/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.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 11:01:12,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 11:01:13,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 11:01:13,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 11:01:13,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 11:01:13,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 11:01:13,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 11:01:13,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 11:01:13,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 11:01:13,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 11:01:13,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 11:01:13,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 11:01:13,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 11:01:13,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 11:01:13,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 11:01:13,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 11:01:13,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 11:01:13,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 11:01:13,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 11:01:13,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 11:01:13,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 11:01:13,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 11:01:13,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 11:01:13,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 11:01:13,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 11:01:13,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 11:01:13,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 11:01:13,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 11:01:13,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 11:01:13,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 11:01:13,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 11:01:13,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 11:01:13,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 11:01:13,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 11:01:13,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 11:01:13,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 11:01:13,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 11:01:13,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 11:01:13,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 11:01:13,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 11:01:13,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 11:01:13,147 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 11:01:13,196 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 11:01:13,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 11:01:13,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 11:01:13,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 11:01:13,202 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 11:01:13,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 11:01:13,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 11:01:13,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 11:01:13,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 11:01:13,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 11:01:13,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 11:01:13,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 11:01:13,204 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 11:01:13,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 11:01:13,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 11:01:13,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 11:01:13,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 11:01:13,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 11:01:13,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 11:01:13,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 11:01:13,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 11:01:13,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 11:01:13,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 11:01:13,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 11:01:13,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 11:01:13,207 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 11:01:13,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 11:01:13,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 11:01:13,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 11:01:13,683 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 11:01:13,684 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 11:01:13,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-12-23 11:01:13,777 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e7c254f05/fa29c778d27849eea7201b500bd774e6/FLAG622b7f76a [2020-12-23 11:01:14,535 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 11:01:14,536 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-12-23 11:01:14,561 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e7c254f05/fa29c778d27849eea7201b500bd774e6/FLAG622b7f76a [2020-12-23 11:01:14,788 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e7c254f05/fa29c778d27849eea7201b500bd774e6 [2020-12-23 11:01:14,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 11:01:14,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 11:01:14,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 11:01:14,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 11:01:14,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 11:01:14,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:01:14" (1/1) ... [2020-12-23 11:01:14,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65e70e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:01:14, skipping insertion in model container [2020-12-23 11:01:14,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:01:14" (1/1) ... [2020-12-23 11:01:14,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 11:01:14,883 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1406~0,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[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~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[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_2236~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_1546~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1555_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~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[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__return_1616~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1617_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_3~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~2,] [2020-12-23 11:01:15,161 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.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[7139,7152] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1623_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1555_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_1559~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,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[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~__return_1856~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_4~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~3,] [2020-12-23 11:01:15,209 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.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[10026,10039] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~3,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~3,] 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[~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[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~__return_2039~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_5~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~4,] [2020-12-23 11:01:15,236 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.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11117,11130] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,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[~check__tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~__return_2203~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_6~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~5,] [2020-12-23 11:01:15,247 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.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11723,11736] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~3,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~3,] 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__m3~4,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~4,] 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[~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[~check__tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~__return_1770~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_7~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~6,] [2020-12-23 11:01:15,272 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.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13142,13155] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,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[~check__tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~__return_1925~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_8~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~7,] [2020-12-23 11:01:15,279 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.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13748,13761] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1623_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~5,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~5,] 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[~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[~check__tmp~8,] left hand side expression in assignment: lhs: VariableLHS[~__return_2120~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_9~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~8,] [2020-12-23 11:01:15,291 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.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14719,14732] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,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[~check__tmp~9,] left hand side expression in assignment: lhs: VariableLHS[~__return_2272~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1617_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,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[~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[~check__tmp~10,] left hand side expression in assignment: lhs: VariableLHS[~__return_2167~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_10~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~9,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,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[~node3__m3~6,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] 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[~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[~check__tmp~11,] left hand side expression in assignment: lhs: VariableLHS[~__return_2072~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_11~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~10,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] 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[~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[~check__tmp~12,] left hand side expression in assignment: lhs: VariableLHS[~__return_1988~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_12~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~11,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,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[~node2__m2~4,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~7,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~3,] 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[~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[~check__tmp~13,] left hand side expression in assignment: lhs: VariableLHS[~__return_1889~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_13~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~12,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~3,] 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[~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[~check__tmp~14,] left hand side expression in assignment: lhs: VariableLHS[~__return_1817~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_14~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~13,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~8,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~4,] 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[~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[~check__tmp~15,] left hand side expression in assignment: lhs: VariableLHS[~__return_1707~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_15~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~14,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~4,] 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[~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[~check__tmp~16,] left hand side expression in assignment: lhs: VariableLHS[~__return_1479~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_16~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~15,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] [2020-12-23 11:01:15,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:01:15,394 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1406~0,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[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~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[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_2236~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_1546~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1555_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~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[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__return_1616~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1617_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_3~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~2,] [2020-12-23 11:01:15,475 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.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[7139,7152] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1623_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1555_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_1559~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,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[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~__return_1856~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_4~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~3,] [2020-12-23 11:01:15,512 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.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[10026,10039] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~3,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~3,] 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[~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[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~__return_2039~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_5~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~4,] [2020-12-23 11:01:15,525 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.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11117,11130] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,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[~check__tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~__return_2203~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_6~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~5,] [2020-12-23 11:01:15,535 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.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11723,11736] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~3,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~3,] 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__m3~4,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~4,] 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[~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[~check__tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~__return_1770~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_7~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~6,] [2020-12-23 11:01:15,554 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.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13142,13155] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,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[~check__tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~__return_1925~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_8~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~7,] [2020-12-23 11:01:15,573 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.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13748,13761] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1623_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~5,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~5,] 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[~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[~check__tmp~8,] left hand side expression in assignment: lhs: VariableLHS[~__return_2120~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_9~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~8,] [2020-12-23 11:01:15,587 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.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14719,14732] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,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[~check__tmp~9,] left hand side expression in assignment: lhs: VariableLHS[~__return_2272~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1617_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,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[~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[~check__tmp~10,] left hand side expression in assignment: lhs: VariableLHS[~__return_2167~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_10~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~9,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,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[~node3__m3~6,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] 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[~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[~check__tmp~11,] left hand side expression in assignment: lhs: VariableLHS[~__return_2072~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_11~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~10,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] 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[~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[~check__tmp~12,] left hand side expression in assignment: lhs: VariableLHS[~__return_1988~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_12~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~11,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,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[~node2__m2~4,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~7,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~3,] 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[~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[~check__tmp~13,] left hand side expression in assignment: lhs: VariableLHS[~__return_1889~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_13~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~12,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~3,] 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[~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[~check__tmp~14,] left hand side expression in assignment: lhs: VariableLHS[~__return_1817~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_14~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~13,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~8,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~4,] 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[~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[~check__tmp~15,] left hand side expression in assignment: lhs: VariableLHS[~__return_1707~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_15~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~14,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~4,] 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[~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[~check__tmp~16,] left hand side expression in assignment: lhs: VariableLHS[~__return_1479~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_16~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~15,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] [2020-12-23 11:01:15,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:01:15,736 INFO L208 MainTranslator]: Completed translation [2020-12-23 11:01:15,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:01:15 WrapperNode [2020-12-23 11:01:15,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 11:01:15,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 11:01:15,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 11:01:15,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 11:01:15,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:01:15" (1/1) ... [2020-12-23 11:01:15,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:01:15" (1/1) ... [2020-12-23 11:01:15,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 11:01:15,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 11:01:15,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 11:01:15,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 11:01:15,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:01:15" (1/1) ... [2020-12-23 11:01:15,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:01:15" (1/1) ... [2020-12-23 11:01:15,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:01:15" (1/1) ... [2020-12-23 11:01:15,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:01:15" (1/1) ... [2020-12-23 11:01:15,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:01:15" (1/1) ... [2020-12-23 11:01:15,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:01:15" (1/1) ... [2020-12-23 11:01:15,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:01:15" (1/1) ... [2020-12-23 11:01:15,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 11:01:15,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 11:01:15,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 11:01:15,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 11:01:15,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:01:15" (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 11:01:16,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 11:01:16,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 11:01:16,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 11:01:16,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 11:01:17,684 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 11:01:17,684 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 11:01:17,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:01:17 BoogieIcfgContainer [2020-12-23 11:01:17,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 11:01:17,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 11:01:17,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 11:01:17,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 11:01:17,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:01:14" (1/3) ... [2020-12-23 11:01:17,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a25173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:01:17, skipping insertion in model container [2020-12-23 11:01:17,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:01:15" (2/3) ... [2020-12-23 11:01:17,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a25173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:01:17, skipping insertion in model container [2020-12-23 11:01:17,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:01:17" (3/3) ... [2020-12-23 11:01:17,697 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-12-23 11:01:17,704 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 11:01:17,714 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-23 11:01:17,747 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-23 11:01:17,795 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 11:01:17,795 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 11:01:17,796 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 11:01:17,796 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 11:01:17,796 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 11:01:17,796 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 11:01:17,796 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 11:01:17,796 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 11:01:17,822 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-12-23 11:01:17,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-23 11:01:17,832 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:17,833 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] [2020-12-23 11:01:17,834 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:17,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:17,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1485336045, now seen corresponding path program 1 times [2020-12-23 11:01:17,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:17,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624504297] [2020-12-23 11:01:17,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:18,318 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 11:01:18,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624504297] [2020-12-23 11:01:18,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:18,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:01:18,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133267186] [2020-12-23 11:01:18,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:01:18,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:18,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:01:18,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:01:18,346 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-12-23 11:01:18,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:18,759 INFO L93 Difference]: Finished difference Result 339 states and 570 transitions. [2020-12-23 11:01:18,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:01:18,761 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-12-23 11:01:18,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:18,792 INFO L225 Difference]: With dead ends: 339 [2020-12-23 11:01:18,792 INFO L226 Difference]: Without dead ends: 175 [2020-12-23 11:01:18,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 11:01:18,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-12-23 11:01:18,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2020-12-23 11:01:18,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-12-23 11:01:18,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 216 transitions. [2020-12-23 11:01:18,855 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 216 transitions. Word has length 47 [2020-12-23 11:01:18,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:18,856 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 216 transitions. [2020-12-23 11:01:18,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:01:18,856 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 216 transitions. [2020-12-23 11:01:18,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-23 11:01:18,859 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:18,859 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] [2020-12-23 11:01:18,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 11:01:18,860 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:18,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:18,861 INFO L82 PathProgramCache]: Analyzing trace with hash 200422799, now seen corresponding path program 1 times [2020-12-23 11:01:18,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:18,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969282171] [2020-12-23 11:01:18,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:19,108 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 11:01:19,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969282171] [2020-12-23 11:01:19,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:19,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:01:19,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655825906] [2020-12-23 11:01:19,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:01:19,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:19,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:01:19,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:01:19,116 INFO L87 Difference]: Start difference. First operand 175 states and 216 transitions. Second operand 5 states. [2020-12-23 11:01:19,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:19,472 INFO L93 Difference]: Finished difference Result 298 states and 377 transitions. [2020-12-23 11:01:19,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:01:19,473 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2020-12-23 11:01:19,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:19,482 INFO L225 Difference]: With dead ends: 298 [2020-12-23 11:01:19,484 INFO L226 Difference]: Without dead ends: 165 [2020-12-23 11:01:19,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 11:01:19,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-12-23 11:01:19,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-12-23 11:01:19,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-12-23 11:01:19,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 203 transitions. [2020-12-23 11:01:19,522 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 203 transitions. Word has length 48 [2020-12-23 11:01:19,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:19,525 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 203 transitions. [2020-12-23 11:01:19,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:01:19,525 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 203 transitions. [2020-12-23 11:01:19,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-23 11:01:19,529 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:19,530 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] [2020-12-23 11:01:19,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 11:01:19,530 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:19,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:19,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1089931239, now seen corresponding path program 1 times [2020-12-23 11:01:19,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:19,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100503196] [2020-12-23 11:01:19,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:19,723 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 11:01:19,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100503196] [2020-12-23 11:01:19,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:19,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:01:19,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819412982] [2020-12-23 11:01:19,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:01:19,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:19,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:01:19,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:01:19,727 INFO L87 Difference]: Start difference. First operand 165 states and 203 transitions. Second operand 5 states. [2020-12-23 11:01:19,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:19,906 INFO L93 Difference]: Finished difference Result 288 states and 363 transitions. [2020-12-23 11:01:19,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:01:19,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2020-12-23 11:01:19,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:19,908 INFO L225 Difference]: With dead ends: 288 [2020-12-23 11:01:19,909 INFO L226 Difference]: Without dead ends: 157 [2020-12-23 11:01:19,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 11:01:19,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-12-23 11:01:19,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2020-12-23 11:01:19,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-12-23 11:01:19,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 193 transitions. [2020-12-23 11:01:19,927 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 193 transitions. Word has length 49 [2020-12-23 11:01:19,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:19,927 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 193 transitions. [2020-12-23 11:01:19,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:01:19,927 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 193 transitions. [2020-12-23 11:01:19,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-23 11:01:19,930 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:19,930 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] [2020-12-23 11:01:19,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 11:01:19,931 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:19,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:19,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1243075504, now seen corresponding path program 1 times [2020-12-23 11:01:19,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:19,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552464030] [2020-12-23 11:01:19,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:20,184 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 11:01:20,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552464030] [2020-12-23 11:01:20,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:20,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:01:20,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777033726] [2020-12-23 11:01:20,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:01:20,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:20,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:01:20,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:01:20,190 INFO L87 Difference]: Start difference. First operand 157 states and 193 transitions. Second operand 9 states. [2020-12-23 11:01:20,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:20,916 INFO L93 Difference]: Finished difference Result 332 states and 431 transitions. [2020-12-23 11:01:20,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-23 11:01:20,916 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-12-23 11:01:20,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:20,919 INFO L225 Difference]: With dead ends: 332 [2020-12-23 11:01:20,919 INFO L226 Difference]: Without dead ends: 327 [2020-12-23 11:01:20,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-23 11:01:20,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-12-23 11:01:20,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 157. [2020-12-23 11:01:20,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-12-23 11:01:20,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 192 transitions. [2020-12-23 11:01:20,946 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 192 transitions. Word has length 50 [2020-12-23 11:01:20,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:20,947 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 192 transitions. [2020-12-23 11:01:20,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:01:20,947 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 192 transitions. [2020-12-23 11:01:20,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-23 11:01:20,949 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:20,949 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] [2020-12-23 11:01:20,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 11:01:20,950 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:20,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:20,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1139694690, now seen corresponding path program 1 times [2020-12-23 11:01:20,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:20,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780276359] [2020-12-23 11:01:20,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:21,122 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 11:01:21,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780276359] [2020-12-23 11:01:21,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:21,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:01:21,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699785473] [2020-12-23 11:01:21,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:01:21,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:21,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:01:21,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:01:21,125 INFO L87 Difference]: Start difference. First operand 157 states and 192 transitions. Second operand 9 states. [2020-12-23 11:01:21,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:21,800 INFO L93 Difference]: Finished difference Result 391 states and 514 transitions. [2020-12-23 11:01:21,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-23 11:01:21,800 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-12-23 11:01:21,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:21,803 INFO L225 Difference]: With dead ends: 391 [2020-12-23 11:01:21,804 INFO L226 Difference]: Without dead ends: 331 [2020-12-23 11:01:21,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-23 11:01:21,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-12-23 11:01:21,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 157. [2020-12-23 11:01:21,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-12-23 11:01:21,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 191 transitions. [2020-12-23 11:01:21,822 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 191 transitions. Word has length 50 [2020-12-23 11:01:21,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:21,823 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 191 transitions. [2020-12-23 11:01:21,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:01:21,823 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 191 transitions. [2020-12-23 11:01:21,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-23 11:01:21,825 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:21,825 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] [2020-12-23 11:01:21,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 11:01:21,826 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:21,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:21,826 INFO L82 PathProgramCache]: Analyzing trace with hash 134088220, now seen corresponding path program 1 times [2020-12-23 11:01:21,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:21,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938750201] [2020-12-23 11:01:21,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:21,971 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 11:01:21,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938750201] [2020-12-23 11:01:21,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:21,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 11:01:21,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827101824] [2020-12-23 11:01:21,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 11:01:21,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:21,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 11:01:21,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-23 11:01:21,974 INFO L87 Difference]: Start difference. First operand 157 states and 191 transitions. Second operand 8 states. [2020-12-23 11:01:22,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:22,384 INFO L93 Difference]: Finished difference Result 312 states and 389 transitions. [2020-12-23 11:01:22,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 11:01:22,385 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-12-23 11:01:22,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:22,388 INFO L225 Difference]: With dead ends: 312 [2020-12-23 11:01:22,388 INFO L226 Difference]: Without dead ends: 229 [2020-12-23 11:01:22,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-12-23 11:01:22,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-12-23 11:01:22,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 157. [2020-12-23 11:01:22,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-12-23 11:01:22,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 190 transitions. [2020-12-23 11:01:22,412 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 190 transitions. Word has length 50 [2020-12-23 11:01:22,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:22,414 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 190 transitions. [2020-12-23 11:01:22,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 11:01:22,419 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 190 transitions. [2020-12-23 11:01:22,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 11:01:22,424 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:22,424 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] [2020-12-23 11:01:22,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 11:01:22,424 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:22,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:22,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1263855603, now seen corresponding path program 1 times [2020-12-23 11:01:22,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:22,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153536096] [2020-12-23 11:01:22,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:23,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:01:23,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153536096] [2020-12-23 11:01:23,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:23,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-12-23 11:01:23,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392250085] [2020-12-23 11:01:23,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-23 11:01:23,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:23,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-23 11:01:23,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2020-12-23 11:01:23,125 INFO L87 Difference]: Start difference. First operand 157 states and 190 transitions. Second operand 19 states. [2020-12-23 11:01:23,344 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2020-12-23 11:01:23,942 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-23 11:01:24,315 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-12-23 11:01:24,502 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-12-23 11:01:25,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:25,658 INFO L93 Difference]: Finished difference Result 444 states and 563 transitions. [2020-12-23 11:01:25,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-23 11:01:25,659 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2020-12-23 11:01:25,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:25,662 INFO L225 Difference]: With dead ends: 444 [2020-12-23 11:01:25,662 INFO L226 Difference]: Without dead ends: 397 [2020-12-23 11:01:25,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2020-12-23 11:01:25,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-12-23 11:01:25,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 163. [2020-12-23 11:01:25,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-12-23 11:01:25,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 198 transitions. [2020-12-23 11:01:25,682 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 198 transitions. Word has length 52 [2020-12-23 11:01:25,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:25,682 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 198 transitions. [2020-12-23 11:01:25,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-23 11:01:25,683 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 198 transitions. [2020-12-23 11:01:25,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 11:01:25,684 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:25,684 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] [2020-12-23 11:01:25,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 11:01:25,684 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:25,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:25,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1250594545, now seen corresponding path program 1 times [2020-12-23 11:01:25,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:25,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861889341] [2020-12-23 11:01:25,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:26,293 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 11:01:26,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861889341] [2020-12-23 11:01:26,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:26,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-12-23 11:01:26,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677665985] [2020-12-23 11:01:26,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-23 11:01:26,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:26,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-23 11:01:26,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2020-12-23 11:01:26,300 INFO L87 Difference]: Start difference. First operand 163 states and 198 transitions. Second operand 19 states. [2020-12-23 11:01:26,610 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2020-12-23 11:01:27,369 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-12-23 11:01:27,670 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-23 11:01:28,011 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-12-23 11:01:29,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:29,596 INFO L93 Difference]: Finished difference Result 456 states and 593 transitions. [2020-12-23 11:01:29,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-23 11:01:29,597 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2020-12-23 11:01:29,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:29,601 INFO L225 Difference]: With dead ends: 456 [2020-12-23 11:01:29,601 INFO L226 Difference]: Without dead ends: 450 [2020-12-23 11:01:29,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-12-23 11:01:29,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-12-23 11:01:29,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 163. [2020-12-23 11:01:29,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-12-23 11:01:29,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 197 transitions. [2020-12-23 11:01:29,623 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 197 transitions. Word has length 52 [2020-12-23 11:01:29,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:29,623 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 197 transitions. [2020-12-23 11:01:29,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-23 11:01:29,623 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 197 transitions. [2020-12-23 11:01:29,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 11:01:29,624 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:29,624 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] [2020-12-23 11:01:29,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 11:01:29,625 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:29,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:29,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1783814727, now seen corresponding path program 1 times [2020-12-23 11:01:29,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:29,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950537043] [2020-12-23 11:01:29,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:29,966 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 11:01:29,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950537043] [2020-12-23 11:01:29,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:29,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-23 11:01:29,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94168700] [2020-12-23 11:01:29,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 11:01:29,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:29,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 11:01:29,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-12-23 11:01:29,969 INFO L87 Difference]: Start difference. First operand 163 states and 197 transitions. Second operand 10 states. [2020-12-23 11:01:30,558 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2020-12-23 11:01:30,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:30,932 INFO L93 Difference]: Finished difference Result 406 states and 524 transitions. [2020-12-23 11:01:30,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-23 11:01:30,932 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2020-12-23 11:01:30,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:30,935 INFO L225 Difference]: With dead ends: 406 [2020-12-23 11:01:30,935 INFO L226 Difference]: Without dead ends: 324 [2020-12-23 11:01:30,936 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-12-23 11:01:30,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-12-23 11:01:30,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 124. [2020-12-23 11:01:30,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-12-23 11:01:30,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 151 transitions. [2020-12-23 11:01:30,956 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 151 transitions. Word has length 52 [2020-12-23 11:01:30,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:30,957 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 151 transitions. [2020-12-23 11:01:30,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 11:01:30,957 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 151 transitions. [2020-12-23 11:01:30,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 11:01:30,958 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:30,958 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] [2020-12-23 11:01:30,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 11:01:30,958 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:30,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:30,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1706910886, now seen corresponding path program 1 times [2020-12-23 11:01:30,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:30,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340365951] [2020-12-23 11:01:30,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:31,503 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 11:01:31,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340365951] [2020-12-23 11:01:31,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:31,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-12-23 11:01:31,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784009893] [2020-12-23 11:01:31,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-23 11:01:31,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:31,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-23 11:01:31,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-12-23 11:01:31,505 INFO L87 Difference]: Start difference. First operand 124 states and 151 transitions. Second operand 19 states. [2020-12-23 11:01:33,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:33,289 INFO L93 Difference]: Finished difference Result 339 states and 432 transitions. [2020-12-23 11:01:33,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-23 11:01:33,289 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2020-12-23 11:01:33,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:33,292 INFO L225 Difference]: With dead ends: 339 [2020-12-23 11:01:33,292 INFO L226 Difference]: Without dead ends: 335 [2020-12-23 11:01:33,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=241, Invalid=1019, Unknown=0, NotChecked=0, Total=1260 [2020-12-23 11:01:33,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-12-23 11:01:33,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 134. [2020-12-23 11:01:33,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-12-23 11:01:33,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 166 transitions. [2020-12-23 11:01:33,325 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 166 transitions. Word has length 52 [2020-12-23 11:01:33,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:33,325 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 166 transitions. [2020-12-23 11:01:33,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-23 11:01:33,326 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 166 transitions. [2020-12-23 11:01:33,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-23 11:01:33,326 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:33,326 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] [2020-12-23 11:01:33,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 11:01:33,327 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:33,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:33,327 INFO L82 PathProgramCache]: Analyzing trace with hash -987220198, now seen corresponding path program 1 times [2020-12-23 11:01:33,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:33,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492691416] [2020-12-23 11:01:33,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:33,779 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 11:01:33,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492691416] [2020-12-23 11:01:33,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:33,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-23 11:01:33,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28507922] [2020-12-23 11:01:33,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-23 11:01:33,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:33,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-23 11:01:33,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-12-23 11:01:33,782 INFO L87 Difference]: Start difference. First operand 134 states and 166 transitions. Second operand 13 states. [2020-12-23 11:01:34,374 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2020-12-23 11:01:34,521 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2020-12-23 11:01:35,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:35,474 INFO L93 Difference]: Finished difference Result 424 states and 564 transitions. [2020-12-23 11:01:35,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-23 11:01:35,475 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 53 [2020-12-23 11:01:35,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:35,478 INFO L225 Difference]: With dead ends: 424 [2020-12-23 11:01:35,478 INFO L226 Difference]: Without dead ends: 404 [2020-12-23 11:01:35,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2020-12-23 11:01:35,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-12-23 11:01:35,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 108. [2020-12-23 11:01:35,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-23 11:01:35,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 133 transitions. [2020-12-23 11:01:35,499 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 133 transitions. Word has length 53 [2020-12-23 11:01:35,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:35,500 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 133 transitions. [2020-12-23 11:01:35,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-23 11:01:35,500 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 133 transitions. [2020-12-23 11:01:35,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-23 11:01:35,500 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:35,501 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] [2020-12-23 11:01:35,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 11:01:35,501 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:35,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:35,501 INFO L82 PathProgramCache]: Analyzing trace with hash 339917441, now seen corresponding path program 1 times [2020-12-23 11:01:35,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:35,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640516884] [2020-12-23 11:01:35,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:35,661 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 11:01:35,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640516884] [2020-12-23 11:01:35,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:35,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:01:35,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923180049] [2020-12-23 11:01:35,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 11:01:35,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:35,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 11:01:35,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-23 11:01:35,664 INFO L87 Difference]: Start difference. First operand 108 states and 133 transitions. Second operand 10 states. [2020-12-23 11:01:36,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:36,856 INFO L93 Difference]: Finished difference Result 413 states and 554 transitions. [2020-12-23 11:01:36,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-23 11:01:36,856 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2020-12-23 11:01:36,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:36,858 INFO L225 Difference]: With dead ends: 413 [2020-12-23 11:01:36,858 INFO L226 Difference]: Without dead ends: 352 [2020-12-23 11:01:36,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2020-12-23 11:01:36,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2020-12-23 11:01:36,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 112. [2020-12-23 11:01:36,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-12-23 11:01:36,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 137 transitions. [2020-12-23 11:01:36,883 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 137 transitions. Word has length 53 [2020-12-23 11:01:36,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:36,883 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 137 transitions. [2020-12-23 11:01:36,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 11:01:36,883 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 137 transitions. [2020-12-23 11:01:36,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-23 11:01:36,884 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:36,884 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] [2020-12-23 11:01:36,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 11:01:36,884 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:36,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:36,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1175492289, now seen corresponding path program 1 times [2020-12-23 11:01:36,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:36,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680891482] [2020-12-23 11:01:36,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:37,004 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 11:01:37,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680891482] [2020-12-23 11:01:37,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:37,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:01:37,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039354144] [2020-12-23 11:01:37,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:01:37,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:37,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:01:37,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:01:37,007 INFO L87 Difference]: Start difference. First operand 112 states and 137 transitions. Second operand 9 states. [2020-12-23 11:01:37,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:37,483 INFO L93 Difference]: Finished difference Result 239 states and 309 transitions. [2020-12-23 11:01:37,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 11:01:37,488 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2020-12-23 11:01:37,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:37,490 INFO L225 Difference]: With dead ends: 239 [2020-12-23 11:01:37,490 INFO L226 Difference]: Without dead ends: 178 [2020-12-23 11:01:37,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-12-23 11:01:37,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-12-23 11:01:37,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 108. [2020-12-23 11:01:37,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-23 11:01:37,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 132 transitions. [2020-12-23 11:01:37,512 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 132 transitions. Word has length 54 [2020-12-23 11:01:37,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:37,512 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 132 transitions. [2020-12-23 11:01:37,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:01:37,512 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 132 transitions. [2020-12-23 11:01:37,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-23 11:01:37,513 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:37,513 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] [2020-12-23 11:01:37,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 11:01:37,513 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:37,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:37,514 INFO L82 PathProgramCache]: Analyzing trace with hash -824240014, now seen corresponding path program 1 times [2020-12-23 11:01:37,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:37,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682800674] [2020-12-23 11:01:37,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:38,019 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 11:01:38,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682800674] [2020-12-23 11:01:38,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:38,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-23 11:01:38,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340322185] [2020-12-23 11:01:38,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-23 11:01:38,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:38,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-23 11:01:38,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-12-23 11:01:38,022 INFO L87 Difference]: Start difference. First operand 108 states and 132 transitions. Second operand 18 states. [2020-12-23 11:01:38,205 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2020-12-23 11:01:38,785 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-12-23 11:01:40,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:40,286 INFO L93 Difference]: Finished difference Result 400 states and 531 transitions. [2020-12-23 11:01:40,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-23 11:01:40,286 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 55 [2020-12-23 11:01:40,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:40,289 INFO L225 Difference]: With dead ends: 400 [2020-12-23 11:01:40,289 INFO L226 Difference]: Without dead ends: 394 [2020-12-23 11:01:40,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=192, Invalid=800, Unknown=0, NotChecked=0, Total=992 [2020-12-23 11:01:40,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-12-23 11:01:40,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 119. [2020-12-23 11:01:40,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-12-23 11:01:40,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 146 transitions. [2020-12-23 11:01:40,317 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 146 transitions. Word has length 55 [2020-12-23 11:01:40,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:40,318 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 146 transitions. [2020-12-23 11:01:40,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-23 11:01:40,318 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 146 transitions. [2020-12-23 11:01:40,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-23 11:01:40,318 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:40,319 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] [2020-12-23 11:01:40,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 11:01:40,319 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:40,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:40,320 INFO L82 PathProgramCache]: Analyzing trace with hash -995695438, now seen corresponding path program 1 times [2020-12-23 11:01:40,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:40,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401009947] [2020-12-23 11:01:40,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:40,867 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 11:01:40,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401009947] [2020-12-23 11:01:40,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:40,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-12-23 11:01:40,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133584336] [2020-12-23 11:01:40,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-23 11:01:40,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:40,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-23 11:01:40,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-12-23 11:01:40,869 INFO L87 Difference]: Start difference. First operand 119 states and 146 transitions. Second operand 14 states. [2020-12-23 11:01:41,484 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2020-12-23 11:01:41,622 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2020-12-23 11:01:41,765 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2020-12-23 11:01:41,940 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-12-23 11:01:42,445 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2020-12-23 11:01:43,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:43,081 INFO L93 Difference]: Finished difference Result 365 states and 494 transitions. [2020-12-23 11:01:43,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-23 11:01:43,082 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 56 [2020-12-23 11:01:43,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:43,084 INFO L225 Difference]: With dead ends: 365 [2020-12-23 11:01:43,084 INFO L226 Difference]: Without dead ends: 359 [2020-12-23 11:01:43,085 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=160, Invalid=542, Unknown=0, NotChecked=0, Total=702 [2020-12-23 11:01:43,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-12-23 11:01:43,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 114. [2020-12-23 11:01:43,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-12-23 11:01:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2020-12-23 11:01:43,109 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 56 [2020-12-23 11:01:43,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:43,110 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2020-12-23 11:01:43,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-23 11:01:43,110 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2020-12-23 11:01:43,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-23 11:01:43,111 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:43,111 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] [2020-12-23 11:01:43,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 11:01:43,111 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:43,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:43,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1326812170, now seen corresponding path program 1 times [2020-12-23 11:01:43,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:43,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551763961] [2020-12-23 11:01:43,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:43,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:01:43,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551763961] [2020-12-23 11:01:43,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:43,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-23 11:01:43,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246335588] [2020-12-23 11:01:43,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 11:01:43,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:43,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 11:01:43,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-12-23 11:01:43,424 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand 11 states. [2020-12-23 11:01:44,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:44,388 INFO L93 Difference]: Finished difference Result 264 states and 350 transitions. [2020-12-23 11:01:44,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 11:01:44,388 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-12-23 11:01:44,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:44,389 INFO L225 Difference]: With dead ends: 264 [2020-12-23 11:01:44,389 INFO L226 Difference]: Without dead ends: 258 [2020-12-23 11:01:44,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2020-12-23 11:01:44,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-12-23 11:01:44,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 102. [2020-12-23 11:01:44,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-12-23 11:01:44,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 126 transitions. [2020-12-23 11:01:44,420 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 126 transitions. Word has length 56 [2020-12-23 11:01:44,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:44,421 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 126 transitions. [2020-12-23 11:01:44,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 11:01:44,421 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 126 transitions. [2020-12-23 11:01:44,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-23 11:01:44,421 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:44,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:01:44,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 11:01:44,422 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:44,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:44,422 INFO L82 PathProgramCache]: Analyzing trace with hash 2042294308, now seen corresponding path program 1 times [2020-12-23 11:01:44,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:44,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75597092] [2020-12-23 11:01:44,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:44,482 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 11:01:44,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75597092] [2020-12-23 11:01:44,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:44,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:01:44,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788268479] [2020-12-23 11:01:44,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:01:44,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:44,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:01:44,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:01:44,485 INFO L87 Difference]: Start difference. First operand 102 states and 126 transitions. Second operand 3 states. [2020-12-23 11:01:44,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:44,552 INFO L93 Difference]: Finished difference Result 184 states and 244 transitions. [2020-12-23 11:01:44,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:01:44,553 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-12-23 11:01:44,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:44,555 INFO L225 Difference]: With dead ends: 184 [2020-12-23 11:01:44,555 INFO L226 Difference]: Without dead ends: 141 [2020-12-23 11:01:44,556 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 11:01:44,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-12-23 11:01:44,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139. [2020-12-23 11:01:44,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-12-23 11:01:44,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 179 transitions. [2020-12-23 11:01:44,601 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 179 transitions. Word has length 73 [2020-12-23 11:01:44,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:44,601 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 179 transitions. [2020-12-23 11:01:44,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:01:44,601 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 179 transitions. [2020-12-23 11:01:44,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-23 11:01:44,602 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:44,602 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 11:01:44,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 11:01:44,602 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:44,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:44,603 INFO L82 PathProgramCache]: Analyzing trace with hash -786943772, now seen corresponding path program 1 times [2020-12-23 11:01:44,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:44,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079596351] [2020-12-23 11:01:44,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:44,706 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 11:01:44,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079596351] [2020-12-23 11:01:44,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:44,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:01:44,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309636361] [2020-12-23 11:01:44,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:01:44,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:44,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:01:44,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:01:44,713 INFO L87 Difference]: Start difference. First operand 139 states and 179 transitions. Second operand 5 states. [2020-12-23 11:01:44,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:44,930 INFO L93 Difference]: Finished difference Result 408 states and 569 transitions. [2020-12-23 11:01:44,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:01:44,931 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2020-12-23 11:01:44,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:44,933 INFO L225 Difference]: With dead ends: 408 [2020-12-23 11:01:44,933 INFO L226 Difference]: Without dead ends: 328 [2020-12-23 11:01:44,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:01:44,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-12-23 11:01:45,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 180. [2020-12-23 11:01:45,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-12-23 11:01:45,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 240 transitions. [2020-12-23 11:01:45,009 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 240 transitions. Word has length 75 [2020-12-23 11:01:45,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:45,009 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 240 transitions. [2020-12-23 11:01:45,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:01:45,009 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 240 transitions. [2020-12-23 11:01:45,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-23 11:01:45,010 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:45,010 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 11:01:45,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 11:01:45,011 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:45,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:45,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1322322984, now seen corresponding path program 1 times [2020-12-23 11:01:45,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:45,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223313647] [2020-12-23 11:01:45,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:45,099 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 11:01:45,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223313647] [2020-12-23 11:01:45,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:45,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:01:45,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571083490] [2020-12-23 11:01:45,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:01:45,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:45,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:01:45,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:01:45,103 INFO L87 Difference]: Start difference. First operand 180 states and 240 transitions. Second operand 5 states. [2020-12-23 11:01:45,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:45,313 INFO L93 Difference]: Finished difference Result 429 states and 600 transitions. [2020-12-23 11:01:45,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:01:45,314 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2020-12-23 11:01:45,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:45,316 INFO L225 Difference]: With dead ends: 429 [2020-12-23 11:01:45,316 INFO L226 Difference]: Without dead ends: 349 [2020-12-23 11:01:45,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:01:45,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-12-23 11:01:45,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 262. [2020-12-23 11:01:45,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-12-23 11:01:45,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 362 transitions. [2020-12-23 11:01:45,433 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 362 transitions. Word has length 75 [2020-12-23 11:01:45,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:45,433 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 362 transitions. [2020-12-23 11:01:45,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:01:45,433 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 362 transitions. [2020-12-23 11:01:45,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-23 11:01:45,438 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:45,438 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 11:01:45,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 11:01:45,438 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:45,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:45,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1446907099, now seen corresponding path program 1 times [2020-12-23 11:01:45,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:45,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029206901] [2020-12-23 11:01:45,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:45,505 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 11:01:45,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029206901] [2020-12-23 11:01:45,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:45,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:01:45,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305886993] [2020-12-23 11:01:45,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:01:45,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:45,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:01:45,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:01:45,508 INFO L87 Difference]: Start difference. First operand 262 states and 362 transitions. Second operand 3 states. [2020-12-23 11:01:45,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:45,705 INFO L93 Difference]: Finished difference Result 590 states and 845 transitions. [2020-12-23 11:01:45,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:01:45,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-12-23 11:01:45,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:45,708 INFO L225 Difference]: With dead ends: 590 [2020-12-23 11:01:45,709 INFO L226 Difference]: Without dead ends: 387 [2020-12-23 11:01:45,712 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 11:01:45,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2020-12-23 11:01:45,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 385. [2020-12-23 11:01:45,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-12-23 11:01:45,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 537 transitions. [2020-12-23 11:01:45,918 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 537 transitions. Word has length 75 [2020-12-23 11:01:45,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:45,918 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 537 transitions. [2020-12-23 11:01:45,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:01:45,918 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 537 transitions. [2020-12-23 11:01:45,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-23 11:01:45,919 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:45,919 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 11:01:45,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 11:01:45,920 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:45,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:45,920 INFO L82 PathProgramCache]: Analyzing trace with hash 2078767204, now seen corresponding path program 1 times [2020-12-23 11:01:45,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:45,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486440545] [2020-12-23 11:01:45,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:45,983 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 11:01:45,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486440545] [2020-12-23 11:01:45,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:45,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:01:45,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599061100] [2020-12-23 11:01:45,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:01:45,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:45,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:01:45,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:01:45,987 INFO L87 Difference]: Start difference. First operand 385 states and 537 transitions. Second operand 3 states. [2020-12-23 11:01:46,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:46,378 INFO L93 Difference]: Finished difference Result 988 states and 1403 transitions. [2020-12-23 11:01:46,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:01:46,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-12-23 11:01:46,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:46,382 INFO L225 Difference]: With dead ends: 988 [2020-12-23 11:01:46,382 INFO L226 Difference]: Without dead ends: 662 [2020-12-23 11:01:46,383 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 11:01:46,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2020-12-23 11:01:46,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 660. [2020-12-23 11:01:46,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 660 states. [2020-12-23 11:01:46,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 914 transitions. [2020-12-23 11:01:46,721 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 914 transitions. Word has length 75 [2020-12-23 11:01:46,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:46,722 INFO L481 AbstractCegarLoop]: Abstraction has 660 states and 914 transitions. [2020-12-23 11:01:46,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:01:46,722 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 914 transitions. [2020-12-23 11:01:46,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-23 11:01:46,723 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:46,723 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 11:01:46,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 11:01:46,723 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:46,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:46,724 INFO L82 PathProgramCache]: Analyzing trace with hash 95104542, now seen corresponding path program 1 times [2020-12-23 11:01:46,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:46,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270618514] [2020-12-23 11:01:46,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:46,809 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 11:01:46,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270618514] [2020-12-23 11:01:46,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:46,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:01:46,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742616270] [2020-12-23 11:01:46,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:01:46,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:46,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:01:46,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:01:46,811 INFO L87 Difference]: Start difference. First operand 660 states and 914 transitions. Second operand 5 states. [2020-12-23 11:01:47,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:47,266 INFO L93 Difference]: Finished difference Result 1287 states and 1800 transitions. [2020-12-23 11:01:47,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:01:47,267 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2020-12-23 11:01:47,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:47,273 INFO L225 Difference]: With dead ends: 1287 [2020-12-23 11:01:47,273 INFO L226 Difference]: Without dead ends: 1064 [2020-12-23 11:01:47,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:01:47,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2020-12-23 11:01:47,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 811. [2020-12-23 11:01:47,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-12-23 11:01:47,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1128 transitions. [2020-12-23 11:01:47,570 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1128 transitions. Word has length 75 [2020-12-23 11:01:47,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:47,571 INFO L481 AbstractCegarLoop]: Abstraction has 811 states and 1128 transitions. [2020-12-23 11:01:47,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:01:47,571 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1128 transitions. [2020-12-23 11:01:47,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-23 11:01:47,572 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:47,572 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 11:01:47,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-23 11:01:47,573 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:47,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:47,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1963614716, now seen corresponding path program 1 times [2020-12-23 11:01:47,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:47,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562340983] [2020-12-23 11:01:47,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:47,628 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 11:01:47,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562340983] [2020-12-23 11:01:47,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:47,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:01:47,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500083227] [2020-12-23 11:01:47,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:01:47,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:47,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:01:47,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:01:47,633 INFO L87 Difference]: Start difference. First operand 811 states and 1128 transitions. Second operand 3 states. [2020-12-23 11:01:48,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:48,133 INFO L93 Difference]: Finished difference Result 2035 states and 2844 transitions. [2020-12-23 11:01:48,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:01:48,133 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-12-23 11:01:48,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:48,140 INFO L225 Difference]: With dead ends: 2035 [2020-12-23 11:01:48,140 INFO L226 Difference]: Without dead ends: 1283 [2020-12-23 11:01:48,141 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 11:01:48,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2020-12-23 11:01:48,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1205. [2020-12-23 11:01:48,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1205 states. [2020-12-23 11:01:48,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1664 transitions. [2020-12-23 11:01:48,587 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1664 transitions. Word has length 76 [2020-12-23 11:01:48,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:48,587 INFO L481 AbstractCegarLoop]: Abstraction has 1205 states and 1664 transitions. [2020-12-23 11:01:48,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:01:48,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1664 transitions. [2020-12-23 11:01:48,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-23 11:01:48,588 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:48,588 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 11:01:48,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-23 11:01:48,589 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:48,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:48,589 INFO L82 PathProgramCache]: Analyzing trace with hash -628172474, now seen corresponding path program 1 times [2020-12-23 11:01:48,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:48,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759017749] [2020-12-23 11:01:48,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:48,640 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 11:01:48,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759017749] [2020-12-23 11:01:48,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:48,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:01:48,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038236221] [2020-12-23 11:01:48,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:01:48,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:48,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:01:48,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:01:48,642 INFO L87 Difference]: Start difference. First operand 1205 states and 1664 transitions. Second operand 3 states. [2020-12-23 11:01:49,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:49,446 INFO L93 Difference]: Finished difference Result 3377 states and 4656 transitions. [2020-12-23 11:01:49,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:01:49,446 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-12-23 11:01:49,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:49,453 INFO L225 Difference]: With dead ends: 3377 [2020-12-23 11:01:49,453 INFO L226 Difference]: Without dead ends: 2231 [2020-12-23 11:01:49,455 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 11:01:49,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-12-23 11:01:50,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2109. [2020-12-23 11:01:50,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2109 states. [2020-12-23 11:01:50,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 2874 transitions. [2020-12-23 11:01:50,357 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 2874 transitions. Word has length 77 [2020-12-23 11:01:50,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:50,358 INFO L481 AbstractCegarLoop]: Abstraction has 2109 states and 2874 transitions. [2020-12-23 11:01:50,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:01:50,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 2874 transitions. [2020-12-23 11:01:50,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-23 11:01:50,358 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:50,358 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 11:01:50,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-23 11:01:50,359 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:50,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:50,359 INFO L82 PathProgramCache]: Analyzing trace with hash -763788569, now seen corresponding path program 1 times [2020-12-23 11:01:50,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:50,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683046415] [2020-12-23 11:01:50,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:50,425 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 11:01:50,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683046415] [2020-12-23 11:01:50,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:50,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:01:50,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798262476] [2020-12-23 11:01:50,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:01:50,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:50,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:01:50,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:01:50,427 INFO L87 Difference]: Start difference. First operand 2109 states and 2874 transitions. Second operand 3 states. [2020-12-23 11:01:52,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:52,422 INFO L93 Difference]: Finished difference Result 5969 states and 8076 transitions. [2020-12-23 11:01:52,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:01:52,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-12-23 11:01:52,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:52,435 INFO L225 Difference]: With dead ends: 5969 [2020-12-23 11:01:52,436 INFO L226 Difference]: Without dead ends: 3919 [2020-12-23 11:01:52,438 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 11:01:52,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2020-12-23 11:01:53,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3677. [2020-12-23 11:01:53,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3677 states. [2020-12-23 11:01:53,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3677 states to 3677 states and 4904 transitions. [2020-12-23 11:01:53,853 INFO L78 Accepts]: Start accepts. Automaton has 3677 states and 4904 transitions. Word has length 78 [2020-12-23 11:01:53,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:53,853 INFO L481 AbstractCegarLoop]: Abstraction has 3677 states and 4904 transitions. [2020-12-23 11:01:53,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:01:53,853 INFO L276 IsEmpty]: Start isEmpty. Operand 3677 states and 4904 transitions. [2020-12-23 11:01:53,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-23 11:01:53,854 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:53,854 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 11:01:53,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-23 11:01:53,855 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:53,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:53,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1461539563, now seen corresponding path program 1 times [2020-12-23 11:01:53,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:53,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414093916] [2020-12-23 11:01:53,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:53,954 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 11:01:53,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414093916] [2020-12-23 11:01:53,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:53,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 11:01:53,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980867453] [2020-12-23 11:01:53,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 11:01:53,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:53,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 11:01:53,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:01:53,957 INFO L87 Difference]: Start difference. First operand 3677 states and 4904 transitions. Second operand 6 states. [2020-12-23 11:01:56,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:56,307 INFO L93 Difference]: Finished difference Result 5622 states and 7464 transitions. [2020-12-23 11:01:56,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 11:01:56,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-12-23 11:01:56,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:56,327 INFO L225 Difference]: With dead ends: 5622 [2020-12-23 11:01:56,327 INFO L226 Difference]: Without dead ends: 5620 [2020-12-23 11:01:56,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:01:56,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2020-12-23 11:01:57,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 3773. [2020-12-23 11:01:57,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3773 states. [2020-12-23 11:01:57,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3773 states to 3773 states and 4960 transitions. [2020-12-23 11:01:57,752 INFO L78 Accepts]: Start accepts. Automaton has 3773 states and 4960 transitions. Word has length 79 [2020-12-23 11:01:57,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:01:57,752 INFO L481 AbstractCegarLoop]: Abstraction has 3773 states and 4960 transitions. [2020-12-23 11:01:57,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 11:01:57,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3773 states and 4960 transitions. [2020-12-23 11:01:57,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-23 11:01:57,753 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:01:57,753 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 11:01:57,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-23 11:01:57,753 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:01:57,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:01:57,754 INFO L82 PathProgramCache]: Analyzing trace with hash 965347417, now seen corresponding path program 1 times [2020-12-23 11:01:57,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:01:57,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466102366] [2020-12-23 11:01:57,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:01:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:01:57,800 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 11:01:57,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466102366] [2020-12-23 11:01:57,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:01:57,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:01:57,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483035526] [2020-12-23 11:01:57,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:01:57,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:01:57,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:01:57,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:01:57,803 INFO L87 Difference]: Start difference. First operand 3773 states and 4960 transitions. Second operand 3 states. [2020-12-23 11:01:59,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:01:59,201 INFO L93 Difference]: Finished difference Result 7593 states and 10002 transitions. [2020-12-23 11:01:59,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:01:59,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-12-23 11:01:59,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:01:59,215 INFO L225 Difference]: With dead ends: 7593 [2020-12-23 11:01:59,215 INFO L226 Difference]: Without dead ends: 3879 [2020-12-23 11:01:59,224 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 11:01:59,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3879 states. [2020-12-23 11:02:00,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3879 to 3877. [2020-12-23 11:02:00,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3877 states. [2020-12-23 11:02:00,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3877 states to 3877 states and 5028 transitions. [2020-12-23 11:02:00,693 INFO L78 Accepts]: Start accepts. Automaton has 3877 states and 5028 transitions. Word has length 79 [2020-12-23 11:02:00,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:00,693 INFO L481 AbstractCegarLoop]: Abstraction has 3877 states and 5028 transitions. [2020-12-23 11:02:00,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:02:00,694 INFO L276 IsEmpty]: Start isEmpty. Operand 3877 states and 5028 transitions. [2020-12-23 11:02:00,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-23 11:02:00,695 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:00,695 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:00,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-23 11:02:00,695 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:00,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:00,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1381911094, now seen corresponding path program 1 times [2020-12-23 11:02:00,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:00,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587570573] [2020-12-23 11:02:00,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:00,945 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:00,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587570573] [2020-12-23 11:02:00,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329874573] [2020-12-23 11:02:00,946 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 11:02:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:01,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-23 11:02:01,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 11:02:01,446 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 11:02:01,532 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 11:02:01,702 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 11:02:02,033 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:02,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 11:02:02,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2020-12-23 11:02:02,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438126933] [2020-12-23 11:02:02,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-23 11:02:02,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:02,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-23 11:02:02,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-12-23 11:02:02,037 INFO L87 Difference]: Start difference. First operand 3877 states and 5028 transitions. Second operand 18 states. [2020-12-23 11:02:07,505 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-12-23 11:02:07,706 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-12-23 11:02:08,546 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2020-12-23 11:02:08,962 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 30 [2020-12-23 11:02:09,758 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 35 [2020-12-23 11:02:10,262 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2020-12-23 11:02:24,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:24,517 INFO L93 Difference]: Finished difference Result 38447 states and 48996 transitions. [2020-12-23 11:02:24,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-12-23 11:02:24,519 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 101 [2020-12-23 11:02:24,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:24,614 INFO L225 Difference]: With dead ends: 38447 [2020-12-23 11:02:24,614 INFO L226 Difference]: Without dead ends: 34629 [2020-12-23 11:02:24,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2651 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=1537, Invalid=6653, Unknown=0, NotChecked=0, Total=8190 [2020-12-23 11:02:24,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34629 states. [2020-12-23 11:02:28,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34629 to 8266. [2020-12-23 11:02:28,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8266 states. [2020-12-23 11:02:28,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8266 states to 8266 states and 10663 transitions. [2020-12-23 11:02:28,298 INFO L78 Accepts]: Start accepts. Automaton has 8266 states and 10663 transitions. Word has length 101 [2020-12-23 11:02:28,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:28,298 INFO L481 AbstractCegarLoop]: Abstraction has 8266 states and 10663 transitions. [2020-12-23 11:02:28,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-23 11:02:28,299 INFO L276 IsEmpty]: Start isEmpty. Operand 8266 states and 10663 transitions. [2020-12-23 11:02:28,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-23 11:02:28,301 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:28,302 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:28,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-12-23 11:02:28,516 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:28,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:28,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1466079819, now seen corresponding path program 1 times [2020-12-23 11:02:28,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:28,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990663710] [2020-12-23 11:02:28,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-23 11:02:28,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990663710] [2020-12-23 11:02:28,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:28,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:02:28,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713571883] [2020-12-23 11:02:28,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:02:28,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:28,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:02:28,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:02:28,593 INFO L87 Difference]: Start difference. First operand 8266 states and 10663 transitions. Second operand 3 states. [2020-12-23 11:02:32,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:32,128 INFO L93 Difference]: Finished difference Result 15776 states and 20448 transitions. [2020-12-23 11:02:32,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:02:32,129 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-12-23 11:02:32,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:32,147 INFO L225 Difference]: With dead ends: 15776 [2020-12-23 11:02:32,147 INFO L226 Difference]: Without dead ends: 7576 [2020-12-23 11:02:32,158 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 11:02:32,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7576 states. [2020-12-23 11:02:35,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7576 to 7576. [2020-12-23 11:02:35,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7576 states. [2020-12-23 11:02:35,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7576 states to 7576 states and 9731 transitions. [2020-12-23 11:02:35,476 INFO L78 Accepts]: Start accepts. Automaton has 7576 states and 9731 transitions. Word has length 102 [2020-12-23 11:02:35,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:35,476 INFO L481 AbstractCegarLoop]: Abstraction has 7576 states and 9731 transitions. [2020-12-23 11:02:35,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:02:35,477 INFO L276 IsEmpty]: Start isEmpty. Operand 7576 states and 9731 transitions. [2020-12-23 11:02:35,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-23 11:02:35,479 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:35,480 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:35,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-23 11:02:35,480 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:35,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:35,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1423038550, now seen corresponding path program 1 times [2020-12-23 11:02:35,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:35,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627203755] [2020-12-23 11:02:35,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:35,801 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:35,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627203755] [2020-12-23 11:02:35,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394285867] [2020-12-23 11:02:35,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 11:02:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:35,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-23 11:02:35,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 11:02:36,095 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 11:02:36,136 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 11:02:36,268 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 11:02:36,611 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 29 [2020-12-23 11:02:36,883 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:36,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 11:02:36,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2020-12-23 11:02:36,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915831703] [2020-12-23 11:02:36,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-23 11:02:36,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:36,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-23 11:02:36,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-12-23 11:02:36,886 INFO L87 Difference]: Start difference. First operand 7576 states and 9731 transitions. Second operand 19 states. [2020-12-23 11:02:39,632 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2020-12-23 11:02:39,872 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-12-23 11:02:40,272 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2020-12-23 11:02:40,491 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-12-23 11:02:40,726 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-12-23 11:02:41,176 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2020-12-23 11:02:41,390 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-12-23 11:02:41,629 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2020-12-23 11:02:41,938 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-12-23 11:02:42,102 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2020-12-23 11:02:42,518 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2020-12-23 11:02:42,811 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2020-12-23 11:02:43,052 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-12-23 11:02:43,431 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2020-12-23 11:02:43,982 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2020-12-23 11:02:44,295 WARN L197 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2020-12-23 11:02:44,783 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-12-23 11:02:45,185 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 30 [2020-12-23 11:02:45,586 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-12-23 11:02:46,911 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2020-12-23 11:02:47,141 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2020-12-23 11:02:47,386 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2020-12-23 11:02:47,643 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2020-12-23 11:02:47,857 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-12-23 11:02:48,121 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 53 [2020-12-23 11:02:48,588 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-12-23 11:02:48,805 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-12-23 11:02:49,039 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2020-12-23 11:02:49,255 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2020-12-23 11:02:49,719 WARN L197 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-12-23 11:02:50,002 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-12-23 11:02:50,267 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-12-23 11:02:50,544 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-12-23 11:02:50,782 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2020-12-23 11:02:51,078 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2020-12-23 11:02:51,711 WARN L197 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 75 [2020-12-23 11:02:51,990 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-12-23 11:02:52,491 WARN L197 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 75 [2020-12-23 11:02:52,724 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2020-12-23 11:02:53,278 WARN L197 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 76 [2020-12-23 11:02:53,455 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 40 [2020-12-23 11:02:54,013 WARN L197 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 76 [2020-12-23 11:02:54,186 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2020-12-23 11:02:54,409 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-12-23 11:02:54,621 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-12-23 11:02:55,006 WARN L197 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2020-12-23 11:02:55,220 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-12-23 11:02:55,431 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-12-23 11:02:55,935 WARN L197 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2020-12-23 11:02:56,152 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-12-23 11:02:56,985 WARN L197 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2020-12-23 11:02:57,203 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2020-12-23 11:02:57,757 WARN L197 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2020-12-23 11:02:58,001 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-12-23 11:02:58,323 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2020-12-23 11:02:58,489 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2020-12-23 11:02:58,675 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2020-12-23 11:02:59,246 WARN L197 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2020-12-23 11:02:59,414 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 31 [2020-12-23 11:02:59,961 WARN L197 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2020-12-23 11:03:00,497 WARN L197 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2020-12-23 11:03:00,703 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-12-23 11:03:01,217 WARN L197 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2020-12-23 11:03:01,468 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2020-12-23 11:03:01,947 WARN L197 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2020-12-23 11:03:03,128 WARN L197 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2020-12-23 11:03:03,345 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-12-23 11:03:05,638 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2020-12-23 11:03:05,832 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2020-12-23 11:03:06,461 WARN L197 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2020-12-23 11:03:06,651 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2020-12-23 11:03:07,083 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 42 [2020-12-23 11:03:07,227 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2020-12-23 11:03:07,432 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 39 [2020-12-23 11:03:08,185 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2020-12-23 11:03:08,473 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-12-23 11:03:08,657 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2020-12-23 11:03:08,981 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 35 [2020-12-23 11:03:09,293 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 33 [2020-12-23 11:03:09,449 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 30 [2020-12-23 11:03:09,942 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2020-12-23 11:03:10,092 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 31 [2020-12-23 11:03:10,353 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2020-12-23 11:03:10,555 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2020-12-23 11:03:10,783 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 32 [2020-12-23 11:03:10,935 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2020-12-23 11:03:11,280 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 26 [2020-12-23 11:03:11,492 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2020-12-23 11:03:12,211 WARN L197 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-12-23 11:03:12,603 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 40 [2020-12-23 11:03:13,139 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2020-12-23 11:03:13,349 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2020-12-23 11:03:13,515 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2020-12-23 11:03:13,813 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2020-12-23 11:03:14,025 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 30 [2020-12-23 11:03:14,383 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 40 [2020-12-23 11:03:14,546 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 26 [2020-12-23 11:03:15,254 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2020-12-23 11:03:15,468 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2020-12-23 11:03:15,830 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2020-12-23 11:03:16,055 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2020-12-23 11:03:16,293 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2020-12-23 11:03:16,517 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 39 [2020-12-23 11:03:17,107 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2020-12-23 11:03:17,779 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 35 [2020-12-23 11:03:17,996 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 32 [2020-12-23 11:03:18,399 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2020-12-23 11:03:18,863 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 30 [2020-12-23 11:03:20,119 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 35 [2020-12-23 11:03:20,386 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 35 [2020-12-23 11:03:20,589 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 26 [2020-12-23 11:03:20,991 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2020-12-23 11:03:21,166 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 28 [2020-12-23 11:03:21,341 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2020-12-23 11:03:21,536 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 28 [2020-12-23 11:03:21,886 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 29 [2020-12-23 11:03:23,230 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2020-12-23 11:03:23,586 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2020-12-23 11:03:23,851 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2020-12-23 11:03:24,309 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-12-23 11:03:24,585 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 53 [2020-12-23 11:03:24,914 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-12-23 11:03:25,220 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 53 [2020-12-23 11:03:25,539 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2020-12-23 11:03:25,808 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-12-23 11:03:26,229 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2020-12-23 11:03:26,524 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2020-12-23 11:03:26,780 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2020-12-23 11:03:27,128 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 53 [2020-12-23 11:03:27,436 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2020-12-23 11:03:27,676 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-12-23 11:03:28,191 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-12-23 11:03:31,855 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-12-23 11:03:32,503 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2020-12-23 11:03:34,604 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-12-23 11:03:35,214 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 43 [2020-12-23 11:03:35,819 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-12-23 11:03:36,647 WARN L197 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2020-12-23 11:03:37,041 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2020-12-23 11:03:38,274 WARN L197 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2020-12-23 11:03:38,480 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2020-12-23 11:03:42,636 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2020-12-23 11:03:43,245 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2020-12-23 11:03:43,595 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-12-23 11:03:44,361 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 27 [2020-12-23 11:03:48,599 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2020-12-23 11:03:49,170 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2020-12-23 11:03:51,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:51,486 INFO L93 Difference]: Finished difference Result 58416 states and 73288 transitions. [2020-12-23 11:03:51,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 218 states. [2020-12-23 11:03:51,486 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 102 [2020-12-23 11:03:51,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:51,580 INFO L225 Difference]: With dead ends: 58416 [2020-12-23 11:03:51,581 INFO L226 Difference]: Without dead ends: 50906 [2020-12-23 11:03:51,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23219 ImplicationChecksByTransitivity, 46.6s TimeCoverageRelationStatistics Valid=7542, Invalid=47448, Unknown=0, NotChecked=0, Total=54990 [2020-12-23 11:03:51,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50906 states. [2020-12-23 11:04:01,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50906 to 21652. [2020-12-23 11:04:01,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21652 states. [2020-12-23 11:04:01,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21652 states to 21652 states and 27698 transitions. [2020-12-23 11:04:01,839 INFO L78 Accepts]: Start accepts. Automaton has 21652 states and 27698 transitions. Word has length 102 [2020-12-23 11:04:01,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:04:01,840 INFO L481 AbstractCegarLoop]: Abstraction has 21652 states and 27698 transitions. [2020-12-23 11:04:01,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-23 11:04:01,840 INFO L276 IsEmpty]: Start isEmpty. Operand 21652 states and 27698 transitions. [2020-12-23 11:04:01,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-23 11:04:01,845 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:04:01,845 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:04:02,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 11:04:02,059 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:04:02,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:04:02,060 INFO L82 PathProgramCache]: Analyzing trace with hash 2144404502, now seen corresponding path program 1 times [2020-12-23 11:04:02,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:04:02,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533631305] [2020-12-23 11:04:02,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:04:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:04:02,412 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:04:02,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533631305] [2020-12-23 11:04:02,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301981909] [2020-12-23 11:04:02,413 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 11:04:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:04:02,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-23 11:04:02,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 11:04:02,841 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-12-23 11:04:02,842 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 11:04:03,092 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 11:04:03,099 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 11:04:03,153 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 11:04:04,789 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 303 DAG size of output: 68 [2020-12-23 11:04:05,108 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-23 11:04:05,576 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-23 11:04:06,108 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2020-12-23 11:04:06,220 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:04:06,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 11:04:06,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2020-12-23 11:04:06,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311213900] [2020-12-23 11:04:06,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-23 11:04:06,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:04:06,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-23 11:04:06,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2020-12-23 11:04:06,224 INFO L87 Difference]: Start difference. First operand 21652 states and 27698 transitions. Second operand 18 states. [2020-12-23 11:04:08,394 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-12-23 11:04:09,235 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-12-23 11:04:09,881 WARN L197 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-12-23 11:04:10,325 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 25 [2020-12-23 11:04:11,154 WARN L197 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-12-23 11:04:12,828 WARN L197 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-12-23 11:04:13,031 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-12-23 11:04:14,828 WARN L197 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-12-23 11:04:15,630 WARN L197 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 11:04:16,546 WARN L197 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 11:04:16,765 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 25 [2020-12-23 11:04:18,837 WARN L197 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-12-23 11:04:19,572 WARN L197 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-23 11:04:20,844 WARN L197 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 11:04:22,040 WARN L197 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-12-23 11:04:24,266 WARN L197 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2020-12-23 11:04:26,073 WARN L197 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 126 DAG size of output: 121 [2020-12-23 11:04:28,019 WARN L197 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 120 DAG size of output: 115 [2020-12-23 11:04:29,179 WARN L197 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-23 11:04:30,417 WARN L197 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-12-23 11:04:32,618 WARN L197 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-12-23 11:04:35,593 WARN L197 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-12-23 11:04:37,817 WARN L197 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 126 DAG size of output: 121 [2020-12-23 11:04:38,197 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 28 [2020-12-23 11:04:39,666 WARN L197 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-23 11:04:39,922 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 25 [2020-12-23 11:04:41,965 WARN L197 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2020-12-23 11:04:43,960 WARN L197 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-23 11:04:44,537 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 28 [2020-12-23 11:04:47,217 WARN L197 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-12-23 11:04:50,065 WARN L197 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2020-12-23 11:04:52,050 WARN L197 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2020-12-23 11:04:53,992 WARN L197 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-12-23 11:04:56,041 WARN L197 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-12-23 11:04:57,513 WARN L197 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-23 11:04:59,232 WARN L197 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2020-12-23 11:05:01,596 WARN L197 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-12-23 11:05:02,677 WARN L197 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-12-23 11:05:04,116 WARN L197 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-12-23 11:05:05,379 WARN L197 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-23 11:05:06,938 WARN L197 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2020-12-23 11:05:09,207 WARN L197 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2020-12-23 11:05:10,516 WARN L197 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-12-23 11:05:12,829 WARN L197 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2020-12-23 11:05:14,958 WARN L197 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2020-12-23 11:05:16,876 WARN L197 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 108 DAG size of output: 103 [2020-12-23 11:05:18,985 WARN L197 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 108 DAG size of output: 103 [2020-12-23 11:05:20,252 WARN L197 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 88