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223144,223157] [2020-12-22 08:52:38,333 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[226881,226894] [2020-12-22 08:52:38,347 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231381,231394] [2020-12-22 08:52:38,361 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[235169,235182] [2020-12-22 08:52:38,442 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[239090,239103] [2020-12-22 08:52:38,455 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[242827,242840] [2020-12-22 08:52:38,468 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[246948,246961] [2020-12-22 08:52:38,480 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[250701,250714] [2020-12-22 08:52:38,492 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[254618,254631] [2020-12-22 08:52:38,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:52:38,573 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:52:38,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:38 WrapperNode [2020-12-22 08:52:38,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:52:38,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:52:38,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:52:38,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:52:38,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:38" (1/1) ... [2020-12-22 08:52:38,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:38" (1/1) ... [2020-12-22 08:52:38,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:52:38,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:52:38,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:52:38,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:52:38,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:38" (1/1) ... [2020-12-22 08:52:38,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:38" (1/1) ... [2020-12-22 08:52:38,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:38" (1/1) ... [2020-12-22 08:52:38,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:38" (1/1) ... [2020-12-22 08:52:39,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:38" (1/1) ... [2020-12-22 08:52:39,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:38" (1/1) ... [2020-12-22 08:52:39,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:38" (1/1) ... [2020-12-22 08:52:39,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:52:39,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:52:39,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:52:39,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:52:39,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:52:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:52:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:52:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:52:39,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:52:45,968 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:52:45,968 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:52:45,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:52:45 BoogieIcfgContainer [2020-12-22 08:52:45,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:52:45,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:52:45,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:52:45,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:52:45,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:52:35" (1/3) ... [2020-12-22 08:52:45,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dfcbe7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:52:45, skipping insertion in model container [2020-12-22 08:52:45,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:38" (2/3) ... [2020-12-22 08:52:45,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dfcbe7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:52:45, skipping insertion in model container [2020-12-22 08:52:45,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:52:45" (3/3) ... [2020-12-22 08:52:45,984 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:52:45,991 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:52:45,999 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-12-22 08:52:46,019 INFO L253 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-12-22 08:52:46,057 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:52:46,057 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:52:46,058 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:52:46,058 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:52:46,058 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:52:46,058 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:52:46,058 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:52:46,058 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:52:46,115 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states. [2020-12-22 08:52:46,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-22 08:52:46,151 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:46,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:46,157 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:46,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:46,165 INFO L82 PathProgramCache]: Analyzing trace with hash 945954769, now seen corresponding path program 1 times [2020-12-22 08:52:46,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:46,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874309155] [2020-12-22 08:52:46,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:46,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:46,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874309155] [2020-12-22 08:52:46,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:46,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:52:46,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749776648] [2020-12-22 08:52:46,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:52:46,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:46,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:52:46,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:52:46,903 INFO L87 Difference]: Start difference. First operand 2348 states. Second operand 5 states. [2020-12-22 08:52:49,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:49,038 INFO L93 Difference]: Finished difference Result 2546 states and 4528 transitions. [2020-12-22 08:52:49,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:52:49,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 86 [2020-12-22 08:52:49,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:49,083 INFO L225 Difference]: With dead ends: 2546 [2020-12-22 08:52:49,084 INFO L226 Difference]: Without dead ends: 1401 [2020-12-22 08:52:49,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:52:49,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2020-12-22 08:52:49,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1401. [2020-12-22 08:52:49,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1401 states. [2020-12-22 08:52:49,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 1798 transitions. [2020-12-22 08:52:49,272 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 1798 transitions. Word has length 86 [2020-12-22 08:52:49,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:49,275 INFO L481 AbstractCegarLoop]: Abstraction has 1401 states and 1798 transitions. [2020-12-22 08:52:49,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:52:49,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 1798 transitions. [2020-12-22 08:52:49,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-22 08:52:49,285 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:49,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:49,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:52:49,287 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:49,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:49,290 INFO L82 PathProgramCache]: Analyzing trace with hash -340795257, now seen corresponding path program 1 times [2020-12-22 08:52:49,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:49,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929285952] [2020-12-22 08:52:49,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:49,638 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 4 [2020-12-22 08:52:49,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:49,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929285952] [2020-12-22 08:52:49,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:49,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:52:49,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239668530] [2020-12-22 08:52:49,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:52:49,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:49,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:52:49,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:52:49,674 INFO L87 Difference]: Start difference. First operand 1401 states and 1798 transitions. Second operand 6 states. [2020-12-22 08:52:50,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:50,949 INFO L93 Difference]: Finished difference Result 1990 states and 2570 transitions. [2020-12-22 08:52:50,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:52:50,950 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 86 [2020-12-22 08:52:50,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:50,957 INFO L225 Difference]: With dead ends: 1990 [2020-12-22 08:52:50,958 INFO L226 Difference]: Without dead ends: 1287 [2020-12-22 08:52:50,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:52:50,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2020-12-22 08:52:51,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1207. [2020-12-22 08:52:51,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1207 states. [2020-12-22 08:52:51,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1607 transitions. [2020-12-22 08:52:51,027 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1607 transitions. Word has length 86 [2020-12-22 08:52:51,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:51,028 INFO L481 AbstractCegarLoop]: Abstraction has 1207 states and 1607 transitions. [2020-12-22 08:52:51,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:52:51,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1607 transitions. [2020-12-22 08:52:51,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-22 08:52:51,032 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:51,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:51,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:52:51,033 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:51,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:51,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1383981291, now seen corresponding path program 1 times [2020-12-22 08:52:51,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:51,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289350636] [2020-12-22 08:52:51,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:51,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:51,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289350636] [2020-12-22 08:52:51,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:51,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:52:51,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315354072] [2020-12-22 08:52:51,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:52:51,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:51,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:52:51,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:52:51,173 INFO L87 Difference]: Start difference. First operand 1207 states and 1607 transitions. Second operand 5 states. [2020-12-22 08:52:52,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:52,473 INFO L93 Difference]: Finished difference Result 1764 states and 2380 transitions. [2020-12-22 08:52:52,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:52:52,473 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 86 [2020-12-22 08:52:52,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:52,483 INFO L225 Difference]: With dead ends: 1764 [2020-12-22 08:52:52,483 INFO L226 Difference]: Without dead ends: 1143 [2020-12-22 08:52:52,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:52:52,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2020-12-22 08:52:52,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 1143. [2020-12-22 08:52:52,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1143 states. [2020-12-22 08:52:52,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1533 transitions. [2020-12-22 08:52:52,563 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1533 transitions. Word has length 86 [2020-12-22 08:52:52,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:52,564 INFO L481 AbstractCegarLoop]: Abstraction has 1143 states and 1533 transitions. [2020-12-22 08:52:52,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:52:52,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1533 transitions. [2020-12-22 08:52:52,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-22 08:52:52,568 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:52,568 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:52,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:52:52,569 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:52,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:52,570 INFO L82 PathProgramCache]: Analyzing trace with hash -2122452637, now seen corresponding path program 1 times [2020-12-22 08:52:52,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:52,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032791805] [2020-12-22 08:52:52,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:52,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:52,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032791805] [2020-12-22 08:52:52,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:52,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:52:52,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849592441] [2020-12-22 08:52:52,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:52:52,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:52,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:52:52,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:52:52,751 INFO L87 Difference]: Start difference. First operand 1143 states and 1533 transitions. Second operand 6 states. [2020-12-22 08:52:53,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:53,995 INFO L93 Difference]: Finished difference Result 2226 states and 3040 transitions. [2020-12-22 08:52:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:52:53,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2020-12-22 08:52:53,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:54,005 INFO L225 Difference]: With dead ends: 2226 [2020-12-22 08:52:54,006 INFO L226 Difference]: Without dead ends: 1577 [2020-12-22 08:52:54,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:52:54,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2020-12-22 08:52:54,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 1497. [2020-12-22 08:52:54,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2020-12-22 08:52:54,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2094 transitions. [2020-12-22 08:52:54,113 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2094 transitions. Word has length 87 [2020-12-22 08:52:54,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:54,114 INFO L481 AbstractCegarLoop]: Abstraction has 1497 states and 2094 transitions. [2020-12-22 08:52:54,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:52:54,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2094 transitions. [2020-12-22 08:52:54,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 08:52:54,118 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:54,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:54,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:52:54,119 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:54,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:54,120 INFO L82 PathProgramCache]: Analyzing trace with hash 523148810, now seen corresponding path program 1 times [2020-12-22 08:52:54,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:54,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132207380] [2020-12-22 08:52:54,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:54,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:54,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132207380] [2020-12-22 08:52:54,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:54,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:52:54,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841513771] [2020-12-22 08:52:54,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:52:54,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:54,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:52:54,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:52:54,300 INFO L87 Difference]: Start difference. First operand 1497 states and 2094 transitions. Second operand 5 states. [2020-12-22 08:52:54,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:54,996 INFO L93 Difference]: Finished difference Result 2095 states and 2946 transitions. [2020-12-22 08:52:54,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:52:54,996 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2020-12-22 08:52:54,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:55,004 INFO L225 Difference]: With dead ends: 2095 [2020-12-22 08:52:55,004 INFO L226 Difference]: Without dead ends: 1345 [2020-12-22 08:52:55,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:52:55,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2020-12-22 08:52:55,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1345. [2020-12-22 08:52:55,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1345 states. [2020-12-22 08:52:55,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1894 transitions. [2020-12-22 08:52:55,087 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1894 transitions. Word has length 88 [2020-12-22 08:52:55,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:55,088 INFO L481 AbstractCegarLoop]: Abstraction has 1345 states and 1894 transitions. [2020-12-22 08:52:55,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:52:55,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1894 transitions. [2020-12-22 08:52:55,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-12-22 08:52:55,093 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:55,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:55,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:52:55,098 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:55,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:55,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1391912509, now seen corresponding path program 1 times [2020-12-22 08:52:55,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:55,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109546847] [2020-12-22 08:52:55,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:55,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:55,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109546847] [2020-12-22 08:52:55,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:55,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:52:55,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216093734] [2020-12-22 08:52:55,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:52:55,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:55,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:52:55,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:52:55,272 INFO L87 Difference]: Start difference. First operand 1345 states and 1894 transitions. Second operand 5 states. [2020-12-22 08:52:55,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:55,890 INFO L93 Difference]: Finished difference Result 2088 states and 2957 transitions. [2020-12-22 08:52:55,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:52:55,891 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2020-12-22 08:52:55,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:55,898 INFO L225 Difference]: With dead ends: 2088 [2020-12-22 08:52:55,898 INFO L226 Difference]: Without dead ends: 1290 [2020-12-22 08:52:55,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:52:55,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2020-12-22 08:52:55,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1290. [2020-12-22 08:52:55,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1290 states. [2020-12-22 08:52:55,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 1822 transitions. [2020-12-22 08:52:55,978 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 1822 transitions. Word has length 89 [2020-12-22 08:52:55,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:55,978 INFO L481 AbstractCegarLoop]: Abstraction has 1290 states and 1822 transitions. [2020-12-22 08:52:55,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:52:55,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 1822 transitions. [2020-12-22 08:52:55,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 08:52:55,981 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:55,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:55,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:52:55,982 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:55,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:55,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1223915583, now seen corresponding path program 1 times [2020-12-22 08:52:55,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:55,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708990905] [2020-12-22 08:52:55,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:56,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:56,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708990905] [2020-12-22 08:52:56,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:56,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:56,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990580140] [2020-12-22 08:52:56,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:56,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:56,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:56,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:56,272 INFO L87 Difference]: Start difference. First operand 1290 states and 1822 transitions. Second operand 9 states. [2020-12-22 08:52:58,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:58,570 INFO L93 Difference]: Finished difference Result 2403 states and 3428 transitions. [2020-12-22 08:52:58,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:52:58,571 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 90 [2020-12-22 08:52:58,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:58,582 INFO L225 Difference]: With dead ends: 2403 [2020-12-22 08:52:58,582 INFO L226 Difference]: Without dead ends: 1952 [2020-12-22 08:52:58,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:52:58,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1952 states. [2020-12-22 08:52:58,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 1290. [2020-12-22 08:52:58,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1290 states. [2020-12-22 08:52:58,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 1821 transitions. [2020-12-22 08:52:58,695 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 1821 transitions. Word has length 90 [2020-12-22 08:52:58,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:58,696 INFO L481 AbstractCegarLoop]: Abstraction has 1290 states and 1821 transitions. [2020-12-22 08:52:58,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:58,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 1821 transitions. [2020-12-22 08:52:58,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 08:52:58,699 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:58,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:58,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:52:58,700 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:58,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:58,700 INFO L82 PathProgramCache]: Analyzing trace with hash -774148364, now seen corresponding path program 1 times [2020-12-22 08:52:58,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:58,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4372024] [2020-12-22 08:52:58,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:58,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:58,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4372024] [2020-12-22 08:52:58,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:58,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:58,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086229118] [2020-12-22 08:52:58,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:58,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:58,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:58,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:58,915 INFO L87 Difference]: Start difference. First operand 1290 states and 1821 transitions. Second operand 9 states. [2020-12-22 08:53:01,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:01,285 INFO L93 Difference]: Finished difference Result 3038 states and 4385 transitions. [2020-12-22 08:53:01,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:01,286 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 90 [2020-12-22 08:53:01,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:01,302 INFO L225 Difference]: With dead ends: 3038 [2020-12-22 08:53:01,302 INFO L226 Difference]: Without dead ends: 2682 [2020-12-22 08:53:01,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:01,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2020-12-22 08:53:01,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 1290. [2020-12-22 08:53:01,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1290 states. [2020-12-22 08:53:01,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 1820 transitions. [2020-12-22 08:53:01,430 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 1820 transitions. Word has length 90 [2020-12-22 08:53:01,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:01,431 INFO L481 AbstractCegarLoop]: Abstraction has 1290 states and 1820 transitions. [2020-12-22 08:53:01,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:01,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 1820 transitions. [2020-12-22 08:53:01,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 08:53:01,435 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:01,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:01,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:53:01,436 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:01,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:01,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1127184379, now seen corresponding path program 1 times [2020-12-22 08:53:01,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:01,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193267451] [2020-12-22 08:53:01,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:01,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:01,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193267451] [2020-12-22 08:53:01,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:01,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:53:01,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021092588] [2020-12-22 08:53:01,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:53:01,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:01,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:53:01,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:53:01,634 INFO L87 Difference]: Start difference. First operand 1290 states and 1820 transitions. Second operand 8 states. [2020-12-22 08:53:03,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:03,145 INFO L93 Difference]: Finished difference Result 2115 states and 2921 transitions. [2020-12-22 08:53:03,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 08:53:03,146 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 90 [2020-12-22 08:53:03,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:03,154 INFO L225 Difference]: With dead ends: 2115 [2020-12-22 08:53:03,154 INFO L226 Difference]: Without dead ends: 1478 [2020-12-22 08:53:03,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-12-22 08:53:03,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2020-12-22 08:53:03,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1017. [2020-12-22 08:53:03,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1017 states. [2020-12-22 08:53:03,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1414 transitions. [2020-12-22 08:53:03,278 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1414 transitions. Word has length 90 [2020-12-22 08:53:03,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:03,278 INFO L481 AbstractCegarLoop]: Abstraction has 1017 states and 1414 transitions. [2020-12-22 08:53:03,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:53:03,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1414 transitions. [2020-12-22 08:53:03,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 08:53:03,281 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:03,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:03,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:53:03,282 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:03,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:03,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1374831072, now seen corresponding path program 1 times [2020-12-22 08:53:03,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:03,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097128510] [2020-12-22 08:53:03,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:03,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:03,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097128510] [2020-12-22 08:53:03,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:03,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:03,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803914356] [2020-12-22 08:53:03,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:03,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:03,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:03,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:03,485 INFO L87 Difference]: Start difference. First operand 1017 states and 1414 transitions. Second operand 9 states. [2020-12-22 08:53:05,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:05,736 INFO L93 Difference]: Finished difference Result 2542 states and 3646 transitions. [2020-12-22 08:53:05,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:05,737 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-12-22 08:53:05,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:05,750 INFO L225 Difference]: With dead ends: 2542 [2020-12-22 08:53:05,750 INFO L226 Difference]: Without dead ends: 2231 [2020-12-22 08:53:05,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:53:05,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-12-22 08:53:05,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1017. [2020-12-22 08:53:05,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1017 states. [2020-12-22 08:53:05,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1413 transitions. [2020-12-22 08:53:05,909 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1413 transitions. Word has length 92 [2020-12-22 08:53:05,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:05,910 INFO L481 AbstractCegarLoop]: Abstraction has 1017 states and 1413 transitions. [2020-12-22 08:53:05,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:05,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1413 transitions. [2020-12-22 08:53:05,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 08:53:05,912 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:05,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:05,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:53:05,913 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:05,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:05,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1581467239, now seen corresponding path program 1 times [2020-12-22 08:53:05,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:05,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624730958] [2020-12-22 08:53:05,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:06,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:06,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624730958] [2020-12-22 08:53:06,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:06,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:06,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305591302] [2020-12-22 08:53:06,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:06,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:06,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:06,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:06,130 INFO L87 Difference]: Start difference. First operand 1017 states and 1413 transitions. Second operand 9 states. [2020-12-22 08:53:08,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:08,681 INFO L93 Difference]: Finished difference Result 2615 states and 3749 transitions. [2020-12-22 08:53:08,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:08,682 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-12-22 08:53:08,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:08,693 INFO L225 Difference]: With dead ends: 2615 [2020-12-22 08:53:08,693 INFO L226 Difference]: Without dead ends: 2254 [2020-12-22 08:53:08,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:08,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2020-12-22 08:53:08,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 1017. [2020-12-22 08:53:08,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1017 states. [2020-12-22 08:53:08,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1412 transitions. [2020-12-22 08:53:08,806 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1412 transitions. Word has length 92 [2020-12-22 08:53:08,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:08,807 INFO L481 AbstractCegarLoop]: Abstraction has 1017 states and 1412 transitions. [2020-12-22 08:53:08,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:08,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1412 transitions. [2020-12-22 08:53:08,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 08:53:08,809 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:08,810 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:08,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:53:08,810 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:08,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:08,811 INFO L82 PathProgramCache]: Analyzing trace with hash 510204798, now seen corresponding path program 1 times [2020-12-22 08:53:08,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:08,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074117012] [2020-12-22 08:53:08,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:09,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:09,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074117012] [2020-12-22 08:53:09,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:09,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:53:09,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487819572] [2020-12-22 08:53:09,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:53:09,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:09,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:53:09,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:53:09,073 INFO L87 Difference]: Start difference. First operand 1017 states and 1412 transitions. Second operand 11 states. [2020-12-22 08:53:12,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:12,555 INFO L93 Difference]: Finished difference Result 2324 states and 3299 transitions. [2020-12-22 08:53:12,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:53:12,555 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 92 [2020-12-22 08:53:12,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:12,563 INFO L225 Difference]: With dead ends: 2324 [2020-12-22 08:53:12,564 INFO L226 Difference]: Without dead ends: 1842 [2020-12-22 08:53:12,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2020-12-22 08:53:12,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2020-12-22 08:53:12,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1021. [2020-12-22 08:53:12,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2020-12-22 08:53:12,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1416 transitions. [2020-12-22 08:53:12,680 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1416 transitions. Word has length 92 [2020-12-22 08:53:12,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:12,681 INFO L481 AbstractCegarLoop]: Abstraction has 1021 states and 1416 transitions. [2020-12-22 08:53:12,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:53:12,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1416 transitions. [2020-12-22 08:53:12,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 08:53:12,684 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:12,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:12,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:53:12,684 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:12,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:12,685 INFO L82 PathProgramCache]: Analyzing trace with hash -496473703, now seen corresponding path program 1 times [2020-12-22 08:53:12,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:12,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816040615] [2020-12-22 08:53:12,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:12,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:12,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816040615] [2020-12-22 08:53:12,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:12,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:53:12,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138917700] [2020-12-22 08:53:12,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:53:12,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:12,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:53:12,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:53:12,943 INFO L87 Difference]: Start difference. First operand 1021 states and 1416 transitions. Second operand 11 states. [2020-12-22 08:53:17,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:17,975 INFO L93 Difference]: Finished difference Result 4619 states and 6733 transitions. [2020-12-22 08:53:17,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:53:17,975 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 92 [2020-12-22 08:53:17,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:17,990 INFO L225 Difference]: With dead ends: 4619 [2020-12-22 08:53:17,991 INFO L226 Difference]: Without dead ends: 4308 [2020-12-22 08:53:17,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:53:17,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4308 states. [2020-12-22 08:53:18,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4308 to 1025. [2020-12-22 08:53:18,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:53:18,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1420 transitions. [2020-12-22 08:53:18,144 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1420 transitions. Word has length 92 [2020-12-22 08:53:18,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:18,144 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1420 transitions. [2020-12-22 08:53:18,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:53:18,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1420 transitions. [2020-12-22 08:53:18,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 08:53:18,147 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:18,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:18,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:53:18,148 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:18,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:18,148 INFO L82 PathProgramCache]: Analyzing trace with hash 2138746040, now seen corresponding path program 1 times [2020-12-22 08:53:18,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:18,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598867534] [2020-12-22 08:53:18,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:18,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:18,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598867534] [2020-12-22 08:53:18,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:18,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:18,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234630280] [2020-12-22 08:53:18,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:18,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:18,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:18,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:18,333 INFO L87 Difference]: Start difference. First operand 1025 states and 1420 transitions. Second operand 9 states. [2020-12-22 08:53:21,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:21,003 INFO L93 Difference]: Finished difference Result 2541 states and 3643 transitions. [2020-12-22 08:53:21,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:21,004 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-12-22 08:53:21,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:21,014 INFO L225 Difference]: With dead ends: 2541 [2020-12-22 08:53:21,014 INFO L226 Difference]: Without dead ends: 2235 [2020-12-22 08:53:21,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:53:21,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2020-12-22 08:53:21,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 1025. [2020-12-22 08:53:21,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:53:21,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1419 transitions. [2020-12-22 08:53:21,162 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1419 transitions. Word has length 92 [2020-12-22 08:53:21,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:21,162 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1419 transitions. [2020-12-22 08:53:21,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:21,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1419 transitions. [2020-12-22 08:53:21,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 08:53:21,165 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:21,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:21,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:53:21,165 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:21,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:21,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1951823708, now seen corresponding path program 1 times [2020-12-22 08:53:21,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:21,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060261966] [2020-12-22 08:53:21,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:21,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:21,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060261966] [2020-12-22 08:53:21,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:21,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:21,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248262809] [2020-12-22 08:53:21,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:21,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:21,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:21,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:21,342 INFO L87 Difference]: Start difference. First operand 1025 states and 1419 transitions. Second operand 9 states. [2020-12-22 08:53:24,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:24,091 INFO L93 Difference]: Finished difference Result 2546 states and 3647 transitions. [2020-12-22 08:53:24,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:24,091 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-12-22 08:53:24,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:24,098 INFO L225 Difference]: With dead ends: 2546 [2020-12-22 08:53:24,098 INFO L226 Difference]: Without dead ends: 2235 [2020-12-22 08:53:24,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:53:24,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2020-12-22 08:53:24,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 1025. [2020-12-22 08:53:24,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:53:24,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1418 transitions. [2020-12-22 08:53:24,217 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1418 transitions. Word has length 92 [2020-12-22 08:53:24,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:24,218 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1418 transitions. [2020-12-22 08:53:24,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:24,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1418 transitions. [2020-12-22 08:53:24,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 08:53:24,220 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:24,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:24,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:53:24,221 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:24,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:24,221 INFO L82 PathProgramCache]: Analyzing trace with hash -761353428, now seen corresponding path program 1 times [2020-12-22 08:53:24,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:24,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810268787] [2020-12-22 08:53:24,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:24,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:24,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810268787] [2020-12-22 08:53:24,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:24,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:53:24,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474488878] [2020-12-22 08:53:24,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:53:24,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:24,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:53:24,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:53:24,463 INFO L87 Difference]: Start difference. First operand 1025 states and 1418 transitions. Second operand 11 states. [2020-12-22 08:53:30,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:30,960 INFO L93 Difference]: Finished difference Result 5082 states and 7415 transitions. [2020-12-22 08:53:30,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:53:30,960 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 92 [2020-12-22 08:53:30,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:30,976 INFO L225 Difference]: With dead ends: 5082 [2020-12-22 08:53:30,976 INFO L226 Difference]: Without dead ends: 4709 [2020-12-22 08:53:30,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:53:30,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4709 states. [2020-12-22 08:53:31,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4709 to 1029. [2020-12-22 08:53:31,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1029 states. [2020-12-22 08:53:31,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1422 transitions. [2020-12-22 08:53:31,155 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1422 transitions. Word has length 92 [2020-12-22 08:53:31,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:31,156 INFO L481 AbstractCegarLoop]: Abstraction has 1029 states and 1422 transitions. [2020-12-22 08:53:31,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:53:31,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1422 transitions. [2020-12-22 08:53:31,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:53:31,158 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:31,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:31,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:53:31,158 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:31,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:31,159 INFO L82 PathProgramCache]: Analyzing trace with hash -860313180, now seen corresponding path program 1 times [2020-12-22 08:53:31,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:31,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324006118] [2020-12-22 08:53:31,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:31,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:31,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324006118] [2020-12-22 08:53:31,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:31,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:31,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657983455] [2020-12-22 08:53:31,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:31,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:31,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:31,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:31,326 INFO L87 Difference]: Start difference. First operand 1029 states and 1422 transitions. Second operand 9 states. [2020-12-22 08:53:34,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:34,147 INFO L93 Difference]: Finished difference Result 2635 states and 3772 transitions. [2020-12-22 08:53:34,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:34,148 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-12-22 08:53:34,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:34,153 INFO L225 Difference]: With dead ends: 2635 [2020-12-22 08:53:34,153 INFO L226 Difference]: Without dead ends: 2262 [2020-12-22 08:53:34,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:34,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2020-12-22 08:53:34,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 1025. [2020-12-22 08:53:34,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:53:34,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1417 transitions. [2020-12-22 08:53:34,293 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1417 transitions. Word has length 93 [2020-12-22 08:53:34,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:34,294 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1417 transitions. [2020-12-22 08:53:34,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:34,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1417 transitions. [2020-12-22 08:53:34,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:53:34,296 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:34,296 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:34,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 08:53:34,296 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:34,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:34,297 INFO L82 PathProgramCache]: Analyzing trace with hash -2061707208, now seen corresponding path program 1 times [2020-12-22 08:53:34,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:34,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065936800] [2020-12-22 08:53:34,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:34,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:34,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065936800] [2020-12-22 08:53:34,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:34,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:34,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134610524] [2020-12-22 08:53:34,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:34,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:34,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:34,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:34,472 INFO L87 Difference]: Start difference. First operand 1025 states and 1417 transitions. Second operand 9 states. [2020-12-22 08:53:37,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:37,234 INFO L93 Difference]: Finished difference Result 2546 states and 3644 transitions. [2020-12-22 08:53:37,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:37,240 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-12-22 08:53:37,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:37,245 INFO L225 Difference]: With dead ends: 2546 [2020-12-22 08:53:37,245 INFO L226 Difference]: Without dead ends: 2235 [2020-12-22 08:53:37,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:53:37,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2020-12-22 08:53:37,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 1021. [2020-12-22 08:53:37,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2020-12-22 08:53:37,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1412 transitions. [2020-12-22 08:53:37,379 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1412 transitions. Word has length 93 [2020-12-22 08:53:37,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:37,379 INFO L481 AbstractCegarLoop]: Abstraction has 1021 states and 1412 transitions. [2020-12-22 08:53:37,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:37,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1412 transitions. [2020-12-22 08:53:37,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:53:37,381 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:37,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:37,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 08:53:37,382 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:37,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:37,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1352733135, now seen corresponding path program 1 times [2020-12-22 08:53:37,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:37,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891264754] [2020-12-22 08:53:37,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:37,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:37,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891264754] [2020-12-22 08:53:37,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:37,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:37,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856874707] [2020-12-22 08:53:37,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:37,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:37,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:37,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:37,588 INFO L87 Difference]: Start difference. First operand 1021 states and 1412 transitions. Second operand 9 states. [2020-12-22 08:53:39,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:39,619 INFO L93 Difference]: Finished difference Result 1940 states and 2760 transitions. [2020-12-22 08:53:39,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:53:39,620 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-12-22 08:53:39,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:39,622 INFO L225 Difference]: With dead ends: 1940 [2020-12-22 08:53:39,623 INFO L226 Difference]: Without dead ends: 1458 [2020-12-22 08:53:39,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:53:39,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2020-12-22 08:53:39,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1017. [2020-12-22 08:53:39,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1017 states. [2020-12-22 08:53:39,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1407 transitions. [2020-12-22 08:53:39,802 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1407 transitions. Word has length 93 [2020-12-22 08:53:39,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:39,803 INFO L481 AbstractCegarLoop]: Abstraction has 1017 states and 1407 transitions. [2020-12-22 08:53:39,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:39,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1407 transitions. [2020-12-22 08:53:39,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:53:39,805 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:39,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:39,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 08:53:39,806 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:39,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:39,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1776369767, now seen corresponding path program 1 times [2020-12-22 08:53:39,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:39,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292980521] [2020-12-22 08:53:39,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:40,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:40,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292980521] [2020-12-22 08:53:40,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:40,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:40,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052431521] [2020-12-22 08:53:40,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:40,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:40,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:40,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:40,007 INFO L87 Difference]: Start difference. First operand 1017 states and 1407 transitions. Second operand 9 states. [2020-12-22 08:53:42,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:42,654 INFO L93 Difference]: Finished difference Result 2551 states and 3647 transitions. [2020-12-22 08:53:42,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:42,654 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:53:42,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:42,658 INFO L225 Difference]: With dead ends: 2551 [2020-12-22 08:53:42,658 INFO L226 Difference]: Without dead ends: 2231 [2020-12-22 08:53:42,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:53:42,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-12-22 08:53:42,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1017. [2020-12-22 08:53:42,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1017 states. [2020-12-22 08:53:42,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1406 transitions. [2020-12-22 08:53:42,862 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1406 transitions. Word has length 94 [2020-12-22 08:53:42,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:42,863 INFO L481 AbstractCegarLoop]: Abstraction has 1017 states and 1406 transitions. [2020-12-22 08:53:42,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:42,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1406 transitions. [2020-12-22 08:53:42,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:53:42,864 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:42,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:42,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 08:53:42,865 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:42,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:42,865 INFO L82 PathProgramCache]: Analyzing trace with hash -583554037, now seen corresponding path program 1 times [2020-12-22 08:53:42,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:42,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102286133] [2020-12-22 08:53:42,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:43,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:43,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102286133] [2020-12-22 08:53:43,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:43,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:43,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989130814] [2020-12-22 08:53:43,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:43,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:43,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:43,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:43,051 INFO L87 Difference]: Start difference. First operand 1017 states and 1406 transitions. Second operand 9 states. [2020-12-22 08:53:46,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:46,049 INFO L93 Difference]: Finished difference Result 2545 states and 3659 transitions. [2020-12-22 08:53:46,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:53:46,050 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:53:46,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:46,061 INFO L225 Difference]: With dead ends: 2545 [2020-12-22 08:53:46,061 INFO L226 Difference]: Without dead ends: 2247 [2020-12-22 08:53:46,062 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:53:46,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2020-12-22 08:53:46,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 1017. [2020-12-22 08:53:46,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1017 states. [2020-12-22 08:53:46,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1405 transitions. [2020-12-22 08:53:46,259 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1405 transitions. Word has length 94 [2020-12-22 08:53:46,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:46,259 INFO L481 AbstractCegarLoop]: Abstraction has 1017 states and 1405 transitions. [2020-12-22 08:53:46,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:46,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1405 transitions. [2020-12-22 08:53:46,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:53:46,261 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:46,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:46,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 08:53:46,262 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:46,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:46,262 INFO L82 PathProgramCache]: Analyzing trace with hash -912166993, now seen corresponding path program 1 times [2020-12-22 08:53:46,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:46,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492907485] [2020-12-22 08:53:46,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:46,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:46,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492907485] [2020-12-22 08:53:46,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:46,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:53:46,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961606841] [2020-12-22 08:53:46,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:53:46,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:46,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:53:46,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:53:46,497 INFO L87 Difference]: Start difference. First operand 1017 states and 1405 transitions. Second operand 11 states. [2020-12-22 08:53:53,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:53,485 INFO L93 Difference]: Finished difference Result 5108 states and 7427 transitions. [2020-12-22 08:53:53,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:53:53,488 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 94 [2020-12-22 08:53:53,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:53,498 INFO L225 Difference]: With dead ends: 5108 [2020-12-22 08:53:53,499 INFO L226 Difference]: Without dead ends: 4718 [2020-12-22 08:53:53,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:53:53,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4718 states. [2020-12-22 08:53:53,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4718 to 1021. [2020-12-22 08:53:53,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2020-12-22 08:53:53,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1409 transitions. [2020-12-22 08:53:53,745 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1409 transitions. Word has length 94 [2020-12-22 08:53:53,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:53,746 INFO L481 AbstractCegarLoop]: Abstraction has 1021 states and 1409 transitions. [2020-12-22 08:53:53,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:53:53,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1409 transitions. [2020-12-22 08:53:53,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:53:53,748 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:53,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:53,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 08:53:53,748 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:53,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:53,749 INFO L82 PathProgramCache]: Analyzing trace with hash 108575604, now seen corresponding path program 1 times [2020-12-22 08:53:53,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:53,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301775165] [2020-12-22 08:53:53,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:53,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:53,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301775165] [2020-12-22 08:53:53,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:53,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:53,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953286271] [2020-12-22 08:53:53,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:53,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:53,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:53,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:53,940 INFO L87 Difference]: Start difference. First operand 1021 states and 1409 transitions. Second operand 9 states. [2020-12-22 08:53:57,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:57,164 INFO L93 Difference]: Finished difference Result 2549 states and 3661 transitions. [2020-12-22 08:53:57,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:53:57,164 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:53:57,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:57,168 INFO L225 Difference]: With dead ends: 2549 [2020-12-22 08:53:57,168 INFO L226 Difference]: Without dead ends: 2251 [2020-12-22 08:53:57,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:53:57,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2251 states. [2020-12-22 08:53:57,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2251 to 1021. [2020-12-22 08:53:57,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2020-12-22 08:53:57,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1408 transitions. [2020-12-22 08:53:57,412 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1408 transitions. Word has length 94 [2020-12-22 08:53:57,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:57,412 INFO L481 AbstractCegarLoop]: Abstraction has 1021 states and 1408 transitions. [2020-12-22 08:53:57,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:57,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1408 transitions. [2020-12-22 08:53:57,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:53:57,414 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:57,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:57,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 08:53:57,415 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:57,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:57,415 INFO L82 PathProgramCache]: Analyzing trace with hash -905490814, now seen corresponding path program 1 times [2020-12-22 08:53:57,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:57,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326618302] [2020-12-22 08:53:57,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:57,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:57,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326618302] [2020-12-22 08:53:57,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:57,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:53:57,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056780782] [2020-12-22 08:53:57,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:53:57,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:57,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:53:57,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:53:57,708 INFO L87 Difference]: Start difference. First operand 1021 states and 1408 transitions. Second operand 11 states. [2020-12-22 08:54:04,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:04,095 INFO L93 Difference]: Finished difference Result 4637 states and 6737 transitions. [2020-12-22 08:54:04,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:54:04,096 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 94 [2020-12-22 08:54:04,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:04,103 INFO L225 Difference]: With dead ends: 4637 [2020-12-22 08:54:04,104 INFO L226 Difference]: Without dead ends: 4317 [2020-12-22 08:54:04,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:54:04,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4317 states. [2020-12-22 08:54:04,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4317 to 1025. [2020-12-22 08:54:04,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:54:04,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1412 transitions. [2020-12-22 08:54:04,383 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1412 transitions. Word has length 94 [2020-12-22 08:54:04,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:04,384 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1412 transitions. [2020-12-22 08:54:04,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:54:04,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1412 transitions. [2020-12-22 08:54:04,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:54:04,386 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:04,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:04,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 08:54:04,386 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:04,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:04,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1059388859, now seen corresponding path program 1 times [2020-12-22 08:54:04,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:04,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385623137] [2020-12-22 08:54:04,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:04,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:04,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385623137] [2020-12-22 08:54:04,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:04,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:54:04,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768777943] [2020-12-22 08:54:04,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:54:04,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:04,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:54:04,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:54:04,720 INFO L87 Difference]: Start difference. First operand 1025 states and 1412 transitions. Second operand 12 states. [2020-12-22 08:54:10,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:10,548 INFO L93 Difference]: Finished difference Result 2909 states and 4152 transitions. [2020-12-22 08:54:10,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:54:10,549 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2020-12-22 08:54:10,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:10,553 INFO L225 Difference]: With dead ends: 2909 [2020-12-22 08:54:10,553 INFO L226 Difference]: Without dead ends: 2611 [2020-12-22 08:54:10,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:54:10,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2020-12-22 08:54:10,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 1025. [2020-12-22 08:54:10,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:54:10,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1411 transitions. [2020-12-22 08:54:10,767 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1411 transitions. Word has length 94 [2020-12-22 08:54:10,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:10,768 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1411 transitions. [2020-12-22 08:54:10,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:54:10,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1411 transitions. [2020-12-22 08:54:10,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:54:10,769 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:10,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:10,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 08:54:10,769 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:10,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:10,770 INFO L82 PathProgramCache]: Analyzing trace with hash 389206872, now seen corresponding path program 1 times [2020-12-22 08:54:10,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:10,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794641269] [2020-12-22 08:54:10,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:10,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:10,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794641269] [2020-12-22 08:54:10,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:10,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:10,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37720310] [2020-12-22 08:54:10,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:10,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:10,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:10,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:10,952 INFO L87 Difference]: Start difference. First operand 1025 states and 1411 transitions. Second operand 9 states. [2020-12-22 08:54:14,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:14,283 INFO L93 Difference]: Finished difference Result 2549 states and 3660 transitions. [2020-12-22 08:54:14,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:54:14,283 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:54:14,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:14,286 INFO L225 Difference]: With dead ends: 2549 [2020-12-22 08:54:14,286 INFO L226 Difference]: Without dead ends: 2255 [2020-12-22 08:54:14,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:54:14,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2255 states. [2020-12-22 08:54:14,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2255 to 1025. [2020-12-22 08:54:14,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:54:14,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1410 transitions. [2020-12-22 08:54:14,568 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1410 transitions. Word has length 94 [2020-12-22 08:54:14,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:14,569 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1410 transitions. [2020-12-22 08:54:14,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:14,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1410 transitions. [2020-12-22 08:54:14,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:54:14,570 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:14,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:14,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 08:54:14,570 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:14,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:14,571 INFO L82 PathProgramCache]: Analyzing trace with hash -66481708, now seen corresponding path program 1 times [2020-12-22 08:54:14,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:14,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890745965] [2020-12-22 08:54:14,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:14,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:14,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890745965] [2020-12-22 08:54:14,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:14,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:54:14,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177559663] [2020-12-22 08:54:14,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:54:14,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:14,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:54:14,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:54:14,864 INFO L87 Difference]: Start difference. First operand 1025 states and 1410 transitions. Second operand 12 states. [2020-12-22 08:54:21,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:21,222 INFO L93 Difference]: Finished difference Result 2909 states and 4150 transitions. [2020-12-22 08:54:21,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:54:21,223 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2020-12-22 08:54:21,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:21,226 INFO L225 Difference]: With dead ends: 2909 [2020-12-22 08:54:21,226 INFO L226 Difference]: Without dead ends: 2611 [2020-12-22 08:54:21,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:54:21,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2020-12-22 08:54:21,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 1025. [2020-12-22 08:54:21,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:54:21,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1409 transitions. [2020-12-22 08:54:21,508 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1409 transitions. Word has length 94 [2020-12-22 08:54:21,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:21,508 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1409 transitions. [2020-12-22 08:54:21,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:54:21,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1409 transitions. [2020-12-22 08:54:21,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:54:21,510 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:21,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:21,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 08:54:21,510 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:21,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:21,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1010519460, now seen corresponding path program 1 times [2020-12-22 08:54:21,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:21,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794049154] [2020-12-22 08:54:21,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:21,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:21,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794049154] [2020-12-22 08:54:21,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:21,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:21,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826097485] [2020-12-22 08:54:21,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:21,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:21,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:21,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:21,705 INFO L87 Difference]: Start difference. First operand 1025 states and 1409 transitions. Second operand 9 states. [2020-12-22 08:54:24,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:24,930 INFO L93 Difference]: Finished difference Result 2549 states and 3658 transitions. [2020-12-22 08:54:24,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:54:24,930 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:54:24,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:24,932 INFO L225 Difference]: With dead ends: 2549 [2020-12-22 08:54:24,932 INFO L226 Difference]: Without dead ends: 2255 [2020-12-22 08:54:24,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:54:24,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2255 states. [2020-12-22 08:54:25,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2255 to 1025. [2020-12-22 08:54:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:54:25,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1408 transitions. [2020-12-22 08:54:25,109 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1408 transitions. Word has length 94 [2020-12-22 08:54:25,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:25,109 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1408 transitions. [2020-12-22 08:54:25,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:25,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1408 transitions. [2020-12-22 08:54:25,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:54:25,111 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:25,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:25,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-22 08:54:25,111 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:25,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:25,112 INFO L82 PathProgramCache]: Analyzing trace with hash -4191139, now seen corresponding path program 1 times [2020-12-22 08:54:25,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:25,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083141203] [2020-12-22 08:54:25,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:25,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:25,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083141203] [2020-12-22 08:54:25,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:25,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:54:25,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541676459] [2020-12-22 08:54:25,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:54:25,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:25,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:54:25,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:54:25,405 INFO L87 Difference]: Start difference. First operand 1025 states and 1408 transitions. Second operand 12 states. [2020-12-22 08:54:32,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:32,183 INFO L93 Difference]: Finished difference Result 2901 states and 4142 transitions. [2020-12-22 08:54:32,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:54:32,184 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2020-12-22 08:54:32,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:32,186 INFO L225 Difference]: With dead ends: 2901 [2020-12-22 08:54:32,186 INFO L226 Difference]: Without dead ends: 2607 [2020-12-22 08:54:32,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:54:32,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2607 states. [2020-12-22 08:54:32,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2607 to 1025. [2020-12-22 08:54:32,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:54:32,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1407 transitions. [2020-12-22 08:54:32,378 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1407 transitions. Word has length 94 [2020-12-22 08:54:32,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:32,379 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1407 transitions. [2020-12-22 08:54:32,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:54:32,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1407 transitions. [2020-12-22 08:54:32,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:54:32,381 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:32,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:32,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-22 08:54:32,381 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:32,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:32,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1834155361, now seen corresponding path program 1 times [2020-12-22 08:54:32,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:32,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881140387] [2020-12-22 08:54:32,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:32,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:32,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881140387] [2020-12-22 08:54:32,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:32,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:54:32,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512748454] [2020-12-22 08:54:32,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:54:32,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:32,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:54:32,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:54:32,681 INFO L87 Difference]: Start difference. First operand 1025 states and 1407 transitions. Second operand 12 states. [2020-12-22 08:54:38,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:38,734 INFO L93 Difference]: Finished difference Result 2909 states and 4149 transitions. [2020-12-22 08:54:38,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:54:38,735 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2020-12-22 08:54:38,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:38,738 INFO L225 Difference]: With dead ends: 2909 [2020-12-22 08:54:38,738 INFO L226 Difference]: Without dead ends: 2611 [2020-12-22 08:54:38,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:54:38,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2020-12-22 08:54:38,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 1025. [2020-12-22 08:54:38,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:54:38,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1406 transitions. [2020-12-22 08:54:38,935 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1406 transitions. Word has length 94 [2020-12-22 08:54:38,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:38,935 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1406 transitions. [2020-12-22 08:54:38,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:54:38,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1406 transitions. [2020-12-22 08:54:38,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:54:38,937 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:38,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:38,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-22 08:54:38,937 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:38,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:38,937 INFO L82 PathProgramCache]: Analyzing trace with hash -472603347, now seen corresponding path program 1 times [2020-12-22 08:54:38,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:38,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941304750] [2020-12-22 08:54:38,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:39,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:39,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941304750] [2020-12-22 08:54:39,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:39,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:39,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934563135] [2020-12-22 08:54:39,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:39,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:39,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:39,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:39,158 INFO L87 Difference]: Start difference. First operand 1025 states and 1406 transitions. Second operand 9 states. [2020-12-22 08:54:42,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:42,672 INFO L93 Difference]: Finished difference Result 2549 states and 3655 transitions. [2020-12-22 08:54:42,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:54:42,672 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:54:42,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:42,675 INFO L225 Difference]: With dead ends: 2549 [2020-12-22 08:54:42,675 INFO L226 Difference]: Without dead ends: 2255 [2020-12-22 08:54:42,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:54:42,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2255 states. [2020-12-22 08:54:42,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2255 to 1025. [2020-12-22 08:54:42,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:54:42,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1405 transitions. [2020-12-22 08:54:42,873 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1405 transitions. Word has length 94 [2020-12-22 08:54:42,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:42,873 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1405 transitions. [2020-12-22 08:54:42,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:42,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1405 transitions. [2020-12-22 08:54:42,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:54:42,875 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:42,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:42,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-22 08:54:42,875 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:42,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:42,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1387862169, now seen corresponding path program 1 times [2020-12-22 08:54:42,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:42,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300502147] [2020-12-22 08:54:42,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:43,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:43,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300502147] [2020-12-22 08:54:43,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:43,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:54:43,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628670030] [2020-12-22 08:54:43,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:54:43,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:43,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:54:43,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:54:43,148 INFO L87 Difference]: Start difference. First operand 1025 states and 1405 transitions. Second operand 11 states. [2020-12-22 08:54:49,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:49,735 INFO L93 Difference]: Finished difference Result 4637 states and 6731 transitions. [2020-12-22 08:54:49,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:54:49,736 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 94 [2020-12-22 08:54:49,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:49,739 INFO L225 Difference]: With dead ends: 4637 [2020-12-22 08:54:49,739 INFO L226 Difference]: Without dead ends: 4317 [2020-12-22 08:54:49,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:54:49,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4317 states. [2020-12-22 08:54:49,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4317 to 1029. [2020-12-22 08:54:49,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1029 states. [2020-12-22 08:54:49,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1409 transitions. [2020-12-22 08:54:49,949 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1409 transitions. Word has length 94 [2020-12-22 08:54:49,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:49,949 INFO L481 AbstractCegarLoop]: Abstraction has 1029 states and 1409 transitions. [2020-12-22 08:54:49,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:54:49,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1409 transitions. [2020-12-22 08:54:49,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:54:49,950 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:49,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:49,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-22 08:54:49,951 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:49,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:49,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1262668072, now seen corresponding path program 1 times [2020-12-22 08:54:49,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:49,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788391131] [2020-12-22 08:54:49,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:50,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:50,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788391131] [2020-12-22 08:54:50,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:50,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:50,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336920457] [2020-12-22 08:54:50,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:50,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:50,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:50,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:50,142 INFO L87 Difference]: Start difference. First operand 1029 states and 1409 transitions. Second operand 9 states. [2020-12-22 08:54:53,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:53,792 INFO L93 Difference]: Finished difference Result 2557 states and 3662 transitions. [2020-12-22 08:54:53,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:54:53,793 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:54:53,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:53,795 INFO L225 Difference]: With dead ends: 2557 [2020-12-22 08:54:53,796 INFO L226 Difference]: Without dead ends: 2259 [2020-12-22 08:54:53,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:54:53,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2259 states. [2020-12-22 08:54:53,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2259 to 1029. [2020-12-22 08:54:53,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1029 states. [2020-12-22 08:54:53,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1408 transitions. [2020-12-22 08:54:54,000 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1408 transitions. Word has length 94 [2020-12-22 08:54:54,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:54,000 INFO L481 AbstractCegarLoop]: Abstraction has 1029 states and 1408 transitions. [2020-12-22 08:54:54,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:54,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1408 transitions. [2020-12-22 08:54:54,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:54:54,002 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:54,002 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:54,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-22 08:54:54,002 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:54,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:54,002 INFO L82 PathProgramCache]: Analyzing trace with hash -748154859, now seen corresponding path program 1 times [2020-12-22 08:54:54,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:54,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721711545] [2020-12-22 08:54:54,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:54,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:54,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721711545] [2020-12-22 08:54:54,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:54,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:54,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101981563] [2020-12-22 08:54:54,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:54,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:54,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:54,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:54,170 INFO L87 Difference]: Start difference. First operand 1029 states and 1408 transitions. Second operand 9 states. [2020-12-22 08:54:57,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:57,745 INFO L93 Difference]: Finished difference Result 2656 states and 3770 transitions. [2020-12-22 08:54:57,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:54:57,746 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:54:57,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:57,748 INFO L225 Difference]: With dead ends: 2656 [2020-12-22 08:54:57,749 INFO L226 Difference]: Without dead ends: 2266 [2020-12-22 08:54:57,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:54:57,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2266 states. [2020-12-22 08:54:58,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2266 to 1025. [2020-12-22 08:54:58,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:54:58,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1403 transitions. [2020-12-22 08:54:58,027 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1403 transitions. Word has length 95 [2020-12-22 08:54:58,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:58,027 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1403 transitions. [2020-12-22 08:54:58,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:58,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1403 transitions. [2020-12-22 08:54:58,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:54:58,028 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:58,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:58,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-22 08:54:58,029 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:58,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:58,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1316548243, now seen corresponding path program 1 times [2020-12-22 08:54:58,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:58,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303947667] [2020-12-22 08:54:58,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:58,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:58,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303947667] [2020-12-22 08:54:58,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:58,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:58,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748202308] [2020-12-22 08:54:58,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:58,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:58,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:58,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:58,208 INFO L87 Difference]: Start difference. First operand 1025 states and 1403 transitions. Second operand 9 states. [2020-12-22 08:55:01,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:01,850 INFO L93 Difference]: Finished difference Result 2553 states and 3655 transitions. [2020-12-22 08:55:01,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:55:01,851 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:55:01,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:01,853 INFO L225 Difference]: With dead ends: 2553 [2020-12-22 08:55:01,853 INFO L226 Difference]: Without dead ends: 2255 [2020-12-22 08:55:01,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:55:01,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2255 states. [2020-12-22 08:55:02,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2255 to 1025. [2020-12-22 08:55:02,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:55:02,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1402 transitions. [2020-12-22 08:55:02,058 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1402 transitions. Word has length 95 [2020-12-22 08:55:02,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:02,058 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1402 transitions. [2020-12-22 08:55:02,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:02,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1402 transitions. [2020-12-22 08:55:02,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:55:02,060 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:02,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:02,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-22 08:55:02,060 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:02,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:02,061 INFO L82 PathProgramCache]: Analyzing trace with hash 946965281, now seen corresponding path program 1 times [2020-12-22 08:55:02,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:02,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826227581] [2020-12-22 08:55:02,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:02,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:02,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826227581] [2020-12-22 08:55:02,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:02,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:02,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146007066] [2020-12-22 08:55:02,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:02,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:02,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:02,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:02,235 INFO L87 Difference]: Start difference. First operand 1025 states and 1402 transitions. Second operand 9 states. [2020-12-22 08:55:05,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:05,986 INFO L93 Difference]: Finished difference Result 2551 states and 3626 transitions. [2020-12-22 08:55:05,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:55:05,987 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:55:05,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:05,989 INFO L225 Difference]: With dead ends: 2551 [2020-12-22 08:55:05,990 INFO L226 Difference]: Without dead ends: 2231 [2020-12-22 08:55:05,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:55:05,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-12-22 08:55:06,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1021. [2020-12-22 08:55:06,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2020-12-22 08:55:06,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1397 transitions. [2020-12-22 08:55:06,256 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1397 transitions. Word has length 95 [2020-12-22 08:55:06,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:06,257 INFO L481 AbstractCegarLoop]: Abstraction has 1021 states and 1397 transitions. [2020-12-22 08:55:06,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:06,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1397 transitions. [2020-12-22 08:55:06,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:55:06,258 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:06,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:06,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-22 08:55:06,258 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:06,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:06,259 INFO L82 PathProgramCache]: Analyzing trace with hash 2144015537, now seen corresponding path program 1 times [2020-12-22 08:55:06,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:06,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991708113] [2020-12-22 08:55:06,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:06,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:06,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991708113] [2020-12-22 08:55:06,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:06,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:06,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166440943] [2020-12-22 08:55:06,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:06,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:06,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:06,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:06,448 INFO L87 Difference]: Start difference. First operand 1021 states and 1397 transitions. Second operand 9 states. [2020-12-22 08:55:10,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:10,084 INFO L93 Difference]: Finished difference Result 2549 states and 3649 transitions. [2020-12-22 08:55:10,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:55:10,085 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:55:10,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:10,087 INFO L225 Difference]: With dead ends: 2549 [2020-12-22 08:55:10,087 INFO L226 Difference]: Without dead ends: 2251 [2020-12-22 08:55:10,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:55:10,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2251 states. [2020-12-22 08:55:10,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2251 to 1021. [2020-12-22 08:55:10,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2020-12-22 08:55:10,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1396 transitions. [2020-12-22 08:55:10,306 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1396 transitions. Word has length 95 [2020-12-22 08:55:10,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:10,307 INFO L481 AbstractCegarLoop]: Abstraction has 1021 states and 1396 transitions. [2020-12-22 08:55:10,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:10,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1396 transitions. [2020-12-22 08:55:10,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:55:10,309 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:10,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:10,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-22 08:55:10,309 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:10,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:10,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1517880925, now seen corresponding path program 1 times [2020-12-22 08:55:10,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:10,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943083649] [2020-12-22 08:55:10,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:10,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:10,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943083649] [2020-12-22 08:55:10,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:10,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:10,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487300881] [2020-12-22 08:55:10,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:10,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:10,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:10,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:10,524 INFO L87 Difference]: Start difference. First operand 1021 states and 1396 transitions. Second operand 9 states. [2020-12-22 08:55:14,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:14,398 INFO L93 Difference]: Finished difference Result 2545 states and 3645 transitions. [2020-12-22 08:55:14,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:55:14,399 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:55:14,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:14,401 INFO L225 Difference]: With dead ends: 2545 [2020-12-22 08:55:14,401 INFO L226 Difference]: Without dead ends: 2251 [2020-12-22 08:55:14,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:55:14,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2251 states. [2020-12-22 08:55:14,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2251 to 1021. [2020-12-22 08:55:14,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2020-12-22 08:55:14,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1395 transitions. [2020-12-22 08:55:14,661 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1395 transitions. Word has length 95 [2020-12-22 08:55:14,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:14,662 INFO L481 AbstractCegarLoop]: Abstraction has 1021 states and 1395 transitions. [2020-12-22 08:55:14,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:14,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1395 transitions. [2020-12-22 08:55:14,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:55:14,663 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:14,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:14,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-22 08:55:14,663 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:14,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:14,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1778839813, now seen corresponding path program 1 times [2020-12-22 08:55:14,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:14,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591752646] [2020-12-22 08:55:14,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:14,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:14,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591752646] [2020-12-22 08:55:14,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:14,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:14,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960673708] [2020-12-22 08:55:14,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:14,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:14,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:14,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:14,849 INFO L87 Difference]: Start difference. First operand 1021 states and 1395 transitions. Second operand 9 states. [2020-12-22 08:55:18,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:18,964 INFO L93 Difference]: Finished difference Result 2544 states and 3643 transitions. [2020-12-22 08:55:18,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:55:18,965 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:55:18,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:18,968 INFO L225 Difference]: With dead ends: 2544 [2020-12-22 08:55:18,968 INFO L226 Difference]: Without dead ends: 2251 [2020-12-22 08:55:18,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:55:18,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2251 states. [2020-12-22 08:55:19,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2251 to 1021. [2020-12-22 08:55:19,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2020-12-22 08:55:19,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1394 transitions. [2020-12-22 08:55:19,271 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1394 transitions. Word has length 95 [2020-12-22 08:55:19,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:19,271 INFO L481 AbstractCegarLoop]: Abstraction has 1021 states and 1394 transitions. [2020-12-22 08:55:19,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:19,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1394 transitions. [2020-12-22 08:55:19,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:55:19,273 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:19,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:19,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-12-22 08:55:19,273 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:19,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:19,273 INFO L82 PathProgramCache]: Analyzing trace with hash -413193078, now seen corresponding path program 1 times [2020-12-22 08:55:19,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:19,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741225914] [2020-12-22 08:55:19,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:19,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:19,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741225914] [2020-12-22 08:55:19,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:19,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:19,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274869614] [2020-12-22 08:55:19,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:19,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:19,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:19,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:19,445 INFO L87 Difference]: Start difference. First operand 1021 states and 1394 transitions. Second operand 9 states. [2020-12-22 08:55:23,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:23,725 INFO L93 Difference]: Finished difference Result 2549 states and 3647 transitions. [2020-12-22 08:55:23,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:55:23,726 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:55:23,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:23,728 INFO L225 Difference]: With dead ends: 2549 [2020-12-22 08:55:23,728 INFO L226 Difference]: Without dead ends: 2251 [2020-12-22 08:55:23,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:55:23,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2251 states. [2020-12-22 08:55:23,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2251 to 1021. [2020-12-22 08:55:23,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2020-12-22 08:55:23,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1393 transitions. [2020-12-22 08:55:23,952 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1393 transitions. Word has length 95 [2020-12-22 08:55:23,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:23,952 INFO L481 AbstractCegarLoop]: Abstraction has 1021 states and 1393 transitions. [2020-12-22 08:55:23,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:23,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1393 transitions. [2020-12-22 08:55:23,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:55:23,953 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:23,954 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:23,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-12-22 08:55:23,954 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:23,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:23,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1628396825, now seen corresponding path program 1 times [2020-12-22 08:55:23,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:23,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366958761] [2020-12-22 08:55:23,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:24,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:24,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366958761] [2020-12-22 08:55:24,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:24,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:24,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284263366] [2020-12-22 08:55:24,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:24,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:24,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:24,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:24,145 INFO L87 Difference]: Start difference. First operand 1021 states and 1393 transitions. Second operand 9 states. [2020-12-22 08:55:28,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:28,339 INFO L93 Difference]: Finished difference Result 2551 states and 3622 transitions. [2020-12-22 08:55:28,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:55:28,340 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:55:28,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:28,342 INFO L225 Difference]: With dead ends: 2551 [2020-12-22 08:55:28,342 INFO L226 Difference]: Without dead ends: 2231 [2020-12-22 08:55:28,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:55:28,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-12-22 08:55:28,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1017. [2020-12-22 08:55:28,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1017 states. [2020-12-22 08:55:28,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1388 transitions. [2020-12-22 08:55:28,595 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1388 transitions. Word has length 95 [2020-12-22 08:55:28,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:28,595 INFO L481 AbstractCegarLoop]: Abstraction has 1017 states and 1388 transitions. [2020-12-22 08:55:28,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:28,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1388 transitions. [2020-12-22 08:55:28,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:55:28,596 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:28,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:28,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-12-22 08:55:28,597 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:28,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:28,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1915466444, now seen corresponding path program 1 times [2020-12-22 08:55:28,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:28,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649508680] [2020-12-22 08:55:28,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:28,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:28,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649508680] [2020-12-22 08:55:28,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:28,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:28,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676208894] [2020-12-22 08:55:28,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:28,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:28,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:28,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:28,782 INFO L87 Difference]: Start difference. First operand 1017 states and 1388 transitions. Second operand 9 states. [2020-12-22 08:55:32,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:32,893 INFO L93 Difference]: Finished difference Result 2550 states and 3645 transitions. [2020-12-22 08:55:32,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:55:32,895 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:55:32,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:32,897 INFO L225 Difference]: With dead ends: 2550 [2020-12-22 08:55:32,898 INFO L226 Difference]: Without dead ends: 2247 [2020-12-22 08:55:32,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:55:32,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2020-12-22 08:55:33,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 1017. [2020-12-22 08:55:33,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1017 states. [2020-12-22 08:55:33,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1387 transitions. [2020-12-22 08:55:33,139 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1387 transitions. Word has length 96 [2020-12-22 08:55:33,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:33,139 INFO L481 AbstractCegarLoop]: Abstraction has 1017 states and 1387 transitions. [2020-12-22 08:55:33,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:33,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1387 transitions. [2020-12-22 08:55:33,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:55:33,140 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:33,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:33,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-12-22 08:55:33,141 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:33,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:33,141 INFO L82 PathProgramCache]: Analyzing trace with hash 747746075, now seen corresponding path program 1 times [2020-12-22 08:55:33,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:33,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404872798] [2020-12-22 08:55:33,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:33,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:33,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404872798] [2020-12-22 08:55:33,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:33,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:33,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068614703] [2020-12-22 08:55:33,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:33,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:33,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:33,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:33,313 INFO L87 Difference]: Start difference. First operand 1017 states and 1387 transitions. Second operand 9 states. [2020-12-22 08:55:37,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:37,085 INFO L93 Difference]: Finished difference Result 2458 states and 3479 transitions. [2020-12-22 08:55:37,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:55:37,086 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:55:37,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:37,089 INFO L225 Difference]: With dead ends: 2458 [2020-12-22 08:55:37,089 INFO L226 Difference]: Without dead ends: 2167 [2020-12-22 08:55:37,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:55:37,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2020-12-22 08:55:37,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 1017. [2020-12-22 08:55:37,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1017 states. [2020-12-22 08:55:37,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1386 transitions. [2020-12-22 08:55:37,362 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1386 transitions. Word has length 96 [2020-12-22 08:55:37,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:37,362 INFO L481 AbstractCegarLoop]: Abstraction has 1017 states and 1386 transitions. [2020-12-22 08:55:37,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:37,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1386 transitions. [2020-12-22 08:55:37,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:55:37,364 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:37,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:37,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-12-22 08:55:37,365 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:37,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:37,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1896440013, now seen corresponding path program 1 times [2020-12-22 08:55:37,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:37,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492092232] [2020-12-22 08:55:37,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:37,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:37,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492092232] [2020-12-22 08:55:37,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:37,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:55:37,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403335600] [2020-12-22 08:55:37,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:55:37,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:37,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:55:37,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:55:37,605 INFO L87 Difference]: Start difference. First operand 1017 states and 1386 transitions. Second operand 11 states. [2020-12-22 08:55:38,237 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-12-22 08:55:47,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:47,193 INFO L93 Difference]: Finished difference Result 5553 states and 8045 transitions. [2020-12-22 08:55:47,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 08:55:47,194 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 96 [2020-12-22 08:55:47,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:47,199 INFO L225 Difference]: With dead ends: 5553 [2020-12-22 08:55:47,199 INFO L226 Difference]: Without dead ends: 5227 [2020-12-22 08:55:47,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 08:55:47,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5227 states. [2020-12-22 08:55:47,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5227 to 1021. [2020-12-22 08:55:47,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2020-12-22 08:55:47,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1390 transitions. [2020-12-22 08:55:47,464 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1390 transitions. Word has length 96 [2020-12-22 08:55:47,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:47,465 INFO L481 AbstractCegarLoop]: Abstraction has 1021 states and 1390 transitions. [2020-12-22 08:55:47,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:55:47,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1390 transitions. [2020-12-22 08:55:47,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:55:47,466 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:47,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:47,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-12-22 08:55:47,466 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:47,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:47,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1185015970, now seen corresponding path program 1 times [2020-12-22 08:55:47,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:47,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805415937] [2020-12-22 08:55:47,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:47,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:47,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805415937] [2020-12-22 08:55:47,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:47,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:55:47,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649751605] [2020-12-22 08:55:47,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:55:47,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:47,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:55:47,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:55:47,813 INFO L87 Difference]: Start difference. First operand 1021 states and 1390 transitions. Second operand 12 states. [2020-12-22 08:55:55,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:55,137 INFO L93 Difference]: Finished difference Result 2915 states and 4140 transitions. [2020-12-22 08:55:55,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:55:55,138 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2020-12-22 08:55:55,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:55,140 INFO L225 Difference]: With dead ends: 2915 [2020-12-22 08:55:55,140 INFO L226 Difference]: Without dead ends: 2612 [2020-12-22 08:55:55,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:55:55,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2612 states. [2020-12-22 08:55:55,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2612 to 1021. [2020-12-22 08:55:55,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2020-12-22 08:55:55,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1389 transitions. [2020-12-22 08:55:55,392 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1389 transitions. Word has length 96 [2020-12-22 08:55:55,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:55,392 INFO L481 AbstractCegarLoop]: Abstraction has 1021 states and 1389 transitions. [2020-12-22 08:55:55,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:55:55,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1389 transitions. [2020-12-22 08:55:55,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:55:55,393 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:55,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:55,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-12-22 08:55:55,394 INFO L429 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:55,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:55,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1478196549, now seen corresponding path program 1 times [2020-12-22 08:55:55,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:55,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518524177] [2020-12-22 08:55:55,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:55,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:55,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518524177] [2020-12-22 08:55:55,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:55,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:55,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52296142] [2020-12-22 08:55:55,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:55,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:55,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:55,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:55,555 INFO L87 Difference]: Start difference. First operand 1021 states and 1389 transitions. Second operand 9 states. [2020-12-22 08:55:59,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:59,495 INFO L93 Difference]: Finished difference Result 2465 states and 3485 transitions. [2020-12-22 08:55:59,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:55:59,496 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:55:59,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:59,498 INFO L225 Difference]: With dead ends: 2465 [2020-12-22 08:55:59,498 INFO L226 Difference]: Without dead ends: 2171 [2020-12-22 08:55:59,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:55:59,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2171 states. [2020-12-22 08:55:59,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2171 to 1021. [2020-12-22 08:55:59,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2020-12-22 08:55:59,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1387 transitions. [2020-12-22 08:55:59,759 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1387 transitions. Word has length 96 [2020-12-22 08:55:59,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:59,759 INFO L481 AbstractCegarLoop]: Abstraction has 1021 states and 1387 transitions. [2020-12-22 08:55:59,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:59,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1387 transitions. [2020-12-22 08:55:59,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:55:59,761 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:59,761 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:59,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-12-22 08:55:59,761 INFO L429 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:59,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:59,761 INFO L82 PathProgramCache]: Analyzing trace with hash 190488080, now seen corresponding path program 1 times [2020-12-22 08:55:59,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:59,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161096071] [2020-12-22 08:55:59,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:00,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:56:00,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161096071] [2020-12-22 08:56:00,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:00,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:56:00,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700477790] [2020-12-22 08:56:00,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:56:00,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:00,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:56:00,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:56:00,040 INFO L87 Difference]: Start difference. First operand 1021 states and 1387 transitions. Second operand 11 states. [2020-12-22 08:56:07,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:56:07,632 INFO L93 Difference]: Finished difference Result 3883 states and 5584 transitions. [2020-12-22 08:56:07,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:56:07,634 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 96 [2020-12-22 08:56:07,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:56:07,637 INFO L225 Difference]: With dead ends: 3883 [2020-12-22 08:56:07,637 INFO L226 Difference]: Without dead ends: 3592 [2020-12-22 08:56:07,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:56:07,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3592 states. [2020-12-22 08:56:07,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3592 to 1025. [2020-12-22 08:56:07,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:56:07,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1391 transitions. [2020-12-22 08:56:07,917 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1391 transitions. Word has length 96 [2020-12-22 08:56:07,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:56:07,917 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1391 transitions. [2020-12-22 08:56:07,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:56:07,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1391 transitions. [2020-12-22 08:56:07,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:56:07,918 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:56:07,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:56:07,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-12-22 08:56:07,919 INFO L429 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:56:07,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:56:07,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1908305338, now seen corresponding path program 1 times [2020-12-22 08:56:07,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:56:07,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713663105] [2020-12-22 08:56:07,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:56:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:08,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:56:08,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713663105] [2020-12-22 08:56:08,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:08,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:56:08,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40571665] [2020-12-22 08:56:08,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:56:08,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:08,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:56:08,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:56:08,099 INFO L87 Difference]: Start difference. First operand 1025 states and 1391 transitions. Second operand 9 states. [2020-12-22 08:56:12,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:56:12,215 INFO L93 Difference]: Finished difference Result 2459 states and 3475 transitions. [2020-12-22 08:56:12,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:56:12,216 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:56:12,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:56:12,218 INFO L225 Difference]: With dead ends: 2459 [2020-12-22 08:56:12,218 INFO L226 Difference]: Without dead ends: 2171 [2020-12-22 08:56:12,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:56:12,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2171 states. [2020-12-22 08:56:12,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2171 to 1025. [2020-12-22 08:56:12,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:56:12,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1390 transitions. [2020-12-22 08:56:12,495 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1390 transitions. Word has length 96 [2020-12-22 08:56:12,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:56:12,495 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1390 transitions. [2020-12-22 08:56:12,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:56:12,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1390 transitions. [2020-12-22 08:56:12,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:56:12,496 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:56:12,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:56:12,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-12-22 08:56:12,496 INFO L429 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:56:12,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:56:12,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1460404217, now seen corresponding path program 1 times [2020-12-22 08:56:12,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:56:12,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711358017] [2020-12-22 08:56:12,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:56:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:12,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:56:12,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711358017] [2020-12-22 08:56:12,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:12,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:56:12,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186911678] [2020-12-22 08:56:12,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:56:12,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:12,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:56:12,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:56:12,816 INFO L87 Difference]: Start difference. First operand 1025 states and 1390 transitions. Second operand 12 states. [2020-12-22 08:56:20,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:56:20,846 INFO L93 Difference]: Finished difference Result 2633 states and 3705 transitions. [2020-12-22 08:56:20,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:56:20,847 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2020-12-22 08:56:20,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:56:20,849 INFO L225 Difference]: With dead ends: 2633 [2020-12-22 08:56:20,850 INFO L226 Difference]: Without dead ends: 2616 [2020-12-22 08:56:20,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:56:20,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2020-12-22 08:56:21,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 1025. [2020-12-22 08:56:21,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:56:21,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1389 transitions. [2020-12-22 08:56:21,146 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1389 transitions. Word has length 96 [2020-12-22 08:56:21,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:56:21,146 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1389 transitions. [2020-12-22 08:56:21,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:56:21,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1389 transitions. [2020-12-22 08:56:21,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:56:21,148 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:56:21,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:56:21,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-12-22 08:56:21,149 INFO L429 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:56:21,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:56:21,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1202808302, now seen corresponding path program 1 times [2020-12-22 08:56:21,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:56:21,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756349604] [2020-12-22 08:56:21,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:56:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:21,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:56:21,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756349604] [2020-12-22 08:56:21,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:21,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:56:21,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301859725] [2020-12-22 08:56:21,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:56:21,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:21,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:56:21,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:56:21,352 INFO L87 Difference]: Start difference. First operand 1025 states and 1389 transitions. Second operand 9 states. [2020-12-22 08:56:25,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:56:25,571 INFO L93 Difference]: Finished difference Result 2176 states and 3042 transitions. [2020-12-22 08:56:25,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:56:25,573 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:56:25,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:56:25,574 INFO L225 Difference]: With dead ends: 2176 [2020-12-22 08:56:25,575 INFO L226 Difference]: Without dead ends: 2171 [2020-12-22 08:56:25,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:56:25,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2171 states. [2020-12-22 08:56:25,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2171 to 1025. [2020-12-22 08:56:25,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-12-22 08:56:25,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1387 transitions. [2020-12-22 08:56:25,882 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1387 transitions. Word has length 96 [2020-12-22 08:56:25,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:56:25,882 INFO L481 AbstractCegarLoop]: Abstraction has 1025 states and 1387 transitions. [2020-12-22 08:56:25,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:56:25,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1387 transitions. [2020-12-22 08:56:25,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:56:25,884 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:56:25,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:56:25,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-12-22 08:56:25,884 INFO L429 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:56:25,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:56:25,885 INFO L82 PathProgramCache]: Analyzing trace with hash -263649479, now seen corresponding path program 1 times [2020-12-22 08:56:25,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:56:25,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687169796] [2020-12-22 08:56:25,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:56:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:56:26,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:56:26,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687169796] [2020-12-22 08:56:26,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:56:26,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:56:26,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329031340] [2020-12-22 08:56:26,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:56:26,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:56:26,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:56:26,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:56:26,148 INFO L87 Difference]: Start difference. First operand 1025 states and 1387 transitions. Second operand 11 states.