/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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 20:40:12,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 20:40:12,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 20:40:12,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 20:40:12,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 20:40:12,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 20:40:12,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 20:40:12,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 20:40:12,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 20:40:12,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 20:40:12,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 20:40:12,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 20:40:12,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 20:40:12,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 20:40:12,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 20:40:12,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 20:40:12,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 20:40:12,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 20:40:12,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 20:40:12,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 20:40:12,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 20:40:12,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 20:40:12,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 20:40:12,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 20:40:12,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 20:40:12,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 20:40:12,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 20:40:12,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 20:40:12,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 20:40:12,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 20:40:12,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 20:40:12,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 20:40:12,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 20:40:12,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 20:40:12,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 20:40:12,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 20:40:12,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 20:40:12,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 20:40:12,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 20:40:12,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 20:40:12,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 20:40:12,383 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 20:40:12,409 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 20:40:12,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 20:40:12,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 20:40:12,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 20:40:12,411 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 20:40:12,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 20:40:12,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 20:40:12,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 20:40:12,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 20:40:12,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 20:40:12,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 20:40:12,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 20:40:12,413 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 20:40:12,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 20:40:12,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 20:40:12,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 20:40:12,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 20:40:12,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 20:40:12,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 20:40:12,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 20:40:12,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 20:40:12,416 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 20:40:12,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 20:40:12,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 20:40:12,417 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 20:40:12,417 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 20:40:12,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 20:40:12,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 20:40:12,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 20:40:12,820 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 20:40:12,821 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 20:40:12,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2021-01-06 20:40:12,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5184dc8e2/bc8746170aec484d919e45eac4ef9905/FLAG398fae888 [2021-01-06 20:40:13,523 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 20:40:13,524 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2021-01-06 20:40:13,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5184dc8e2/bc8746170aec484d919e45eac4ef9905/FLAG398fae888 [2021-01-06 20:40:13,861 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5184dc8e2/bc8746170aec484d919e45eac4ef9905 [2021-01-06 20:40:13,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 20:40:13,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 20:40:13,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 20:40:13,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 20:40:13,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 20:40:13,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 08:40:13" (1/1) ... [2021-01-06 20:40:13,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b3402f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:40:13, skipping insertion in model container [2021-01-06 20:40:13,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 08:40:13" (1/1) ... [2021-01-06 20:40:13,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 20:40:13,973 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[~alive1~0,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[~alive2~0,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[~alive3~0,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[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_10449~0,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[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] 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[~node2__m2~0,] 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[~node3__m3~0,] 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[~node4__m4~0,] 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[~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[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_10547~0,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,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_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__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] 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__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] 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__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] 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[~__tmp_10696_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] 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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_10712~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] [2021-01-06 20:40:14,352 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[6849,6862] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_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__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] 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__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] 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__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] 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[~__tmp_10696_0~0,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[~node4____CPAchecker_TMP_0~1,] 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_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] 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[~node3____CPAchecker_TMP_0~1,] 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_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] 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[~node2____CPAchecker_TMP_0~1,] 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_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] 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_0~1,] 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_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_10726~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] 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[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,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[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2021-01-06 20:40:14,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 20:40:14,431 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[~alive1~0,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[~alive2~0,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[~alive3~0,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[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_10449~0,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[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] 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[~node2__m2~0,] 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[~node3__m3~0,] 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[~node4__m4~0,] 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[~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[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_10547~0,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,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_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__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] 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__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] 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__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] 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[~__tmp_10696_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] 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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_10712~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] [2021-01-06 20:40:14,507 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[6849,6862] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_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__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] 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__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] 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__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] 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[~__tmp_10696_0~0,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[~node4____CPAchecker_TMP_0~1,] 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_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] 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[~node3____CPAchecker_TMP_0~1,] 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_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] 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[~node2____CPAchecker_TMP_0~1,] 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_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] 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_0~1,] 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_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_10726~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] 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[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,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[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2021-01-06 20:40:14,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 20:40:14,576 INFO L208 MainTranslator]: Completed translation [2021-01-06 20:40:14,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:40:14 WrapperNode [2021-01-06 20:40:14,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 20:40:14,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 20:40:14,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 20:40:14,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 20:40:14,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:40:14" (1/1) ... [2021-01-06 20:40:14,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:40:14" (1/1) ... [2021-01-06 20:40:14,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 20:40:14,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 20:40:14,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 20:40:14,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 20:40:14,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:40:14" (1/1) ... [2021-01-06 20:40:14,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:40:14" (1/1) ... [2021-01-06 20:40:14,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:40:14" (1/1) ... [2021-01-06 20:40:14,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:40:14" (1/1) ... [2021-01-06 20:40:14,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:40:14" (1/1) ... [2021-01-06 20:40:14,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:40:14" (1/1) ... [2021-01-06 20:40:14,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:40:14" (1/1) ... [2021-01-06 20:40:14,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 20:40:14,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 20:40:14,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 20:40:14,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 20:40:14,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:40:14" (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 20:40:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 20:40:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 20:40:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 20:40:14,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 20:40:15,758 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 20:40:15,759 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-01-06 20:40:15,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 08:40:15 BoogieIcfgContainer [2021-01-06 20:40:15,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 20:40:15,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 20:40:15,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 20:40:15,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 20:40:15,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 08:40:13" (1/3) ... [2021-01-06 20:40:15,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6752ce62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 08:40:15, skipping insertion in model container [2021-01-06 20:40:15,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:40:14" (2/3) ... [2021-01-06 20:40:15,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6752ce62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 08:40:15, skipping insertion in model container [2021-01-06 20:40:15,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 08:40:15" (3/3) ... [2021-01-06 20:40:15,771 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2021-01-06 20:40:15,778 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 20:40:15,783 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 20:40:15,802 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 20:40:15,830 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 20:40:15,830 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 20:40:15,830 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 20:40:15,831 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 20:40:15,831 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 20:40:15,831 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 20:40:15,831 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 20:40:15,831 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 20:40:15,851 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2021-01-06 20:40:15,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-01-06 20:40:15,860 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:40:15,861 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 20:40:15,861 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:40:15,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:40:15,868 INFO L82 PathProgramCache]: Analyzing trace with hash 965210613, now seen corresponding path program 1 times [2021-01-06 20:40:15,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:40:15,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072490388] [2021-01-06 20:40:15,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:40:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:40:16,472 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 20:40:16,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072490388] [2021-01-06 20:40:16,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:40:16,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:40:16,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341504731] [2021-01-06 20:40:16,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:40:16,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:40:16,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:40:16,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:40:16,506 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 3 states. [2021-01-06 20:40:16,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:40:16,684 INFO L93 Difference]: Finished difference Result 346 states and 569 transitions. [2021-01-06 20:40:16,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:40:16,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2021-01-06 20:40:16,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:40:16,701 INFO L225 Difference]: With dead ends: 346 [2021-01-06 20:40:16,701 INFO L226 Difference]: Without dead ends: 261 [2021-01-06 20:40:16,705 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 20:40:16,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-01-06 20:40:16,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 259. [2021-01-06 20:40:16,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2021-01-06 20:40:16,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 387 transitions. [2021-01-06 20:40:16,771 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 387 transitions. Word has length 64 [2021-01-06 20:40:16,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:40:16,772 INFO L481 AbstractCegarLoop]: Abstraction has 259 states and 387 transitions. [2021-01-06 20:40:16,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:40:16,772 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 387 transitions. [2021-01-06 20:40:16,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-01-06 20:40:16,775 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:40:16,778 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] [2021-01-06 20:40:16,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 20:40:16,779 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:40:16,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:40:16,780 INFO L82 PathProgramCache]: Analyzing trace with hash -404660772, now seen corresponding path program 1 times [2021-01-06 20:40:16,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:40:16,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955841370] [2021-01-06 20:40:16,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:40:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:40:17,071 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 20:40:17,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955841370] [2021-01-06 20:40:17,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:40:17,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 20:40:17,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895599449] [2021-01-06 20:40:17,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:40:17,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:40:17,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:40:17,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:40:17,077 INFO L87 Difference]: Start difference. First operand 259 states and 387 transitions. Second operand 6 states. [2021-01-06 20:40:17,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:40:17,308 INFO L93 Difference]: Finished difference Result 959 states and 1471 transitions. [2021-01-06 20:40:17,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:40:17,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2021-01-06 20:40:17,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:40:17,314 INFO L225 Difference]: With dead ends: 959 [2021-01-06 20:40:17,314 INFO L226 Difference]: Without dead ends: 759 [2021-01-06 20:40:17,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:40:17,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2021-01-06 20:40:17,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 753. [2021-01-06 20:40:17,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2021-01-06 20:40:17,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1145 transitions. [2021-01-06 20:40:17,385 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1145 transitions. Word has length 65 [2021-01-06 20:40:17,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:40:17,386 INFO L481 AbstractCegarLoop]: Abstraction has 753 states and 1145 transitions. [2021-01-06 20:40:17,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:40:17,386 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1145 transitions. [2021-01-06 20:40:17,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-01-06 20:40:17,394 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:40:17,394 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 20:40:17,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 20:40:17,395 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:40:17,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:40:17,397 INFO L82 PathProgramCache]: Analyzing trace with hash 372471029, now seen corresponding path program 1 times [2021-01-06 20:40:17,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:40:17,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921729445] [2021-01-06 20:40:17,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:40:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:40:17,541 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 20:40:17,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921729445] [2021-01-06 20:40:17,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:40:17,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:40:17,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886354039] [2021-01-06 20:40:17,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:40:17,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:40:17,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:40:17,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:40:17,544 INFO L87 Difference]: Start difference. First operand 753 states and 1145 transitions. Second operand 6 states. [2021-01-06 20:40:17,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:40:17,946 INFO L93 Difference]: Finished difference Result 2517 states and 3884 transitions. [2021-01-06 20:40:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:40:17,947 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2021-01-06 20:40:17,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:40:17,958 INFO L225 Difference]: With dead ends: 2517 [2021-01-06 20:40:17,958 INFO L226 Difference]: Without dead ends: 1811 [2021-01-06 20:40:17,961 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 20:40:17,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2021-01-06 20:40:18,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1807. [2021-01-06 20:40:18,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1807 states. [2021-01-06 20:40:18,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2778 transitions. [2021-01-06 20:40:18,136 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2778 transitions. Word has length 66 [2021-01-06 20:40:18,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:40:18,143 INFO L481 AbstractCegarLoop]: Abstraction has 1807 states and 2778 transitions. [2021-01-06 20:40:18,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:40:18,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2778 transitions. [2021-01-06 20:40:18,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-01-06 20:40:18,146 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:40:18,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:40:18,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 20:40:18,147 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:40:18,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:40:18,148 INFO L82 PathProgramCache]: Analyzing trace with hash 342598487, now seen corresponding path program 1 times [2021-01-06 20:40:18,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:40:18,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168954898] [2021-01-06 20:40:18,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:40:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:40:18,300 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 20:40:18,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168954898] [2021-01-06 20:40:18,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:40:18,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:40:18,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745817865] [2021-01-06 20:40:18,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:40:18,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:40:18,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:40:18,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:40:18,303 INFO L87 Difference]: Start difference. First operand 1807 states and 2778 transitions. Second operand 6 states. [2021-01-06 20:40:18,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:40:18,884 INFO L93 Difference]: Finished difference Result 6247 states and 9679 transitions. [2021-01-06 20:40:18,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:40:18,884 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2021-01-06 20:40:18,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:40:18,910 INFO L225 Difference]: With dead ends: 6247 [2021-01-06 20:40:18,910 INFO L226 Difference]: Without dead ends: 4537 [2021-01-06 20:40:18,914 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 20:40:18,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4537 states. [2021-01-06 20:40:19,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4537 to 4127. [2021-01-06 20:40:19,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4127 states. [2021-01-06 20:40:19,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4127 states to 4127 states and 6359 transitions. [2021-01-06 20:40:19,258 INFO L78 Accepts]: Start accepts. Automaton has 4127 states and 6359 transitions. Word has length 66 [2021-01-06 20:40:19,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:40:19,259 INFO L481 AbstractCegarLoop]: Abstraction has 4127 states and 6359 transitions. [2021-01-06 20:40:19,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:40:19,259 INFO L276 IsEmpty]: Start isEmpty. Operand 4127 states and 6359 transitions. [2021-01-06 20:40:19,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-01-06 20:40:19,262 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:40:19,262 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 20:40:19,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 20:40:19,263 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:40:19,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:40:19,263 INFO L82 PathProgramCache]: Analyzing trace with hash -440340154, now seen corresponding path program 1 times [2021-01-06 20:40:19,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:40:19,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094352086] [2021-01-06 20:40:19,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:40:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:40:19,350 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 20:40:19,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094352086] [2021-01-06 20:40:19,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:40:19,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:40:19,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957593367] [2021-01-06 20:40:19,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:40:19,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:40:19,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:40:19,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:40:19,353 INFO L87 Difference]: Start difference. First operand 4127 states and 6359 transitions. Second operand 6 states. [2021-01-06 20:40:20,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:40:20,296 INFO L93 Difference]: Finished difference Result 15476 states and 23896 transitions. [2021-01-06 20:40:20,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:40:20,299 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2021-01-06 20:40:20,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:40:20,358 INFO L225 Difference]: With dead ends: 15476 [2021-01-06 20:40:20,359 INFO L226 Difference]: Without dead ends: 11419 [2021-01-06 20:40:20,370 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 20:40:20,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11419 states. [2021-01-06 20:40:21,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11419 to 11415. [2021-01-06 20:40:21,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11415 states. [2021-01-06 20:40:21,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11415 states to 11415 states and 17539 transitions. [2021-01-06 20:40:21,238 INFO L78 Accepts]: Start accepts. Automaton has 11415 states and 17539 transitions. Word has length 66 [2021-01-06 20:40:21,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:40:21,238 INFO L481 AbstractCegarLoop]: Abstraction has 11415 states and 17539 transitions. [2021-01-06 20:40:21,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:40:21,238 INFO L276 IsEmpty]: Start isEmpty. Operand 11415 states and 17539 transitions. [2021-01-06 20:40:21,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-01-06 20:40:21,241 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:40:21,241 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 20:40:21,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 20:40:21,242 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:40:21,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:40:21,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1058443688, now seen corresponding path program 1 times [2021-01-06 20:40:21,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:40:21,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453773921] [2021-01-06 20:40:21,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:40:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:40:21,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:40:21,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453773921] [2021-01-06 20:40:21,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:40:21,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:40:21,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784266838] [2021-01-06 20:40:21,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:40:21,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:40:21,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:40:21,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:40:21,343 INFO L87 Difference]: Start difference. First operand 11415 states and 17539 transitions. Second operand 5 states. [2021-01-06 20:40:22,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:40:22,579 INFO L93 Difference]: Finished difference Result 21140 states and 32261 transitions. [2021-01-06 20:40:22,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:40:22,580 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2021-01-06 20:40:22,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:40:22,678 INFO L225 Difference]: With dead ends: 21140 [2021-01-06 20:40:22,679 INFO L226 Difference]: Without dead ends: 21138 [2021-01-06 20:40:22,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 20:40:22,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21138 states. [2021-01-06 20:40:23,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21138 to 11613. [2021-01-06 20:40:23,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11613 states. [2021-01-06 20:40:23,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11613 states to 11613 states and 17737 transitions. [2021-01-06 20:40:23,811 INFO L78 Accepts]: Start accepts. Automaton has 11613 states and 17737 transitions. Word has length 67 [2021-01-06 20:40:23,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:40:23,812 INFO L481 AbstractCegarLoop]: Abstraction has 11613 states and 17737 transitions. [2021-01-06 20:40:23,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:40:23,812 INFO L276 IsEmpty]: Start isEmpty. Operand 11613 states and 17737 transitions. [2021-01-06 20:40:23,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-01-06 20:40:23,815 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:40:23,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:40:23,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 20:40:23,816 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:40:23,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:40:23,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1287643169, now seen corresponding path program 1 times [2021-01-06 20:40:23,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:40:23,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954733328] [2021-01-06 20:40:23,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:40:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:40:23,970 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 20:40:23,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954733328] [2021-01-06 20:40:23,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:40:23,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 20:40:23,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696320294] [2021-01-06 20:40:23,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 20:40:23,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:40:23,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 20:40:23,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 20:40:23,973 INFO L87 Difference]: Start difference. First operand 11613 states and 17737 transitions. Second operand 4 states. [2021-01-06 20:40:25,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:40:25,431 INFO L93 Difference]: Finished difference Result 32350 states and 49260 transitions. [2021-01-06 20:40:25,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 20:40:25,431 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2021-01-06 20:40:25,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:40:25,487 INFO L225 Difference]: With dead ends: 32350 [2021-01-06 20:40:25,487 INFO L226 Difference]: Without dead ends: 21338 [2021-01-06 20:40:25,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 20:40:25,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21338 states. [2021-01-06 20:40:27,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21338 to 21336. [2021-01-06 20:40:27,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21336 states. [2021-01-06 20:40:27,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21336 states to 21336 states and 32260 transitions. [2021-01-06 20:40:27,194 INFO L78 Accepts]: Start accepts. Automaton has 21336 states and 32260 transitions. Word has length 68 [2021-01-06 20:40:27,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:40:27,195 INFO L481 AbstractCegarLoop]: Abstraction has 21336 states and 32260 transitions. [2021-01-06 20:40:27,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 20:40:27,195 INFO L276 IsEmpty]: Start isEmpty. Operand 21336 states and 32260 transitions. [2021-01-06 20:40:27,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 20:40:27,203 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:40:27,203 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:40:27,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 20:40:27,204 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:40:27,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:40:27,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1292543968, now seen corresponding path program 1 times [2021-01-06 20:40:27,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:40:27,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309193816] [2021-01-06 20:40:27,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:40:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:40:27,257 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 20:40:27,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309193816] [2021-01-06 20:40:27,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:40:27,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:40:27,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799211934] [2021-01-06 20:40:27,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:40:27,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:40:27,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:40:27,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:40:27,260 INFO L87 Difference]: Start difference. First operand 21336 states and 32260 transitions. Second operand 3 states. [2021-01-06 20:40:28,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:40:28,694 INFO L93 Difference]: Finished difference Result 29698 states and 44778 transitions. [2021-01-06 20:40:28,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:40:28,694 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2021-01-06 20:40:28,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:40:28,755 INFO L225 Difference]: With dead ends: 29698 [2021-01-06 20:40:28,756 INFO L226 Difference]: Without dead ends: 25112 [2021-01-06 20:40:28,768 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 20:40:28,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25112 states. [2021-01-06 20:40:30,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25112 to 23127. [2021-01-06 20:40:30,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23127 states. [2021-01-06 20:40:30,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23127 states to 23127 states and 34386 transitions. [2021-01-06 20:40:30,107 INFO L78 Accepts]: Start accepts. Automaton has 23127 states and 34386 transitions. Word has length 69 [2021-01-06 20:40:30,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:40:30,108 INFO L481 AbstractCegarLoop]: Abstraction has 23127 states and 34386 transitions. [2021-01-06 20:40:30,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:40:30,108 INFO L276 IsEmpty]: Start isEmpty. Operand 23127 states and 34386 transitions. [2021-01-06 20:40:30,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 20:40:30,110 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:40:30,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:40:30,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 20:40:30,111 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:40:30,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:40:30,111 INFO L82 PathProgramCache]: Analyzing trace with hash 494119873, now seen corresponding path program 1 times [2021-01-06 20:40:30,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:40:30,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452970671] [2021-01-06 20:40:30,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:40:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:40:30,161 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 20:40:30,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452970671] [2021-01-06 20:40:30,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:40:30,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:40:30,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713080548] [2021-01-06 20:40:30,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:40:30,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:40:30,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:40:30,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:40:30,164 INFO L87 Difference]: Start difference. First operand 23127 states and 34386 transitions. Second operand 3 states. [2021-01-06 20:40:31,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:40:31,689 INFO L93 Difference]: Finished difference Result 40980 states and 61017 transitions. [2021-01-06 20:40:31,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:40:31,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2021-01-06 20:40:31,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:40:31,767 INFO L225 Difference]: With dead ends: 40980 [2021-01-06 20:40:31,767 INFO L226 Difference]: Without dead ends: 28672 [2021-01-06 20:40:31,795 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 20:40:31,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28672 states. [2021-01-06 20:40:33,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28672 to 28238. [2021-01-06 20:40:33,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28238 states. [2021-01-06 20:40:33,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28238 states to 28238 states and 41331 transitions. [2021-01-06 20:40:33,874 INFO L78 Accepts]: Start accepts. Automaton has 28238 states and 41331 transitions. Word has length 69 [2021-01-06 20:40:33,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:40:33,874 INFO L481 AbstractCegarLoop]: Abstraction has 28238 states and 41331 transitions. [2021-01-06 20:40:33,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:40:33,874 INFO L276 IsEmpty]: Start isEmpty. Operand 28238 states and 41331 transitions. [2021-01-06 20:40:33,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 20:40:33,881 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:40:33,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:40:33,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 20:40:33,882 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:40:33,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:40:33,882 INFO L82 PathProgramCache]: Analyzing trace with hash -2048736576, now seen corresponding path program 1 times [2021-01-06 20:40:33,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:40:33,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788840370] [2021-01-06 20:40:33,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:40:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:40:33,959 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 20:40:33,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788840370] [2021-01-06 20:40:33,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:40:33,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 20:40:33,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144838934] [2021-01-06 20:40:33,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:40:33,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:40:33,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:40:33,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:40:33,961 INFO L87 Difference]: Start difference. First operand 28238 states and 41331 transitions. Second operand 6 states. [2021-01-06 20:40:38,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:40:38,269 INFO L93 Difference]: Finished difference Result 100546 states and 146881 transitions. [2021-01-06 20:40:38,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:40:38,269 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2021-01-06 20:40:38,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:40:38,415 INFO L225 Difference]: With dead ends: 100546 [2021-01-06 20:40:38,415 INFO L226 Difference]: Without dead ends: 78063 [2021-01-06 20:40:38,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-01-06 20:40:38,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78063 states. [2021-01-06 20:40:41,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78063 to 42330. [2021-01-06 20:40:41,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42330 states. [2021-01-06 20:40:41,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42330 states to 42330 states and 61781 transitions. [2021-01-06 20:40:41,380 INFO L78 Accepts]: Start accepts. Automaton has 42330 states and 61781 transitions. Word has length 69 [2021-01-06 20:40:41,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:40:41,380 INFO L481 AbstractCegarLoop]: Abstraction has 42330 states and 61781 transitions. [2021-01-06 20:40:41,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:40:41,381 INFO L276 IsEmpty]: Start isEmpty. Operand 42330 states and 61781 transitions. [2021-01-06 20:40:41,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 20:40:41,383 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:40:41,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:40:41,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 20:40:41,384 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:40:41,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:40:41,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1719145697, now seen corresponding path program 1 times [2021-01-06 20:40:41,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:40:41,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769506225] [2021-01-06 20:40:41,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:40:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:40:41,440 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 20:40:41,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769506225] [2021-01-06 20:40:41,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:40:41,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:40:41,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605671746] [2021-01-06 20:40:41,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:40:41,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:40:41,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:40:41,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:40:41,442 INFO L87 Difference]: Start difference. First operand 42330 states and 61781 transitions. Second operand 3 states. [2021-01-06 20:40:46,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:40:46,240 INFO L93 Difference]: Finished difference Result 107900 states and 157392 transitions. [2021-01-06 20:40:46,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:40:46,241 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2021-01-06 20:40:46,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:40:46,360 INFO L225 Difference]: With dead ends: 107900 [2021-01-06 20:40:46,360 INFO L226 Difference]: Without dead ends: 73375 [2021-01-06 20:40:46,401 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 20:40:46,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73375 states. [2021-01-06 20:40:51,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73375 to 73373. [2021-01-06 20:40:51,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73373 states. [2021-01-06 20:40:51,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73373 states to 73373 states and 105806 transitions. [2021-01-06 20:40:51,230 INFO L78 Accepts]: Start accepts. Automaton has 73373 states and 105806 transitions. Word has length 69 [2021-01-06 20:40:51,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:40:51,231 INFO L481 AbstractCegarLoop]: Abstraction has 73373 states and 105806 transitions. [2021-01-06 20:40:51,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:40:51,231 INFO L276 IsEmpty]: Start isEmpty. Operand 73373 states and 105806 transitions. [2021-01-06 20:40:51,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 20:40:51,235 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:40:51,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:40:51,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 20:40:51,235 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:40:51,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:40:51,236 INFO L82 PathProgramCache]: Analyzing trace with hash -760950752, now seen corresponding path program 1 times [2021-01-06 20:40:51,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:40:51,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740202144] [2021-01-06 20:40:51,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:40:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:40:51,500 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 20:40:51,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740202144] [2021-01-06 20:40:51,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:40:51,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 20:40:51,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243446244] [2021-01-06 20:40:51,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:40:51,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:40:51,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:40:51,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:40:51,502 INFO L87 Difference]: Start difference. First operand 73373 states and 105806 transitions. Second operand 6 states. [2021-01-06 20:41:01,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:41:01,388 INFO L93 Difference]: Finished difference Result 181563 states and 262266 transitions. [2021-01-06 20:41:01,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:41:01,389 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2021-01-06 20:41:01,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:41:01,650 INFO L225 Difference]: With dead ends: 181563 [2021-01-06 20:41:01,650 INFO L226 Difference]: Without dead ends: 168789 [2021-01-06 20:41:01,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:41:01,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168789 states. [2021-01-06 20:41:08,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168789 to 86547. [2021-01-06 20:41:08,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86547 states. [2021-01-06 20:41:08,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86547 states to 86547 states and 124754 transitions. [2021-01-06 20:41:08,293 INFO L78 Accepts]: Start accepts. Automaton has 86547 states and 124754 transitions. Word has length 69 [2021-01-06 20:41:08,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:41:08,293 INFO L481 AbstractCegarLoop]: Abstraction has 86547 states and 124754 transitions. [2021-01-06 20:41:08,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:41:08,293 INFO L276 IsEmpty]: Start isEmpty. Operand 86547 states and 124754 transitions. [2021-01-06 20:41:08,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 20:41:08,298 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:41:08,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:41:08,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 20:41:08,299 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:41:08,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:41:08,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1412359137, now seen corresponding path program 1 times [2021-01-06 20:41:08,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:41:08,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526755937] [2021-01-06 20:41:08,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:41:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:41:08,380 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 20:41:08,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526755937] [2021-01-06 20:41:08,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:41:08,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 20:41:08,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619108621] [2021-01-06 20:41:08,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:41:08,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:41:08,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:41:08,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:41:08,382 INFO L87 Difference]: Start difference. First operand 86547 states and 124754 transitions. Second operand 6 states. [2021-01-06 20:41:19,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:41:19,285 INFO L93 Difference]: Finished difference Result 194855 states and 281335 transitions. [2021-01-06 20:41:19,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:41:19,286 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2021-01-06 20:41:19,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:41:19,728 INFO L225 Difference]: With dead ends: 194855 [2021-01-06 20:41:19,728 INFO L226 Difference]: Without dead ends: 171443 [2021-01-06 20:41:19,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:41:19,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171443 states. [2021-01-06 20:41:27,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171443 to 97017. [2021-01-06 20:41:27,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97017 states. [2021-01-06 20:41:27,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97017 states to 97017 states and 140036 transitions. [2021-01-06 20:41:27,491 INFO L78 Accepts]: Start accepts. Automaton has 97017 states and 140036 transitions. Word has length 69 [2021-01-06 20:41:27,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:41:27,491 INFO L481 AbstractCegarLoop]: Abstraction has 97017 states and 140036 transitions. [2021-01-06 20:41:27,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:41:27,491 INFO L276 IsEmpty]: Start isEmpty. Operand 97017 states and 140036 transitions. [2021-01-06 20:41:27,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 20:41:27,498 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:41:27,498 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, 1, 1, 1] [2021-01-06 20:41:27,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-06 20:41:27,498 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:41:27,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:41:27,499 INFO L82 PathProgramCache]: Analyzing trace with hash -677295103, now seen corresponding path program 1 times [2021-01-06 20:41:27,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:41:27,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442216010] [2021-01-06 20:41:27,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:41:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:41:27,561 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 20:41:27,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442216010] [2021-01-06 20:41:27,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:41:27,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 20:41:27,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040560273] [2021-01-06 20:41:27,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:41:27,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:41:27,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:41:27,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:41:27,563 INFO L87 Difference]: Start difference. First operand 97017 states and 140036 transitions. Second operand 5 states. [2021-01-06 20:41:38,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:41:38,218 INFO L93 Difference]: Finished difference Result 231474 states and 333368 transitions. [2021-01-06 20:41:38,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:41:38,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2021-01-06 20:41:38,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:41:38,430 INFO L225 Difference]: With dead ends: 231474 [2021-01-06 20:41:38,430 INFO L226 Difference]: Without dead ends: 134571 [2021-01-06 20:41:38,498 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 20:41:38,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134571 states. [2021-01-06 20:41:46,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134571 to 97017. [2021-01-06 20:41:46,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97017 states. [2021-01-06 20:41:46,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97017 states to 97017 states and 138991 transitions. [2021-01-06 20:41:46,271 INFO L78 Accepts]: Start accepts. Automaton has 97017 states and 138991 transitions. Word has length 69 [2021-01-06 20:41:46,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:41:46,271 INFO L481 AbstractCegarLoop]: Abstraction has 97017 states and 138991 transitions. [2021-01-06 20:41:46,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:41:46,271 INFO L276 IsEmpty]: Start isEmpty. Operand 97017 states and 138991 transitions. [2021-01-06 20:41:46,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-01-06 20:41:46,277 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:41:46,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:41:46,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-06 20:41:46,278 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:41:46,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:41:46,278 INFO L82 PathProgramCache]: Analyzing trace with hash -2051708963, now seen corresponding path program 1 times [2021-01-06 20:41:46,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:41:46,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514811711] [2021-01-06 20:41:46,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:41:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:41:46,365 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 20:41:46,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514811711] [2021-01-06 20:41:46,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:41:46,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 20:41:46,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284287710] [2021-01-06 20:41:46,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:41:46,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:41:46,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:41:46,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:41:46,367 INFO L87 Difference]: Start difference. First operand 97017 states and 138991 transitions. Second operand 6 states. [2021-01-06 20:41:59,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:41:59,385 INFO L93 Difference]: Finished difference Result 217404 states and 311723 transitions. [2021-01-06 20:41:59,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:41:59,386 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2021-01-06 20:41:59,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:41:59,781 INFO L225 Difference]: With dead ends: 217404 [2021-01-06 20:41:59,781 INFO L226 Difference]: Without dead ends: 169647 [2021-01-06 20:41:59,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-01-06 20:41:59,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169647 states. [2021-01-06 20:42:09,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169647 to 112320. [2021-01-06 20:42:09,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112320 states. [2021-01-06 20:42:09,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112320 states to 112320 states and 160869 transitions. [2021-01-06 20:42:09,446 INFO L78 Accepts]: Start accepts. Automaton has 112320 states and 160869 transitions. Word has length 70 [2021-01-06 20:42:09,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:42:09,446 INFO L481 AbstractCegarLoop]: Abstraction has 112320 states and 160869 transitions. [2021-01-06 20:42:09,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:42:09,446 INFO L276 IsEmpty]: Start isEmpty. Operand 112320 states and 160869 transitions. [2021-01-06 20:42:09,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-01-06 20:42:09,453 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:42:09,453 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:42:09,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-06 20:42:09,454 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:42:09,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:42:09,454 INFO L82 PathProgramCache]: Analyzing trace with hash -652960215, now seen corresponding path program 1 times [2021-01-06 20:42:09,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:42:09,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450606996] [2021-01-06 20:42:09,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:42:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:42:09,497 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 20:42:09,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450606996] [2021-01-06 20:42:09,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:42:09,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:42:09,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270650533] [2021-01-06 20:42:09,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:42:09,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:42:09,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:42:09,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:42:09,499 INFO L87 Difference]: Start difference. First operand 112320 states and 160869 transitions. Second operand 3 states.