/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 10:56:28,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 10:56:28,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 10:56:28,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 10:56:28,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 10:56:28,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 10:56:28,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 10:56:28,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 10:56:28,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 10:56:28,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 10:56:28,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 10:56:28,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 10:56:28,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 10:56:28,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 10:56:28,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 10:56:28,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 10:56:28,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 10:56:28,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 10:56:28,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 10:56:28,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 10:56:28,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 10:56:28,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 10:56:28,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 10:56:28,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 10:56:28,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 10:56:28,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 10:56:28,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 10:56:28,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 10:56:28,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 10:56:28,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 10:56:28,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 10:56:28,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 10:56:28,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 10:56:28,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 10:56:28,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 10:56:28,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 10:56:28,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 10:56:28,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 10:56:28,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 10:56:28,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 10:56:28,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 10:56:28,273 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 10:56:28,322 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 10:56:28,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 10:56:28,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 10:56:28,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 10:56:28,328 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 10:56:28,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 10:56:28,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 10:56:28,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 10:56:28,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 10:56:28,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 10:56:28,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 10:56:28,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 10:56:28,330 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 10:56:28,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 10:56:28,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 10:56:28,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 10:56:28,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 10:56:28,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:56:28,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 10:56:28,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 10:56:28,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 10:56:28,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 10:56:28,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 10:56:28,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 10:56:28,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 10:56:28,333 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 10:56:28,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 10:56:28,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 10:56:28,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 10:56:28,730 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 10:56:28,731 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 10:56:28,732 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2020-12-23 10:56:28,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c04137c36/b5ab7b78a9fa40bb8f2f637cbd6c868a/FLAGa2cfba15a [2020-12-23 10:56:29,521 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 10:56:29,522 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2020-12-23 10:56:29,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c04137c36/b5ab7b78a9fa40bb8f2f637cbd6c868a/FLAGa2cfba15a [2020-12-23 10:56:29,819 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c04137c36/b5ab7b78a9fa40bb8f2f637cbd6c868a [2020-12-23 10:56:29,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 10:56:29,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 10:56:29,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 10:56:29,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 10:56:29,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 10:56:29,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:56:29" (1/1) ... [2020-12-23 10:56:29,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b11aa13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:29, skipping insertion in model container [2020-12-23 10:56:29,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:56:29" (1/1) ... [2020-12-23 10:56:29,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 10:56:29,898 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_182618~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_182813~0,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 10:56:30,163 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6997,7010] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] [2020-12-23 10:56:30,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:56:30,269 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_182618~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_182813~0,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 10:56:30,356 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6997,7010] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] [2020-12-23 10:56:30,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:56:30,478 INFO L208 MainTranslator]: Completed translation [2020-12-23 10:56:30,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:30 WrapperNode [2020-12-23 10:56:30,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 10:56:30,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 10:56:30,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 10:56:30,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 10:56:30,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:30" (1/1) ... [2020-12-23 10:56:30,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:30" (1/1) ... [2020-12-23 10:56:30,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 10:56:30,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 10:56:30,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 10:56:30,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 10:56:30,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:30" (1/1) ... [2020-12-23 10:56:30,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:30" (1/1) ... [2020-12-23 10:56:30,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:30" (1/1) ... [2020-12-23 10:56:30,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:30" (1/1) ... [2020-12-23 10:56:30,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:30" (1/1) ... [2020-12-23 10:56:30,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:30" (1/1) ... [2020-12-23 10:56:30,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:30" (1/1) ... [2020-12-23 10:56:30,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 10:56:30,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 10:56:30,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 10:56:30,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 10:56:30,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:30" (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 10:56:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 10:56:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 10:56:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 10:56:30,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 10:56:31,708 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 10:56:31,708 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 10:56:31,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:56:31 BoogieIcfgContainer [2020-12-23 10:56:31,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 10:56:31,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 10:56:31,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 10:56:31,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 10:56:31,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 10:56:29" (1/3) ... [2020-12-23 10:56:31,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b89d574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:56:31, skipping insertion in model container [2020-12-23 10:56:31,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:30" (2/3) ... [2020-12-23 10:56:31,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b89d574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:56:31, skipping insertion in model container [2020-12-23 10:56:31,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:56:31" (3/3) ... [2020-12-23 10:56:31,721 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2020-12-23 10:56:31,728 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 10:56:31,734 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 10:56:31,757 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 10:56:31,791 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 10:56:31,791 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 10:56:31,792 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 10:56:31,792 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 10:56:31,792 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 10:56:31,792 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 10:56:31,792 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 10:56:31,793 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 10:56:31,815 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2020-12-23 10:56:31,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-23 10:56:31,827 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:56:31,828 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:56:31,829 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:56:31,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:56:31,836 INFO L82 PathProgramCache]: Analyzing trace with hash 2011282842, now seen corresponding path program 1 times [2020-12-23 10:56:31,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:56:31,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291133455] [2020-12-23 10:56:31,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:56:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:56:32,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:56:32,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291133455] [2020-12-23 10:56:32,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:56:32,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:56:32,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333856380] [2020-12-23 10:56:32,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:56:32,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:56:32,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:56:32,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:56:32,364 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 3 states. [2020-12-23 10:56:32,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:56:32,457 INFO L93 Difference]: Finished difference Result 391 states and 633 transitions. [2020-12-23 10:56:32,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:56:32,460 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-12-23 10:56:32,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:56:32,476 INFO L225 Difference]: With dead ends: 391 [2020-12-23 10:56:32,476 INFO L226 Difference]: Without dead ends: 264 [2020-12-23 10:56:32,480 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 10:56:32,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-12-23 10:56:32,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2020-12-23 10:56:32,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-12-23 10:56:32,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 392 transitions. [2020-12-23 10:56:32,557 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 392 transitions. Word has length 74 [2020-12-23 10:56:32,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:56:32,558 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 392 transitions. [2020-12-23 10:56:32,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:56:32,559 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 392 transitions. [2020-12-23 10:56:32,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-23 10:56:32,562 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:56:32,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:56:32,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 10:56:32,563 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:56:32,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:56:32,564 INFO L82 PathProgramCache]: Analyzing trace with hash -141824057, now seen corresponding path program 1 times [2020-12-23 10:56:32,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:56:32,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775248468] [2020-12-23 10:56:32,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:56:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:56:32,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:56:32,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775248468] [2020-12-23 10:56:32,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:56:32,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:56:32,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984136206] [2020-12-23 10:56:32,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:56:32,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:56:32,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:56:32,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:56:32,784 INFO L87 Difference]: Start difference. First operand 262 states and 392 transitions. Second operand 3 states. [2020-12-23 10:56:32,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:56:32,895 INFO L93 Difference]: Finished difference Result 666 states and 1036 transitions. [2020-12-23 10:56:32,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:56:32,896 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-12-23 10:56:32,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:56:32,901 INFO L225 Difference]: With dead ends: 666 [2020-12-23 10:56:32,902 INFO L226 Difference]: Without dead ends: 448 [2020-12-23 10:56:32,905 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 10:56:32,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-12-23 10:56:32,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 446. [2020-12-23 10:56:32,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-12-23 10:56:32,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 685 transitions. [2020-12-23 10:56:32,957 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 685 transitions. Word has length 75 [2020-12-23 10:56:32,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:56:32,958 INFO L481 AbstractCegarLoop]: Abstraction has 446 states and 685 transitions. [2020-12-23 10:56:32,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:56:32,958 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 685 transitions. [2020-12-23 10:56:32,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-23 10:56:32,961 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:56:32,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:56:32,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 10:56:32,962 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:56:32,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:56:32,963 INFO L82 PathProgramCache]: Analyzing trace with hash 890430339, now seen corresponding path program 1 times [2020-12-23 10:56:32,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:56:32,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706553366] [2020-12-23 10:56:32,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:56:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:56:33,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:56:33,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706553366] [2020-12-23 10:56:33,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:56:33,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:56:33,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542665671] [2020-12-23 10:56:33,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:56:33,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:56:33,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:56:33,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:56:33,094 INFO L87 Difference]: Start difference. First operand 446 states and 685 transitions. Second operand 3 states. [2020-12-23 10:56:33,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:56:33,177 INFO L93 Difference]: Finished difference Result 1186 states and 1863 transitions. [2020-12-23 10:56:33,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:56:33,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-12-23 10:56:33,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:56:33,185 INFO L225 Difference]: With dead ends: 1186 [2020-12-23 10:56:33,185 INFO L226 Difference]: Without dead ends: 784 [2020-12-23 10:56:33,190 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 10:56:33,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-12-23 10:56:33,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 782. [2020-12-23 10:56:33,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2020-12-23 10:56:33,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1217 transitions. [2020-12-23 10:56:33,269 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1217 transitions. Word has length 76 [2020-12-23 10:56:33,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:56:33,269 INFO L481 AbstractCegarLoop]: Abstraction has 782 states and 1217 transitions. [2020-12-23 10:56:33,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:56:33,270 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1217 transitions. [2020-12-23 10:56:33,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-23 10:56:33,273 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:56:33,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:56:33,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 10:56:33,274 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:56:33,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:56:33,275 INFO L82 PathProgramCache]: Analyzing trace with hash -806203398, now seen corresponding path program 1 times [2020-12-23 10:56:33,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:56:33,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879211178] [2020-12-23 10:56:33,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:56:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:56:33,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:56:33,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879211178] [2020-12-23 10:56:33,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:56:33,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:56:33,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356701039] [2020-12-23 10:56:33,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:56:33,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:56:33,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:56:33,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:56:33,403 INFO L87 Difference]: Start difference. First operand 782 states and 1217 transitions. Second operand 3 states. [2020-12-23 10:56:33,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:56:33,490 INFO L93 Difference]: Finished difference Result 2130 states and 3355 transitions. [2020-12-23 10:56:33,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:56:33,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-12-23 10:56:33,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:56:33,499 INFO L225 Difference]: With dead ends: 2130 [2020-12-23 10:56:33,499 INFO L226 Difference]: Without dead ends: 1392 [2020-12-23 10:56:33,501 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 10:56:33,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2020-12-23 10:56:33,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1390. [2020-12-23 10:56:33,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1390 states. [2020-12-23 10:56:33,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 2173 transitions. [2020-12-23 10:56:33,593 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 2173 transitions. Word has length 77 [2020-12-23 10:56:33,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:56:33,595 INFO L481 AbstractCegarLoop]: Abstraction has 1390 states and 2173 transitions. [2020-12-23 10:56:33,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:56:33,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 2173 transitions. [2020-12-23 10:56:33,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-23 10:56:33,606 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:56:33,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:56:33,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 10:56:33,607 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:56:33,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:56:33,611 INFO L82 PathProgramCache]: Analyzing trace with hash -904090240, now seen corresponding path program 1 times [2020-12-23 10:56:33,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:56:33,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829159090] [2020-12-23 10:56:33,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:56:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:56:33,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:56:33,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829159090] [2020-12-23 10:56:33,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:56:33,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:56:33,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49817776] [2020-12-23 10:56:33,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:56:33,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:56:33,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:56:33,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:56:33,754 INFO L87 Difference]: Start difference. First operand 1390 states and 2173 transitions. Second operand 3 states. [2020-12-23 10:56:33,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:56:33,906 INFO L93 Difference]: Finished difference Result 3826 states and 6015 transitions. [2020-12-23 10:56:33,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:56:33,907 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-12-23 10:56:33,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:56:33,922 INFO L225 Difference]: With dead ends: 3826 [2020-12-23 10:56:33,923 INFO L226 Difference]: Without dead ends: 2480 [2020-12-23 10:56:33,926 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 10:56:33,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2020-12-23 10:56:34,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 2478. [2020-12-23 10:56:34,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2478 states. [2020-12-23 10:56:34,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2478 states to 2478 states and 3869 transitions. [2020-12-23 10:56:34,108 INFO L78 Accepts]: Start accepts. Automaton has 2478 states and 3869 transitions. Word has length 78 [2020-12-23 10:56:34,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:56:34,110 INFO L481 AbstractCegarLoop]: Abstraction has 2478 states and 3869 transitions. [2020-12-23 10:56:34,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:56:34,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2478 states and 3869 transitions. [2020-12-23 10:56:34,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-23 10:56:34,112 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:56:34,113 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:56:34,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 10:56:34,113 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:56:34,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:56:34,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1797609537, now seen corresponding path program 1 times [2020-12-23 10:56:34,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:56:34,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627949975] [2020-12-23 10:56:34,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:56:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:56:34,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:56:34,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627949975] [2020-12-23 10:56:34,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:56:34,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 10:56:34,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621413864] [2020-12-23 10:56:34,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 10:56:34,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:56:34,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 10:56:34,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:56:34,495 INFO L87 Difference]: Start difference. First operand 2478 states and 3869 transitions. Second operand 8 states. [2020-12-23 10:56:35,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:56:35,929 INFO L93 Difference]: Finished difference Result 15082 states and 23523 transitions. [2020-12-23 10:56:35,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 10:56:35,929 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-12-23 10:56:35,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:56:36,001 INFO L225 Difference]: With dead ends: 15082 [2020-12-23 10:56:36,001 INFO L226 Difference]: Without dead ends: 12648 [2020-12-23 10:56:36,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:56:36,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12648 states. [2020-12-23 10:56:36,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12648 to 12638. [2020-12-23 10:56:36,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12638 states. [2020-12-23 10:56:37,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12638 states to 12638 states and 19661 transitions. [2020-12-23 10:56:37,034 INFO L78 Accepts]: Start accepts. Automaton has 12638 states and 19661 transitions. Word has length 79 [2020-12-23 10:56:37,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:56:37,034 INFO L481 AbstractCegarLoop]: Abstraction has 12638 states and 19661 transitions. [2020-12-23 10:56:37,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 10:56:37,034 INFO L276 IsEmpty]: Start isEmpty. Operand 12638 states and 19661 transitions. [2020-12-23 10:56:37,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-23 10:56:37,036 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:56:37,036 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:56:37,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 10:56:37,037 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:56:37,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:56:37,038 INFO L82 PathProgramCache]: Analyzing trace with hash -252245181, now seen corresponding path program 1 times [2020-12-23 10:56:37,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:56:37,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653887517] [2020-12-23 10:56:37,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:56:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:56:37,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:56:37,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653887517] [2020-12-23 10:56:37,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:56:37,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:56:37,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730645523] [2020-12-23 10:56:37,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:56:37,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:56:37,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:56:37,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:56:37,105 INFO L87 Difference]: Start difference. First operand 12638 states and 19661 transitions. Second operand 3 states. [2020-12-23 10:56:38,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:56:38,503 INFO L93 Difference]: Finished difference Result 34530 states and 53583 transitions. [2020-12-23 10:56:38,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:56:38,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2020-12-23 10:56:38,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:56:38,600 INFO L225 Difference]: With dead ends: 34530 [2020-12-23 10:56:38,601 INFO L226 Difference]: Without dead ends: 21936 [2020-12-23 10:56:38,622 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 10:56:38,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21936 states. [2020-12-23 10:56:40,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21936 to 21934. [2020-12-23 10:56:40,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21934 states. [2020-12-23 10:56:40,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21934 states to 21934 states and 33773 transitions. [2020-12-23 10:56:40,288 INFO L78 Accepts]: Start accepts. Automaton has 21934 states and 33773 transitions. Word has length 80 [2020-12-23 10:56:40,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:56:40,288 INFO L481 AbstractCegarLoop]: Abstraction has 21934 states and 33773 transitions. [2020-12-23 10:56:40,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:56:40,288 INFO L276 IsEmpty]: Start isEmpty. Operand 21934 states and 33773 transitions. [2020-12-23 10:56:40,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-23 10:56:40,290 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:56:40,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:56:40,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 10:56:40,291 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:56:40,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:56:40,292 INFO L82 PathProgramCache]: Analyzing trace with hash -41800598, now seen corresponding path program 1 times [2020-12-23 10:56:40,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:56:40,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963059275] [2020-12-23 10:56:40,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:56:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:56:40,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:56:40,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963059275] [2020-12-23 10:56:40,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:56:40,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:56:40,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878515328] [2020-12-23 10:56:40,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:56:40,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:56:40,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:56:40,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:56:40,406 INFO L87 Difference]: Start difference. First operand 21934 states and 33773 transitions. Second operand 6 states. [2020-12-23 10:56:43,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:56:43,754 INFO L93 Difference]: Finished difference Result 83284 states and 128144 transitions. [2020-12-23 10:56:43,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:56:43,755 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 81 [2020-12-23 10:56:43,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:56:43,935 INFO L225 Difference]: With dead ends: 83284 [2020-12-23 10:56:43,935 INFO L226 Difference]: Without dead ends: 61394 [2020-12-23 10:56:43,983 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 10:56:44,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61394 states. [2020-12-23 10:56:47,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61394 to 61390. [2020-12-23 10:56:47,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61390 states. [2020-12-23 10:56:47,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61390 states to 61390 states and 94061 transitions. [2020-12-23 10:56:47,755 INFO L78 Accepts]: Start accepts. Automaton has 61390 states and 94061 transitions. Word has length 81 [2020-12-23 10:56:47,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:56:47,755 INFO L481 AbstractCegarLoop]: Abstraction has 61390 states and 94061 transitions. [2020-12-23 10:56:47,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:56:47,755 INFO L276 IsEmpty]: Start isEmpty. Operand 61390 states and 94061 transitions. [2020-12-23 10:56:47,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-23 10:56:47,757 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:56:47,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:56:47,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 10:56:47,757 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:56:47,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:56:47,758 INFO L82 PathProgramCache]: Analyzing trace with hash -198748465, now seen corresponding path program 1 times [2020-12-23 10:56:47,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:56:47,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039953664] [2020-12-23 10:56:47,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:56:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:56:48,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:56:48,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039953664] [2020-12-23 10:56:48,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:56:48,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 10:56:48,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988965699] [2020-12-23 10:56:48,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 10:56:48,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:56:48,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 10:56:48,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:56:48,109 INFO L87 Difference]: Start difference. First operand 61390 states and 94061 transitions. Second operand 8 states. [2020-12-23 10:57:01,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:57:01,588 INFO L93 Difference]: Finished difference Result 354972 states and 544660 transitions. [2020-12-23 10:57:01,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 10:57:01,589 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-12-23 10:57:01,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:57:02,532 INFO L225 Difference]: With dead ends: 354972 [2020-12-23 10:57:02,532 INFO L226 Difference]: Without dead ends: 293626 [2020-12-23 10:57:02,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-12-23 10:57:03,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293626 states. [2020-12-23 10:57:12,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293626 to 122734. [2020-12-23 10:57:12,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122734 states. [2020-12-23 10:57:12,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122734 states to 122734 states and 185901 transitions. [2020-12-23 10:57:12,774 INFO L78 Accepts]: Start accepts. Automaton has 122734 states and 185901 transitions. Word has length 81 [2020-12-23 10:57:12,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:57:12,774 INFO L481 AbstractCegarLoop]: Abstraction has 122734 states and 185901 transitions. [2020-12-23 10:57:12,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 10:57:12,775 INFO L276 IsEmpty]: Start isEmpty. Operand 122734 states and 185901 transitions. [2020-12-23 10:57:12,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-23 10:57:12,776 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:57:12,776 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:57:12,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 10:57:12,776 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:57:12,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:57:12,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1885691313, now seen corresponding path program 1 times [2020-12-23 10:57:12,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:57:12,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141123462] [2020-12-23 10:57:12,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:57:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:57:13,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:57:13,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141123462] [2020-12-23 10:57:13,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:57:13,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:57:13,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602432993] [2020-12-23 10:57:13,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:57:13,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:57:13,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:57:13,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:57:13,149 INFO L87 Difference]: Start difference. First operand 122734 states and 185901 transitions. Second operand 5 states. [2020-12-23 10:57:27,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:57:27,692 INFO L93 Difference]: Finished difference Result 249776 states and 376110 transitions. [2020-12-23 10:57:27,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:57:27,693 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 82 [2020-12-23 10:57:27,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:57:28,486 INFO L225 Difference]: With dead ends: 249776 [2020-12-23 10:57:28,487 INFO L226 Difference]: Without dead ends: 249774 [2020-12-23 10:57:28,545 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 10:57:28,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249774 states. [2020-12-23 10:57:38,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249774 to 127086. [2020-12-23 10:57:38,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127086 states. [2020-12-23 10:57:39,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127086 states to 127086 states and 190253 transitions. [2020-12-23 10:57:39,345 INFO L78 Accepts]: Start accepts. Automaton has 127086 states and 190253 transitions. Word has length 82 [2020-12-23 10:57:39,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:57:39,346 INFO L481 AbstractCegarLoop]: Abstraction has 127086 states and 190253 transitions. [2020-12-23 10:57:39,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:57:39,347 INFO L276 IsEmpty]: Start isEmpty. Operand 127086 states and 190253 transitions. [2020-12-23 10:57:39,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-23 10:57:39,356 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:57:39,356 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:57:39,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 10:57:39,357 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:57:39,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:57:39,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1683684575, now seen corresponding path program 1 times [2020-12-23 10:57:39,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:57:39,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956183527] [2020-12-23 10:57:39,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:57:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:57:39,460 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 10:57:39,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956183527] [2020-12-23 10:57:39,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:57:39,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:57:39,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055183123] [2020-12-23 10:57:39,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:57:39,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:57:39,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:57:39,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:57:39,464 INFO L87 Difference]: Start difference. First operand 127086 states and 190253 transitions. Second operand 3 states. [2020-12-23 10:57:49,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:57:49,832 INFO L93 Difference]: Finished difference Result 275732 states and 412321 transitions. [2020-12-23 10:57:49,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:57:49,833 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2020-12-23 10:57:49,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:57:50,271 INFO L225 Difference]: With dead ends: 275732 [2020-12-23 10:57:50,271 INFO L226 Difference]: Without dead ends: 148690 [2020-12-23 10:57:50,364 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 10:57:50,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148690 states. [2020-12-23 10:58:01,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148690 to 148336. [2020-12-23 10:58:01,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148336 states. [2020-12-23 10:58:01,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148336 states to 148336 states and 221055 transitions. [2020-12-23 10:58:01,943 INFO L78 Accepts]: Start accepts. Automaton has 148336 states and 221055 transitions. Word has length 83 [2020-12-23 10:58:01,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:58:01,944 INFO L481 AbstractCegarLoop]: Abstraction has 148336 states and 221055 transitions. [2020-12-23 10:58:01,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:58:01,944 INFO L276 IsEmpty]: Start isEmpty. Operand 148336 states and 221055 transitions. [2020-12-23 10:58:02,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-12-23 10:58:02,001 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:58:02,001 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:58:02,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 10:58:02,001 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:58:02,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:58:02,002 INFO L82 PathProgramCache]: Analyzing trace with hash 967908386, now seen corresponding path program 1 times [2020-12-23 10:58:02,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:58:02,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330208923] [2020-12-23 10:58:02,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:58:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:58:02,273 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:58:02,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330208923] [2020-12-23 10:58:02,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692036522] [2020-12-23 10:58:02,274 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 10:58:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:58:02,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 10:58:02,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 10:58:02,865 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 10:58:02,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 10:58:02,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4] total 12 [2020-12-23 10:58:02,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342787046] [2020-12-23 10:58:02,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-23 10:58:02,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:58:02,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-23 10:58:02,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-12-23 10:58:02,868 INFO L87 Difference]: Start difference. First operand 148336 states and 221055 transitions. Second operand 12 states. [2020-12-23 11:00:18,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:00:18,652 INFO L93 Difference]: Finished difference Result 1539580 states and 2276629 transitions. [2020-12-23 11:00:18,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-12-23 11:00:18,652 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 114 [2020-12-23 11:00:18,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:00:22,248 INFO L225 Difference]: With dead ends: 1539580 [2020-12-23 11:00:22,248 INFO L226 Difference]: Without dead ends: 1391290 [2020-12-23 11:00:22,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4584 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1978, Invalid=9152, Unknown=0, NotChecked=0, Total=11130