/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.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 10:55:31,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 10:55:31,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 10:55:31,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 10:55:31,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 10:55:31,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 10:55:31,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 10:55:31,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 10:55:31,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 10:55:31,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 10:55:31,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 10:55:31,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 10:55:31,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 10:55:31,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 10:55:31,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 10:55:31,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 10:55:31,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 10:55:31,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 10:55:31,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 10:55:31,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 10:55:31,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 10:55:31,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 10:55:31,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 10:55:31,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 10:55:31,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 10:55:31,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 10:55:31,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 10:55:31,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 10:55:31,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 10:55:31,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 10:55:31,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 10:55:31,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 10:55:31,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 10:55:31,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 10:55:31,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 10:55:31,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 10:55:31,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 10:55:31,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 10:55:31,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 10:55:31,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 10:55:31,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 10:55:31,488 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 10:55:31,516 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 10:55:31,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 10:55:31,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 10:55:31,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 10:55:31,519 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 10:55:31,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 10:55:31,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 10:55:31,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 10:55:31,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 10:55:31,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 10:55:31,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 10:55:31,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 10:55:31,520 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 10:55:31,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 10:55:31,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 10:55:31,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 10:55:31,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 10:55:31,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:55:31,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 10:55:31,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 10:55:31,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 10:55:31,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 10:55:31,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 10:55:31,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 10:55:31,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 10:55:31,523 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 10:55:31,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 10:55:31,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 10:55:31,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 10:55:31,979 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 10:55:31,980 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 10:55:31,981 INFO L432 ainManager$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.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2020-12-23 10:55:32,082 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/188be781a/e9bc0b1796dd4423ab3c8dbccab2c375/FLAG1601f76d8 [2020-12-23 10:55:32,874 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 10:55:32,877 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2020-12-23 10:55:32,896 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/188be781a/e9bc0b1796dd4423ab3c8dbccab2c375/FLAG1601f76d8 [2020-12-23 10:55:33,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/188be781a/e9bc0b1796dd4423ab3c8dbccab2c375 [2020-12-23 10:55:33,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 10:55:33,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 10:55:33,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 10:55:33,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 10:55:33,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 10:55:33,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:55:33" (1/1) ... [2020-12-23 10:55:33,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d7e7506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:55:33, skipping insertion in model container [2020-12-23 10:55:33,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:55:33" (1/1) ... [2020-12-23 10:55:33,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 10:55:33,228 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[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_185441~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_185636~0,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,] [2020-12-23 10:55:33,517 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.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c[6961,6974] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] 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_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~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_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~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_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~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[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_185755~0,GLOBAL] [2020-12-23 10:55:33,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:55:33,672 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[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_185441~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_185636~0,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,] [2020-12-23 10:55:33,810 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.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c[6961,6974] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] 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_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~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_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~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_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~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[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_185755~0,GLOBAL] [2020-12-23 10:55:33,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:55:33,917 INFO L208 MainTranslator]: Completed translation [2020-12-23 10:55:33,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:55:33 WrapperNode [2020-12-23 10:55:33,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 10:55:33,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 10:55:33,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 10:55:33,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 10:55:33,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:55:33" (1/1) ... [2020-12-23 10:55:33,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:55:33" (1/1) ... [2020-12-23 10:55:34,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 10:55:34,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 10:55:34,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 10:55:34,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 10:55:34,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:55:33" (1/1) ... [2020-12-23 10:55:34,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:55:33" (1/1) ... [2020-12-23 10:55:34,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:55:33" (1/1) ... [2020-12-23 10:55:34,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:55:33" (1/1) ... [2020-12-23 10:55:34,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:55:33" (1/1) ... [2020-12-23 10:55:34,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:55:33" (1/1) ... [2020-12-23 10:55:34,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:55:33" (1/1) ... [2020-12-23 10:55:34,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 10:55:34,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 10:55:34,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 10:55:34,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 10:55:34,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:55:33" (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 [2020-12-23 10:55:34,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 10:55:34,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 10:55:34,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 10:55:34,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 10:55:35,273 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 10:55:35,273 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 10:55:35,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:55:35 BoogieIcfgContainer [2020-12-23 10:55:35,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 10:55:35,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 10:55:35,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 10:55:35,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 10:55:35,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 10:55:33" (1/3) ... [2020-12-23 10:55:35,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617c772a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:55:35, skipping insertion in model container [2020-12-23 10:55:35,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:55:33" (2/3) ... [2020-12-23 10:55:35,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617c772a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:55:35, skipping insertion in model container [2020-12-23 10:55:35,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:55:35" (3/3) ... [2020-12-23 10:55:35,285 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2020-12-23 10:55:35,292 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 10:55:35,298 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 10:55:35,317 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 10:55:35,349 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 10:55:35,349 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 10:55:35,349 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 10:55:35,349 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 10:55:35,349 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 10:55:35,350 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 10:55:35,350 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 10:55:35,350 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 10:55:35,370 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2020-12-23 10:55:35,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-23 10:55:35,384 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:55:35,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:55:35,386 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:55:35,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:55:35,392 INFO L82 PathProgramCache]: Analyzing trace with hash -652154134, now seen corresponding path program 1 times [2020-12-23 10:55:35,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:55:35,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541896769] [2020-12-23 10:55:35,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:55:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:55:35,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:55:35,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541896769] [2020-12-23 10:55:35,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:55:35,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:55:35,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400970813] [2020-12-23 10:55:35,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:55:35,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:55:35,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:55:35,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:55:35,958 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 3 states. [2020-12-23 10:55:36,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:55:36,059 INFO L93 Difference]: Finished difference Result 385 states and 627 transitions. [2020-12-23 10:55:36,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:55:36,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-12-23 10:55:36,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:55:36,094 INFO L225 Difference]: With dead ends: 385 [2020-12-23 10:55:36,094 INFO L226 Difference]: Without dead ends: 260 [2020-12-23 10:55:36,098 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 [2020-12-23 10:55:36,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-12-23 10:55:36,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 258. [2020-12-23 10:55:36,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-12-23 10:55:36,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 386 transitions. [2020-12-23 10:55:36,224 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 386 transitions. Word has length 73 [2020-12-23 10:55:36,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:55:36,225 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 386 transitions. [2020-12-23 10:55:36,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:55:36,225 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 386 transitions. [2020-12-23 10:55:36,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-23 10:55:36,229 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:55:36,229 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:55:36,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 10:55:36,230 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:55:36,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:55:36,238 INFO L82 PathProgramCache]: Analyzing trace with hash -399717739, now seen corresponding path program 1 times [2020-12-23 10:55:36,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:55:36,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610985309] [2020-12-23 10:55:36,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:55:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:55:36,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:55:36,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610985309] [2020-12-23 10:55:36,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:55:36,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:55:36,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406880657] [2020-12-23 10:55:36,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:55:36,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:55:36,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:55:36,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:55:36,452 INFO L87 Difference]: Start difference. First operand 258 states and 386 transitions. Second operand 3 states. [2020-12-23 10:55:36,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:55:36,533 INFO L93 Difference]: Finished difference Result 654 states and 1018 transitions. [2020-12-23 10:55:36,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:55:36,533 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-12-23 10:55:36,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:55:36,538 INFO L225 Difference]: With dead ends: 654 [2020-12-23 10:55:36,538 INFO L226 Difference]: Without dead ends: 440 [2020-12-23 10:55:36,541 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 [2020-12-23 10:55:36,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-12-23 10:55:36,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 438. [2020-12-23 10:55:36,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2020-12-23 10:55:36,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 673 transitions. [2020-12-23 10:55:36,583 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 673 transitions. Word has length 74 [2020-12-23 10:55:36,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:55:36,584 INFO L481 AbstractCegarLoop]: Abstraction has 438 states and 673 transitions. [2020-12-23 10:55:36,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:55:36,584 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 673 transitions. [2020-12-23 10:55:36,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-23 10:55:36,587 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:55:36,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:55:36,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 10:55:36,588 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:55:36,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:55:36,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1868398039, now seen corresponding path program 1 times [2020-12-23 10:55:36,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:55:36,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541036317] [2020-12-23 10:55:36,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:55:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:55:36,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:55:36,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541036317] [2020-12-23 10:55:36,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:55:36,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:55:36,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515596114] [2020-12-23 10:55:36,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:55:36,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:55:36,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:55:36,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:55:36,717 INFO L87 Difference]: Start difference. First operand 438 states and 673 transitions. Second operand 3 states. [2020-12-23 10:55:36,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:55:36,801 INFO L93 Difference]: Finished difference Result 1162 states and 1827 transitions. [2020-12-23 10:55:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:55:36,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-12-23 10:55:36,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:55:36,808 INFO L225 Difference]: With dead ends: 1162 [2020-12-23 10:55:36,808 INFO L226 Difference]: Without dead ends: 768 [2020-12-23 10:55:36,811 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 [2020-12-23 10:55:36,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2020-12-23 10:55:36,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 766. [2020-12-23 10:55:36,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 766 states. [2020-12-23 10:55:36,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1193 transitions. [2020-12-23 10:55:36,925 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1193 transitions. Word has length 75 [2020-12-23 10:55:36,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:55:36,926 INFO L481 AbstractCegarLoop]: Abstraction has 766 states and 1193 transitions. [2020-12-23 10:55:36,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:55:36,926 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1193 transitions. [2020-12-23 10:55:36,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-23 10:55:36,937 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:55:36,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:55:36,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 10:55:36,938 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:55:36,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:55:36,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1093755554, now seen corresponding path program 1 times [2020-12-23 10:55:36,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:55:36,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327320067] [2020-12-23 10:55:36,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:55:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:55:37,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:55:37,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327320067] [2020-12-23 10:55:37,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:55:37,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:55:37,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26492604] [2020-12-23 10:55:37,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:55:37,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:55:37,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:55:37,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:55:37,132 INFO L87 Difference]: Start difference. First operand 766 states and 1193 transitions. Second operand 3 states. [2020-12-23 10:55:37,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:55:37,242 INFO L93 Difference]: Finished difference Result 2082 states and 3283 transitions. [2020-12-23 10:55:37,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:55:37,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-12-23 10:55:37,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:55:37,252 INFO L225 Difference]: With dead ends: 2082 [2020-12-23 10:55:37,253 INFO L226 Difference]: Without dead ends: 1360 [2020-12-23 10:55:37,255 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 [2020-12-23 10:55:37,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2020-12-23 10:55:37,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1358. [2020-12-23 10:55:37,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1358 states. [2020-12-23 10:55:37,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 2125 transitions. [2020-12-23 10:55:37,339 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 2125 transitions. Word has length 76 [2020-12-23 10:55:37,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:55:37,340 INFO L481 AbstractCegarLoop]: Abstraction has 1358 states and 2125 transitions. [2020-12-23 10:55:37,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:55:37,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 2125 transitions. [2020-12-23 10:55:37,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-23 10:55:37,343 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:55:37,343 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:55:37,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 10:55:37,343 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:55:37,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:55:37,344 INFO L82 PathProgramCache]: Analyzing trace with hash 2108543356, now seen corresponding path program 1 times [2020-12-23 10:55:37,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:55:37,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943633951] [2020-12-23 10:55:37,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:55:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:55:37,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:55:37,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943633951] [2020-12-23 10:55:37,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:55:37,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:55:37,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828203270] [2020-12-23 10:55:37,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:55:37,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:55:37,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:55:37,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:55:37,485 INFO L87 Difference]: Start difference. First operand 1358 states and 2125 transitions. Second operand 3 states. [2020-12-23 10:55:37,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:55:37,647 INFO L93 Difference]: Finished difference Result 3730 states and 5871 transitions. [2020-12-23 10:55:37,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:55:37,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-12-23 10:55:37,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:55:37,664 INFO L225 Difference]: With dead ends: 3730 [2020-12-23 10:55:37,665 INFO L226 Difference]: Without dead ends: 2416 [2020-12-23 10:55:37,667 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 [2020-12-23 10:55:37,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2020-12-23 10:55:37,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2414. [2020-12-23 10:55:37,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2414 states. [2020-12-23 10:55:37,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 3773 transitions. [2020-12-23 10:55:37,807 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 3773 transitions. Word has length 77 [2020-12-23 10:55:37,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:55:37,810 INFO L481 AbstractCegarLoop]: Abstraction has 2414 states and 3773 transitions. [2020-12-23 10:55:37,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:55:37,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 3773 transitions. [2020-12-23 10:55:37,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-23 10:55:37,812 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:55:37,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:55:37,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 10:55:37,813 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:55:37,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:55:37,814 INFO L82 PathProgramCache]: Analyzing trace with hash -741254085, now seen corresponding path program 1 times [2020-12-23 10:55:37,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:55:37,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187963649] [2020-12-23 10:55:37,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:55:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:55:37,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:55:37,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187963649] [2020-12-23 10:55:37,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:55:37,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:55:37,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877533433] [2020-12-23 10:55:37,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:55:37,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:55:37,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:55:37,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:55:37,955 INFO L87 Difference]: Start difference. First operand 2414 states and 3773 transitions. Second operand 3 states. [2020-12-23 10:55:38,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:55:38,230 INFO L93 Difference]: Finished difference Result 6642 states and 10399 transitions. [2020-12-23 10:55:38,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:55:38,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-12-23 10:55:38,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:55:38,254 INFO L225 Difference]: With dead ends: 6642 [2020-12-23 10:55:38,254 INFO L226 Difference]: Without dead ends: 4272 [2020-12-23 10:55:38,262 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 [2020-12-23 10:55:38,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4272 states. [2020-12-23 10:55:38,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4272 to 4270. [2020-12-23 10:55:38,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4270 states. [2020-12-23 10:55:38,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4270 states to 4270 states and 6637 transitions. [2020-12-23 10:55:38,520 INFO L78 Accepts]: Start accepts. Automaton has 4270 states and 6637 transitions. Word has length 78 [2020-12-23 10:55:38,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:55:38,520 INFO L481 AbstractCegarLoop]: Abstraction has 4270 states and 6637 transitions. [2020-12-23 10:55:38,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:55:38,520 INFO L276 IsEmpty]: Start isEmpty. Operand 4270 states and 6637 transitions. [2020-12-23 10:55:38,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-23 10:55:38,524 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:55:38,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:55:38,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 10:55:38,525 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:55:38,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:55:38,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1744404253, now seen corresponding path program 1 times [2020-12-23 10:55:38,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:55:38,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076688179] [2020-12-23 10:55:38,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:55:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:55:38,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:55:38,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076688179] [2020-12-23 10:55:38,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:55:38,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 10:55:38,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015011279] [2020-12-23 10:55:38,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 10:55:38,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:55:38,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 10:55:38,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:55:38,852 INFO L87 Difference]: Start difference. First operand 4270 states and 6637 transitions. Second operand 8 states. [2020-12-23 10:55:40,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:55:40,752 INFO L93 Difference]: Finished difference Result 25786 states and 39859 transitions. [2020-12-23 10:55:40,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 10:55:40,753 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-12-23 10:55:40,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:55:40,871 INFO L225 Difference]: With dead ends: 25786 [2020-12-23 10:55:40,871 INFO L226 Difference]: Without dead ends: 21560 [2020-12-23 10:55:40,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:55:40,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21560 states. [2020-12-23 10:55:42,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21560 to 21550. [2020-12-23 10:55:42,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21550 states. [2020-12-23 10:55:42,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21550 states to 21550 states and 33197 transitions. [2020-12-23 10:55:42,613 INFO L78 Accepts]: Start accepts. Automaton has 21550 states and 33197 transitions. Word has length 79 [2020-12-23 10:55:42,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:55:42,614 INFO L481 AbstractCegarLoop]: Abstraction has 21550 states and 33197 transitions. [2020-12-23 10:55:42,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 10:55:42,614 INFO L276 IsEmpty]: Start isEmpty. Operand 21550 states and 33197 transitions. [2020-12-23 10:55:42,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-23 10:55:42,619 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:55:42,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:55:42,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 10:55:42,620 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:55:42,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:55:42,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1015653356, now seen corresponding path program 1 times [2020-12-23 10:55:42,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:55:42,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21560687] [2020-12-23 10:55:42,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:55:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:55:42,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:55:42,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21560687] [2020-12-23 10:55:42,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:55:42,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:55:42,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170093620] [2020-12-23 10:55:42,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:55:42,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:55:42,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:55:42,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:55:42,873 INFO L87 Difference]: Start difference. First operand 21550 states and 33197 transitions. Second operand 6 states. [2020-12-23 10:55:47,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:55:47,659 INFO L93 Difference]: Finished difference Result 81812 states and 125936 transitions. [2020-12-23 10:55:47,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:55:47,660 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 81 [2020-12-23 10:55:47,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:55:47,831 INFO L225 Difference]: With dead ends: 81812 [2020-12-23 10:55:47,832 INFO L226 Difference]: Without dead ends: 60306 [2020-12-23 10:55:47,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:55:47,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60306 states. [2020-12-23 10:55:51,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60306 to 60302. [2020-12-23 10:55:51,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60302 states. [2020-12-23 10:55:51,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60302 states to 60302 states and 92429 transitions. [2020-12-23 10:55:51,580 INFO L78 Accepts]: Start accepts. Automaton has 60302 states and 92429 transitions. Word has length 81 [2020-12-23 10:55:51,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:55:51,581 INFO L481 AbstractCegarLoop]: Abstraction has 60302 states and 92429 transitions. [2020-12-23 10:55:51,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:55:51,581 INFO L276 IsEmpty]: Start isEmpty. Operand 60302 states and 92429 transitions. [2020-12-23 10:55:51,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-23 10:55:51,582 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:55:51,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:55:51,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 10:55:51,582 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:55:51,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:55:51,583 INFO L82 PathProgramCache]: Analyzing trace with hash 858705489, now seen corresponding path program 1 times [2020-12-23 10:55:51,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:55:51,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737009073] [2020-12-23 10:55:51,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:55:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:55:51,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:55:51,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737009073] [2020-12-23 10:55:51,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:55:51,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 10:55:51,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183479983] [2020-12-23 10:55:51,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 10:55:51,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:55:51,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 10:55:51,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:55:51,734 INFO L87 Difference]: Start difference. First operand 60302 states and 92429 transitions. Second operand 8 states. [2020-12-23 10:56:05,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:56:05,367 INFO L93 Difference]: Finished difference Result 348828 states and 535444 transitions. [2020-12-23 10:56:05,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 10:56:05,368 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-12-23 10:56:05,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:56:06,272 INFO L225 Difference]: With dead ends: 348828 [2020-12-23 10:56:06,272 INFO L226 Difference]: Without dead ends: 288570 [2020-12-23 10:56:06,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-12-23 10:56:06,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288570 states. [2020-12-23 10:56:15,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288570 to 120558. [2020-12-23 10:56:15,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120558 states. [2020-12-23 10:56:16,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120558 states to 120558 states and 182637 transitions. [2020-12-23 10:56:16,280 INFO L78 Accepts]: Start accepts. Automaton has 120558 states and 182637 transitions. Word has length 81 [2020-12-23 10:56:16,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:56:16,281 INFO L481 AbstractCegarLoop]: Abstraction has 120558 states and 182637 transitions. [2020-12-23 10:56:16,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 10:56:16,281 INFO L276 IsEmpty]: Start isEmpty. Operand 120558 states and 182637 transitions. [2020-12-23 10:56:16,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-23 10:56:16,282 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:56:16,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:56:16,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 10:56:16,283 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:56:16,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:56:16,283 INFO L82 PathProgramCache]: Analyzing trace with hash 830610186, now seen corresponding path program 1 times [2020-12-23 10:56:16,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:56:16,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566003135] [2020-12-23 10:56:16,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:56:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:56:16,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:56:16,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566003135] [2020-12-23 10:56:16,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:56:16,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:56:16,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922300336] [2020-12-23 10:56:16,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:56:16,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:56:16,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:56:16,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:56:16,400 INFO L87 Difference]: Start difference. First operand 120558 states and 182637 transitions. Second operand 5 states. [2020-12-23 10:56:31,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:56:31,264 INFO L93 Difference]: Finished difference Result 245424 states and 369582 transitions. [2020-12-23 10:56:31,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:56:31,266 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 82 [2020-12-23 10:56:31,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:56:31,949 INFO L225 Difference]: With dead ends: 245424 [2020-12-23 10:56:31,949 INFO L226 Difference]: Without dead ends: 245422 [2020-12-23 10:56:32,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:56:32,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245422 states. [2020-12-23 10:56:42,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245422 to 124910. [2020-12-23 10:56:42,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124910 states. [2020-12-23 10:56:42,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124910 states to 124910 states and 186989 transitions. [2020-12-23 10:56:42,765 INFO L78 Accepts]: Start accepts. Automaton has 124910 states and 186989 transitions. Word has length 82 [2020-12-23 10:56:42,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:56:42,766 INFO L481 AbstractCegarLoop]: Abstraction has 124910 states and 186989 transitions. [2020-12-23 10:56:42,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:56:42,766 INFO L276 IsEmpty]: Start isEmpty. Operand 124910 states and 186989 transitions. [2020-12-23 10:56:42,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-23 10:56:42,767 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:56:42,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:56:42,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 10:56:42,768 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:56:42,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:56:42,769 INFO L82 PathProgramCache]: Analyzing trace with hash -10314879, now seen corresponding path program 1 times [2020-12-23 10:56:42,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:56:42,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776405119] [2020-12-23 10:56:42,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:56:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:56:42,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:56:42,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776405119] [2020-12-23 10:56:42,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:56:42,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:56:42,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079712896] [2020-12-23 10:56:42,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:56:42,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:56:42,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:56:42,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:56:42,854 INFO L87 Difference]: Start difference. First operand 124910 states and 186989 transitions. Second operand 3 states. [2020-12-23 10:56:52,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:56:52,989 INFO L93 Difference]: Finished difference Result 270676 states and 404737 transitions. [2020-12-23 10:56:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:56:52,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2020-12-23 10:56:52,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:56:53,228 INFO L225 Difference]: With dead ends: 270676 [2020-12-23 10:56:53,228 INFO L226 Difference]: Without dead ends: 145810 [2020-12-23 10:56:53,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:56:53,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145810 states. [2020-12-23 10:57:04,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145810 to 145808. [2020-12-23 10:57:04,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145808 states. [2020-12-23 10:57:04,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145808 states to 145808 states and 217439 transitions. [2020-12-23 10:57:04,610 INFO L78 Accepts]: Start accepts. Automaton has 145808 states and 217439 transitions. Word has length 83 [2020-12-23 10:57:04,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:57:04,611 INFO L481 AbstractCegarLoop]: Abstraction has 145808 states and 217439 transitions. [2020-12-23 10:57:04,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:57:04,611 INFO L276 IsEmpty]: Start isEmpty. Operand 145808 states and 217439 transitions. [2020-12-23 10:57:04,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-12-23 10:57:04,692 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:57:04,692 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:57:04,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 10:57:04,693 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:57:04,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:57:04,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1809041298, now seen corresponding path program 1 times [2020-12-23 10:57:04,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:57:04,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412240767] [2020-12-23 10:57:04,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:57:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:57:05,080 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:57:05,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412240767] [2020-12-23 10:57:05,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674376966] [2020-12-23 10:57:05,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 10:57:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:57:05,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-23 10:57:05,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 10:57:05,673 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 10:57:05,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 10:57:05,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 14 [2020-12-23 10:57:05,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327432389] [2020-12-23 10:57:05,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-23 10:57:05,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:57:05,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-23 10:57:05,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-12-23 10:57:05,677 INFO L87 Difference]: Start difference. First operand 145808 states and 217439 transitions. Second operand 14 states. [2020-12-23 10:59:15,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:59:15,594 INFO L93 Difference]: Finished difference Result 1560862 states and 2308359 transitions. [2020-12-23 10:59:15,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2020-12-23 10:59:15,594 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 112 [2020-12-23 10:59:15,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:59:19,530 INFO L225 Difference]: With dead ends: 1560862 [2020-12-23 10:59:19,530 INFO L226 Difference]: Without dead ends: 1415100 [2020-12-23 10:59:20,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6794 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=3063, Invalid=12437, Unknown=0, NotChecked=0, Total=15500 [2020-12-23 10:59:21,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415100 states.