/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 13:00:20,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 13:00:20,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 13:00:20,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 13:00:20,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 13:00:20,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 13:00:20,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 13:00:20,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 13:00:20,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 13:00:20,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 13:00:20,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 13:00:20,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 13:00:20,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 13:00:20,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 13:00:20,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 13:00:20,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 13:00:20,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 13:00:20,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 13:00:20,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 13:00:20,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 13:00:20,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 13:00:20,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 13:00:20,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 13:00:20,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 13:00:20,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-15 13:00:20,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-15 13:00:20,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-15 13:00:20,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-15 13:00:20,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-15 13:00:20,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-15 13:00:20,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 13:00:20,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 13:00:20,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 13:00:20,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 13:00:20,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 13:00:20,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 13:00:20,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 13:00:20,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 13:00:20,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 13:00:20,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 13:00:20,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 13:00:20,535 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-09-15 13:00:20,561 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 13:00:20,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 13:00:20,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 13:00:20,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 13:00:20,563 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 13:00:20,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 13:00:20,564 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 13:00:20,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 13:00:20,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 13:00:20,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 13:00:20,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 13:00:20,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 13:00:20,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 13:00:20,565 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 13:00:20,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 13:00:20,566 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 13:00:20,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 13:00:20,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 13:00:20,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 13:00:20,566 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 13:00:20,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 13:00:20,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 13:00:20,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 13:00:20,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-15 13:00:20,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 13:00:20,568 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 13:00:20,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 13:00:20,568 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-15 13:00:20,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 13:00:21,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 13:00:21,034 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 13:00:21,041 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 13:00:21,043 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 13:00:21,044 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 13:00:21,045 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2020-09-15 13:00:21,140 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f777cf43/663c383ac3864573bd7a93116a5d84d3/FLAG0b2d499cc [2020-09-15 13:00:21,852 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 13:00:21,853 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2020-09-15 13:00:21,883 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f777cf43/663c383ac3864573bd7a93116a5d84d3/FLAG0b2d499cc [2020-09-15 13:00:22,050 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f777cf43/663c383ac3864573bd7a93116a5d84d3 [2020-09-15 13:00:22,063 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 13:00:22,069 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 13:00:22,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 13:00:22,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 13:00:22,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 13:00:22,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:00:22" (1/1) ... [2020-09-15 13:00:22,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b72794e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:22, skipping insertion in model container [2020-09-15 13:00:22,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:00:22" (1/1) ... [2020-09-15 13:00:22,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 13:00:22,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 13:00:22,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 13:00:23,011 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 13:00:23,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 13:00:23,523 INFO L208 MainTranslator]: Completed translation [2020-09-15 13:00:23,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:23 WrapperNode [2020-09-15 13:00:23,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 13:00:23,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 13:00:23,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 13:00:23,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 13:00:23,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:23" (1/1) ... [2020-09-15 13:00:23,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:23" (1/1) ... [2020-09-15 13:00:23,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 13:00:23,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 13:00:23,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 13:00:23,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 13:00:23,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:23" (1/1) ... [2020-09-15 13:00:23,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:23" (1/1) ... [2020-09-15 13:00:23,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:23" (1/1) ... [2020-09-15 13:00:23,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:23" (1/1) ... [2020-09-15 13:00:23,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:23" (1/1) ... [2020-09-15 13:00:23,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:23" (1/1) ... [2020-09-15 13:00:23,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:23" (1/1) ... [2020-09-15 13:00:23,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 13:00:23,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 13:00:23,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 13:00:23,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 13:00:23,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-15 13:00:23,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 13:00:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-15 13:00:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-09-15 13:00:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-15 13:00:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 13:00:23,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 13:00:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-09-15 13:00:23,814 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-09-15 13:00:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 13:00:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 13:00:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-15 13:00:23,817 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 13:00:24,568 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 13:00:24,570 INFO L295 CfgBuilder]: Removed 24 assume(true) statements. [2020-09-15 13:00:24,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:00:24 BoogieIcfgContainer [2020-09-15 13:00:24,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 13:00:24,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 13:00:24,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 13:00:24,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 13:00:24,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 01:00:22" (1/3) ... [2020-09-15 13:00:24,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b89a13e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:00:24, skipping insertion in model container [2020-09-15 13:00:24,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:23" (2/3) ... [2020-09-15 13:00:24,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b89a13e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:00:24, skipping insertion in model container [2020-09-15 13:00:24,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:00:24" (3/3) ... [2020-09-15 13:00:24,602 INFO L109 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2020-09-15 13:00:24,613 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 13:00:24,613 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-15 13:00:24,624 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-09-15 13:00:24,626 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 13:00:24,662 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,663 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,663 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,663 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,664 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,664 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,664 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,664 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,665 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,665 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,665 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,665 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,666 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,666 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,666 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,666 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,667 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,667 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,667 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,667 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,668 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,668 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,668 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,669 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,669 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,669 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,669 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,670 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,670 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,670 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,671 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,671 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,671 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,671 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,672 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,672 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,673 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,673 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,673 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,673 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,674 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,674 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,674 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,674 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,674 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,675 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,675 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,675 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,675 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,676 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,676 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,676 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,676 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,677 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,678 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,678 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,678 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,678 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,679 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,679 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,679 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,679 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,680 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,680 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,681 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,681 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,681 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,681 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,688 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,688 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,689 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,689 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,689 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,689 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,690 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,690 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,690 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,690 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,691 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,691 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,699 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,700 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,700 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,700 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,701 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,701 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,701 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,702 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,702 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,702 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,702 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,703 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:24,742 INFO L251 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-09-15 13:00:24,768 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 13:00:24,769 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 13:00:24,769 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 13:00:24,769 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-15 13:00:24,769 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 13:00:24,769 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 13:00:24,770 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 13:00:24,770 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 13:00:24,790 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 155 transitions, 332 flow [2020-09-15 13:00:24,793 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 151 places, 155 transitions, 332 flow [2020-09-15 13:00:24,876 INFO L129 PetriNetUnfolder]: 11/193 cut-off events. [2020-09-15 13:00:24,877 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-15 13:00:24,884 INFO L80 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 193 events. 11/193 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 378 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 107. Up to 4 conditions per place. [2020-09-15 13:00:24,891 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 151 places, 155 transitions, 332 flow [2020-09-15 13:00:24,957 INFO L129 PetriNetUnfolder]: 11/193 cut-off events. [2020-09-15 13:00:24,958 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-15 13:00:24,959 INFO L80 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 193 events. 11/193 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 378 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 107. Up to 4 conditions per place. [2020-09-15 13:00:24,963 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2884 [2020-09-15 13:00:24,964 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 13:00:27,420 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-15 13:00:27,444 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-15 13:00:27,453 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-15 13:00:27,470 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-15 13:00:27,471 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-09-15 13:00:27,472 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:99, output treesize:71 [2020-09-15 13:00:28,684 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-09-15 13:00:28,971 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-09-15 13:00:29,557 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-09-15 13:00:29,722 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-15 13:00:30,356 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 125 [2020-09-15 13:00:30,380 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-15 13:00:30,629 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-09-15 13:00:30,630 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-15 13:00:30,644 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-15 13:00:30,880 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-09-15 13:00:30,880 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-15 13:00:30,882 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-09-15 13:00:30,882 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:250, output treesize:222 [2020-09-15 13:00:31,102 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-09-15 13:00:32,106 WARN L193 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 128 [2020-09-15 13:00:32,136 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-15 13:00:32,555 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-09-15 13:00:32,556 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-15 13:00:32,565 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-15 13:00:32,965 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-09-15 13:00:32,966 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-15 13:00:32,968 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-09-15 13:00:32,968 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:267, output treesize:279 [2020-09-15 13:00:33,383 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-09-15 13:00:33,619 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-09-15 13:00:33,851 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-09-15 13:00:33,865 INFO L206 etLargeBlockEncoding]: Checked pairs total: 5170 [2020-09-15 13:00:33,865 INFO L214 etLargeBlockEncoding]: Total number of compositions: 162 [2020-09-15 13:00:33,870 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 40 transitions, 102 flow [2020-09-15 13:00:33,904 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 425 states. [2020-09-15 13:00:33,907 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states. [2020-09-15 13:00:33,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-09-15 13:00:33,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:33,917 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-09-15 13:00:33,917 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:33,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:33,925 INFO L82 PathProgramCache]: Analyzing trace with hash 557, now seen corresponding path program 1 times [2020-09-15 13:00:33,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:33,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582216297] [2020-09-15 13:00:33,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:34,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:34,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582216297] [2020-09-15 13:00:34,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:34,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-09-15 13:00:34,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449411811] [2020-09-15 13:00:34,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-15 13:00:34,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:34,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-15 13:00:34,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-15 13:00:34,272 INFO L87 Difference]: Start difference. First operand 425 states. Second operand 2 states. [2020-09-15 13:00:34,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:34,312 INFO L93 Difference]: Finished difference Result 423 states and 1029 transitions. [2020-09-15 13:00:34,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-15 13:00:34,314 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-09-15 13:00:34,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:34,334 INFO L225 Difference]: With dead ends: 423 [2020-09-15 13:00:34,334 INFO L226 Difference]: Without dead ends: 385 [2020-09-15 13:00:34,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-15 13:00:34,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-09-15 13:00:34,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2020-09-15 13:00:34,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-09-15 13:00:34,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 931 transitions. [2020-09-15 13:00:34,420 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 931 transitions. Word has length 1 [2020-09-15 13:00:34,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:34,421 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 931 transitions. [2020-09-15 13:00:34,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-15 13:00:34,421 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 931 transitions. [2020-09-15 13:00:34,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-09-15 13:00:34,422 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:34,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-09-15 13:00:34,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 13:00:34,422 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:34,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:34,423 INFO L82 PathProgramCache]: Analyzing trace with hash 17154767, now seen corresponding path program 1 times [2020-09-15 13:00:34,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:34,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277447988] [2020-09-15 13:00:34,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:34,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:34,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277447988] [2020-09-15 13:00:34,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:34,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 13:00:34,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781928469] [2020-09-15 13:00:34,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 13:00:34,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:34,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 13:00:34,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:00:34,697 INFO L87 Difference]: Start difference. First operand 385 states and 931 transitions. Second operand 3 states. [2020-09-15 13:00:34,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:34,817 INFO L93 Difference]: Finished difference Result 540 states and 1306 transitions. [2020-09-15 13:00:34,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 13:00:34,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-09-15 13:00:34,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:34,825 INFO L225 Difference]: With dead ends: 540 [2020-09-15 13:00:34,825 INFO L226 Difference]: Without dead ends: 540 [2020-09-15 13:00:34,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:00:34,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-09-15 13:00:34,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 444. [2020-09-15 13:00:34,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-09-15 13:00:34,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 1086 transitions. [2020-09-15 13:00:34,860 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 1086 transitions. Word has length 4 [2020-09-15 13:00:34,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:34,861 INFO L479 AbstractCegarLoop]: Abstraction has 444 states and 1086 transitions. [2020-09-15 13:00:34,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 13:00:34,861 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 1086 transitions. [2020-09-15 13:00:34,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-15 13:00:34,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:34,862 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-15 13:00:34,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 13:00:34,862 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:34,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:34,863 INFO L82 PathProgramCache]: Analyzing trace with hash -694138238, now seen corresponding path program 1 times [2020-09-15 13:00:34,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:34,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783646713] [2020-09-15 13:00:34,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:35,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:35,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783646713] [2020-09-15 13:00:35,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:35,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 13:00:35,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838411667] [2020-09-15 13:00:35,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 13:00:35,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:35,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 13:00:35,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 13:00:35,108 INFO L87 Difference]: Start difference. First operand 444 states and 1086 transitions. Second operand 4 states. [2020-09-15 13:00:35,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:35,282 INFO L93 Difference]: Finished difference Result 599 states and 1429 transitions. [2020-09-15 13:00:35,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 13:00:35,282 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-09-15 13:00:35,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:35,287 INFO L225 Difference]: With dead ends: 599 [2020-09-15 13:00:35,288 INFO L226 Difference]: Without dead ends: 514 [2020-09-15 13:00:35,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 13:00:35,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-09-15 13:00:35,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 482. [2020-09-15 13:00:35,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-09-15 13:00:35,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1195 transitions. [2020-09-15 13:00:35,322 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1195 transitions. Word has length 6 [2020-09-15 13:00:35,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:35,322 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 1195 transitions. [2020-09-15 13:00:35,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 13:00:35,323 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1195 transitions. [2020-09-15 13:00:35,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-15 13:00:35,326 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:35,326 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 13:00:35,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 13:00:35,326 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:35,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:35,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1786983460, now seen corresponding path program 1 times [2020-09-15 13:00:35,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:35,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116137103] [2020-09-15 13:00:35,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:35,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:35,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116137103] [2020-09-15 13:00:35,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:35,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 13:00:35,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378418669] [2020-09-15 13:00:35,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 13:00:35,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:35,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 13:00:35,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:00:35,483 INFO L87 Difference]: Start difference. First operand 482 states and 1195 transitions. Second operand 3 states. [2020-09-15 13:00:35,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:35,502 INFO L93 Difference]: Finished difference Result 162 states and 347 transitions. [2020-09-15 13:00:35,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 13:00:35,507 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-15 13:00:35,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:35,509 INFO L225 Difference]: With dead ends: 162 [2020-09-15 13:00:35,509 INFO L226 Difference]: Without dead ends: 162 [2020-09-15 13:00:35,509 INFO L675 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 [2020-09-15 13:00:35,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-09-15 13:00:35,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-09-15 13:00:35,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-15 13:00:35,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 347 transitions. [2020-09-15 13:00:35,519 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 347 transitions. Word has length 10 [2020-09-15 13:00:35,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:35,519 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 347 transitions. [2020-09-15 13:00:35,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 13:00:35,520 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 347 transitions. [2020-09-15 13:00:35,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:00:35,526 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:35,527 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] [2020-09-15 13:00:35,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 13:00:35,531 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:35,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:35,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1425167552, now seen corresponding path program 1 times [2020-09-15 13:00:35,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:35,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017535307] [2020-09-15 13:00:35,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:35,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:35,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017535307] [2020-09-15 13:00:35,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:35,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-15 13:00:35,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16456142] [2020-09-15 13:00:35,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 13:00:35,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:35,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 13:00:35,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-15 13:00:35,845 INFO L87 Difference]: Start difference. First operand 162 states and 347 transitions. Second operand 5 states. [2020-09-15 13:00:35,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:35,969 INFO L93 Difference]: Finished difference Result 114 states and 195 transitions. [2020-09-15 13:00:35,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-15 13:00:35,969 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-09-15 13:00:35,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:35,971 INFO L225 Difference]: With dead ends: 114 [2020-09-15 13:00:35,971 INFO L226 Difference]: Without dead ends: 114 [2020-09-15 13:00:35,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-15 13:00:35,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-15 13:00:35,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-09-15 13:00:35,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-15 13:00:35,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 195 transitions. [2020-09-15 13:00:35,975 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 195 transitions. Word has length 22 [2020-09-15 13:00:35,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:35,975 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 195 transitions. [2020-09-15 13:00:35,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 13:00:35,976 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 195 transitions. [2020-09-15 13:00:35,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:00:35,977 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:35,977 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] [2020-09-15 13:00:35,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 13:00:35,977 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:35,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:35,978 INFO L82 PathProgramCache]: Analyzing trace with hash 864306392, now seen corresponding path program 1 times [2020-09-15 13:00:35,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:35,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64339161] [2020-09-15 13:00:35,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:36,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:36,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64339161] [2020-09-15 13:00:36,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:36,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-15 13:00:36,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081304501] [2020-09-15 13:00:36,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-15 13:00:36,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:36,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-15 13:00:36,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-15 13:00:36,245 INFO L87 Difference]: Start difference. First operand 114 states and 195 transitions. Second operand 8 states. [2020-09-15 13:00:36,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:36,676 INFO L93 Difference]: Finished difference Result 132 states and 222 transitions. [2020-09-15 13:00:36,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-15 13:00:36,678 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-09-15 13:00:36,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:36,680 INFO L225 Difference]: With dead ends: 132 [2020-09-15 13:00:36,680 INFO L226 Difference]: Without dead ends: 132 [2020-09-15 13:00:36,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-09-15 13:00:36,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-09-15 13:00:36,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 120. [2020-09-15 13:00:36,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-09-15 13:00:36,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 200 transitions. [2020-09-15 13:00:36,685 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 200 transitions. Word has length 22 [2020-09-15 13:00:36,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:36,686 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 200 transitions. [2020-09-15 13:00:36,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-15 13:00:36,686 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 200 transitions. [2020-09-15 13:00:36,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:00:36,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:36,687 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] [2020-09-15 13:00:36,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-15 13:00:36,687 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:36,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:36,688 INFO L82 PathProgramCache]: Analyzing trace with hash -412491042, now seen corresponding path program 2 times [2020-09-15 13:00:36,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:36,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503173258] [2020-09-15 13:00:36,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:37,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:37,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503173258] [2020-09-15 13:00:37,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:37,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-15 13:00:37,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039415419] [2020-09-15 13:00:37,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-15 13:00:37,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:37,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-15 13:00:37,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-15 13:00:37,308 INFO L87 Difference]: Start difference. First operand 120 states and 200 transitions. Second operand 9 states. [2020-09-15 13:00:37,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:37,682 INFO L93 Difference]: Finished difference Result 160 states and 256 transitions. [2020-09-15 13:00:37,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-15 13:00:37,683 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-15 13:00:37,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:37,684 INFO L225 Difference]: With dead ends: 160 [2020-09-15 13:00:37,684 INFO L226 Difference]: Without dead ends: 160 [2020-09-15 13:00:37,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:00:37,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-15 13:00:37,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 130. [2020-09-15 13:00:37,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-09-15 13:00:37,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 210 transitions. [2020-09-15 13:00:37,691 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 210 transitions. Word has length 22 [2020-09-15 13:00:37,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:37,691 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 210 transitions. [2020-09-15 13:00:37,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-15 13:00:37,691 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 210 transitions. [2020-09-15 13:00:37,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:00:37,692 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:37,692 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] [2020-09-15 13:00:37,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-15 13:00:37,693 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:37,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:37,693 INFO L82 PathProgramCache]: Analyzing trace with hash -412491025, now seen corresponding path program 1 times [2020-09-15 13:00:37,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:37,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253314072] [2020-09-15 13:00:37,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:38,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:38,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253314072] [2020-09-15 13:00:38,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:38,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:00:38,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576928370] [2020-09-15 13:00:38,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:00:38,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:38,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:00:38,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:00:38,909 INFO L87 Difference]: Start difference. First operand 130 states and 210 transitions. Second operand 14 states. [2020-09-15 13:00:40,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:40,010 INFO L93 Difference]: Finished difference Result 146 states and 225 transitions. [2020-09-15 13:00:40,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:00:40,011 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:00:40,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:40,013 INFO L225 Difference]: With dead ends: 146 [2020-09-15 13:00:40,013 INFO L226 Difference]: Without dead ends: 131 [2020-09-15 13:00:40,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:00:40,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-09-15 13:00:40,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2020-09-15 13:00:40,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-09-15 13:00:40,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 208 transitions. [2020-09-15 13:00:40,018 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 208 transitions. Word has length 22 [2020-09-15 13:00:40,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:40,019 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 208 transitions. [2020-09-15 13:00:40,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:00:40,019 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 208 transitions. [2020-09-15 13:00:40,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:00:40,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:40,020 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] [2020-09-15 13:00:40,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-15 13:00:40,020 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:40,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:40,021 INFO L82 PathProgramCache]: Analyzing trace with hash -524474255, now seen corresponding path program 2 times [2020-09-15 13:00:40,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:40,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785424006] [2020-09-15 13:00:40,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:41,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:41,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785424006] [2020-09-15 13:00:41,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:41,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:00:41,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333002340] [2020-09-15 13:00:41,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:00:41,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:41,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:00:41,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:00:41,173 INFO L87 Difference]: Start difference. First operand 130 states and 208 transitions. Second operand 14 states. [2020-09-15 13:00:42,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:42,289 INFO L93 Difference]: Finished difference Result 144 states and 221 transitions. [2020-09-15 13:00:42,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-15 13:00:42,290 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:00:42,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:42,291 INFO L225 Difference]: With dead ends: 144 [2020-09-15 13:00:42,291 INFO L226 Difference]: Without dead ends: 131 [2020-09-15 13:00:42,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2020-09-15 13:00:42,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-09-15 13:00:42,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2020-09-15 13:00:42,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-09-15 13:00:42,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 207 transitions. [2020-09-15 13:00:42,296 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 207 transitions. Word has length 22 [2020-09-15 13:00:42,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:42,296 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 207 transitions. [2020-09-15 13:00:42,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:00:42,297 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 207 transitions. [2020-09-15 13:00:42,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:00:42,297 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:42,298 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] [2020-09-15 13:00:42,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-15 13:00:42,298 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:42,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:42,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1681973066, now seen corresponding path program 2 times [2020-09-15 13:00:42,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:42,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504027878] [2020-09-15 13:00:42,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:42,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:42,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504027878] [2020-09-15 13:00:42,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:42,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-15 13:00:42,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002101765] [2020-09-15 13:00:42,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-15 13:00:42,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:42,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-15 13:00:42,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-09-15 13:00:42,602 INFO L87 Difference]: Start difference. First operand 130 states and 207 transitions. Second operand 11 states. [2020-09-15 13:00:43,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:43,182 INFO L93 Difference]: Finished difference Result 178 states and 289 transitions. [2020-09-15 13:00:43,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:00:43,183 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2020-09-15 13:00:43,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:43,184 INFO L225 Difference]: With dead ends: 178 [2020-09-15 13:00:43,185 INFO L226 Difference]: Without dead ends: 178 [2020-09-15 13:00:43,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=220, Unknown=0, NotChecked=0, Total=342 [2020-09-15 13:00:43,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-15 13:00:43,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 138. [2020-09-15 13:00:43,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-15 13:00:43,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 224 transitions. [2020-09-15 13:00:43,191 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 224 transitions. Word has length 22 [2020-09-15 13:00:43,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:43,193 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 224 transitions. [2020-09-15 13:00:43,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-15 13:00:43,193 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 224 transitions. [2020-09-15 13:00:43,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:00:43,195 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:43,195 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] [2020-09-15 13:00:43,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-15 13:00:43,195 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:43,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:43,196 INFO L82 PathProgramCache]: Analyzing trace with hash 671772802, now seen corresponding path program 3 times [2020-09-15 13:00:43,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:43,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755638536] [2020-09-15 13:00:43,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:43,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:43,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755638536] [2020-09-15 13:00:43,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:43,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-15 13:00:43,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618144805] [2020-09-15 13:00:43,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-15 13:00:43,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:43,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-15 13:00:43,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-15 13:00:43,756 INFO L87 Difference]: Start difference. First operand 138 states and 224 transitions. Second operand 9 states. [2020-09-15 13:00:44,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:44,033 INFO L93 Difference]: Finished difference Result 171 states and 268 transitions. [2020-09-15 13:00:44,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-15 13:00:44,034 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-15 13:00:44,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:44,035 INFO L225 Difference]: With dead ends: 171 [2020-09-15 13:00:44,035 INFO L226 Difference]: Without dead ends: 171 [2020-09-15 13:00:44,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-09-15 13:00:44,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-09-15 13:00:44,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 140. [2020-09-15 13:00:44,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-15 13:00:44,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 226 transitions. [2020-09-15 13:00:44,041 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 226 transitions. Word has length 22 [2020-09-15 13:00:44,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:44,041 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 226 transitions. [2020-09-15 13:00:44,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-15 13:00:44,042 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 226 transitions. [2020-09-15 13:00:44,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:00:44,044 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:44,044 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] [2020-09-15 13:00:44,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-15 13:00:44,045 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:44,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:44,045 INFO L82 PathProgramCache]: Analyzing trace with hash 671772819, now seen corresponding path program 3 times [2020-09-15 13:00:44,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:44,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562652892] [2020-09-15 13:00:44,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:45,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:45,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562652892] [2020-09-15 13:00:45,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:45,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:00:45,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255987129] [2020-09-15 13:00:45,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:00:45,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:45,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:00:45,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:00:45,096 INFO L87 Difference]: Start difference. First operand 140 states and 226 transitions. Second operand 14 states. [2020-09-15 13:00:46,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:46,124 INFO L93 Difference]: Finished difference Result 150 states and 235 transitions. [2020-09-15 13:00:46,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-15 13:00:46,125 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:00:46,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:46,126 INFO L225 Difference]: With dead ends: 150 [2020-09-15 13:00:46,127 INFO L226 Difference]: Without dead ends: 142 [2020-09-15 13:00:46,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:00:46,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-09-15 13:00:46,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 140. [2020-09-15 13:00:46,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-15 13:00:46,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 225 transitions. [2020-09-15 13:00:46,135 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 225 transitions. Word has length 22 [2020-09-15 13:00:46,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:46,135 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 225 transitions. [2020-09-15 13:00:46,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:00:46,135 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 225 transitions. [2020-09-15 13:00:46,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:00:46,136 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:46,136 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] [2020-09-15 13:00:46,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-15 13:00:46,137 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:46,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:46,137 INFO L82 PathProgramCache]: Analyzing trace with hash -481747075, now seen corresponding path program 4 times [2020-09-15 13:00:46,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:46,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038249953] [2020-09-15 13:00:46,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:47,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:47,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038249953] [2020-09-15 13:00:47,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:47,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:00:47,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857809781] [2020-09-15 13:00:47,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:00:47,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:47,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:00:47,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:00:47,180 INFO L87 Difference]: Start difference. First operand 140 states and 225 transitions. Second operand 14 states. [2020-09-15 13:00:48,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:48,118 INFO L93 Difference]: Finished difference Result 149 states and 233 transitions. [2020-09-15 13:00:48,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:00:48,119 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:00:48,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:48,120 INFO L225 Difference]: With dead ends: 149 [2020-09-15 13:00:48,120 INFO L226 Difference]: Without dead ends: 136 [2020-09-15 13:00:48,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:00:48,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-15 13:00:48,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 134. [2020-09-15 13:00:48,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-09-15 13:00:48,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 214 transitions. [2020-09-15 13:00:48,126 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 214 transitions. Word has length 22 [2020-09-15 13:00:48,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:48,126 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 214 transitions. [2020-09-15 13:00:48,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:00:48,127 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 214 transitions. [2020-09-15 13:00:48,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:00:48,127 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:48,128 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] [2020-09-15 13:00:48,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-15 13:00:48,128 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:48,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:48,128 INFO L82 PathProgramCache]: Analyzing trace with hash 186432761, now seen corresponding path program 5 times [2020-09-15 13:00:48,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:48,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89103194] [2020-09-15 13:00:48,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:49,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:49,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89103194] [2020-09-15 13:00:49,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:49,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:00:49,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107241934] [2020-09-15 13:00:49,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:00:49,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:49,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:00:49,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:00:49,206 INFO L87 Difference]: Start difference. First operand 134 states and 214 transitions. Second operand 14 states. [2020-09-15 13:00:50,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:50,241 INFO L93 Difference]: Finished difference Result 150 states and 228 transitions. [2020-09-15 13:00:50,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-15 13:00:50,246 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:00:50,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:50,247 INFO L225 Difference]: With dead ends: 150 [2020-09-15 13:00:50,247 INFO L226 Difference]: Without dead ends: 139 [2020-09-15 13:00:50,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:00:50,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-09-15 13:00:50,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 138. [2020-09-15 13:00:50,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-15 13:00:50,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 216 transitions. [2020-09-15 13:00:50,252 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 216 transitions. Word has length 22 [2020-09-15 13:00:50,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:50,253 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 216 transitions. [2020-09-15 13:00:50,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:00:50,253 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 216 transitions. [2020-09-15 13:00:50,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:00:50,254 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:50,254 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] [2020-09-15 13:00:50,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-15 13:00:50,254 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:50,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:50,255 INFO L82 PathProgramCache]: Analyzing trace with hash 331278926, now seen corresponding path program 4 times [2020-09-15 13:00:50,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:50,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425906184] [2020-09-15 13:00:50,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:50,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:50,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425906184] [2020-09-15 13:00:50,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:50,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-15 13:00:50,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639256725] [2020-09-15 13:00:50,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-15 13:00:50,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:50,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-15 13:00:50,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-15 13:00:50,720 INFO L87 Difference]: Start difference. First operand 138 states and 216 transitions. Second operand 9 states. [2020-09-15 13:00:51,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:51,141 INFO L93 Difference]: Finished difference Result 170 states and 261 transitions. [2020-09-15 13:00:51,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-15 13:00:51,142 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-15 13:00:51,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:51,144 INFO L225 Difference]: With dead ends: 170 [2020-09-15 13:00:51,144 INFO L226 Difference]: Without dead ends: 158 [2020-09-15 13:00:51,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:00:51,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-15 13:00:51,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 126. [2020-09-15 13:00:51,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-15 13:00:51,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 202 transitions. [2020-09-15 13:00:51,149 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 202 transitions. Word has length 22 [2020-09-15 13:00:51,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:51,149 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 202 transitions. [2020-09-15 13:00:51,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-15 13:00:51,150 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 202 transitions. [2020-09-15 13:00:51,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:00:51,150 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:51,151 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] [2020-09-15 13:00:51,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-15 13:00:51,151 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:51,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:51,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1728779239, now seen corresponding path program 6 times [2020-09-15 13:00:51,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:51,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928431543] [2020-09-15 13:00:51,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:52,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:52,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928431543] [2020-09-15 13:00:52,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:52,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:00:52,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18342925] [2020-09-15 13:00:52,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:00:52,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:52,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:00:52,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:00:52,184 INFO L87 Difference]: Start difference. First operand 126 states and 202 transitions. Second operand 14 states. [2020-09-15 13:00:53,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:53,112 INFO L93 Difference]: Finished difference Result 138 states and 213 transitions. [2020-09-15 13:00:53,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-15 13:00:53,113 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:00:53,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:53,114 INFO L225 Difference]: With dead ends: 138 [2020-09-15 13:00:53,114 INFO L226 Difference]: Without dead ends: 116 [2020-09-15 13:00:53,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-09-15 13:00:53,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-09-15 13:00:53,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-09-15 13:00:53,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-09-15 13:00:53,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 185 transitions. [2020-09-15 13:00:53,118 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 185 transitions. Word has length 22 [2020-09-15 13:00:53,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:53,118 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 185 transitions. [2020-09-15 13:00:53,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:00:53,118 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 185 transitions. [2020-09-15 13:00:53,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:00:53,119 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:53,119 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] [2020-09-15 13:00:53,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-15 13:00:53,119 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:53,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:53,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1730688272, now seen corresponding path program 5 times [2020-09-15 13:00:53,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:53,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771461928] [2020-09-15 13:00:53,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:53,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:53,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771461928] [2020-09-15 13:00:53,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:53,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-15 13:00:53,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896254088] [2020-09-15 13:00:53,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-15 13:00:53,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:53,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-15 13:00:53,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-15 13:00:53,679 INFO L87 Difference]: Start difference. First operand 116 states and 185 transitions. Second operand 9 states. [2020-09-15 13:00:54,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:54,051 INFO L93 Difference]: Finished difference Result 146 states and 232 transitions. [2020-09-15 13:00:54,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-15 13:00:54,051 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-15 13:00:54,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:54,052 INFO L225 Difference]: With dead ends: 146 [2020-09-15 13:00:54,052 INFO L226 Difference]: Without dead ends: 146 [2020-09-15 13:00:54,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:00:54,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-15 13:00:54,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 140. [2020-09-15 13:00:54,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-15 13:00:54,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 226 transitions. [2020-09-15 13:00:54,058 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 226 transitions. Word has length 22 [2020-09-15 13:00:54,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:54,058 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 226 transitions. [2020-09-15 13:00:54,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-15 13:00:54,058 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 226 transitions. [2020-09-15 13:00:54,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:00:54,059 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:54,059 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] [2020-09-15 13:00:54,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-15 13:00:54,059 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:54,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:54,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1730688289, now seen corresponding path program 7 times [2020-09-15 13:00:54,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:54,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089162912] [2020-09-15 13:00:54,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:55,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:55,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089162912] [2020-09-15 13:00:55,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:55,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:00:55,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834133163] [2020-09-15 13:00:55,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:00:55,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:55,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:00:55,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:00:55,232 INFO L87 Difference]: Start difference. First operand 140 states and 226 transitions. Second operand 14 states. [2020-09-15 13:00:56,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:56,260 INFO L93 Difference]: Finished difference Result 171 states and 271 transitions. [2020-09-15 13:00:56,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:00:56,260 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:00:56,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:56,262 INFO L225 Difference]: With dead ends: 171 [2020-09-15 13:00:56,262 INFO L226 Difference]: Without dead ends: 143 [2020-09-15 13:00:56,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:00:56,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-09-15 13:00:56,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 140. [2020-09-15 13:00:56,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-15 13:00:56,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 225 transitions. [2020-09-15 13:00:56,266 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 225 transitions. Word has length 22 [2020-09-15 13:00:56,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:56,267 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 225 transitions. [2020-09-15 13:00:56,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:00:56,267 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 225 transitions. [2020-09-15 13:00:56,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:00:56,268 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:56,268 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] [2020-09-15 13:00:56,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-15 13:00:56,268 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:56,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:56,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1523655162, now seen corresponding path program 6 times [2020-09-15 13:00:56,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:56,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975169543] [2020-09-15 13:00:56,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:56,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:56,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975169543] [2020-09-15 13:00:56,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:56,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-15 13:00:56,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630365484] [2020-09-15 13:00:56,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-15 13:00:56,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:56,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-15 13:00:56,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-15 13:00:56,811 INFO L87 Difference]: Start difference. First operand 140 states and 225 transitions. Second operand 9 states. [2020-09-15 13:00:57,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:57,120 INFO L93 Difference]: Finished difference Result 151 states and 238 transitions. [2020-09-15 13:00:57,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-15 13:00:57,121 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-15 13:00:57,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:57,122 INFO L225 Difference]: With dead ends: 151 [2020-09-15 13:00:57,123 INFO L226 Difference]: Without dead ends: 151 [2020-09-15 13:00:57,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:00:57,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-09-15 13:00:57,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 109. [2020-09-15 13:00:57,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-15 13:00:57,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 177 transitions. [2020-09-15 13:00:57,127 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 177 transitions. Word has length 22 [2020-09-15 13:00:57,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:57,127 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 177 transitions. [2020-09-15 13:00:57,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-15 13:00:57,127 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 177 transitions. [2020-09-15 13:00:57,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:00:57,128 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:57,128 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] [2020-09-15 13:00:57,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-15 13:00:57,129 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:57,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:57,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1523655179, now seen corresponding path program 8 times [2020-09-15 13:00:57,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:57,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126582635] [2020-09-15 13:00:57,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:58,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:58,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126582635] [2020-09-15 13:00:58,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:58,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:00:58,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878985044] [2020-09-15 13:00:58,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:00:58,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:58,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:00:58,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:00:58,237 INFO L87 Difference]: Start difference. First operand 109 states and 177 transitions. Second operand 14 states. [2020-09-15 13:00:59,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:59,239 INFO L93 Difference]: Finished difference Result 147 states and 237 transitions. [2020-09-15 13:00:59,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:00:59,239 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:00:59,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:59,241 INFO L225 Difference]: With dead ends: 147 [2020-09-15 13:00:59,241 INFO L226 Difference]: Without dead ends: 125 [2020-09-15 13:00:59,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:00:59,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-09-15 13:00:59,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 109. [2020-09-15 13:00:59,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-15 13:00:59,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 175 transitions. [2020-09-15 13:00:59,246 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 175 transitions. Word has length 22 [2020-09-15 13:00:59,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:59,246 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 175 transitions. [2020-09-15 13:00:59,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:00:59,246 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 175 transitions. [2020-09-15 13:00:59,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:00:59,247 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:59,247 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] [2020-09-15 13:00:59,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-15 13:00:59,247 INFO L427 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:59,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:59,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1986983371, now seen corresponding path program 9 times [2020-09-15 13:00:59,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:59,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289120899] [2020-09-15 13:00:59,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:00,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:00,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289120899] [2020-09-15 13:01:00,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:00,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:00,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568286979] [2020-09-15 13:01:00,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:00,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:00,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:00,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:00,244 INFO L87 Difference]: Start difference. First operand 109 states and 175 transitions. Second operand 14 states. [2020-09-15 13:01:01,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:01,427 INFO L93 Difference]: Finished difference Result 148 states and 232 transitions. [2020-09-15 13:01:01,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-15 13:01:01,428 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:01,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:01,429 INFO L225 Difference]: With dead ends: 148 [2020-09-15 13:01:01,430 INFO L226 Difference]: Without dead ends: 134 [2020-09-15 13:01:01,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-09-15 13:01:01,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-09-15 13:01:01,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 109. [2020-09-15 13:01:01,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-15 13:01:01,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 173 transitions. [2020-09-15 13:01:01,434 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 173 transitions. Word has length 22 [2020-09-15 13:01:01,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:01,434 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 173 transitions. [2020-09-15 13:01:01,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:01,434 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 173 transitions. [2020-09-15 13:01:01,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:01,435 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:01,435 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] [2020-09-15 13:01:01,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-15 13:01:01,436 INFO L427 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:01,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:01,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1039623051, now seen corresponding path program 10 times [2020-09-15 13:01:01,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:01,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716888803] [2020-09-15 13:01:01,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:02,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:02,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716888803] [2020-09-15 13:01:02,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:02,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:02,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231822384] [2020-09-15 13:01:02,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:02,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:02,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:02,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:02,580 INFO L87 Difference]: Start difference. First operand 109 states and 173 transitions. Second operand 14 states. [2020-09-15 13:01:03,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:03,627 INFO L93 Difference]: Finished difference Result 140 states and 216 transitions. [2020-09-15 13:01:03,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-15 13:01:03,628 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:03,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:03,629 INFO L225 Difference]: With dead ends: 140 [2020-09-15 13:01:03,629 INFO L226 Difference]: Without dead ends: 124 [2020-09-15 13:01:03,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:01:03,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-15 13:01:03,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 99. [2020-09-15 13:01:03,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-15 13:01:03,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 157 transitions. [2020-09-15 13:01:03,633 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 157 transitions. Word has length 22 [2020-09-15 13:01:03,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:03,634 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 157 transitions. [2020-09-15 13:01:03,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:03,634 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 157 transitions. [2020-09-15 13:01:03,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:03,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:03,634 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] [2020-09-15 13:01:03,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-09-15 13:01:03,635 INFO L427 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:03,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:03,635 INFO L82 PathProgramCache]: Analyzing trace with hash 2100578423, now seen corresponding path program 11 times [2020-09-15 13:01:03,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:03,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922647314] [2020-09-15 13:01:03,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:04,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:04,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922647314] [2020-09-15 13:01:04,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:04,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:04,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820510700] [2020-09-15 13:01:04,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:04,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:04,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:04,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:04,722 INFO L87 Difference]: Start difference. First operand 99 states and 157 transitions. Second operand 14 states. [2020-09-15 13:01:05,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:05,758 INFO L93 Difference]: Finished difference Result 138 states and 218 transitions. [2020-09-15 13:01:05,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:01:05,759 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:05,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:05,760 INFO L225 Difference]: With dead ends: 138 [2020-09-15 13:01:05,760 INFO L226 Difference]: Without dead ends: 105 [2020-09-15 13:01:05,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:01:05,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-09-15 13:01:05,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 93. [2020-09-15 13:01:05,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-15 13:01:05,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 146 transitions. [2020-09-15 13:01:05,766 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 146 transitions. Word has length 22 [2020-09-15 13:01:05,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:05,768 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 146 transitions. [2020-09-15 13:01:05,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:05,768 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 146 transitions. [2020-09-15 13:01:05,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:05,769 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:05,769 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] [2020-09-15 13:01:05,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-09-15 13:01:05,769 INFO L427 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:05,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:05,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1068559361, now seen corresponding path program 12 times [2020-09-15 13:01:05,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:05,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398886046] [2020-09-15 13:01:05,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:06,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:06,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398886046] [2020-09-15 13:01:06,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:06,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:06,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735609818] [2020-09-15 13:01:06,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:06,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:06,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:06,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:06,950 INFO L87 Difference]: Start difference. First operand 93 states and 146 transitions. Second operand 14 states. [2020-09-15 13:01:07,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:07,998 INFO L93 Difference]: Finished difference Result 126 states and 193 transitions. [2020-09-15 13:01:07,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:01:07,999 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:07,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:08,000 INFO L225 Difference]: With dead ends: 126 [2020-09-15 13:01:08,000 INFO L226 Difference]: Without dead ends: 92 [2020-09-15 13:01:08,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:01:08,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-15 13:01:08,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 89. [2020-09-15 13:01:08,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-15 13:01:08,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 138 transitions. [2020-09-15 13:01:08,004 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 138 transitions. Word has length 22 [2020-09-15 13:01:08,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:08,004 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 138 transitions. [2020-09-15 13:01:08,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:08,004 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 138 transitions. [2020-09-15 13:01:08,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:08,005 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:08,005 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] [2020-09-15 13:01:08,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-09-15 13:01:08,005 INFO L427 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:08,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:08,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1273870831, now seen corresponding path program 13 times [2020-09-15 13:01:08,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:08,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61405377] [2020-09-15 13:01:08,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:09,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:09,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61405377] [2020-09-15 13:01:09,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:09,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:09,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263474597] [2020-09-15 13:01:09,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:09,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:09,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:09,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:09,105 INFO L87 Difference]: Start difference. First operand 89 states and 138 transitions. Second operand 14 states. [2020-09-15 13:01:10,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:10,040 INFO L93 Difference]: Finished difference Result 95 states and 143 transitions. [2020-09-15 13:01:10,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:01:10,042 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:10,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:10,043 INFO L225 Difference]: With dead ends: 95 [2020-09-15 13:01:10,043 INFO L226 Difference]: Without dead ends: 80 [2020-09-15 13:01:10,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:01:10,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-15 13:01:10,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-09-15 13:01:10,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-15 13:01:10,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 128 transitions. [2020-09-15 13:01:10,046 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 128 transitions. Word has length 22 [2020-09-15 13:01:10,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:10,046 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 128 transitions. [2020-09-15 13:01:10,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:10,047 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 128 transitions. [2020-09-15 13:01:10,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:10,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:10,047 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] [2020-09-15 13:01:10,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-09-15 13:01:10,048 INFO L427 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:10,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:10,048 INFO L82 PathProgramCache]: Analyzing trace with hash 341292095, now seen corresponding path program 14 times [2020-09-15 13:01:10,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:10,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994553372] [2020-09-15 13:01:10,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:11,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:11,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994553372] [2020-09-15 13:01:11,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:11,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:11,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29401327] [2020-09-15 13:01:11,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:11,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:11,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:11,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:11,142 INFO L87 Difference]: Start difference. First operand 80 states and 128 transitions. Second operand 14 states. [2020-09-15 13:01:12,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:12,165 INFO L93 Difference]: Finished difference Result 110 states and 172 transitions. [2020-09-15 13:01:12,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:01:12,165 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:12,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:12,166 INFO L225 Difference]: With dead ends: 110 [2020-09-15 13:01:12,166 INFO L226 Difference]: Without dead ends: 77 [2020-09-15 13:01:12,167 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:01:12,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-09-15 13:01:12,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-09-15 13:01:12,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-09-15 13:01:12,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 124 transitions. [2020-09-15 13:01:12,170 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 124 transitions. Word has length 22 [2020-09-15 13:01:12,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:12,170 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 124 transitions. [2020-09-15 13:01:12,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:12,170 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 124 transitions. [2020-09-15 13:01:12,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:12,171 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:12,171 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] [2020-09-15 13:01:12,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-09-15 13:01:12,171 INFO L427 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:12,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:12,172 INFO L82 PathProgramCache]: Analyzing trace with hash 2099874535, now seen corresponding path program 15 times [2020-09-15 13:01:12,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:12,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004780742] [2020-09-15 13:01:12,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:13,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:13,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004780742] [2020-09-15 13:01:13,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:13,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:13,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381371383] [2020-09-15 13:01:13,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:13,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:13,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:13,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:13,245 INFO L87 Difference]: Start difference. First operand 77 states and 124 transitions. Second operand 14 states. [2020-09-15 13:01:14,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:14,264 INFO L93 Difference]: Finished difference Result 111 states and 175 transitions. [2020-09-15 13:01:14,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:01:14,265 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:14,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:14,266 INFO L225 Difference]: With dead ends: 111 [2020-09-15 13:01:14,266 INFO L226 Difference]: Without dead ends: 80 [2020-09-15 13:01:14,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:01:14,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-15 13:01:14,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2020-09-15 13:01:14,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-15 13:01:14,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 127 transitions. [2020-09-15 13:01:14,269 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 127 transitions. Word has length 22 [2020-09-15 13:01:14,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:14,270 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 127 transitions. [2020-09-15 13:01:14,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:14,270 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 127 transitions. [2020-09-15 13:01:14,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:14,270 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:14,270 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] [2020-09-15 13:01:14,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-09-15 13:01:14,271 INFO L427 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:14,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:14,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1892841425, now seen corresponding path program 16 times [2020-09-15 13:01:14,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:14,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581533750] [2020-09-15 13:01:14,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:15,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:15,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581533750] [2020-09-15 13:01:15,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:15,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:15,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046636762] [2020-09-15 13:01:15,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:15,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:15,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:15,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:15,329 INFO L87 Difference]: Start difference. First operand 79 states and 127 transitions. Second operand 14 states. [2020-09-15 13:01:16,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:16,316 INFO L93 Difference]: Finished difference Result 128 states and 209 transitions. [2020-09-15 13:01:16,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:01:16,316 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:16,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:16,318 INFO L225 Difference]: With dead ends: 128 [2020-09-15 13:01:16,318 INFO L226 Difference]: Without dead ends: 103 [2020-09-15 13:01:16,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:01:16,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-09-15 13:01:16,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 87. [2020-09-15 13:01:16,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-15 13:01:16,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 141 transitions. [2020-09-15 13:01:16,321 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 141 transitions. Word has length 22 [2020-09-15 13:01:16,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:16,321 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 141 transitions. [2020-09-15 13:01:16,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:16,322 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 141 transitions. [2020-09-15 13:01:16,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:16,322 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:16,322 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] [2020-09-15 13:01:16,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-09-15 13:01:16,323 INFO L427 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:16,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:16,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1938797679, now seen corresponding path program 17 times [2020-09-15 13:01:16,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:16,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27660297] [2020-09-15 13:01:16,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:17,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:17,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27660297] [2020-09-15 13:01:17,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:17,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:17,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654777357] [2020-09-15 13:01:17,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:17,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:17,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:17,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:17,364 INFO L87 Difference]: Start difference. First operand 87 states and 141 transitions. Second operand 14 states. [2020-09-15 13:01:18,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:18,482 INFO L93 Difference]: Finished difference Result 134 states and 212 transitions. [2020-09-15 13:01:18,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-15 13:01:18,483 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:18,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:18,484 INFO L225 Difference]: With dead ends: 134 [2020-09-15 13:01:18,484 INFO L226 Difference]: Without dead ends: 117 [2020-09-15 13:01:18,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-09-15 13:01:18,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-09-15 13:01:18,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 91. [2020-09-15 13:01:18,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-09-15 13:01:18,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 147 transitions. [2020-09-15 13:01:18,488 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 147 transitions. Word has length 22 [2020-09-15 13:01:18,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:18,489 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 147 transitions. [2020-09-15 13:01:18,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:18,489 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 147 transitions. [2020-09-15 13:01:18,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:18,489 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:18,489 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] [2020-09-15 13:01:18,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-09-15 13:01:18,490 INFO L427 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:18,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:18,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1408809297, now seen corresponding path program 18 times [2020-09-15 13:01:18,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:18,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691493077] [2020-09-15 13:01:18,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:19,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:19,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691493077] [2020-09-15 13:01:19,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:19,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:19,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660013678] [2020-09-15 13:01:19,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:19,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:19,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:19,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:19,501 INFO L87 Difference]: Start difference. First operand 91 states and 147 transitions. Second operand 14 states. [2020-09-15 13:01:20,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:20,484 INFO L93 Difference]: Finished difference Result 126 states and 196 transitions. [2020-09-15 13:01:20,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-15 13:01:20,485 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:20,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:20,486 INFO L225 Difference]: With dead ends: 126 [2020-09-15 13:01:20,487 INFO L226 Difference]: Without dead ends: 107 [2020-09-15 13:01:20,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:01:20,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-09-15 13:01:20,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 83. [2020-09-15 13:01:20,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-15 13:01:20,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 133 transitions. [2020-09-15 13:01:20,490 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 133 transitions. Word has length 22 [2020-09-15 13:01:20,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:20,490 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 133 transitions. [2020-09-15 13:01:20,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:20,490 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 133 transitions. [2020-09-15 13:01:20,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:20,491 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:20,491 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] [2020-09-15 13:01:20,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-09-15 13:01:20,491 INFO L427 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:20,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:20,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1825202627, now seen corresponding path program 19 times [2020-09-15 13:01:20,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:20,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861752359] [2020-09-15 13:01:20,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:21,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:21,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861752359] [2020-09-15 13:01:21,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:21,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:21,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285367309] [2020-09-15 13:01:21,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:21,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:21,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:21,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:21,567 INFO L87 Difference]: Start difference. First operand 83 states and 133 transitions. Second operand 14 states. [2020-09-15 13:01:22,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:22,561 INFO L93 Difference]: Finished difference Result 123 states and 196 transitions. [2020-09-15 13:01:22,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:01:22,561 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:22,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:22,562 INFO L225 Difference]: With dead ends: 123 [2020-09-15 13:01:22,563 INFO L226 Difference]: Without dead ends: 87 [2020-09-15 13:01:22,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:01:22,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-09-15 13:01:22,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 77. [2020-09-15 13:01:22,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-09-15 13:01:22,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 122 transitions. [2020-09-15 13:01:22,565 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 122 transitions. Word has length 22 [2020-09-15 13:01:22,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:22,566 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 122 transitions. [2020-09-15 13:01:22,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:22,566 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 122 transitions. [2020-09-15 13:01:22,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:22,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:22,566 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] [2020-09-15 13:01:22,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-09-15 13:01:22,567 INFO L427 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:22,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:22,567 INFO L82 PathProgramCache]: Analyzing trace with hash -699373115, now seen corresponding path program 20 times [2020-09-15 13:01:22,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:22,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751352334] [2020-09-15 13:01:22,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:23,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:23,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751352334] [2020-09-15 13:01:23,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:23,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:23,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606948745] [2020-09-15 13:01:23,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:23,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:23,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:23,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:23,698 INFO L87 Difference]: Start difference. First operand 77 states and 122 transitions. Second operand 14 states. [2020-09-15 13:01:24,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:24,764 INFO L93 Difference]: Finished difference Result 108 states and 168 transitions. [2020-09-15 13:01:24,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:01:24,764 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:24,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:24,765 INFO L225 Difference]: With dead ends: 108 [2020-09-15 13:01:24,765 INFO L226 Difference]: Without dead ends: 62 [2020-09-15 13:01:24,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:01:24,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-15 13:01:24,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-15 13:01:24,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-15 13:01:24,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 98 transitions. [2020-09-15 13:01:24,768 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 98 transitions. Word has length 22 [2020-09-15 13:01:24,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:24,769 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 98 transitions. [2020-09-15 13:01:24,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:24,769 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 98 transitions. [2020-09-15 13:01:24,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:24,769 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:24,769 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] [2020-09-15 13:01:24,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-09-15 13:01:24,770 INFO L427 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:24,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:24,770 INFO L82 PathProgramCache]: Analyzing trace with hash -675636301, now seen corresponding path program 21 times [2020-09-15 13:01:24,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:24,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035506326] [2020-09-15 13:01:24,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:25,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:25,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035506326] [2020-09-15 13:01:25,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:25,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:25,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409907942] [2020-09-15 13:01:25,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:25,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:25,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:25,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:25,860 INFO L87 Difference]: Start difference. First operand 62 states and 98 transitions. Second operand 14 states. [2020-09-15 13:01:26,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:26,844 INFO L93 Difference]: Finished difference Result 92 states and 143 transitions. [2020-09-15 13:01:26,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:01:26,845 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:26,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:26,846 INFO L225 Difference]: With dead ends: 92 [2020-09-15 13:01:26,846 INFO L226 Difference]: Without dead ends: 61 [2020-09-15 13:01:26,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:01:26,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-15 13:01:26,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-09-15 13:01:26,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-15 13:01:26,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 96 transitions. [2020-09-15 13:01:26,849 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 96 transitions. Word has length 22 [2020-09-15 13:01:26,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:26,849 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 96 transitions. [2020-09-15 13:01:26,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:26,849 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 96 transitions. [2020-09-15 13:01:26,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:26,850 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:26,850 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] [2020-09-15 13:01:26,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-09-15 13:01:26,850 INFO L427 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:26,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:26,851 INFO L82 PathProgramCache]: Analyzing trace with hash -882669411, now seen corresponding path program 22 times [2020-09-15 13:01:26,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:26,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535573531] [2020-09-15 13:01:26,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:27,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:27,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535573531] [2020-09-15 13:01:27,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:27,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:27,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213015302] [2020-09-15 13:01:27,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:27,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:27,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:27,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:27,991 INFO L87 Difference]: Start difference. First operand 61 states and 96 transitions. Second operand 14 states. [2020-09-15 13:01:28,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:28,949 INFO L93 Difference]: Finished difference Result 109 states and 177 transitions. [2020-09-15 13:01:28,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:01:28,950 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:28,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:28,951 INFO L225 Difference]: With dead ends: 109 [2020-09-15 13:01:28,951 INFO L226 Difference]: Without dead ends: 84 [2020-09-15 13:01:28,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:01:28,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-09-15 13:01:28,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 69. [2020-09-15 13:01:28,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-15 13:01:28,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 110 transitions. [2020-09-15 13:01:28,953 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 110 transitions. Word has length 22 [2020-09-15 13:01:28,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:28,954 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 110 transitions. [2020-09-15 13:01:28,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:28,954 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 110 transitions. [2020-09-15 13:01:28,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:28,954 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:28,954 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] [2020-09-15 13:01:28,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-09-15 13:01:28,955 INFO L427 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:28,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:28,955 INFO L82 PathProgramCache]: Analyzing trace with hash -419341219, now seen corresponding path program 23 times [2020-09-15 13:01:28,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:28,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786467744] [2020-09-15 13:01:28,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:30,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:30,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786467744] [2020-09-15 13:01:30,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:30,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:30,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161730338] [2020-09-15 13:01:30,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:30,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:30,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:30,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:30,018 INFO L87 Difference]: Start difference. First operand 69 states and 110 transitions. Second operand 14 states. [2020-09-15 13:01:31,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:31,065 INFO L93 Difference]: Finished difference Result 115 states and 180 transitions. [2020-09-15 13:01:31,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-15 13:01:31,066 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:31,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:31,067 INFO L225 Difference]: With dead ends: 115 [2020-09-15 13:01:31,067 INFO L226 Difference]: Without dead ends: 98 [2020-09-15 13:01:31,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-09-15 13:01:31,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-15 13:01:31,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 73. [2020-09-15 13:01:31,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-15 13:01:31,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 116 transitions. [2020-09-15 13:01:31,070 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 116 transitions. Word has length 22 [2020-09-15 13:01:31,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:31,070 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 116 transitions. [2020-09-15 13:01:31,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:31,071 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 116 transitions. [2020-09-15 13:01:31,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:31,071 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:31,071 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] [2020-09-15 13:01:31,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-09-15 13:01:31,071 INFO L427 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:31,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:31,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1366701539, now seen corresponding path program 24 times [2020-09-15 13:01:31,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:31,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374847031] [2020-09-15 13:01:31,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:32,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:32,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374847031] [2020-09-15 13:01:32,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:32,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:32,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990555554] [2020-09-15 13:01:32,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:32,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:32,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:32,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:32,082 INFO L87 Difference]: Start difference. First operand 73 states and 116 transitions. Second operand 14 states. [2020-09-15 13:01:32,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:33,000 INFO L93 Difference]: Finished difference Result 107 states and 164 transitions. [2020-09-15 13:01:33,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-15 13:01:33,001 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:33,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:33,002 INFO L225 Difference]: With dead ends: 107 [2020-09-15 13:01:33,002 INFO L226 Difference]: Without dead ends: 88 [2020-09-15 13:01:33,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:01:33,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-15 13:01:33,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 65. [2020-09-15 13:01:33,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-15 13:01:33,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 102 transitions. [2020-09-15 13:01:33,004 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 102 transitions. Word has length 22 [2020-09-15 13:01:33,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:33,005 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 102 transitions. [2020-09-15 13:01:33,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:33,005 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 102 transitions. [2020-09-15 13:01:33,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:33,005 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:33,005 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] [2020-09-15 13:01:33,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-09-15 13:01:33,006 INFO L427 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:33,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:33,006 INFO L82 PathProgramCache]: Analyzing trace with hash -305746167, now seen corresponding path program 25 times [2020-09-15 13:01:33,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:33,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136336268] [2020-09-15 13:01:33,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:34,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:34,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136336268] [2020-09-15 13:01:34,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:34,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:34,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842436222] [2020-09-15 13:01:34,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:34,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:34,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:34,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:34,120 INFO L87 Difference]: Start difference. First operand 65 states and 102 transitions. Second operand 14 states. [2020-09-15 13:01:35,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:35,097 INFO L93 Difference]: Finished difference Result 95 states and 147 transitions. [2020-09-15 13:01:35,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:01:35,098 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:35,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:35,098 INFO L225 Difference]: With dead ends: 95 [2020-09-15 13:01:35,098 INFO L226 Difference]: Without dead ends: 59 [2020-09-15 13:01:35,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:01:35,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-15 13:01:35,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-15 13:01:35,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-15 13:01:35,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 92 transitions. [2020-09-15 13:01:35,102 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 92 transitions. Word has length 22 [2020-09-15 13:01:35,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:35,102 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 92 transitions. [2020-09-15 13:01:35,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:35,102 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 92 transitions. [2020-09-15 13:01:35,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:35,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:35,103 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] [2020-09-15 13:01:35,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-09-15 13:01:35,103 INFO L427 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:35,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:35,104 INFO L82 PathProgramCache]: Analyzing trace with hash -2008695741, now seen corresponding path program 26 times [2020-09-15 13:01:35,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:35,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783272608] [2020-09-15 13:01:35,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:36,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:36,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783272608] [2020-09-15 13:01:36,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:36,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:36,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249998460] [2020-09-15 13:01:36,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:36,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:36,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:36,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:36,166 INFO L87 Difference]: Start difference. First operand 59 states and 92 transitions. Second operand 14 states. [2020-09-15 13:01:37,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:37,275 INFO L93 Difference]: Finished difference Result 88 states and 136 transitions. [2020-09-15 13:01:37,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:01:37,276 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:37,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:37,277 INFO L225 Difference]: With dead ends: 88 [2020-09-15 13:01:37,277 INFO L226 Difference]: Without dead ends: 63 [2020-09-15 13:01:37,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:01:37,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-15 13:01:37,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2020-09-15 13:01:37,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-15 13:01:37,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 90 transitions. [2020-09-15 13:01:37,279 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 90 transitions. Word has length 22 [2020-09-15 13:01:37,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:37,279 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 90 transitions. [2020-09-15 13:01:37,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:37,279 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 90 transitions. [2020-09-15 13:01:37,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:37,280 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:37,280 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] [2020-09-15 13:01:37,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-09-15 13:01:37,280 INFO L427 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:37,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:37,281 INFO L82 PathProgramCache]: Analyzing trace with hash 287585121, now seen corresponding path program 27 times [2020-09-15 13:01:37,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:37,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909381469] [2020-09-15 13:01:37,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:38,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:38,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909381469] [2020-09-15 13:01:38,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:38,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:38,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573153509] [2020-09-15 13:01:38,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:38,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:38,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:38,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:38,327 INFO L87 Difference]: Start difference. First operand 59 states and 90 transitions. Second operand 14 states. [2020-09-15 13:01:39,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:39,469 INFO L93 Difference]: Finished difference Result 85 states and 125 transitions. [2020-09-15 13:01:39,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-15 13:01:39,470 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:39,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:39,470 INFO L225 Difference]: With dead ends: 85 [2020-09-15 13:01:39,471 INFO L226 Difference]: Without dead ends: 68 [2020-09-15 13:01:39,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-09-15 13:01:39,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-15 13:01:39,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 59. [2020-09-15 13:01:39,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-15 13:01:39,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 88 transitions. [2020-09-15 13:01:39,473 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 88 transitions. Word has length 22 [2020-09-15 13:01:39,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:39,473 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 88 transitions. [2020-09-15 13:01:39,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:39,474 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 88 transitions. [2020-09-15 13:01:39,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:39,474 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:39,474 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] [2020-09-15 13:01:39,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-09-15 13:01:39,474 INFO L427 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:39,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:39,476 INFO L82 PathProgramCache]: Analyzing trace with hash -659775199, now seen corresponding path program 28 times [2020-09-15 13:01:39,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:39,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289868703] [2020-09-15 13:01:39,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:40,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:40,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289868703] [2020-09-15 13:01:40,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:40,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:40,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993065958] [2020-09-15 13:01:40,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:40,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:40,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:40,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:40,484 INFO L87 Difference]: Start difference. First operand 59 states and 88 transitions. Second operand 14 states. [2020-09-15 13:01:41,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:41,440 INFO L93 Difference]: Finished difference Result 77 states and 109 transitions. [2020-09-15 13:01:41,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-15 13:01:41,441 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:41,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:41,442 INFO L225 Difference]: With dead ends: 77 [2020-09-15 13:01:41,442 INFO L226 Difference]: Without dead ends: 58 [2020-09-15 13:01:41,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:01:41,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-15 13:01:41,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 49. [2020-09-15 13:01:41,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-15 13:01:41,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 72 transitions. [2020-09-15 13:01:41,445 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 72 transitions. Word has length 22 [2020-09-15 13:01:41,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:41,445 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 72 transitions. [2020-09-15 13:01:41,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:41,445 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 72 transitions. [2020-09-15 13:01:41,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:01:41,445 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:01:41,445 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] [2020-09-15 13:01:41,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-09-15 13:01:41,446 INFO L427 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:01:41,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:01:41,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1650897763, now seen corresponding path program 29 times [2020-09-15 13:01:41,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:01:41,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737307333] [2020-09-15 13:01:41,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:01:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:01:42,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:01:42,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737307333] [2020-09-15 13:01:42,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:01:42,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-15 13:01:42,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802074306] [2020-09-15 13:01:42,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-15 13:01:42,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:01:42,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-15 13:01:42,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-15 13:01:42,483 INFO L87 Difference]: Start difference. First operand 49 states and 72 transitions. Second operand 14 states. [2020-09-15 13:01:43,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:01:43,337 INFO L93 Difference]: Finished difference Result 48 states and 71 transitions. [2020-09-15 13:01:43,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-15 13:01:43,337 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-15 13:01:43,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:01:43,337 INFO L225 Difference]: With dead ends: 48 [2020-09-15 13:01:43,338 INFO L226 Difference]: Without dead ends: 0 [2020-09-15 13:01:43,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-09-15 13:01:43,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-15 13:01:43,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-15 13:01:43,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-15 13:01:43,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-15 13:01:43,339 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-09-15 13:01:43,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:01:43,339 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-15 13:01:43,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-15 13:01:43,339 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-15 13:01:43,339 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-15 13:01:43,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-09-15 13:01:43,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 01:01:43 BasicIcfg [2020-09-15 13:01:43,344 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 13:01:43,346 INFO L168 Benchmark]: Toolchain (without parser) took 81280.86 ms. Allocated memory was 140.0 MB in the beginning and 672.7 MB in the end (delta: 532.7 MB). Free memory was 100.0 MB in the beginning and 155.7 MB in the end (delta: -55.7 MB). Peak memory consumption was 477.0 MB. Max. memory is 7.1 GB. [2020-09-15 13:01:43,346 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-09-15 13:01:43,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1457.17 ms. Allocated memory was 140.0 MB in the beginning and 238.0 MB in the end (delta: 98.0 MB). Free memory was 99.4 MB in the beginning and 172.9 MB in the end (delta: -73.5 MB). Peak memory consumption was 77.8 MB. Max. memory is 7.1 GB. [2020-09-15 13:01:43,347 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.92 ms. Allocated memory is still 238.0 MB. Free memory was 171.5 MB in the beginning and 168.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-15 13:01:43,347 INFO L168 Benchmark]: Boogie Preprocessor took 54.85 ms. Allocated memory is still 238.0 MB. Free memory was 168.5 MB in the beginning and 165.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-15 13:01:43,347 INFO L168 Benchmark]: RCFGBuilder took 870.84 ms. Allocated memory is still 238.0 MB. Free memory was 165.5 MB in the beginning and 118.0 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. [2020-09-15 13:01:43,348 INFO L168 Benchmark]: TraceAbstraction took 78756.52 ms. Allocated memory was 238.0 MB in the beginning and 672.7 MB in the end (delta: 434.6 MB). Free memory was 118.0 MB in the beginning and 155.7 MB in the end (delta: -37.8 MB). Peak memory consumption was 396.9 MB. Max. memory is 7.1 GB. [2020-09-15 13:01:43,350 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1457.17 ms. Allocated memory was 140.0 MB in the beginning and 238.0 MB in the end (delta: 98.0 MB). Free memory was 99.4 MB in the beginning and 172.9 MB in the end (delta: -73.5 MB). Peak memory consumption was 77.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 130.92 ms. Allocated memory is still 238.0 MB. Free memory was 171.5 MB in the beginning and 168.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.85 ms. Allocated memory is still 238.0 MB. Free memory was 168.5 MB in the beginning and 165.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 870.84 ms. Allocated memory is still 238.0 MB. Free memory was 165.5 MB in the beginning and 118.0 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 78756.52 ms. Allocated memory was 238.0 MB in the beginning and 672.7 MB in the end (delta: 434.6 MB). Free memory was 118.0 MB in the beginning and 155.7 MB in the end (delta: -37.8 MB). Peak memory consumption was 396.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 9.0s, 151 ProgramPointsBefore, 41 ProgramPointsAfterwards, 155 TransitionsBefore, 40 TransitionsAfterwards, 2884 CoEnabledTransitionPairs, 8 FixpointIterations, 87 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 17 ConcurrentYvCompositions, 5 ChoiceCompositions, 1453 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 5170 CheckedPairsTotal, 162 TotalNumberOfCompositions - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 130 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 78.5s, OverallIterations: 41, TraceHistogramMax: 1, AutomataDifference: 32.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.1s, HoareTripleCheckerStatistics: 872 SDtfs, 1670 SDslu, 4159 SDs, 0 SdLazy, 10710 SolverSat, 860 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 751 GetRequests, 25 SyntacticMatches, 72 SemanticMatches, 654 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1344 ImplicationChecksByTransitivity, 39.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=482occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 41 MinimizatonAttempts, 574 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 33.4s InterpolantComputationTime, 835 NumberOfCodeBlocks, 835 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 794 ConstructedInterpolants, 0 QuantifiedInterpolants, 396592 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 41 InterpolantComputations, 41 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...