/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.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 21:02:34,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 21:02:34,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 21:02:34,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 21:02:34,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 21:02:34,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 21:02:34,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 21:02:34,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 21:02:34,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 21:02:34,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 21:02:34,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 21:02:34,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 21:02:34,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 21:02:34,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 21:02:34,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 21:02:34,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 21:02:34,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 21:02:34,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 21:02:34,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 21:02:34,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 21:02:34,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 21:02:34,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 21:02:34,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 21:02:34,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 21:02:34,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 21:02:34,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 21:02:34,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 21:02:34,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 21:02:34,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 21:02:34,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 21:02:34,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 21:02:34,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 21:02:34,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 21:02:34,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 21:02:34,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 21:02:34,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 21:02:34,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 21:02:34,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 21:02:34,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 21:02:34,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 21:02:34,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 21:02:34,316 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 21:02:34,373 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 21:02:34,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 21:02:34,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 21:02:34,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 21:02:34,380 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 21:02:34,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 21:02:34,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 21:02:34,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 21:02:34,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 21:02:34,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 21:02:34,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 21:02:34,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 21:02:34,386 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 21:02:34,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 21:02:34,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 21:02:34,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 21:02:34,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 21:02:34,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 21:02:34,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 21:02:34,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 21:02:34,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 21:02:34,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 21:02:34,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 21:02:34,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 21:02:34,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 21:02:34,390 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 21:02:34,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 21:02:34,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 21:02:34,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 21:02:34,937 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 21:02:34,938 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 21:02:34,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2021-01-06 21:02:35,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/54dcbafe5/8ba52bb92fdd45cea11e30704b69ca99/FLAG48af6b01f [2021-01-06 21:02:35,841 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 21:02:35,843 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2021-01-06 21:02:35,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/54dcbafe5/8ba52bb92fdd45cea11e30704b69ca99/FLAG48af6b01f [2021-01-06 21:02:36,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/54dcbafe5/8ba52bb92fdd45cea11e30704b69ca99 [2021-01-06 21:02:36,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 21:02:36,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 21:02:36,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 21:02:36,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 21:02:36,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 21:02:36,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 09:02:36" (1/1) ... [2021-01-06 21:02:36,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79a3b336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:02:36, skipping insertion in model container [2021-01-06 21:02:36,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 09:02:36" (1/1) ... [2021-01-06 21:02:36,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 21:02:36,266 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6164~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6278~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] [2021-01-06 21:02:36,505 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[5403,5416] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2021-01-06 21:02:36,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 21:02:36,627 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6164~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6278~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] [2021-01-06 21:02:36,777 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[5403,5416] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2021-01-06 21:02:36,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 21:02:36,880 INFO L208 MainTranslator]: Completed translation [2021-01-06 21:02:36,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:02:36 WrapperNode [2021-01-06 21:02:36,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 21:02:36,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 21:02:36,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 21:02:36,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 21:02:36,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:02:36" (1/1) ... [2021-01-06 21:02:36,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:02:36" (1/1) ... [2021-01-06 21:02:36,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 21:02:36,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 21:02:36,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 21:02:36,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 21:02:36,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:02:36" (1/1) ... [2021-01-06 21:02:36,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:02:36" (1/1) ... [2021-01-06 21:02:36,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:02:36" (1/1) ... [2021-01-06 21:02:36,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:02:36" (1/1) ... [2021-01-06 21:02:36,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:02:36" (1/1) ... [2021-01-06 21:02:36,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:02:36" (1/1) ... [2021-01-06 21:02:36,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:02:36" (1/1) ... [2021-01-06 21:02:37,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 21:02:37,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 21:02:37,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 21:02:37,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 21:02:37,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:02:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 21:02:37,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 21:02:37,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 21:02:37,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 21:02:37,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 21:02:38,253 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 21:02:38,253 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-01-06 21:02:38,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 09:02:38 BoogieIcfgContainer [2021-01-06 21:02:38,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 21:02:38,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 21:02:38,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 21:02:38,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 21:02:38,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 09:02:36" (1/3) ... [2021-01-06 21:02:38,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1da55bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 09:02:38, skipping insertion in model container [2021-01-06 21:02:38,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:02:36" (2/3) ... [2021-01-06 21:02:38,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1da55bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 09:02:38, skipping insertion in model container [2021-01-06 21:02:38,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 09:02:38" (3/3) ... [2021-01-06 21:02:38,267 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2021-01-06 21:02:38,274 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 21:02:38,281 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 21:02:38,301 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 21:02:38,336 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 21:02:38,336 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 21:02:38,336 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 21:02:38,336 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 21:02:38,337 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 21:02:38,337 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 21:02:38,337 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 21:02:38,337 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 21:02:38,358 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states. [2021-01-06 21:02:38,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-01-06 21:02:38,368 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:02:38,369 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] [2021-01-06 21:02:38,370 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:02:38,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:02:38,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1055716622, now seen corresponding path program 1 times [2021-01-06 21:02:38,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:02:38,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666582467] [2021-01-06 21:02:38,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:02:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:02:39,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:02:39,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666582467] [2021-01-06 21:02:39,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:02:39,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 21:02:39,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424666799] [2021-01-06 21:02:39,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 21:02:39,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:02:39,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 21:02:39,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:02:39,119 INFO L87 Difference]: Start difference. First operand 99 states. Second operand 3 states. [2021-01-06 21:02:39,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:02:39,215 INFO L93 Difference]: Finished difference Result 221 states and 356 transitions. [2021-01-06 21:02:39,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 21:02:39,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2021-01-06 21:02:39,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:02:39,235 INFO L225 Difference]: With dead ends: 221 [2021-01-06 21:02:39,236 INFO L226 Difference]: Without dead ends: 150 [2021-01-06 21:02:39,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:02:39,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-01-06 21:02:39,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2021-01-06 21:02:39,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2021-01-06 21:02:39,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 215 transitions. [2021-01-06 21:02:39,320 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 215 transitions. Word has length 60 [2021-01-06 21:02:39,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:02:39,322 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 215 transitions. [2021-01-06 21:02:39,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 21:02:39,322 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 215 transitions. [2021-01-06 21:02:39,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-01-06 21:02:39,325 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:02:39,325 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] [2021-01-06 21:02:39,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 21:02:39,326 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:02:39,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:02:39,329 INFO L82 PathProgramCache]: Analyzing trace with hash 160325981, now seen corresponding path program 1 times [2021-01-06 21:02:39,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:02:39,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838245175] [2021-01-06 21:02:39,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:02:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:02:39,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:02:39,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838245175] [2021-01-06 21:02:39,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:02:39,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 21:02:39,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224125811] [2021-01-06 21:02:39,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 21:02:39,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:02:39,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 21:02:39,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:02:39,519 INFO L87 Difference]: Start difference. First operand 148 states and 215 transitions. Second operand 3 states. [2021-01-06 21:02:39,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:02:39,594 INFO L93 Difference]: Finished difference Result 360 states and 551 transitions. [2021-01-06 21:02:39,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 21:02:39,597 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2021-01-06 21:02:39,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:02:39,605 INFO L225 Difference]: With dead ends: 360 [2021-01-06 21:02:39,607 INFO L226 Difference]: Without dead ends: 246 [2021-01-06 21:02:39,610 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:02:39,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-01-06 21:02:39,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 244. [2021-01-06 21:02:39,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2021-01-06 21:02:39,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 367 transitions. [2021-01-06 21:02:39,688 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 367 transitions. Word has length 61 [2021-01-06 21:02:39,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:02:39,689 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 367 transitions. [2021-01-06 21:02:39,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 21:02:39,689 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 367 transitions. [2021-01-06 21:02:39,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-06 21:02:39,694 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:02:39,695 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] [2021-01-06 21:02:39,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 21:02:39,696 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:02:39,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:02:39,699 INFO L82 PathProgramCache]: Analyzing trace with hash -2130731763, now seen corresponding path program 1 times [2021-01-06 21:02:39,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:02:39,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754724519] [2021-01-06 21:02:39,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:02:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:02:39,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:02:39,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754724519] [2021-01-06 21:02:39,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:02:39,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 21:02:39,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886703394] [2021-01-06 21:02:39,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 21:02:39,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:02:39,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 21:02:39,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:02:39,891 INFO L87 Difference]: Start difference. First operand 244 states and 367 transitions. Second operand 3 states. [2021-01-06 21:02:39,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:02:39,957 INFO L93 Difference]: Finished difference Result 632 states and 981 transitions. [2021-01-06 21:02:39,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 21:02:39,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2021-01-06 21:02:39,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:02:39,966 INFO L225 Difference]: With dead ends: 632 [2021-01-06 21:02:39,967 INFO L226 Difference]: Without dead ends: 422 [2021-01-06 21:02:39,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:02:39,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-01-06 21:02:40,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 420. [2021-01-06 21:02:40,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2021-01-06 21:02:40,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 643 transitions. [2021-01-06 21:02:40,061 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 643 transitions. Word has length 62 [2021-01-06 21:02:40,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:02:40,062 INFO L481 AbstractCegarLoop]: Abstraction has 420 states and 643 transitions. [2021-01-06 21:02:40,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 21:02:40,062 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 643 transitions. [2021-01-06 21:02:40,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-01-06 21:02:40,064 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:02:40,065 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] [2021-01-06 21:02:40,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 21:02:40,065 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:02:40,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:02:40,066 INFO L82 PathProgramCache]: Analyzing trace with hash 2078468845, now seen corresponding path program 1 times [2021-01-06 21:02:40,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:02:40,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177132671] [2021-01-06 21:02:40,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:02:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:02:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:02:40,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177132671] [2021-01-06 21:02:40,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:02:40,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 21:02:40,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454125961] [2021-01-06 21:02:40,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 21:02:40,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:02:40,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 21:02:40,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:02:40,162 INFO L87 Difference]: Start difference. First operand 420 states and 643 transitions. Second operand 3 states. [2021-01-06 21:02:40,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:02:40,227 INFO L93 Difference]: Finished difference Result 1128 states and 1757 transitions. [2021-01-06 21:02:40,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 21:02:40,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2021-01-06 21:02:40,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:02:40,235 INFO L225 Difference]: With dead ends: 1128 [2021-01-06 21:02:40,235 INFO L226 Difference]: Without dead ends: 742 [2021-01-06 21:02:40,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:02:40,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2021-01-06 21:02:40,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 740. [2021-01-06 21:02:40,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2021-01-06 21:02:40,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1139 transitions. [2021-01-06 21:02:40,309 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1139 transitions. Word has length 63 [2021-01-06 21:02:40,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:02:40,312 INFO L481 AbstractCegarLoop]: Abstraction has 740 states and 1139 transitions. [2021-01-06 21:02:40,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 21:02:40,312 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1139 transitions. [2021-01-06 21:02:40,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-01-06 21:02:40,349 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:02:40,349 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] [2021-01-06 21:02:40,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 21:02:40,350 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:02:40,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:02:40,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1380036385, now seen corresponding path program 1 times [2021-01-06 21:02:40,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:02:40,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319862285] [2021-01-06 21:02:40,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:02:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:02:40,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:02:40,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319862285] [2021-01-06 21:02:40,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:02:40,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 21:02:40,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969150047] [2021-01-06 21:02:40,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 21:02:40,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:02:40,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 21:02:40,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 21:02:40,641 INFO L87 Difference]: Start difference. First operand 740 states and 1139 transitions. Second operand 6 states. [2021-01-06 21:02:40,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:02:40,931 INFO L93 Difference]: Finished difference Result 2144 states and 3333 transitions. [2021-01-06 21:02:40,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 21:02:40,932 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2021-01-06 21:02:40,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:02:40,943 INFO L225 Difference]: With dead ends: 2144 [2021-01-06 21:02:40,943 INFO L226 Difference]: Without dead ends: 1438 [2021-01-06 21:02:40,946 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 [2021-01-06 21:02:40,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2021-01-06 21:02:41,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1436. [2021-01-06 21:02:41,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1436 states. [2021-01-06 21:02:41,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2219 transitions. [2021-01-06 21:02:41,072 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2219 transitions. Word has length 64 [2021-01-06 21:02:41,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:02:41,073 INFO L481 AbstractCegarLoop]: Abstraction has 1436 states and 2219 transitions. [2021-01-06 21:02:41,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 21:02:41,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2219 transitions. [2021-01-06 21:02:41,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-01-06 21:02:41,074 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:02:41,075 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] [2021-01-06 21:02:41,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 21:02:41,075 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:02:41,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:02:41,076 INFO L82 PathProgramCache]: Analyzing trace with hash -106168380, now seen corresponding path program 1 times [2021-01-06 21:02:41,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:02:41,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417421039] [2021-01-06 21:02:41,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:02:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:02:41,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:02:41,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417421039] [2021-01-06 21:02:41,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:02:41,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 21:02:41,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970248991] [2021-01-06 21:02:41,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 21:02:41,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:02:41,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 21:02:41,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 21:02:41,205 INFO L87 Difference]: Start difference. First operand 1436 states and 2219 transitions. Second operand 5 states. [2021-01-06 21:02:41,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:02:41,433 INFO L93 Difference]: Finished difference Result 2838 states and 4404 transitions. [2021-01-06 21:02:41,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 21:02:41,434 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2021-01-06 21:02:41,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:02:41,444 INFO L225 Difference]: With dead ends: 2838 [2021-01-06 21:02:41,444 INFO L226 Difference]: Without dead ends: 1436 [2021-01-06 21:02:41,448 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 [2021-01-06 21:02:41,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2021-01-06 21:02:41,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1436. [2021-01-06 21:02:41,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1436 states. [2021-01-06 21:02:41,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2203 transitions. [2021-01-06 21:02:41,575 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2203 transitions. Word has length 64 [2021-01-06 21:02:41,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:02:41,576 INFO L481 AbstractCegarLoop]: Abstraction has 1436 states and 2203 transitions. [2021-01-06 21:02:41,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 21:02:41,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2203 transitions. [2021-01-06 21:02:41,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-01-06 21:02:41,577 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:02:41,577 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] [2021-01-06 21:02:41,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 21:02:41,578 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:02:41,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:02:41,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1553197975, now seen corresponding path program 1 times [2021-01-06 21:02:41,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:02:41,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818708662] [2021-01-06 21:02:41,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:02:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:02:41,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:02:41,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818708662] [2021-01-06 21:02:41,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:02:41,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 21:02:41,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662086456] [2021-01-06 21:02:41,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 21:02:41,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:02:41,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 21:02:41,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 21:02:41,727 INFO L87 Difference]: Start difference. First operand 1436 states and 2203 transitions. Second operand 5 states. [2021-01-06 21:02:41,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:02:41,995 INFO L93 Difference]: Finished difference Result 2838 states and 4372 transitions. [2021-01-06 21:02:41,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 21:02:41,996 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2021-01-06 21:02:41,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:02:42,006 INFO L225 Difference]: With dead ends: 2838 [2021-01-06 21:02:42,006 INFO L226 Difference]: Without dead ends: 1436 [2021-01-06 21:02:42,011 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 [2021-01-06 21:02:42,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2021-01-06 21:02:42,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1436. [2021-01-06 21:02:42,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1436 states. [2021-01-06 21:02:42,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2187 transitions. [2021-01-06 21:02:42,148 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2187 transitions. Word has length 64 [2021-01-06 21:02:42,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:02:42,148 INFO L481 AbstractCegarLoop]: Abstraction has 1436 states and 2187 transitions. [2021-01-06 21:02:42,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 21:02:42,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2187 transitions. [2021-01-06 21:02:42,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-01-06 21:02:42,149 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:02:42,149 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] [2021-01-06 21:02:42,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 21:02:42,150 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:02:42,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:02:42,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1277697764, now seen corresponding path program 1 times [2021-01-06 21:02:42,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:02:42,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688164501] [2021-01-06 21:02:42,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:02:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:02:42,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:02:42,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688164501] [2021-01-06 21:02:42,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:02:42,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 21:02:42,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398006509] [2021-01-06 21:02:42,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 21:02:42,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:02:42,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 21:02:42,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-06 21:02:42,315 INFO L87 Difference]: Start difference. First operand 1436 states and 2187 transitions. Second operand 7 states. [2021-01-06 21:02:43,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:02:43,872 INFO L93 Difference]: Finished difference Result 15456 states and 23717 transitions. [2021-01-06 21:02:43,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-06 21:02:43,873 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2021-01-06 21:02:43,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:02:43,955 INFO L225 Difference]: With dead ends: 15456 [2021-01-06 21:02:43,956 INFO L226 Difference]: Without dead ends: 14054 [2021-01-06 21:02:43,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-06 21:02:43,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14054 states. [2021-01-06 21:02:44,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14054 to 2836. [2021-01-06 21:02:44,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2836 states. [2021-01-06 21:02:44,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2836 states to 2836 states and 4275 transitions. [2021-01-06 21:02:44,497 INFO L78 Accepts]: Start accepts. Automaton has 2836 states and 4275 transitions. Word has length 64 [2021-01-06 21:02:44,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:02:44,497 INFO L481 AbstractCegarLoop]: Abstraction has 2836 states and 4275 transitions. [2021-01-06 21:02:44,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 21:02:44,497 INFO L276 IsEmpty]: Start isEmpty. Operand 2836 states and 4275 transitions. [2021-01-06 21:02:44,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-01-06 21:02:44,498 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:02:44,498 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] [2021-01-06 21:02:44,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 21:02:44,499 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:02:44,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:02:44,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1414916288, now seen corresponding path program 1 times [2021-01-06 21:02:44,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:02:44,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146476617] [2021-01-06 21:02:44,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:02:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:02:44,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:02:44,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146476617] [2021-01-06 21:02:44,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:02:44,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 21:02:44,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952302015] [2021-01-06 21:02:44,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 21:02:44,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:02:44,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 21:02:44,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:02:44,634 INFO L87 Difference]: Start difference. First operand 2836 states and 4275 transitions. Second operand 3 states. [2021-01-06 21:02:45,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:02:45,326 INFO L93 Difference]: Finished difference Result 8088 states and 12149 transitions. [2021-01-06 21:02:45,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 21:02:45,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2021-01-06 21:02:45,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:02:45,379 INFO L225 Difference]: With dead ends: 8088 [2021-01-06 21:02:45,379 INFO L226 Difference]: Without dead ends: 5286 [2021-01-06 21:02:45,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:02:45,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5286 states. [2021-01-06 21:02:46,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5286 to 5220. [2021-01-06 21:02:46,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5220 states. [2021-01-06 21:02:46,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5220 states to 5220 states and 7683 transitions. [2021-01-06 21:02:46,020 INFO L78 Accepts]: Start accepts. Automaton has 5220 states and 7683 transitions. Word has length 66 [2021-01-06 21:02:46,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:02:46,020 INFO L481 AbstractCegarLoop]: Abstraction has 5220 states and 7683 transitions. [2021-01-06 21:02:46,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 21:02:46,021 INFO L276 IsEmpty]: Start isEmpty. Operand 5220 states and 7683 transitions. [2021-01-06 21:02:46,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-01-06 21:02:46,028 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:02:46,028 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] [2021-01-06 21:02:46,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 21:02:46,030 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:02:46,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:02:46,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1393913633, now seen corresponding path program 1 times [2021-01-06 21:02:46,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:02:46,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597955613] [2021-01-06 21:02:46,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:02:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:02:46,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:02:46,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597955613] [2021-01-06 21:02:46,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:02:46,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 21:02:46,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245228111] [2021-01-06 21:02:46,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 21:02:46,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:02:46,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 21:02:46,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-01-06 21:02:46,436 INFO L87 Difference]: Start difference. First operand 5220 states and 7683 transitions. Second operand 7 states. [2021-01-06 21:02:47,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:02:47,325 INFO L93 Difference]: Finished difference Result 10408 states and 15333 transitions. [2021-01-06 21:02:47,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 21:02:47,326 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2021-01-06 21:02:47,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:02:47,353 INFO L225 Difference]: With dead ends: 10408 [2021-01-06 21:02:47,354 INFO L226 Difference]: Without dead ends: 5222 [2021-01-06 21:02:47,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-01-06 21:02:47,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5222 states. [2021-01-06 21:02:48,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5222 to 5220. [2021-01-06 21:02:48,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5220 states. [2021-01-06 21:02:48,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5220 states to 5220 states and 7619 transitions. [2021-01-06 21:02:48,085 INFO L78 Accepts]: Start accepts. Automaton has 5220 states and 7619 transitions. Word has length 66 [2021-01-06 21:02:48,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:02:48,085 INFO L481 AbstractCegarLoop]: Abstraction has 5220 states and 7619 transitions. [2021-01-06 21:02:48,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 21:02:48,086 INFO L276 IsEmpty]: Start isEmpty. Operand 5220 states and 7619 transitions. [2021-01-06 21:02:48,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-01-06 21:02:48,087 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:02:48,087 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] [2021-01-06 21:02:48,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 21:02:48,088 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:02:48,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:02:48,088 INFO L82 PathProgramCache]: Analyzing trace with hash -573930250, now seen corresponding path program 1 times [2021-01-06 21:02:48,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:02:48,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805147552] [2021-01-06 21:02:48,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:02:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:02:48,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:02:48,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805147552] [2021-01-06 21:02:48,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:02:48,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 21:02:48,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879634633] [2021-01-06 21:02:48,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 21:02:48,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:02:48,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 21:02:48,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:02:48,151 INFO L87 Difference]: Start difference. First operand 5220 states and 7619 transitions. Second operand 3 states. [2021-01-06 21:02:48,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:02:48,799 INFO L93 Difference]: Finished difference Result 10187 states and 15017 transitions. [2021-01-06 21:02:48,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 21:02:48,800 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2021-01-06 21:02:48,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:02:48,819 INFO L225 Difference]: With dead ends: 10187 [2021-01-06 21:02:48,819 INFO L226 Difference]: Without dead ends: 7384 [2021-01-06 21:02:48,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:02:48,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7384 states. [2021-01-06 21:02:49,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7384 to 7382. [2021-01-06 21:02:49,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7382 states. [2021-01-06 21:02:49,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7382 states to 7382 states and 10741 transitions. [2021-01-06 21:02:49,653 INFO L78 Accepts]: Start accepts. Automaton has 7382 states and 10741 transitions. Word has length 67 [2021-01-06 21:02:49,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:02:49,654 INFO L481 AbstractCegarLoop]: Abstraction has 7382 states and 10741 transitions. [2021-01-06 21:02:49,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 21:02:49,654 INFO L276 IsEmpty]: Start isEmpty. Operand 7382 states and 10741 transitions. [2021-01-06 21:02:49,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-01-06 21:02:49,654 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:02:49,655 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] [2021-01-06 21:02:49,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 21:02:49,655 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:02:49,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:02:49,656 INFO L82 PathProgramCache]: Analyzing trace with hash -263559015, now seen corresponding path program 1 times [2021-01-06 21:02:49,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:02:49,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076713348] [2021-01-06 21:02:49,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:02:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:02:49,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:02:49,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076713348] [2021-01-06 21:02:49,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:02:49,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 21:02:49,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967592689] [2021-01-06 21:02:49,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 21:02:49,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:02:49,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 21:02:49,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 21:02:49,747 INFO L87 Difference]: Start difference. First operand 7382 states and 10741 transitions. Second operand 5 states. [2021-01-06 21:02:50,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:02:50,916 INFO L93 Difference]: Finished difference Result 13277 states and 19252 transitions. [2021-01-06 21:02:50,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 21:02:50,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2021-01-06 21:02:50,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:02:50,956 INFO L225 Difference]: With dead ends: 13277 [2021-01-06 21:02:50,956 INFO L226 Difference]: Without dead ends: 13275 [2021-01-06 21:02:50,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-01-06 21:02:50,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13275 states. [2021-01-06 21:02:52,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13275 to 7638. [2021-01-06 21:02:52,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7638 states. [2021-01-06 21:02:52,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7638 states to 7638 states and 10965 transitions. [2021-01-06 21:02:52,076 INFO L78 Accepts]: Start accepts. Automaton has 7638 states and 10965 transitions. Word has length 67 [2021-01-06 21:02:52,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:02:52,076 INFO L481 AbstractCegarLoop]: Abstraction has 7638 states and 10965 transitions. [2021-01-06 21:02:52,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 21:02:52,076 INFO L276 IsEmpty]: Start isEmpty. Operand 7638 states and 10965 transitions. [2021-01-06 21:02:52,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-01-06 21:02:52,080 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:02:52,080 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 21:02:52,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 21:02:52,081 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:02:52,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:02:52,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1999510602, now seen corresponding path program 1 times [2021-01-06 21:02:52,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:02:52,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146009617] [2021-01-06 21:02:52,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:02:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:02:52,199 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-01-06 21:02:52,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146009617] [2021-01-06 21:02:52,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:02:52,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 21:02:52,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983174511] [2021-01-06 21:02:52,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 21:02:52,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:02:52,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 21:02:52,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-06 21:02:52,202 INFO L87 Difference]: Start difference. First operand 7638 states and 10965 transitions. Second operand 7 states. [2021-01-06 21:02:55,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:02:55,428 INFO L93 Difference]: Finished difference Result 47082 states and 67603 transitions. [2021-01-06 21:02:55,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 21:02:55,429 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2021-01-06 21:02:55,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:02:55,531 INFO L225 Difference]: With dead ends: 47082 [2021-01-06 21:02:55,531 INFO L226 Difference]: Without dead ends: 39480 [2021-01-06 21:02:55,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-06 21:02:55,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39480 states. [2021-01-06 21:02:57,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39480 to 15238. [2021-01-06 21:02:57,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15238 states. [2021-01-06 21:02:57,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15238 states to 15238 states and 21797 transitions. [2021-01-06 21:02:57,487 INFO L78 Accepts]: Start accepts. Automaton has 15238 states and 21797 transitions. Word has length 94 [2021-01-06 21:02:57,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:02:57,487 INFO L481 AbstractCegarLoop]: Abstraction has 15238 states and 21797 transitions. [2021-01-06 21:02:57,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 21:02:57,487 INFO L276 IsEmpty]: Start isEmpty. Operand 15238 states and 21797 transitions. [2021-01-06 21:02:57,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-01-06 21:02:57,492 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:02:57,492 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 21:02:57,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-06 21:02:57,492 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:02:57,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:02:57,493 INFO L82 PathProgramCache]: Analyzing trace with hash 845564496, now seen corresponding path program 1 times [2021-01-06 21:02:57,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:02:57,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504418545] [2021-01-06 21:02:57,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:02:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:02:57,607 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-01-06 21:02:57,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504418545] [2021-01-06 21:02:57,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:02:57,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 21:02:57,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713817304] [2021-01-06 21:02:57,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 21:02:57,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:02:57,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 21:02:57,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-06 21:02:57,610 INFO L87 Difference]: Start difference. First operand 15238 states and 21797 transitions. Second operand 7 states. [2021-01-06 21:03:01,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:03:01,754 INFO L93 Difference]: Finished difference Result 54682 states and 78435 transitions. [2021-01-06 21:03:01,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 21:03:01,755 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2021-01-06 21:03:01,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:03:01,865 INFO L225 Difference]: With dead ends: 54682 [2021-01-06 21:03:01,866 INFO L226 Difference]: Without dead ends: 47080 [2021-01-06 21:03:01,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-06 21:03:01,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47080 states. [2021-01-06 21:03:04,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47080 to 26654. [2021-01-06 21:03:04,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26654 states. [2021-01-06 21:03:04,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26654 states to 26654 states and 37965 transitions. [2021-01-06 21:03:04,820 INFO L78 Accepts]: Start accepts. Automaton has 26654 states and 37965 transitions. Word has length 94 [2021-01-06 21:03:04,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:03:04,821 INFO L481 AbstractCegarLoop]: Abstraction has 26654 states and 37965 transitions. [2021-01-06 21:03:04,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 21:03:04,821 INFO L276 IsEmpty]: Start isEmpty. Operand 26654 states and 37965 transitions. [2021-01-06 21:03:04,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-01-06 21:03:04,828 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:03:04,829 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 21:03:04,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-06 21:03:04,829 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:03:04,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:03:04,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1141609924, now seen corresponding path program 1 times [2021-01-06 21:03:04,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:03:04,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696523320] [2021-01-06 21:03:04,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:03:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:03:04,974 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-01-06 21:03:04,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696523320] [2021-01-06 21:03:04,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:03:04,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 21:03:04,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112365328] [2021-01-06 21:03:04,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 21:03:04,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:03:04,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 21:03:04,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-06 21:03:04,978 INFO L87 Difference]: Start difference. First operand 26654 states and 37965 transitions. Second operand 7 states. [2021-01-06 21:03:10,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:03:10,472 INFO L93 Difference]: Finished difference Result 62282 states and 89267 transitions. [2021-01-06 21:03:10,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 21:03:10,473 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2021-01-06 21:03:10,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:03:10,561 INFO L225 Difference]: With dead ends: 62282 [2021-01-06 21:03:10,561 INFO L226 Difference]: Without dead ends: 54680 [2021-01-06 21:03:10,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-06 21:03:10,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54680 states. [2021-01-06 21:03:14,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54680 to 34254. [2021-01-06 21:03:14,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34254 states. [2021-01-06 21:03:14,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34254 states to 34254 states and 48797 transitions. [2021-01-06 21:03:14,267 INFO L78 Accepts]: Start accepts. Automaton has 34254 states and 48797 transitions. Word has length 94 [2021-01-06 21:03:14,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:03:14,270 INFO L481 AbstractCegarLoop]: Abstraction has 34254 states and 48797 transitions. [2021-01-06 21:03:14,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 21:03:14,270 INFO L276 IsEmpty]: Start isEmpty. Operand 34254 states and 48797 transitions. [2021-01-06 21:03:14,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-01-06 21:03:14,277 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:03:14,278 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 21:03:14,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-06 21:03:14,278 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:03:14,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:03:14,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1724860738, now seen corresponding path program 1 times [2021-01-06 21:03:14,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:03:14,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55608445] [2021-01-06 21:03:14,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:03:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:03:14,403 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-01-06 21:03:14,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55608445] [2021-01-06 21:03:14,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:03:14,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 21:03:14,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688123771] [2021-01-06 21:03:14,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 21:03:14,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:03:14,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 21:03:14,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-06 21:03:14,405 INFO L87 Difference]: Start difference. First operand 34254 states and 48797 transitions. Second operand 7 states. [2021-01-06 21:03:20,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:03:20,144 INFO L93 Difference]: Finished difference Result 69882 states and 100099 transitions. [2021-01-06 21:03:20,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 21:03:20,144 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2021-01-06 21:03:20,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:03:20,221 INFO L225 Difference]: With dead ends: 69882 [2021-01-06 21:03:20,221 INFO L226 Difference]: Without dead ends: 62280 [2021-01-06 21:03:20,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-06 21:03:20,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62280 states. [2021-01-06 21:03:25,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62280 to 41854. [2021-01-06 21:03:25,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41854 states. [2021-01-06 21:03:25,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41854 states to 41854 states and 59629 transitions. [2021-01-06 21:03:25,098 INFO L78 Accepts]: Start accepts. Automaton has 41854 states and 59629 transitions. Word has length 94 [2021-01-06 21:03:25,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:03:25,099 INFO L481 AbstractCegarLoop]: Abstraction has 41854 states and 59629 transitions. [2021-01-06 21:03:25,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 21:03:25,099 INFO L276 IsEmpty]: Start isEmpty. Operand 41854 states and 59629 transitions. [2021-01-06 21:03:25,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-01-06 21:03:25,105 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:03:25,106 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 21:03:25,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-06 21:03:25,106 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:03:25,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:03:25,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1883520118, now seen corresponding path program 1 times [2021-01-06 21:03:25,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:03:25,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909093390] [2021-01-06 21:03:25,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:03:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:03:25,229 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 21:03:25,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909093390] [2021-01-06 21:03:25,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:03:25,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 21:03:25,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760124650] [2021-01-06 21:03:25,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 21:03:25,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:03:25,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 21:03:25,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-06 21:03:25,232 INFO L87 Difference]: Start difference. First operand 41854 states and 59629 transitions. Second operand 7 states. [2021-01-06 21:03:32,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:03:32,982 INFO L93 Difference]: Finished difference Result 72714 states and 104243 transitions. [2021-01-06 21:03:32,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 21:03:32,982 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 95 [2021-01-06 21:03:32,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:03:33,070 INFO L225 Difference]: With dead ends: 72714 [2021-01-06 21:03:33,070 INFO L226 Difference]: Without dead ends: 67496 [2021-01-06 21:03:33,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-06 21:03:33,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67496 states. [2021-01-06 21:03:38,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67496 to 47070. [2021-01-06 21:03:38,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47070 states. [2021-01-06 21:03:38,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47070 states to 47070 states and 67149 transitions. [2021-01-06 21:03:38,438 INFO L78 Accepts]: Start accepts. Automaton has 47070 states and 67149 transitions. Word has length 95 [2021-01-06 21:03:38,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:03:38,438 INFO L481 AbstractCegarLoop]: Abstraction has 47070 states and 67149 transitions. [2021-01-06 21:03:38,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 21:03:38,439 INFO L276 IsEmpty]: Start isEmpty. Operand 47070 states and 67149 transitions. [2021-01-06 21:03:38,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-01-06 21:03:38,446 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:03:38,446 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 21:03:38,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-06 21:03:38,446 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:03:38,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:03:38,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1641928633, now seen corresponding path program 1 times [2021-01-06 21:03:38,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:03:38,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891319419] [2021-01-06 21:03:38,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:03:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:03:38,714 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:03:38,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891319419] [2021-01-06 21:03:38,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183652376] [2021-01-06 21:03:38,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 21:03:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:03:38,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 4 conjunts are in the unsatisfiable core [2021-01-06 21:03:38,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 21:03:39,290 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 21:03:39,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 21:03:39,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4] total 12 [2021-01-06 21:03:39,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303106786] [2021-01-06 21:03:39,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-06 21:03:39,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:03:39,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-06 21:03:39,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-01-06 21:03:39,293 INFO L87 Difference]: Start difference. First operand 47070 states and 67149 transitions. Second operand 12 states. [2021-01-06 21:03:41,074 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-01-06 21:04:23,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:23,906 INFO L93 Difference]: Finished difference Result 335322 states and 475251 transitions. [2021-01-06 21:04:23,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-01-06 21:04:23,906 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2021-01-06 21:04:23,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:24,628 INFO L225 Difference]: With dead ends: 335322 [2021-01-06 21:04:24,628 INFO L226 Difference]: Without dead ends: 301416 [2021-01-06 21:04:24,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2136 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=975, Invalid=4725, Unknown=0, NotChecked=0, Total=5700 [2021-01-06 21:04:25,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301416 states. [2021-01-06 21:04:43,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301416 to 119470. [2021-01-06 21:04:43,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119470 states. [2021-01-06 21:04:44,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119470 states to 119470 states and 167901 transitions. [2021-01-06 21:04:44,084 INFO L78 Accepts]: Start accepts. Automaton has 119470 states and 167901 transitions. Word has length 96 [2021-01-06 21:04:44,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:44,085 INFO L481 AbstractCegarLoop]: Abstraction has 119470 states and 167901 transitions. [2021-01-06 21:04:44,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-01-06 21:04:44,085 INFO L276 IsEmpty]: Start isEmpty. Operand 119470 states and 167901 transitions. [2021-01-06 21:04:44,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-01-06 21:04:44,092 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:44,092 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 21:04:44,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-01-06 21:04:44,306 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:44,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:44,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1309023430, now seen corresponding path program 1 times [2021-01-06 21:04:44,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:44,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802461040] [2021-01-06 21:04:44,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:44,377 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:04:44,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802461040] [2021-01-06 21:04:44,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:44,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 21:04:44,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103044076] [2021-01-06 21:04:44,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 21:04:44,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:44,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 21:04:44,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:04:44,380 INFO L87 Difference]: Start difference. First operand 119470 states and 167901 transitions. Second operand 3 states. [2021-01-06 21:04:54,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:54,175 INFO L93 Difference]: Finished difference Result 185878 states and 261654 transitions. [2021-01-06 21:04:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 21:04:54,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2021-01-06 21:04:54,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:54,263 INFO L225 Difference]: With dead ends: 185878 [2021-01-06 21:04:54,263 INFO L226 Difference]: Without dead ends: 66444 [2021-01-06 21:04:54,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:04:54,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66444 states. [2021-01-06 21:05:03,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66444 to 66442. [2021-01-06 21:05:03,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66442 states. [2021-01-06 21:05:04,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66442 states to 66442 states and 92482 transitions. [2021-01-06 21:05:04,005 INFO L78 Accepts]: Start accepts. Automaton has 66442 states and 92482 transitions. Word has length 96 [2021-01-06 21:05:04,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:05:04,005 INFO L481 AbstractCegarLoop]: Abstraction has 66442 states and 92482 transitions. [2021-01-06 21:05:04,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 21:05:04,005 INFO L276 IsEmpty]: Start isEmpty. Operand 66442 states and 92482 transitions. [2021-01-06 21:05:04,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-01-06 21:05:04,009 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:05:04,009 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 21:05:04,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-06 21:05:04,009 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:05:04,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:05:04,010 INFO L82 PathProgramCache]: Analyzing trace with hash 578980980, now seen corresponding path program 1 times [2021-01-06 21:05:04,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:05:04,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980127782] [2021-01-06 21:05:04,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:05:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:05:04,266 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:05:04,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980127782] [2021-01-06 21:05:04,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783147175] [2021-01-06 21:05:04,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 21:05:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:05:04,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 24 conjunts are in the unsatisfiable core [2021-01-06 21:05:04,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 21:05:04,617 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2021-01-06 21:05:04,902 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 21:05:05,107 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2021-01-06 21:05:05,554 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:05:05,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 21:05:05,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12] total 20 [2021-01-06 21:05:05,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453046023] [2021-01-06 21:05:05,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-06 21:05:05,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:05:05,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-06 21:05:05,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2021-01-06 21:05:05,557 INFO L87 Difference]: Start difference. First operand 66442 states and 92482 transitions. Second operand 20 states. [2021-01-06 21:05:06,350 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2021-01-06 21:05:06,784 WARN L197 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2021-01-06 21:05:07,244 WARN L197 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 101 [2021-01-06 21:05:07,682 WARN L197 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2021-01-06 21:05:08,170 WARN L197 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 104 [2021-01-06 21:05:08,953 WARN L197 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 110 [2021-01-06 21:05:09,468 WARN L197 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2021-01-06 21:05:09,993 WARN L197 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 110 [2021-01-06 21:05:10,634 WARN L197 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 121 [2021-01-06 21:05:11,169 WARN L197 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 112 [2021-01-06 21:05:11,768 WARN L197 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 110 [2021-01-06 21:05:12,321 WARN L197 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2021-01-06 21:05:12,866 WARN L197 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 110 [2021-01-06 21:05:13,518 WARN L197 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 121 [2021-01-06 21:05:14,299 WARN L197 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 110 [2021-01-06 21:05:14,976 WARN L197 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2021-01-06 21:05:15,597 WARN L197 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 115 [2021-01-06 21:05:16,235 WARN L197 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 104 [2021-01-06 21:05:17,996 WARN L197 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 104 [2021-01-06 21:05:18,589 WARN L197 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 104 [2021-01-06 21:05:19,221 WARN L197 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 115 [2021-01-06 21:05:19,858 WARN L197 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 115 [2021-01-06 21:05:20,492 WARN L197 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2021-01-06 21:05:21,234 WARN L197 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 104 [2021-01-06 21:05:21,840 WARN L197 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 104 [2021-01-06 21:05:22,507 WARN L197 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2021-01-06 21:05:23,234 WARN L197 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 109 [2021-01-06 21:05:23,800 WARN L197 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 95 [2021-01-06 21:05:24,411 WARN L197 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 102 [2021-01-06 21:05:25,100 WARN L197 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 102 [2021-01-06 21:05:25,842 WARN L197 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2021-01-06 21:05:26,666 WARN L197 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2021-01-06 21:05:27,076 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-01-06 21:05:27,495 WARN L197 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-01-06 21:05:28,204 WARN L197 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 98 [2021-01-06 21:05:28,998 WARN L197 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 107 [2021-01-06 21:05:30,024 WARN L197 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 118 [2021-01-06 21:05:30,883 WARN L197 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-01-06 21:05:31,597 WARN L197 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-01-06 21:05:32,026 WARN L197 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-01-06 21:05:32,589 WARN L197 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-01-06 21:05:33,278 WARN L197 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2021-01-06 21:05:34,069 WARN L197 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 99 [2021-01-06 21:05:35,061 WARN L197 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2021-01-06 21:05:36,114 WARN L197 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 107 [2021-01-06 21:05:37,190 WARN L197 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2021-01-06 21:05:38,117 WARN L197 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 95 [2021-01-06 21:05:41,344 WARN L197 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2021-01-06 21:05:42,228 WARN L197 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 107 [2021-01-06 21:05:42,876 WARN L197 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-01-06 21:05:43,435 WARN L197 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-01-06 21:05:44,247 WARN L197 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 113 [2021-01-06 21:05:45,092 WARN L197 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 104 [2021-01-06 21:05:45,997 WARN L197 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2021-01-06 21:05:46,904 WARN L197 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 102 [2021-01-06 21:05:47,682 WARN L197 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 105 [2021-01-06 21:05:48,466 WARN L197 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2021-01-06 21:05:49,136 WARN L197 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2021-01-06 21:05:55,723 WARN L197 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 96 [2021-01-06 21:05:56,746 WARN L197 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 107 [2021-01-06 21:05:58,008 WARN L197 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 102 [2021-01-06 21:05:58,805 WARN L197 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 99 [2021-01-06 21:05:59,145 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-01-06 21:05:59,989 WARN L197 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2021-01-06 21:06:01,309 WARN L197 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 119 DAG size of output: 108 [2021-01-06 21:06:02,441 WARN L197 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 105 [2021-01-06 21:06:03,394 WARN L197 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2021-01-06 21:06:03,861 WARN L197 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-01-06 21:06:04,947 WARN L197 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2021-01-06 21:06:05,667 WARN L197 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2021-01-06 21:06:06,224 WARN L197 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2021-01-06 21:06:07,680 WARN L197 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 122 DAG size of output: 111 [2021-01-06 21:06:09,058 WARN L197 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 102 DAG size of output: 99 [2021-01-06 21:06:10,202 WARN L197 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2021-01-06 21:06:11,885 WARN L197 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2021-01-06 21:06:13,090 WARN L197 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2021-01-06 21:06:14,584 WARN L197 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 119 DAG size of output: 108 [2021-01-06 21:06:15,404 WARN L197 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2021-01-06 21:06:16,191 WARN L197 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2021-01-06 21:06:16,570 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-01-06 21:06:17,899 WARN L197 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2021-01-06 21:06:19,538 WARN L197 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 124 DAG size of output: 113 [2021-01-06 21:06:20,737 WARN L197 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-06 21:06:22,128 WARN L197 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2021-01-06 21:06:24,031 WARN L197 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 122 DAG size of output: 111 [2021-01-06 21:06:25,029 WARN L197 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2021-01-06 21:06:25,453 WARN L197 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-01-06 21:06:25,876 WARN L197 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-01-06 21:06:26,884 WARN L197 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 105 [2021-01-06 21:06:27,868 WARN L197 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-06 21:06:28,559 WARN L197 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-01-06 21:06:29,156 WARN L197 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-01-06 21:06:30,145 WARN L197 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-01-06 21:06:35,244 WARN L197 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 135 DAG size of output: 124 [2021-01-06 21:06:37,081 WARN L197 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 130 DAG size of output: 119 [2021-01-06 21:06:38,043 WARN L197 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2021-01-06 21:06:39,980 WARN L197 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 119 DAG size of output: 112