/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.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 10:54:50,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 10:54:50,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 10:54:50,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 10:54:50,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 10:54:50,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 10:54:50,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 10:54:50,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 10:54:50,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 10:54:50,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 10:54:50,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 10:54:50,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 10:54:50,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 10:54:50,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 10:54:50,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 10:54:50,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 10:54:50,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 10:54:50,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 10:54:50,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 10:54:50,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 10:54:50,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 10:54:50,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 10:54:50,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 10:54:50,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 10:54:50,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 10:54:50,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 10:54:50,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 10:54:50,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 10:54:50,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 10:54:50,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 10:54:50,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 10:54:50,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 10:54:50,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 10:54:50,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 10:54:50,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 10:54:50,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 10:54:50,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 10:54:50,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 10:54:50,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 10:54:50,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 10:54:50,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 10:54:50,499 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 10:54:50,546 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 10:54:50,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 10:54:50,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 10:54:50,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 10:54:50,552 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 10:54:50,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 10:54:50,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 10:54:50,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 10:54:50,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 10:54:50,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 10:54:50,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 10:54:50,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 10:54:50,555 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 10:54:50,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 10:54:50,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 10:54:50,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 10:54:50,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 10:54:50,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:54:50,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 10:54:50,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 10:54:50,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 10:54:50,557 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 10:54:50,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 10:54:50,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 10:54:50,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 10:54:50,558 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 10:54:51,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 10:54:51,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 10:54:51,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 10:54:51,111 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 10:54:51,112 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 10:54:51,113 INFO L432 ainManager$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.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2020-12-23 10:54:51,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/207e4d7dc/d32d92ba454948499fbf18c084430c0a/FLAG7f564a818 [2020-12-23 10:54:51,870 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 10:54:51,871 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2020-12-23 10:54:51,886 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/207e4d7dc/d32d92ba454948499fbf18c084430c0a/FLAG7f564a818 [2020-12-23 10:54:52,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/207e4d7dc/d32d92ba454948499fbf18c084430c0a [2020-12-23 10:54:52,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 10:54:52,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 10:54:52,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 10:54:52,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 10:54:52,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 10:54:52,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:54:52" (1/1) ... [2020-12-23 10:54:52,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e5a4e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:52, skipping insertion in model container [2020-12-23 10:54:52,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:54:52" (1/1) ... [2020-12-23 10:54:52,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 10:54:52,270 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[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_59281~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_59446~0,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 10:54:52,510 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.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[5916,5929] 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[~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[~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_59548~0,GLOBAL] [2020-12-23 10:54:52,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:54:52,575 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[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_59281~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_59446~0,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 10:54:52,640 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.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[5916,5929] 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[~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[~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_59548~0,GLOBAL] [2020-12-23 10:54:52,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:54:52,708 INFO L208 MainTranslator]: Completed translation [2020-12-23 10:54:52,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:52 WrapperNode [2020-12-23 10:54:52,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 10:54:52,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 10:54:52,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 10:54:52,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 10:54:52,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:52" (1/1) ... [2020-12-23 10:54:52,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:52" (1/1) ... [2020-12-23 10:54:52,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 10:54:52,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 10:54:52,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 10:54:52,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 10:54:52,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:52" (1/1) ... [2020-12-23 10:54:52,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:52" (1/1) ... [2020-12-23 10:54:52,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:52" (1/1) ... [2020-12-23 10:54:52,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:52" (1/1) ... [2020-12-23 10:54:52,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:52" (1/1) ... [2020-12-23 10:54:52,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:52" (1/1) ... [2020-12-23 10:54:52,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:52" (1/1) ... [2020-12-23 10:54:52,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 10:54:52,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 10:54:52,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 10:54:52,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 10:54:52,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:52" (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 10:54:53,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 10:54:53,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 10:54:53,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 10:54:53,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 10:54:54,241 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 10:54:54,242 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 10:54:54,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:54:54 BoogieIcfgContainer [2020-12-23 10:54:54,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 10:54:54,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 10:54:54,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 10:54:54,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 10:54:54,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 10:54:52" (1/3) ... [2020-12-23 10:54:54,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33fa8a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:54:54, skipping insertion in model container [2020-12-23 10:54:54,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:52" (2/3) ... [2020-12-23 10:54:54,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33fa8a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:54:54, skipping insertion in model container [2020-12-23 10:54:54,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:54:54" (3/3) ... [2020-12-23 10:54:54,261 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2020-12-23 10:54:54,269 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 10:54:54,275 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 10:54:54,296 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 10:54:54,345 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 10:54:54,345 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 10:54:54,345 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 10:54:54,345 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 10:54:54,345 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 10:54:54,346 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 10:54:54,346 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 10:54:54,346 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 10:54:54,373 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2020-12-23 10:54:54,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-23 10:54:54,388 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:54:54,389 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] [2020-12-23 10:54:54,390 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:54:54,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:54:54,396 INFO L82 PathProgramCache]: Analyzing trace with hash -793823884, now seen corresponding path program 1 times [2020-12-23 10:54:54,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:54:54,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875269430] [2020-12-23 10:54:54,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:54:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:54:54,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:54:54,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875269430] [2020-12-23 10:54:54,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:54:54,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:54:54,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226089151] [2020-12-23 10:54:54,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:54:54,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:54:54,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:54:54,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:54:54,905 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 3 states. [2020-12-23 10:54:55,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:54:55,041 INFO L93 Difference]: Finished difference Result 322 states and 522 transitions. [2020-12-23 10:54:55,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:54:55,044 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-12-23 10:54:55,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:54:55,062 INFO L225 Difference]: With dead ends: 322 [2020-12-23 10:54:55,062 INFO L226 Difference]: Without dead ends: 215 [2020-12-23 10:54:55,066 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 10:54:55,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-12-23 10:54:55,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213. [2020-12-23 10:54:55,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-12-23 10:54:55,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 319 transitions. [2020-12-23 10:54:55,159 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 319 transitions. Word has length 60 [2020-12-23 10:54:55,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:54:55,162 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 319 transitions. [2020-12-23 10:54:55,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:54:55,162 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 319 transitions. [2020-12-23 10:54:55,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-23 10:54:55,167 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:54:55,168 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] [2020-12-23 10:54:55,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 10:54:55,169 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:54:55,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:54:55,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1200786689, now seen corresponding path program 1 times [2020-12-23 10:54:55,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:54:55,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801768004] [2020-12-23 10:54:55,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:54:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:54:55,422 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 10:54:55,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801768004] [2020-12-23 10:54:55,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:54:55,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:54:55,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204482120] [2020-12-23 10:54:55,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:54:55,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:54:55,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:54:55,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:54:55,427 INFO L87 Difference]: Start difference. First operand 213 states and 319 transitions. Second operand 3 states. [2020-12-23 10:54:55,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:54:55,556 INFO L93 Difference]: Finished difference Result 537 states and 835 transitions. [2020-12-23 10:54:55,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:54:55,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-12-23 10:54:55,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:54:55,567 INFO L225 Difference]: With dead ends: 537 [2020-12-23 10:54:55,568 INFO L226 Difference]: Without dead ends: 359 [2020-12-23 10:54:55,573 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 10:54:55,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-12-23 10:54:55,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 357. [2020-12-23 10:54:55,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2020-12-23 10:54:55,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 548 transitions. [2020-12-23 10:54:55,650 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 548 transitions. Word has length 61 [2020-12-23 10:54:55,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:54:55,651 INFO L481 AbstractCegarLoop]: Abstraction has 357 states and 548 transitions. [2020-12-23 10:54:55,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:54:55,652 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 548 transitions. [2020-12-23 10:54:55,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-23 10:54:55,654 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:54:55,654 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] [2020-12-23 10:54:55,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 10:54:55,655 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:54:55,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:54:55,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1872640227, now seen corresponding path program 1 times [2020-12-23 10:54:55,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:54:55,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932885988] [2020-12-23 10:54:55,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:54:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:54:55,830 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 10:54:55,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932885988] [2020-12-23 10:54:55,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:54:55,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:54:55,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849037453] [2020-12-23 10:54:55,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:54:55,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:54:55,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:54:55,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:54:55,838 INFO L87 Difference]: Start difference. First operand 357 states and 548 transitions. Second operand 3 states. [2020-12-23 10:54:55,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:54:55,918 INFO L93 Difference]: Finished difference Result 937 states and 1470 transitions. [2020-12-23 10:54:55,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:54:55,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-12-23 10:54:55,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:54:55,923 INFO L225 Difference]: With dead ends: 937 [2020-12-23 10:54:55,924 INFO L226 Difference]: Without dead ends: 615 [2020-12-23 10:54:55,925 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 10:54:55,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2020-12-23 10:54:55,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 613. [2020-12-23 10:54:55,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-12-23 10:54:55,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 952 transitions. [2020-12-23 10:54:55,977 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 952 transitions. Word has length 62 [2020-12-23 10:54:55,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:54:55,977 INFO L481 AbstractCegarLoop]: Abstraction has 613 states and 952 transitions. [2020-12-23 10:54:55,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:54:55,977 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 952 transitions. [2020-12-23 10:54:55,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-23 10:54:55,986 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:54:55,987 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] [2020-12-23 10:54:55,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 10:54:55,987 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:54:55,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:54:55,988 INFO L82 PathProgramCache]: Analyzing trace with hash -562045070, now seen corresponding path program 1 times [2020-12-23 10:54:55,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:54:55,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093812829] [2020-12-23 10:54:55,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:54:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:54:56,107 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 10:54:56,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093812829] [2020-12-23 10:54:56,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:54:56,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:54:56,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935373440] [2020-12-23 10:54:56,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:54:56,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:54:56,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:54:56,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:54:56,113 INFO L87 Difference]: Start difference. First operand 613 states and 952 transitions. Second operand 3 states. [2020-12-23 10:54:56,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:54:56,200 INFO L93 Difference]: Finished difference Result 1641 states and 2578 transitions. [2020-12-23 10:54:56,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:54:56,201 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-12-23 10:54:56,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:54:56,208 INFO L225 Difference]: With dead ends: 1641 [2020-12-23 10:54:56,209 INFO L226 Difference]: Without dead ends: 1063 [2020-12-23 10:54:56,211 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 10:54:56,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2020-12-23 10:54:56,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 1061. [2020-12-23 10:54:56,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1061 states. [2020-12-23 10:54:56,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1652 transitions. [2020-12-23 10:54:56,285 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1652 transitions. Word has length 63 [2020-12-23 10:54:56,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:54:56,285 INFO L481 AbstractCegarLoop]: Abstraction has 1061 states and 1652 transitions. [2020-12-23 10:54:56,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:54:56,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1652 transitions. [2020-12-23 10:54:56,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-23 10:54:56,288 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:54:56,289 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] [2020-12-23 10:54:56,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 10:54:56,289 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:54:56,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:54:56,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1925116710, now seen corresponding path program 1 times [2020-12-23 10:54:56,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:54:56,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52880477] [2020-12-23 10:54:56,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:54:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:54:56,446 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 10:54:56,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52880477] [2020-12-23 10:54:56,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:54:56,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:54:56,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226238810] [2020-12-23 10:54:56,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:54:56,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:54:56,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:54:56,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:54:56,451 INFO L87 Difference]: Start difference. First operand 1061 states and 1652 transitions. Second operand 3 states. [2020-12-23 10:54:56,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:54:56,580 INFO L93 Difference]: Finished difference Result 2857 states and 4470 transitions. [2020-12-23 10:54:56,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:54:56,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-12-23 10:54:56,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:54:56,593 INFO L225 Difference]: With dead ends: 2857 [2020-12-23 10:54:56,594 INFO L226 Difference]: Without dead ends: 1831 [2020-12-23 10:54:56,596 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 10:54:56,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2020-12-23 10:54:56,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1829. [2020-12-23 10:54:56,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1829 states. [2020-12-23 10:54:56,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2836 transitions. [2020-12-23 10:54:56,705 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2836 transitions. Word has length 64 [2020-12-23 10:54:56,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:54:56,705 INFO L481 AbstractCegarLoop]: Abstraction has 1829 states and 2836 transitions. [2020-12-23 10:54:56,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:54:56,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2836 transitions. [2020-12-23 10:54:56,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-23 10:54:56,708 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:54:56,708 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] [2020-12-23 10:54:56,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 10:54:56,708 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:54:56,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:54:56,709 INFO L82 PathProgramCache]: Analyzing trace with hash 210559993, now seen corresponding path program 1 times [2020-12-23 10:54:56,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:54:56,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33526072] [2020-12-23 10:54:56,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:54:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:54:56,981 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 10:54:56,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33526072] [2020-12-23 10:54:56,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:54:56,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 10:54:56,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596990204] [2020-12-23 10:54:56,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 10:54:56,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:54:56,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 10:54:56,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:54:56,986 INFO L87 Difference]: Start difference. First operand 1829 states and 2836 transitions. Second operand 7 states. [2020-12-23 10:54:57,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:54:57,758 INFO L93 Difference]: Finished difference Result 9439 states and 14601 transitions. [2020-12-23 10:54:57,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 10:54:57,759 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-12-23 10:54:57,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:54:57,801 INFO L225 Difference]: With dead ends: 9439 [2020-12-23 10:54:57,801 INFO L226 Difference]: Without dead ends: 7645 [2020-12-23 10:54:57,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:54:57,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7645 states. [2020-12-23 10:54:58,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7645 to 7637. [2020-12-23 10:54:58,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7637 states. [2020-12-23 10:54:58,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7637 states to 7637 states and 11764 transitions. [2020-12-23 10:54:58,475 INFO L78 Accepts]: Start accepts. Automaton has 7637 states and 11764 transitions. Word has length 65 [2020-12-23 10:54:58,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:54:58,477 INFO L481 AbstractCegarLoop]: Abstraction has 7637 states and 11764 transitions. [2020-12-23 10:54:58,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 10:54:58,477 INFO L276 IsEmpty]: Start isEmpty. Operand 7637 states and 11764 transitions. [2020-12-23 10:54:58,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-23 10:54:58,480 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:54:58,480 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] [2020-12-23 10:54:58,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 10:54:58,481 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:54:58,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:54:58,483 INFO L82 PathProgramCache]: Analyzing trace with hash 701566096, now seen corresponding path program 1 times [2020-12-23 10:54:58,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:54:58,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096355888] [2020-12-23 10:54:58,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:54:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:54:58,643 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 10:54:58,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096355888] [2020-12-23 10:54:58,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:54:58,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:54:58,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410927542] [2020-12-23 10:54:58,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:54:58,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:54:58,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:54:58,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:54:58,646 INFO L87 Difference]: Start difference. First operand 7637 states and 11764 transitions. Second operand 6 states. [2020-12-23 10:55:00,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:55:00,510 INFO L93 Difference]: Finished difference Result 28651 states and 44119 transitions. [2020-12-23 10:55:00,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:55:00,511 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-12-23 10:55:00,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:55:00,632 INFO L225 Difference]: With dead ends: 28651 [2020-12-23 10:55:00,633 INFO L226 Difference]: Without dead ends: 21049 [2020-12-23 10:55:00,655 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 10:55:00,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21049 states. [2020-12-23 10:55:02,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21049 to 21045. [2020-12-23 10:55:02,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21045 states. [2020-12-23 10:55:02,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21045 states to 21045 states and 32244 transitions. [2020-12-23 10:55:02,506 INFO L78 Accepts]: Start accepts. Automaton has 21045 states and 32244 transitions. Word has length 67 [2020-12-23 10:55:02,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:55:02,506 INFO L481 AbstractCegarLoop]: Abstraction has 21045 states and 32244 transitions. [2020-12-23 10:55:02,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:55:02,507 INFO L276 IsEmpty]: Start isEmpty. Operand 21045 states and 32244 transitions. [2020-12-23 10:55:02,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-23 10:55:02,510 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:55:02,511 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] [2020-12-23 10:55:02,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 10:55:02,511 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:55:02,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:55:02,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1975896309, now seen corresponding path program 1 times [2020-12-23 10:55:02,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:55:02,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272227011] [2020-12-23 10:55:02,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:55:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:55:02,657 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 10:55:02,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272227011] [2020-12-23 10:55:02,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:55:02,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 10:55:02,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420116776] [2020-12-23 10:55:02,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 10:55:02,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:55:02,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 10:55:02,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:55:02,660 INFO L87 Difference]: Start difference. First operand 21045 states and 32244 transitions. Second operand 7 states. [2020-12-23 10:55:07,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:55:07,143 INFO L93 Difference]: Finished difference Result 110433 states and 169402 transitions. [2020-12-23 10:55:07,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 10:55:07,144 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2020-12-23 10:55:07,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:55:07,405 INFO L225 Difference]: With dead ends: 110433 [2020-12-23 10:55:07,405 INFO L226 Difference]: Without dead ends: 89423 [2020-12-23 10:55:07,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-23 10:55:07,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89423 states. [2020-12-23 10:55:10,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89423 to 42053. [2020-12-23 10:55:10,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42053 states. [2020-12-23 10:55:10,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42053 states to 42053 states and 63556 transitions. [2020-12-23 10:55:10,868 INFO L78 Accepts]: Start accepts. Automaton has 42053 states and 63556 transitions. Word has length 67 [2020-12-23 10:55:10,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:55:10,869 INFO L481 AbstractCegarLoop]: Abstraction has 42053 states and 63556 transitions. [2020-12-23 10:55:10,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 10:55:10,869 INFO L276 IsEmpty]: Start isEmpty. Operand 42053 states and 63556 transitions. [2020-12-23 10:55:10,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-23 10:55:10,870 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:55:10,870 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] [2020-12-23 10:55:10,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 10:55:10,870 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:55:10,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:55:10,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1142699675, now seen corresponding path program 1 times [2020-12-23 10:55:10,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:55:10,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243114552] [2020-12-23 10:55:10,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:55:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:55:10,960 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 10:55:10,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243114552] [2020-12-23 10:55:10,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:55:10,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:55:10,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877311463] [2020-12-23 10:55:10,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:55:10,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:55:10,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:55:10,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:55:10,963 INFO L87 Difference]: Start difference. First operand 42053 states and 63556 transitions. Second operand 5 states. [2020-12-23 10:55:15,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:55:15,991 INFO L93 Difference]: Finished difference Result 85863 states and 128869 transitions. [2020-12-23 10:55:15,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:55:15,991 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2020-12-23 10:55:15,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:55:16,198 INFO L225 Difference]: With dead ends: 85863 [2020-12-23 10:55:16,199 INFO L226 Difference]: Without dead ends: 85861 [2020-12-23 10:55:16,225 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 10:55:16,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85861 states. [2020-12-23 10:55:19,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85861 to 43845. [2020-12-23 10:55:19,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43845 states. [2020-12-23 10:55:20,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43845 states to 43845 states and 65348 transitions. [2020-12-23 10:55:20,078 INFO L78 Accepts]: Start accepts. Automaton has 43845 states and 65348 transitions. Word has length 68 [2020-12-23 10:55:20,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:55:20,078 INFO L481 AbstractCegarLoop]: Abstraction has 43845 states and 65348 transitions. [2020-12-23 10:55:20,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:55:20,078 INFO L276 IsEmpty]: Start isEmpty. Operand 43845 states and 65348 transitions. [2020-12-23 10:55:20,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-23 10:55:20,079 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:55:20,080 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] [2020-12-23 10:55:20,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 10:55:20,080 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:55:20,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:55:20,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1053378469, now seen corresponding path program 1 times [2020-12-23 10:55:20,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:55:20,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507846381] [2020-12-23 10:55:20,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:55:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:55:20,170 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 10:55:20,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507846381] [2020-12-23 10:55:20,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:55:20,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:55:20,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361900063] [2020-12-23 10:55:20,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:55:20,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:55:20,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:55:20,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:55:20,177 INFO L87 Difference]: Start difference. First operand 43845 states and 65348 transitions. Second operand 3 states. [2020-12-23 10:55:23,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:55:23,505 INFO L93 Difference]: Finished difference Result 94971 states and 141368 transitions. [2020-12-23 10:55:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:55:23,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-12-23 10:55:23,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:55:23,591 INFO L225 Difference]: With dead ends: 94971 [2020-12-23 10:55:23,592 INFO L226 Difference]: Without dead ends: 51161 [2020-12-23 10:55:23,651 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 10:55:23,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51161 states. [2020-12-23 10:55:27,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51161 to 51159. [2020-12-23 10:55:27,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51159 states. [2020-12-23 10:55:27,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51159 states to 51159 states and 75910 transitions. [2020-12-23 10:55:27,302 INFO L78 Accepts]: Start accepts. Automaton has 51159 states and 75910 transitions. Word has length 69 [2020-12-23 10:55:27,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:55:27,302 INFO L481 AbstractCegarLoop]: Abstraction has 51159 states and 75910 transitions. [2020-12-23 10:55:27,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:55:27,303 INFO L276 IsEmpty]: Start isEmpty. Operand 51159 states and 75910 transitions. [2020-12-23 10:55:27,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-23 10:55:27,323 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:55:27,324 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:55:27,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 10:55:27,324 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:55:27,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:55:27,325 INFO L82 PathProgramCache]: Analyzing trace with hash -212554062, now seen corresponding path program 1 times [2020-12-23 10:55:27,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:55:27,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25454710] [2020-12-23 10:55:27,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:55:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:55:27,605 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:55:27,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25454710] [2020-12-23 10:55:27,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026392091] [2020-12-23 10:55:27,606 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 10:55:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:55:27,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-23 10:55:27,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 10:55:28,133 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 10:55:28,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 10:55:28,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 13 [2020-12-23 10:55:28,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443873915] [2020-12-23 10:55:28,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-23 10:55:28,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:55:28,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-23 10:55:28,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-12-23 10:55:28,141 INFO L87 Difference]: Start difference. First operand 51159 states and 75910 transitions. Second operand 13 states. [2020-12-23 10:56:05,227 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 30 [2020-12-23 10:56:15,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:56:15,528 INFO L93 Difference]: Finished difference Result 536390 states and 787771 transitions. [2020-12-23 10:56:15,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2020-12-23 10:56:15,528 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 94 [2020-12-23 10:56:15,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:56:16,814 INFO L225 Difference]: With dead ends: 536390 [2020-12-23 10:56:16,814 INFO L226 Difference]: Without dead ends: 485268 [2020-12-23 10:56:17,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6405 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=2514, Invalid=12492, Unknown=0, NotChecked=0, Total=15006 [2020-12-23 10:56:17,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485268 states. [2020-12-23 10:56:34,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485268 to 150255. [2020-12-23 10:56:34,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150255 states. [2020-12-23 10:56:34,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150255 states to 150255 states and 220018 transitions. [2020-12-23 10:56:34,600 INFO L78 Accepts]: Start accepts. Automaton has 150255 states and 220018 transitions. Word has length 94 [2020-12-23 10:56:34,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:56:34,600 INFO L481 AbstractCegarLoop]: Abstraction has 150255 states and 220018 transitions. [2020-12-23 10:56:34,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-23 10:56:34,600 INFO L276 IsEmpty]: Start isEmpty. Operand 150255 states and 220018 transitions. [2020-12-23 10:56:34,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-23 10:56:34,925 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:56:34,925 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:56:35,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-23 10:56:35,141 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:56:35,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:56:35,141 INFO L82 PathProgramCache]: Analyzing trace with hash 625845135, now seen corresponding path program 1 times [2020-12-23 10:56:35,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:56:35,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574872272] [2020-12-23 10:56:35,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:56:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:56:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:56:35,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574872272] [2020-12-23 10:56:35,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:56:35,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:56:35,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766822260] [2020-12-23 10:56:35,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:56:35,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:56:35,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:56:35,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:56:35,215 INFO L87 Difference]: Start difference. First operand 150255 states and 220018 transitions. Second operand 3 states. [2020-12-23 10:56:57,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:56:57,074 INFO L93 Difference]: Finished difference Result 384017 states and 561214 transitions. [2020-12-23 10:56:57,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:56:57,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2020-12-23 10:56:57,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:56:57,887 INFO L225 Difference]: With dead ends: 384017 [2020-12-23 10:56:57,887 INFO L226 Difference]: Without dead ends: 249863 [2020-12-23 10:56:58,071 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 10:56:58,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249863 states.