/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:06:01,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:06:01,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:06:01,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:06:01,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:06:01,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:06:01,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:06:01,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:06:01,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:06:01,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:06:01,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:06:01,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:06:01,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:06:01,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:06:01,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:06:01,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:06:01,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:06:01,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:06:01,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:06:01,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:06:01,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:06:01,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:06:01,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:06:01,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:06:01,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 22:06:01,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:06:01,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:06:01,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:06:01,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:06:01,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:06:01,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:06:01,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:06:01,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:06:01,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:06:01,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:06:01,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:06:01,753 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 22:06:01,797 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:06:01,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:06:01,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:06:01,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:06:01,798 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:06:01,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:06:01,799 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:06:01,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:06:01,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:06:01,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:06:01,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:06:01,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:06:01,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:06:01,803 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:06:01,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:06:01,803 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:06:01,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:06:01,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:06:01,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:06:01,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:06:01,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:06:01,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:06:01,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:06:01,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:06:01,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:06:01,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:06:01,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:06:01,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:06:01,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:06:01,806 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:06:02,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:06:02,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:06:02,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:06:02,098 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:06:02,099 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:06:02,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2020-10-21 22:06:02,159 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7940a1f1/cd55f85923194bb39456d2c49fb46089/FLAG20ecb73f8 [2020-10-21 22:06:02,729 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:06:02,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2020-10-21 22:06:02,763 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7940a1f1/cd55f85923194bb39456d2c49fb46089/FLAG20ecb73f8 [2020-10-21 22:06:02,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7940a1f1/cd55f85923194bb39456d2c49fb46089 [2020-10-21 22:06:02,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:06:02,988 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:06:02,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:06:02,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:06:02,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:06:02,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:06:02" (1/1) ... [2020-10-21 22:06:02,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61525b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:02, skipping insertion in model container [2020-10-21 22:06:02,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:06:02" (1/1) ... [2020-10-21 22:06:03,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:06:03,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:06:03,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:06:03,882 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:06:03,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:06:04,372 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:06:04,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:04 WrapperNode [2020-10-21 22:06:04,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:06:04,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:06:04,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:06:04,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:06:04,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:04" (1/1) ... [2020-10-21 22:06:04,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:04" (1/1) ... [2020-10-21 22:06:04,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:06:04,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:06:04,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:06:04,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:06:04,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:04" (1/1) ... [2020-10-21 22:06:04,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:04" (1/1) ... [2020-10-21 22:06:04,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:04" (1/1) ... [2020-10-21 22:06:04,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:04" (1/1) ... [2020-10-21 22:06:04,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:04" (1/1) ... [2020-10-21 22:06:04,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:04" (1/1) ... [2020-10-21 22:06:04,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:04" (1/1) ... [2020-10-21 22:06:04,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:06:04,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:06:04,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:06:04,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:06:04,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-10-21 22:06:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:06:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 22:06:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 22:06:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-21 22:06:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:06:04,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:06:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-10-21 22:06:04,583 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-10-21 22:06:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:06:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:06:04,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:06:04,586 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:06:05,274 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:06:05,274 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-10-21 22:06:05,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:06:05 BoogieIcfgContainer [2020-10-21 22:06:05,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:06:05,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:06:05,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:06:05,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:06:05,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:06:02" (1/3) ... [2020-10-21 22:06:05,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620e543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:06:05, skipping insertion in model container [2020-10-21 22:06:05,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:06:04" (2/3) ... [2020-10-21 22:06:05,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620e543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:06:05, skipping insertion in model container [2020-10-21 22:06:05,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:06:05" (3/3) ... [2020-10-21 22:06:05,285 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2020-10-21 22:06:05,297 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:06:05,297 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:06:05,305 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-21 22:06:05,305 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:06:05,340 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,340 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,340 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,341 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,341 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,341 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,341 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,342 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,342 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,342 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,342 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,343 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,343 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,343 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,343 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,343 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,344 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,344 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,344 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,344 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,344 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,345 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,345 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,345 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,346 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,346 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,346 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,346 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,346 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,347 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,347 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,347 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,348 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,348 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,348 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,348 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,349 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,349 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,349 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,349 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,349 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,350 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,350 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,350 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,350 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,352 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,353 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,353 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,353 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,354 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,354 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,354 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,354 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,354 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,355 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,355 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,355 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,356 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,356 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,360 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,360 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,360 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,361 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,361 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,361 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,361 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,362 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,362 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,362 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,362 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,362 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,371 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,371 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,371 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,372 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,372 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,372 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,372 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,373 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,373 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,373 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,373 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,373 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,385 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 22:06:05,399 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-21 22:06:05,417 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:06:05,417 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:06:05,418 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:06:05,418 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:06:05,418 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:06:05,418 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:06:05,418 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:06:05,418 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:06:05,436 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:06:05,438 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 189 transitions, 400 flow [2020-10-21 22:06:05,440 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 189 transitions, 400 flow [2020-10-21 22:06:05,442 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 179 places, 189 transitions, 400 flow [2020-10-21 22:06:05,546 INFO L129 PetriNetUnfolder]: 19/237 cut-off events. [2020-10-21 22:06:05,546 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-21 22:06:05,552 INFO L80 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 237 events. 19/237 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 508 event pairs, 0 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 131. Up to 4 conditions per place. [2020-10-21 22:06:05,558 INFO L116 LiptonReduction]: Number of co-enabled transitions 3444 [2020-10-21 22:06:06,232 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:06,251 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:06,255 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:06,267 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:06,269 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:06,269 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:95, output treesize:67 [2020-10-21 22:06:06,640 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:06,664 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:06,668 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:06,686 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:06,687 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:06,688 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:112 [2020-10-21 22:06:06,700 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:06,721 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:06,725 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:06,742 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:06,744 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:06,744 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:112 [2020-10-21 22:06:08,948 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:08,973 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:08,978 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:09,002 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:09,004 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:09,004 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:112 [2020-10-21 22:06:09,017 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:09,040 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:09,043 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:09,061 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:09,062 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:09,063 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:112 [2020-10-21 22:06:11,161 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:11,179 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:11,189 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:11,211 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:11,212 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:11,213 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:112 [2020-10-21 22:06:11,228 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:11,246 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:11,252 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:11,270 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:11,271 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:11,272 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:112 [2020-10-21 22:06:13,512 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:13,530 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:13,536 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:13,550 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:13,552 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:13,552 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:112, output treesize:114 [2020-10-21 22:06:13,566 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:13,586 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:13,593 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:13,610 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:13,611 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:13,612 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:114, output treesize:116 [2020-10-21 22:06:15,832 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:15,857 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:15,861 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:15,883 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:15,885 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:15,885 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:98, output treesize:100 [2020-10-21 22:06:15,896 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:15,913 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:15,916 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:15,939 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:15,940 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:15,940 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:102 [2020-10-21 22:06:18,994 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:19,037 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:19,041 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:19,076 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:19,077 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:19,078 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:114, output treesize:116 [2020-10-21 22:06:19,090 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:19,117 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:19,121 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:19,140 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:19,141 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:19,141 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:112, output treesize:114 [2020-10-21 22:06:21,400 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:21,421 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:21,425 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:21,442 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:21,443 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:21,444 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:114, output treesize:116 [2020-10-21 22:06:21,452 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:21,474 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:21,477 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:21,496 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:21,497 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:21,497 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:114, output treesize:116 [2020-10-21 22:06:23,511 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:23,531 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:23,534 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:23,554 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:23,555 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:23,556 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:112 [2020-10-21 22:06:23,574 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:23,597 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:23,600 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:23,614 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:23,615 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:23,616 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:112 [2020-10-21 22:06:25,831 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-21 22:06:26,337 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2020-10-21 22:06:26,513 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:26,535 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:26,537 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:26,552 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:26,553 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:26,553 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:74 [2020-10-21 22:06:26,800 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2020-10-21 22:06:26,914 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-21 22:06:27,858 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 135 [2020-10-21 22:06:28,107 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-21 22:06:28,242 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-10-21 22:06:28,396 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-21 22:06:29,961 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 168 DAG size of output: 164 [2020-10-21 22:06:29,992 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:30,655 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-21 22:06:30,656 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:30,684 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:06:31,147 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-21 22:06:31,148 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:06:31,149 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. [2020-10-21 22:06:31,149 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:350, output treesize:362 [2020-10-21 22:06:31,635 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-21 22:06:32,348 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-21 22:06:32,723 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-21 22:06:32,747 INFO L131 LiptonReduction]: Checked pairs total: 7933 [2020-10-21 22:06:32,747 INFO L133 LiptonReduction]: Total number of compositions: 237 [2020-10-21 22:06:32,753 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 40 transitions, 102 flow [2020-10-21 22:06:32,796 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 425 states. [2020-10-21 22:06:32,799 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states. [2020-10-21 22:06:32,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-10-21 22:06:32,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:32,809 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-10-21 22:06:32,810 INFO L429 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]=== [2020-10-21 22:06:32,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:32,815 INFO L82 PathProgramCache]: Analyzing trace with hash 723, now seen corresponding path program 1 times [2020-10-21 22:06:32,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:32,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352959444] [2020-10-21 22:06:32,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:33,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:33,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352959444] [2020-10-21 22:06:33,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:33,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-10-21 22:06:33,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683527625] [2020-10-21 22:06:33,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 22:06:33,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:33,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 22:06:33,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:06:33,098 INFO L87 Difference]: Start difference. First operand 425 states. Second operand 2 states. [2020-10-21 22:06:33,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:33,135 INFO L93 Difference]: Finished difference Result 423 states and 1029 transitions. [2020-10-21 22:06:33,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 22:06:33,136 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-10-21 22:06:33,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:33,153 INFO L225 Difference]: With dead ends: 423 [2020-10-21 22:06:33,154 INFO L226 Difference]: Without dead ends: 385 [2020-10-21 22:06:33,155 INFO L677 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 [2020-10-21 22:06:33,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-10-21 22:06:33,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2020-10-21 22:06:33,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-10-21 22:06:33,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 931 transitions. [2020-10-21 22:06:33,262 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 931 transitions. Word has length 1 [2020-10-21 22:06:33,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:33,262 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 931 transitions. [2020-10-21 22:06:33,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 22:06:33,262 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 931 transitions. [2020-10-21 22:06:33,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:06:33,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:33,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:06:33,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:06:33,264 INFO L429 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]=== [2020-10-21 22:06:33,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:33,264 INFO L82 PathProgramCache]: Analyzing trace with hash 22064617, now seen corresponding path program 1 times [2020-10-21 22:06:33,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:33,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100673252] [2020-10-21 22:06:33,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:33,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:33,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100673252] [2020-10-21 22:06:33,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:33,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:06:33,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106868804] [2020-10-21 22:06:33,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:06:33,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:33,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:06:33,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:33,523 INFO L87 Difference]: Start difference. First operand 385 states and 931 transitions. Second operand 3 states. [2020-10-21 22:06:33,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:33,623 INFO L93 Difference]: Finished difference Result 540 states and 1306 transitions. [2020-10-21 22:06:33,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:06:33,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:06:33,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:33,630 INFO L225 Difference]: With dead ends: 540 [2020-10-21 22:06:33,631 INFO L226 Difference]: Without dead ends: 540 [2020-10-21 22:06:33,631 INFO L677 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 [2020-10-21 22:06:33,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-10-21 22:06:33,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 444. [2020-10-21 22:06:33,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-21 22:06:33,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 1086 transitions. [2020-10-21 22:06:33,661 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 1086 transitions. Word has length 4 [2020-10-21 22:06:33,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:33,661 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 1086 transitions. [2020-10-21 22:06:33,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:06:33,662 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 1086 transitions. [2020-10-21 22:06:33,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 22:06:33,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:33,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-21 22:06:33,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:06:33,663 INFO L429 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]=== [2020-10-21 22:06:33,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:33,663 INFO L82 PathProgramCache]: Analyzing trace with hash -270739087, now seen corresponding path program 1 times [2020-10-21 22:06:33,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:33,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406383379] [2020-10-21 22:06:33,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:33,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:33,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406383379] [2020-10-21 22:06:33,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:33,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:06:33,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324705507] [2020-10-21 22:06:33,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:06:33,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:33,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:06:33,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:06:33,760 INFO L87 Difference]: Start difference. First operand 444 states and 1086 transitions. Second operand 5 states. [2020-10-21 22:06:33,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:33,963 INFO L93 Difference]: Finished difference Result 600 states and 1430 transitions. [2020-10-21 22:06:33,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:06:33,964 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2020-10-21 22:06:33,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:33,969 INFO L225 Difference]: With dead ends: 600 [2020-10-21 22:06:33,971 INFO L226 Difference]: Without dead ends: 514 [2020-10-21 22:06:33,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-21 22:06:33,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-21 22:06:33,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 482. [2020-10-21 22:06:33,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-10-21 22:06:33,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1195 transitions. [2020-10-21 22:06:33,996 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1195 transitions. Word has length 6 [2020-10-21 22:06:33,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:33,996 INFO L481 AbstractCegarLoop]: Abstraction has 482 states and 1195 transitions. [2020-10-21 22:06:33,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:06:33,997 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1195 transitions. [2020-10-21 22:06:34,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 22:06:34,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:34,002 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:34,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:06:34,003 INFO L429 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]=== [2020-10-21 22:06:34,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:34,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1711454574, now seen corresponding path program 1 times [2020-10-21 22:06:34,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:34,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199743731] [2020-10-21 22:06:34,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:34,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:34,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199743731] [2020-10-21 22:06:34,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:34,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:06:34,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817145344] [2020-10-21 22:06:34,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:06:34,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:34,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:06:34,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:34,105 INFO L87 Difference]: Start difference. First operand 482 states and 1195 transitions. Second operand 3 states. [2020-10-21 22:06:34,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:34,116 INFO L93 Difference]: Finished difference Result 162 states and 347 transitions. [2020-10-21 22:06:34,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:06:34,116 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-21 22:06:34,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:34,117 INFO L225 Difference]: With dead ends: 162 [2020-10-21 22:06:34,118 INFO L226 Difference]: Without dead ends: 162 [2020-10-21 22:06:34,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:34,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-21 22:06:34,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-10-21 22:06:34,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-21 22:06:34,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 347 transitions. [2020-10-21 22:06:34,123 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 347 transitions. Word has length 10 [2020-10-21 22:06:34,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:34,124 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 347 transitions. [2020-10-21 22:06:34,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:06:34,124 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 347 transitions. [2020-10-21 22:06:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:34,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:34,133 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] [2020-10-21 22:06:34,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:06:34,133 INFO L429 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]=== [2020-10-21 22:06:34,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:34,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1613525791, now seen corresponding path program 1 times [2020-10-21 22:06:34,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:34,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791622406] [2020-10-21 22:06:34,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:34,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:34,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791622406] [2020-10-21 22:06:34,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:34,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-21 22:06:34,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150468557] [2020-10-21 22:06:34,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 22:06:34,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:34,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 22:06:34,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-21 22:06:34,404 INFO L87 Difference]: Start difference. First operand 162 states and 347 transitions. Second operand 9 states. [2020-10-21 22:06:34,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:34,750 INFO L93 Difference]: Finished difference Result 194 states and 403 transitions. [2020-10-21 22:06:34,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:06:34,751 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-21 22:06:34,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:34,752 INFO L225 Difference]: With dead ends: 194 [2020-10-21 22:06:34,752 INFO L226 Difference]: Without dead ends: 194 [2020-10-21 22:06:34,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-10-21 22:06:34,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-21 22:06:34,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 186. [2020-10-21 22:06:34,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-21 22:06:34,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 389 transitions. [2020-10-21 22:06:34,760 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 389 transitions. Word has length 22 [2020-10-21 22:06:34,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:34,760 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 389 transitions. [2020-10-21 22:06:34,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 22:06:34,760 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 389 transitions. [2020-10-21 22:06:34,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:34,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:34,762 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] [2020-10-21 22:06:34,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:06:34,762 INFO L429 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]=== [2020-10-21 22:06:34,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:34,762 INFO L82 PathProgramCache]: Analyzing trace with hash -721777329, now seen corresponding path program 1 times [2020-10-21 22:06:34,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:34,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549313200] [2020-10-21 22:06:34,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:34,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549313200] [2020-10-21 22:06:34,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:34,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-21 22:06:34,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704694391] [2020-10-21 22:06:34,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:06:34,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:34,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:06:34,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:06:34,988 INFO L87 Difference]: Start difference. First operand 186 states and 389 transitions. Second operand 6 states. [2020-10-21 22:06:35,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:35,091 INFO L93 Difference]: Finished difference Result 226 states and 457 transitions. [2020-10-21 22:06:35,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:06:35,092 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-21 22:06:35,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:35,094 INFO L225 Difference]: With dead ends: 226 [2020-10-21 22:06:35,094 INFO L226 Difference]: Without dead ends: 226 [2020-10-21 22:06:35,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:06:35,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-21 22:06:35,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 198. [2020-10-21 22:06:35,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-21 22:06:35,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 409 transitions. [2020-10-21 22:06:35,102 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 409 transitions. Word has length 22 [2020-10-21 22:06:35,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:35,102 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 409 transitions. [2020-10-21 22:06:35,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 22:06:35,103 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 409 transitions. [2020-10-21 22:06:35,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:35,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:35,104 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] [2020-10-21 22:06:35,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 22:06:35,104 INFO L429 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]=== [2020-10-21 22:06:35,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:35,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1148795979, now seen corresponding path program 2 times [2020-10-21 22:06:35,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:35,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886229479] [2020-10-21 22:06:35,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:36,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:36,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886229479] [2020-10-21 22:06:36,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:36,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:06:36,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403545717] [2020-10-21 22:06:36,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:06:36,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:36,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:06:36,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:06:36,054 INFO L87 Difference]: Start difference. First operand 198 states and 409 transitions. Second operand 14 states. [2020-10-21 22:06:37,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:37,034 INFO L93 Difference]: Finished difference Result 227 states and 452 transitions. [2020-10-21 22:06:37,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 22:06:37,035 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:06:37,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:37,040 INFO L225 Difference]: With dead ends: 227 [2020-10-21 22:06:37,040 INFO L226 Difference]: Without dead ends: 227 [2020-10-21 22:06:37,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:06:37,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-10-21 22:06:37,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 226. [2020-10-21 22:06:37,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-21 22:06:37,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 452 transitions. [2020-10-21 22:06:37,051 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 452 transitions. Word has length 22 [2020-10-21 22:06:37,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:37,051 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 452 transitions. [2020-10-21 22:06:37,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:06:37,051 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 452 transitions. [2020-10-21 22:06:37,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:37,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:37,052 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] [2020-10-21 22:06:37,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 22:06:37,053 INFO L429 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]=== [2020-10-21 22:06:37,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:37,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1148795934, now seen corresponding path program 1 times [2020-10-21 22:06:37,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:37,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107996704] [2020-10-21 22:06:37,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:37,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:37,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107996704] [2020-10-21 22:06:37,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:37,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-21 22:06:37,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010410703] [2020-10-21 22:06:37,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 22:06:37,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:37,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 22:06:37,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-21 22:06:37,387 INFO L87 Difference]: Start difference. First operand 226 states and 452 transitions. Second operand 9 states. [2020-10-21 22:06:37,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:37,784 INFO L93 Difference]: Finished difference Result 295 states and 565 transitions. [2020-10-21 22:06:37,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-21 22:06:37,785 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-21 22:06:37,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:37,786 INFO L225 Difference]: With dead ends: 295 [2020-10-21 22:06:37,786 INFO L226 Difference]: Without dead ends: 265 [2020-10-21 22:06:37,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:06:37,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-10-21 22:06:37,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 227. [2020-10-21 22:06:37,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-10-21 22:06:37,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 456 transitions. [2020-10-21 22:06:37,794 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 456 transitions. Word has length 22 [2020-10-21 22:06:37,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:37,794 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 456 transitions. [2020-10-21 22:06:37,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 22:06:37,794 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 456 transitions. [2020-10-21 22:06:37,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:37,795 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:37,795 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] [2020-10-21 22:06:37,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 22:06:37,796 INFO L429 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]=== [2020-10-21 22:06:37,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:37,796 INFO L82 PathProgramCache]: Analyzing trace with hash 235549017, now seen corresponding path program 3 times [2020-10-21 22:06:37,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:37,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712720674] [2020-10-21 22:06:37,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:38,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:38,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712720674] [2020-10-21 22:06:38,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:38,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:06:38,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696719801] [2020-10-21 22:06:38,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:06:38,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:38,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:06:38,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:06:38,623 INFO L87 Difference]: Start difference. First operand 227 states and 456 transitions. Second operand 14 states. [2020-10-21 22:06:39,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:39,544 INFO L93 Difference]: Finished difference Result 257 states and 502 transitions. [2020-10-21 22:06:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-21 22:06:39,545 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:06:39,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:39,546 INFO L225 Difference]: With dead ends: 257 [2020-10-21 22:06:39,547 INFO L226 Difference]: Without dead ends: 229 [2020-10-21 22:06:39,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:06:39,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-10-21 22:06:39,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-10-21 22:06:39,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-10-21 22:06:39,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 459 transitions. [2020-10-21 22:06:39,554 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 459 transitions. Word has length 22 [2020-10-21 22:06:39,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:39,554 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 459 transitions. [2020-10-21 22:06:39,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:06:39,554 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 459 transitions. [2020-10-21 22:06:39,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:39,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:39,555 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] [2020-10-21 22:06:39,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-21 22:06:39,556 INFO L429 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]=== [2020-10-21 22:06:39,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:39,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1400369243, now seen corresponding path program 4 times [2020-10-21 22:06:39,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:39,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424667966] [2020-10-21 22:06:39,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:40,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:40,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424667966] [2020-10-21 22:06:40,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:40,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:06:40,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208116236] [2020-10-21 22:06:40,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:06:40,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:40,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:06:40,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:06:40,245 INFO L87 Difference]: Start difference. First operand 229 states and 459 transitions. Second operand 14 states. [2020-10-21 22:06:41,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:41,137 INFO L93 Difference]: Finished difference Result 280 states and 545 transitions. [2020-10-21 22:06:41,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-21 22:06:41,138 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:06:41,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:41,140 INFO L225 Difference]: With dead ends: 280 [2020-10-21 22:06:41,140 INFO L226 Difference]: Without dead ends: 253 [2020-10-21 22:06:41,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:06:41,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-10-21 22:06:41,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 233. [2020-10-21 22:06:41,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-21 22:06:41,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 465 transitions. [2020-10-21 22:06:41,147 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 465 transitions. Word has length 22 [2020-10-21 22:06:41,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:41,147 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 465 transitions. [2020-10-21 22:06:41,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:06:41,147 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 465 transitions. [2020-10-21 22:06:41,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:41,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:41,148 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] [2020-10-21 22:06:41,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-21 22:06:41,149 INFO L429 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]=== [2020-10-21 22:06:41,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:41,149 INFO L82 PathProgramCache]: Analyzing trace with hash -223372275, now seen corresponding path program 5 times [2020-10-21 22:06:41,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:41,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989975684] [2020-10-21 22:06:41,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:41,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:41,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989975684] [2020-10-21 22:06:41,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:41,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:06:41,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023265969] [2020-10-21 22:06:41,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:06:41,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:41,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:06:41,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:06:41,801 INFO L87 Difference]: Start difference. First operand 233 states and 465 transitions. Second operand 14 states. [2020-10-21 22:06:42,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:42,679 INFO L93 Difference]: Finished difference Result 273 states and 529 transitions. [2020-10-21 22:06:42,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 22:06:42,680 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:06:42,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:42,682 INFO L225 Difference]: With dead ends: 273 [2020-10-21 22:06:42,682 INFO L226 Difference]: Without dead ends: 273 [2020-10-21 22:06:42,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:06:42,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-10-21 22:06:42,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 266. [2020-10-21 22:06:42,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-21 22:06:42,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 518 transitions. [2020-10-21 22:06:42,689 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 518 transitions. Word has length 22 [2020-10-21 22:06:42,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:42,689 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 518 transitions. [2020-10-21 22:06:42,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:06:42,689 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 518 transitions. [2020-10-21 22:06:42,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:42,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:42,691 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] [2020-10-21 22:06:42,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-21 22:06:42,692 INFO L429 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]=== [2020-10-21 22:06:42,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:42,692 INFO L82 PathProgramCache]: Analyzing trace with hash -223372320, now seen corresponding path program 2 times [2020-10-21 22:06:42,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:42,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006668231] [2020-10-21 22:06:42,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:42,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:42,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006668231] [2020-10-21 22:06:42,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:42,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-21 22:06:42,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468064410] [2020-10-21 22:06:42,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 22:06:42,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:42,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 22:06:42,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-21 22:06:42,971 INFO L87 Difference]: Start difference. First operand 266 states and 518 transitions. Second operand 9 states. [2020-10-21 22:06:43,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:43,316 INFO L93 Difference]: Finished difference Result 367 states and 686 transitions. [2020-10-21 22:06:43,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-21 22:06:43,316 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-21 22:06:43,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:43,320 INFO L225 Difference]: With dead ends: 367 [2020-10-21 22:06:43,320 INFO L226 Difference]: Without dead ends: 338 [2020-10-21 22:06:43,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:06:43,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-10-21 22:06:43,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 258. [2020-10-21 22:06:43,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-10-21 22:06:43,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 514 transitions. [2020-10-21 22:06:43,327 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 514 transitions. Word has length 22 [2020-10-21 22:06:43,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:43,327 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 514 transitions. [2020-10-21 22:06:43,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 22:06:43,328 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 514 transitions. [2020-10-21 22:06:43,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:43,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:43,330 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] [2020-10-21 22:06:43,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-21 22:06:43,331 INFO L429 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]=== [2020-10-21 22:06:43,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:43,331 INFO L82 PathProgramCache]: Analyzing trace with hash 783436301, now seen corresponding path program 6 times [2020-10-21 22:06:43,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:43,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281697838] [2020-10-21 22:06:43,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:44,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:44,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281697838] [2020-10-21 22:06:44,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:44,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:06:44,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684097834] [2020-10-21 22:06:44,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:06:44,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:44,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:06:44,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:06:44,069 INFO L87 Difference]: Start difference. First operand 258 states and 514 transitions. Second operand 14 states. [2020-10-21 22:06:44,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:44,917 INFO L93 Difference]: Finished difference Result 284 states and 551 transitions. [2020-10-21 22:06:44,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-21 22:06:44,918 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:06:44,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:44,920 INFO L225 Difference]: With dead ends: 284 [2020-10-21 22:06:44,921 INFO L226 Difference]: Without dead ends: 267 [2020-10-21 22:06:44,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2020-10-21 22:06:44,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-10-21 22:06:44,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 262. [2020-10-21 22:06:44,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-21 22:06:44,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 520 transitions. [2020-10-21 22:06:44,928 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 520 transitions. Word has length 22 [2020-10-21 22:06:44,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:44,928 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 520 transitions. [2020-10-21 22:06:44,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:06:44,928 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 520 transitions. [2020-10-21 22:06:44,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:44,929 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:44,929 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] [2020-10-21 22:06:44,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-21 22:06:44,929 INFO L429 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]=== [2020-10-21 22:06:44,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:44,930 INFO L82 PathProgramCache]: Analyzing trace with hash -617705459, now seen corresponding path program 7 times [2020-10-21 22:06:44,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:44,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085604329] [2020-10-21 22:06:44,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:45,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:45,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085604329] [2020-10-21 22:06:45,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:45,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:06:45,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854430851] [2020-10-21 22:06:45,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:06:45,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:45,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:06:45,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:06:45,551 INFO L87 Difference]: Start difference. First operand 262 states and 520 transitions. Second operand 14 states. [2020-10-21 22:06:46,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:46,303 INFO L93 Difference]: Finished difference Result 273 states and 531 transitions. [2020-10-21 22:06:46,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-21 22:06:46,304 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:06:46,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:46,306 INFO L225 Difference]: With dead ends: 273 [2020-10-21 22:06:46,306 INFO L226 Difference]: Without dead ends: 244 [2020-10-21 22:06:46,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:06:46,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-10-21 22:06:46,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2020-10-21 22:06:46,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-10-21 22:06:46,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 491 transitions. [2020-10-21 22:06:46,313 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 491 transitions. Word has length 22 [2020-10-21 22:06:46,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:46,313 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 491 transitions. [2020-10-21 22:06:46,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:06:46,313 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 491 transitions. [2020-10-21 22:06:46,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:46,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:46,314 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] [2020-10-21 22:06:46,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-21 22:06:46,315 INFO L429 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]=== [2020-10-21 22:06:46,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:46,315 INFO L82 PathProgramCache]: Analyzing trace with hash 207084251, now seen corresponding path program 8 times [2020-10-21 22:06:46,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:46,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167402808] [2020-10-21 22:06:46,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:46,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:46,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167402808] [2020-10-21 22:06:46,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:46,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:06:46,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727163399] [2020-10-21 22:06:46,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:06:46,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:46,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:06:46,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:06:46,969 INFO L87 Difference]: Start difference. First operand 244 states and 491 transitions. Second operand 14 states. [2020-10-21 22:06:47,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:47,923 INFO L93 Difference]: Finished difference Result 290 states and 574 transitions. [2020-10-21 22:06:47,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 22:06:47,924 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:06:47,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:47,925 INFO L225 Difference]: With dead ends: 290 [2020-10-21 22:06:47,925 INFO L226 Difference]: Without dead ends: 262 [2020-10-21 22:06:47,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:06:47,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-21 22:06:47,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 243. [2020-10-21 22:06:47,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-10-21 22:06:47,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 489 transitions. [2020-10-21 22:06:47,931 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 489 transitions. Word has length 22 [2020-10-21 22:06:47,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:47,932 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 489 transitions. [2020-10-21 22:06:47,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:06:47,932 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 489 transitions. [2020-10-21 22:06:47,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:47,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:47,933 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] [2020-10-21 22:06:47,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-21 22:06:47,933 INFO L429 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]=== [2020-10-21 22:06:47,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:47,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1428834009, now seen corresponding path program 9 times [2020-10-21 22:06:47,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:47,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543466495] [2020-10-21 22:06:47,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:48,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:48,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543466495] [2020-10-21 22:06:48,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:48,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:06:48,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736594762] [2020-10-21 22:06:48,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:06:48,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:48,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:06:48,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:06:48,665 INFO L87 Difference]: Start difference. First operand 243 states and 489 transitions. Second operand 14 states. [2020-10-21 22:06:49,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:49,555 INFO L93 Difference]: Finished difference Result 313 states and 617 transitions. [2020-10-21 22:06:49,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 22:06:49,555 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:06:49,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:49,558 INFO L225 Difference]: With dead ends: 313 [2020-10-21 22:06:49,558 INFO L226 Difference]: Without dead ends: 286 [2020-10-21 22:06:49,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:06:49,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-21 22:06:49,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 247. [2020-10-21 22:06:49,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-10-21 22:06:49,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 495 transitions. [2020-10-21 22:06:49,564 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 495 transitions. Word has length 22 [2020-10-21 22:06:49,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:49,564 INFO L481 AbstractCegarLoop]: Abstraction has 247 states and 495 transitions. [2020-10-21 22:06:49,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:06:49,565 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 495 transitions. [2020-10-21 22:06:49,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:49,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:49,565 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] [2020-10-21 22:06:49,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-21 22:06:49,566 INFO L429 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]=== [2020-10-21 22:06:49,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:49,566 INFO L82 PathProgramCache]: Analyzing trace with hash -251837041, now seen corresponding path program 10 times [2020-10-21 22:06:49,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:49,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727931285] [2020-10-21 22:06:49,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:50,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:50,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727931285] [2020-10-21 22:06:50,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:50,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:06:50,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642484503] [2020-10-21 22:06:50,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:06:50,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:50,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:06:50,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:06:50,276 INFO L87 Difference]: Start difference. First operand 247 states and 495 transitions. Second operand 14 states. [2020-10-21 22:06:51,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:51,406 INFO L93 Difference]: Finished difference Result 305 states and 600 transitions. [2020-10-21 22:06:51,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 22:06:51,406 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:06:51,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:51,408 INFO L225 Difference]: With dead ends: 305 [2020-10-21 22:06:51,408 INFO L226 Difference]: Without dead ends: 276 [2020-10-21 22:06:51,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:06:51,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-10-21 22:06:51,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 251. [2020-10-21 22:06:51,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-10-21 22:06:51,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 501 transitions. [2020-10-21 22:06:51,415 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 501 transitions. Word has length 22 [2020-10-21 22:06:51,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:51,416 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 501 transitions. [2020-10-21 22:06:51,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:06:51,416 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 501 transitions. [2020-10-21 22:06:51,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:51,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:51,417 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] [2020-10-21 22:06:51,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-21 22:06:51,417 INFO L429 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]=== [2020-10-21 22:06:51,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:51,417 INFO L82 PathProgramCache]: Analyzing trace with hash 754971535, now seen corresponding path program 11 times [2020-10-21 22:06:51,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:51,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015493253] [2020-10-21 22:06:51,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:52,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:52,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015493253] [2020-10-21 22:06:52,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:52,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:06:52,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728008873] [2020-10-21 22:06:52,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:06:52,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:52,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:06:52,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:06:52,124 INFO L87 Difference]: Start difference. First operand 251 states and 501 transitions. Second operand 14 states. [2020-10-21 22:06:53,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:53,011 INFO L93 Difference]: Finished difference Result 296 states and 580 transitions. [2020-10-21 22:06:53,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-21 22:06:53,012 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:06:53,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:53,013 INFO L225 Difference]: With dead ends: 296 [2020-10-21 22:06:53,013 INFO L226 Difference]: Without dead ends: 279 [2020-10-21 22:06:53,014 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2020-10-21 22:06:53,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-10-21 22:06:53,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 255. [2020-10-21 22:06:53,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-10-21 22:06:53,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 507 transitions. [2020-10-21 22:06:53,020 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 507 transitions. Word has length 22 [2020-10-21 22:06:53,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:53,021 INFO L481 AbstractCegarLoop]: Abstraction has 255 states and 507 transitions. [2020-10-21 22:06:53,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:06:53,021 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 507 transitions. [2020-10-21 22:06:53,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:53,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:53,022 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] [2020-10-21 22:06:53,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-21 22:06:53,022 INFO L429 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]=== [2020-10-21 22:06:53,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:53,023 INFO L82 PathProgramCache]: Analyzing trace with hash -646170225, now seen corresponding path program 12 times [2020-10-21 22:06:53,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:53,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401758303] [2020-10-21 22:06:53,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:53,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:53,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401758303] [2020-10-21 22:06:53,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:53,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:06:53,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746485394] [2020-10-21 22:06:53,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:06:53,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:53,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:06:53,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:06:53,658 INFO L87 Difference]: Start difference. First operand 255 states and 507 transitions. Second operand 14 states. [2020-10-21 22:06:54,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:54,497 INFO L93 Difference]: Finished difference Result 285 states and 560 transitions. [2020-10-21 22:06:54,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 22:06:54,497 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:06:54,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:54,499 INFO L225 Difference]: With dead ends: 285 [2020-10-21 22:06:54,499 INFO L226 Difference]: Without dead ends: 260 [2020-10-21 22:06:54,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:06:54,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-21 22:06:54,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 241. [2020-10-21 22:06:54,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-21 22:06:54,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 485 transitions. [2020-10-21 22:06:54,505 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 485 transitions. Word has length 22 [2020-10-21 22:06:54,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:54,506 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 485 transitions. [2020-10-21 22:06:54,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:06:54,506 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 485 transitions. [2020-10-21 22:06:54,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:54,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:54,507 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] [2020-10-21 22:06:54,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-21 22:06:54,507 INFO L429 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]=== [2020-10-21 22:06:54,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:54,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1326801883, now seen corresponding path program 13 times [2020-10-21 22:06:54,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:54,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111105920] [2020-10-21 22:06:54,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:55,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:55,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111105920] [2020-10-21 22:06:55,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:55,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:06:55,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021312417] [2020-10-21 22:06:55,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:06:55,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:55,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:06:55,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:06:55,242 INFO L87 Difference]: Start difference. First operand 241 states and 485 transitions. Second operand 14 states. [2020-10-21 22:06:56,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:56,186 INFO L93 Difference]: Finished difference Result 351 states and 690 transitions. [2020-10-21 22:06:56,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 22:06:56,187 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:06:56,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:56,189 INFO L225 Difference]: With dead ends: 351 [2020-10-21 22:06:56,189 INFO L226 Difference]: Without dead ends: 324 [2020-10-21 22:06:56,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:06:56,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-10-21 22:06:56,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 242. [2020-10-21 22:06:56,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-21 22:06:56,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 486 transitions. [2020-10-21 22:06:56,196 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 486 transitions. Word has length 22 [2020-10-21 22:06:56,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:56,196 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 486 transitions. [2020-10-21 22:06:56,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:06:56,196 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 486 transitions. [2020-10-21 22:06:56,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:56,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:56,197 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] [2020-10-21 22:06:56,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-21 22:06:56,198 INFO L429 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]=== [2020-10-21 22:06:56,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:56,198 INFO L82 PathProgramCache]: Analyzing trace with hash -149804915, now seen corresponding path program 14 times [2020-10-21 22:06:56,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:56,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286047288] [2020-10-21 22:06:56,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:56,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:56,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286047288] [2020-10-21 22:06:56,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:56,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:06:56,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590383836] [2020-10-21 22:06:56,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:06:56,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:56,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:06:56,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:06:56,850 INFO L87 Difference]: Start difference. First operand 242 states and 486 transitions. Second operand 14 states. [2020-10-21 22:06:57,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:57,767 INFO L93 Difference]: Finished difference Result 343 states and 673 transitions. [2020-10-21 22:06:57,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 22:06:57,768 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:06:57,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:57,770 INFO L225 Difference]: With dead ends: 343 [2020-10-21 22:06:57,770 INFO L226 Difference]: Without dead ends: 314 [2020-10-21 22:06:57,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:06:57,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-10-21 22:06:57,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 246. [2020-10-21 22:06:57,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-10-21 22:06:57,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 492 transitions. [2020-10-21 22:06:57,777 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 492 transitions. Word has length 22 [2020-10-21 22:06:57,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:57,778 INFO L481 AbstractCegarLoop]: Abstraction has 246 states and 492 transitions. [2020-10-21 22:06:57,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:06:57,778 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 492 transitions. [2020-10-21 22:06:57,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:57,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:57,779 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] [2020-10-21 22:06:57,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-21 22:06:57,779 INFO L429 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]=== [2020-10-21 22:06:57,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:57,779 INFO L82 PathProgramCache]: Analyzing trace with hash 857003661, now seen corresponding path program 15 times [2020-10-21 22:06:57,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:57,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152207222] [2020-10-21 22:06:57,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:58,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:58,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152207222] [2020-10-21 22:06:58,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:58,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:06:58,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149062416] [2020-10-21 22:06:58,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:06:58,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:58,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:06:58,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:06:58,459 INFO L87 Difference]: Start difference. First operand 246 states and 492 transitions. Second operand 14 states. [2020-10-21 22:06:59,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:59,405 INFO L93 Difference]: Finished difference Result 334 states and 653 transitions. [2020-10-21 22:06:59,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-21 22:06:59,406 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:06:59,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:59,407 INFO L225 Difference]: With dead ends: 334 [2020-10-21 22:06:59,407 INFO L226 Difference]: Without dead ends: 317 [2020-10-21 22:06:59,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2020-10-21 22:06:59,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-10-21 22:06:59,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 250. [2020-10-21 22:06:59,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-10-21 22:06:59,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 498 transitions. [2020-10-21 22:06:59,414 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 498 transitions. Word has length 22 [2020-10-21 22:06:59,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:59,414 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 498 transitions. [2020-10-21 22:06:59,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:06:59,414 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 498 transitions. [2020-10-21 22:06:59,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:06:59,415 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:59,415 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] [2020-10-21 22:06:59,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-21 22:06:59,415 INFO L429 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]=== [2020-10-21 22:06:59,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:59,416 INFO L82 PathProgramCache]: Analyzing trace with hash -544138099, now seen corresponding path program 16 times [2020-10-21 22:06:59,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:59,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117627957] [2020-10-21 22:06:59,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:00,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:00,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117627957] [2020-10-21 22:07:00,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:00,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:07:00,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051988660] [2020-10-21 22:07:00,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:07:00,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:00,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:07:00,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:07:00,006 INFO L87 Difference]: Start difference. First operand 250 states and 498 transitions. Second operand 14 states. [2020-10-21 22:07:00,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:00,806 INFO L93 Difference]: Finished difference Result 323 states and 633 transitions. [2020-10-21 22:07:00,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 22:07:00,807 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:07:00,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:00,809 INFO L225 Difference]: With dead ends: 323 [2020-10-21 22:07:00,809 INFO L226 Difference]: Without dead ends: 290 [2020-10-21 22:07:00,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:07:00,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-10-21 22:07:00,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 228. [2020-10-21 22:07:00,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-21 22:07:00,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 463 transitions. [2020-10-21 22:07:00,815 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 463 transitions. Word has length 22 [2020-10-21 22:07:00,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:00,815 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 463 transitions. [2020-10-21 22:07:00,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:07:00,815 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 463 transitions. [2020-10-21 22:07:00,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:00,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:00,816 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] [2020-10-21 22:07:00,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-21 22:07:00,816 INFO L429 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]=== [2020-10-21 22:07:00,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:00,817 INFO L82 PathProgramCache]: Analyzing trace with hash -618210351, now seen corresponding path program 17 times [2020-10-21 22:07:00,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:00,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21786306] [2020-10-21 22:07:00,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:00,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:00,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21786306] [2020-10-21 22:07:00,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:00,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-21 22:07:00,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255958747] [2020-10-21 22:07:00,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:07:00,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:00,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:07:00,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:07:00,911 INFO L87 Difference]: Start difference. First operand 228 states and 463 transitions. Second operand 6 states. [2020-10-21 22:07:00,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:00,989 INFO L93 Difference]: Finished difference Result 128 states and 203 transitions. [2020-10-21 22:07:00,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:07:00,990 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-21 22:07:00,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:00,991 INFO L225 Difference]: With dead ends: 128 [2020-10-21 22:07:00,992 INFO L226 Difference]: Without dead ends: 128 [2020-10-21 22:07:00,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:07:00,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-21 22:07:00,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-10-21 22:07:00,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-21 22:07:00,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 203 transitions. [2020-10-21 22:07:00,996 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 203 transitions. Word has length 22 [2020-10-21 22:07:00,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:00,996 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 203 transitions. [2020-10-21 22:07:00,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 22:07:00,997 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 203 transitions. [2020-10-21 22:07:00,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:00,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:00,998 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] [2020-10-21 22:07:00,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-21 22:07:00,998 INFO L429 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]=== [2020-10-21 22:07:00,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:00,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1321574743, now seen corresponding path program 18 times [2020-10-21 22:07:00,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:00,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174161452] [2020-10-21 22:07:00,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:01,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:01,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174161452] [2020-10-21 22:07:01,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:01,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:07:01,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867917006] [2020-10-21 22:07:01,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:07:01,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:01,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:07:01,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:07:01,682 INFO L87 Difference]: Start difference. First operand 128 states and 203 transitions. Second operand 14 states. [2020-10-21 22:07:02,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:02,512 INFO L93 Difference]: Finished difference Result 159 states and 248 transitions. [2020-10-21 22:07:02,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-21 22:07:02,513 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:07:02,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:02,514 INFO L225 Difference]: With dead ends: 159 [2020-10-21 22:07:02,514 INFO L226 Difference]: Without dead ends: 129 [2020-10-21 22:07:02,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:07:02,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-21 22:07:02,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 128. [2020-10-21 22:07:02,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-21 22:07:02,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 201 transitions. [2020-10-21 22:07:02,518 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 201 transitions. Word has length 22 [2020-10-21 22:07:02,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:02,518 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 201 transitions. [2020-10-21 22:07:02,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:07:02,518 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 201 transitions. [2020-10-21 22:07:02,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:02,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:02,519 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] [2020-10-21 22:07:02,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-21 22:07:02,519 INFO L429 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]=== [2020-10-21 22:07:02,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:02,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1537379531, now seen corresponding path program 19 times [2020-10-21 22:07:02,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:02,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993452974] [2020-10-21 22:07:02,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:03,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:03,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993452974] [2020-10-21 22:07:03,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:03,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:07:03,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218653958] [2020-10-21 22:07:03,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:07:03,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:03,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:07:03,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:07:03,159 INFO L87 Difference]: Start difference. First operand 128 states and 201 transitions. Second operand 14 states. [2020-10-21 22:07:04,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:04,001 INFO L93 Difference]: Finished difference Result 156 states and 243 transitions. [2020-10-21 22:07:04,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-21 22:07:04,006 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:07:04,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:04,007 INFO L225 Difference]: With dead ends: 156 [2020-10-21 22:07:04,008 INFO L226 Difference]: Without dead ends: 128 [2020-10-21 22:07:04,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:07:04,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-21 22:07:04,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-10-21 22:07:04,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-21 22:07:04,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 200 transitions. [2020-10-21 22:07:04,011 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 200 transitions. Word has length 22 [2020-10-21 22:07:04,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:04,011 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 200 transitions. [2020-10-21 22:07:04,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:07:04,011 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 200 transitions. [2020-10-21 22:07:04,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:04,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:04,012 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] [2020-10-21 22:07:04,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-21 22:07:04,013 INFO L429 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]=== [2020-10-21 22:07:04,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:04,013 INFO L82 PathProgramCache]: Analyzing trace with hash -98538729, now seen corresponding path program 20 times [2020-10-21 22:07:04,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:04,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911754468] [2020-10-21 22:07:04,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:04,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:04,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911754468] [2020-10-21 22:07:04,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:04,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:07:04,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206527968] [2020-10-21 22:07:04,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:07:04,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:04,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:07:04,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:07:04,652 INFO L87 Difference]: Start difference. First operand 128 states and 200 transitions. Second operand 14 states. [2020-10-21 22:07:05,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:05,424 INFO L93 Difference]: Finished difference Result 167 states and 262 transitions. [2020-10-21 22:07:05,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-21 22:07:05,424 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:07:05,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:05,425 INFO L225 Difference]: With dead ends: 167 [2020-10-21 22:07:05,425 INFO L226 Difference]: Without dead ends: 140 [2020-10-21 22:07:05,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:07:05,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-21 22:07:05,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 128. [2020-10-21 22:07:05,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-21 22:07:05,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 198 transitions. [2020-10-21 22:07:05,428 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 198 transitions. Word has length 22 [2020-10-21 22:07:05,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:05,428 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 198 transitions. [2020-10-21 22:07:05,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:07:05,428 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 198 transitions. [2020-10-21 22:07:05,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:05,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:05,429 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] [2020-10-21 22:07:05,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-21 22:07:05,429 INFO L429 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]=== [2020-10-21 22:07:05,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:05,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1078458239, now seen corresponding path program 21 times [2020-10-21 22:07:05,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:05,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86347094] [2020-10-21 22:07:05,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:06,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:06,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86347094] [2020-10-21 22:07:06,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:06,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:07:06,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138797470] [2020-10-21 22:07:06,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:07:06,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:06,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:07:06,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:07:06,044 INFO L87 Difference]: Start difference. First operand 128 states and 198 transitions. Second operand 14 states. [2020-10-21 22:07:06,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:06,833 INFO L93 Difference]: Finished difference Result 159 states and 245 transitions. [2020-10-21 22:07:06,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-21 22:07:06,834 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:07:06,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:06,834 INFO L225 Difference]: With dead ends: 159 [2020-10-21 22:07:06,834 INFO L226 Difference]: Without dead ends: 130 [2020-10-21 22:07:06,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:07:06,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-21 22:07:06,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2020-10-21 22:07:06,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-21 22:07:06,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 194 transitions. [2020-10-21 22:07:06,837 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 194 transitions. Word has length 22 [2020-10-21 22:07:06,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:06,838 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 194 transitions. [2020-10-21 22:07:06,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:07:06,838 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 194 transitions. [2020-10-21 22:07:06,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:06,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:06,838 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] [2020-10-21 22:07:06,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-21 22:07:06,839 INFO L429 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]=== [2020-10-21 22:07:06,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:06,839 INFO L82 PathProgramCache]: Analyzing trace with hash 2085266815, now seen corresponding path program 22 times [2020-10-21 22:07:06,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:06,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61507436] [2020-10-21 22:07:06,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:07,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:07,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61507436] [2020-10-21 22:07:07,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:07,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:07:07,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362373679] [2020-10-21 22:07:07,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:07:07,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:07,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:07:07,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:07:07,478 INFO L87 Difference]: Start difference. First operand 127 states and 194 transitions. Second operand 14 states. [2020-10-21 22:07:08,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:08,276 INFO L93 Difference]: Finished difference Result 151 states and 225 transitions. [2020-10-21 22:07:08,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-21 22:07:08,277 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:07:08,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:08,278 INFO L225 Difference]: With dead ends: 151 [2020-10-21 22:07:08,278 INFO L226 Difference]: Without dead ends: 134 [2020-10-21 22:07:08,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-10-21 22:07:08,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-21 22:07:08,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 125. [2020-10-21 22:07:08,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-21 22:07:08,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 188 transitions. [2020-10-21 22:07:08,281 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 188 transitions. Word has length 22 [2020-10-21 22:07:08,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:08,281 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 188 transitions. [2020-10-21 22:07:08,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:07:08,282 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 188 transitions. [2020-10-21 22:07:08,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:08,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:08,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:08,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-21 22:07:08,283 INFO L429 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]=== [2020-10-21 22:07:08,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:08,283 INFO L82 PathProgramCache]: Analyzing trace with hash 684125055, now seen corresponding path program 23 times [2020-10-21 22:07:08,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:08,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254065889] [2020-10-21 22:07:08,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:08,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:08,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254065889] [2020-10-21 22:07:08,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:08,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:07:08,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378844579] [2020-10-21 22:07:08,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:07:08,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:08,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:07:08,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:07:08,897 INFO L87 Difference]: Start difference. First operand 125 states and 188 transitions. Second operand 14 states. [2020-10-21 22:07:09,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:09,544 INFO L93 Difference]: Finished difference Result 139 states and 204 transitions. [2020-10-21 22:07:09,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 22:07:09,544 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:07:09,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:09,545 INFO L225 Difference]: With dead ends: 139 [2020-10-21 22:07:09,545 INFO L226 Difference]: Without dead ends: 110 [2020-10-21 22:07:09,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:07:09,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-21 22:07:09,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 101. [2020-10-21 22:07:09,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-21 22:07:09,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 152 transitions. [2020-10-21 22:07:09,548 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 152 transitions. Word has length 22 [2020-10-21 22:07:09,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:09,549 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 152 transitions. [2020-10-21 22:07:09,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:07:09,549 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 152 transitions. [2020-10-21 22:07:09,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:09,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:09,549 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] [2020-10-21 22:07:09,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-21 22:07:09,550 INFO L429 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]=== [2020-10-21 22:07:09,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:09,550 INFO L82 PathProgramCache]: Analyzing trace with hash 374516555, now seen corresponding path program 24 times [2020-10-21 22:07:09,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:09,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764088206] [2020-10-21 22:07:09,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:10,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:10,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764088206] [2020-10-21 22:07:10,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:10,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:07:10,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799050124] [2020-10-21 22:07:10,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:07:10,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:10,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:07:10,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:07:10,279 INFO L87 Difference]: Start difference. First operand 101 states and 152 transitions. Second operand 14 states. [2020-10-21 22:07:11,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:11,053 INFO L93 Difference]: Finished difference Result 101 states and 151 transitions. [2020-10-21 22:07:11,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-21 22:07:11,054 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:07:11,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:11,054 INFO L225 Difference]: With dead ends: 101 [2020-10-21 22:07:11,055 INFO L226 Difference]: Without dead ends: 71 [2020-10-21 22:07:11,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:07:11,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-21 22:07:11,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-21 22:07:11,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-21 22:07:11,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 106 transitions. [2020-10-21 22:07:11,057 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 106 transitions. Word has length 22 [2020-10-21 22:07:11,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:11,058 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 106 transitions. [2020-10-21 22:07:11,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:07:11,058 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 106 transitions. [2020-10-21 22:07:11,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:11,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:11,058 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] [2020-10-21 22:07:11,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-21 22:07:11,059 INFO L429 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]=== [2020-10-21 22:07:11,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:11,059 INFO L82 PathProgramCache]: Analyzing trace with hash -983508743, now seen corresponding path program 25 times [2020-10-21 22:07:11,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:11,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922364062] [2020-10-21 22:07:11,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:11,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:11,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922364062] [2020-10-21 22:07:11,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:11,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:07:11,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096621699] [2020-10-21 22:07:11,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:07:11,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:11,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:07:11,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:07:11,663 INFO L87 Difference]: Start difference. First operand 71 states and 106 transitions. Second operand 14 states. [2020-10-21 22:07:12,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:12,368 INFO L93 Difference]: Finished difference Result 87 states and 121 transitions. [2020-10-21 22:07:12,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 22:07:12,368 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:07:12,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:12,369 INFO L225 Difference]: With dead ends: 87 [2020-10-21 22:07:12,369 INFO L226 Difference]: Without dead ends: 87 [2020-10-21 22:07:12,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:07:12,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-21 22:07:12,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2020-10-21 22:07:12,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-21 22:07:12,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 121 transitions. [2020-10-21 22:07:12,372 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 121 transitions. Word has length 22 [2020-10-21 22:07:12,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:12,373 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 121 transitions. [2020-10-21 22:07:12,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:07:12,373 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 121 transitions. [2020-10-21 22:07:12,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:12,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:12,373 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] [2020-10-21 22:07:12,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-21 22:07:12,374 INFO L429 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]=== [2020-10-21 22:07:12,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:12,374 INFO L82 PathProgramCache]: Analyzing trace with hash -983508788, now seen corresponding path program 3 times [2020-10-21 22:07:12,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:12,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979184798] [2020-10-21 22:07:12,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:12,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:12,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979184798] [2020-10-21 22:07:12,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:12,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-21 22:07:12,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914403520] [2020-10-21 22:07:12,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 22:07:12,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:12,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 22:07:12,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-21 22:07:12,612 INFO L87 Difference]: Start difference. First operand 86 states and 121 transitions. Second operand 9 states. [2020-10-21 22:07:12,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:12,951 INFO L93 Difference]: Finished difference Result 111 states and 158 transitions. [2020-10-21 22:07:12,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-21 22:07:12,952 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-21 22:07:12,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:12,953 INFO L225 Difference]: With dead ends: 111 [2020-10-21 22:07:12,953 INFO L226 Difference]: Without dead ends: 95 [2020-10-21 22:07:12,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:07:12,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-21 22:07:12,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-10-21 22:07:12,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-21 22:07:12,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 142 transitions. [2020-10-21 22:07:12,955 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 142 transitions. Word has length 22 [2020-10-21 22:07:12,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:12,955 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 142 transitions. [2020-10-21 22:07:12,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 22:07:12,955 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 142 transitions. [2020-10-21 22:07:12,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:12,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:12,956 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] [2020-10-21 22:07:12,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-21 22:07:12,956 INFO L429 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]=== [2020-10-21 22:07:12,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:12,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1609619909, now seen corresponding path program 26 times [2020-10-21 22:07:12,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:12,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497885438] [2020-10-21 22:07:12,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:13,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:13,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497885438] [2020-10-21 22:07:13,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:13,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:07:13,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324267270] [2020-10-21 22:07:13,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:07:13,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:13,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:07:13,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:07:13,562 INFO L87 Difference]: Start difference. First operand 95 states and 142 transitions. Second operand 14 states. [2020-10-21 22:07:14,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:14,341 INFO L93 Difference]: Finished difference Result 126 states and 188 transitions. [2020-10-21 22:07:14,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-21 22:07:14,341 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:07:14,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:14,342 INFO L225 Difference]: With dead ends: 126 [2020-10-21 22:07:14,342 INFO L226 Difference]: Without dead ends: 84 [2020-10-21 22:07:14,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:07:14,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-21 22:07:14,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-21 22:07:14,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-21 22:07:14,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 129 transitions. [2020-10-21 22:07:14,345 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 129 transitions. Word has length 22 [2020-10-21 22:07:14,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:14,345 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 129 transitions. [2020-10-21 22:07:14,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:07:14,346 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 129 transitions. [2020-10-21 22:07:14,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:14,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:14,346 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] [2020-10-21 22:07:14,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-21 22:07:14,347 INFO L429 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]=== [2020-10-21 22:07:14,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:14,347 INFO L82 PathProgramCache]: Analyzing trace with hash 468200473, now seen corresponding path program 2 times [2020-10-21 22:07:14,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:14,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285746392] [2020-10-21 22:07:14,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:14,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:14,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285746392] [2020-10-21 22:07:14,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:14,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-21 22:07:14,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033283151] [2020-10-21 22:07:14,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-21 22:07:14,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:14,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-21 22:07:14,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:07:14,445 INFO L87 Difference]: Start difference. First operand 84 states and 129 transitions. Second operand 8 states. [2020-10-21 22:07:14,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:14,622 INFO L93 Difference]: Finished difference Result 69 states and 95 transitions. [2020-10-21 22:07:14,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 22:07:14,622 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-21 22:07:14,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:14,623 INFO L225 Difference]: With dead ends: 69 [2020-10-21 22:07:14,623 INFO L226 Difference]: Without dead ends: 69 [2020-10-21 22:07:14,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-21 22:07:14,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-21 22:07:14,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2020-10-21 22:07:14,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-21 22:07:14,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 93 transitions. [2020-10-21 22:07:14,624 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 93 transitions. Word has length 22 [2020-10-21 22:07:14,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:14,625 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 93 transitions. [2020-10-21 22:07:14,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-21 22:07:14,625 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2020-10-21 22:07:14,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:14,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:14,626 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] [2020-10-21 22:07:14,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-21 22:07:14,626 INFO L429 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]=== [2020-10-21 22:07:14,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:14,626 INFO L82 PathProgramCache]: Analyzing trace with hash -411053783, now seen corresponding path program 27 times [2020-10-21 22:07:14,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:14,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094058877] [2020-10-21 22:07:14,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:15,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:15,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094058877] [2020-10-21 22:07:15,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:15,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:07:15,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082828347] [2020-10-21 22:07:15,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:07:15,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:15,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:07:15,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:07:15,352 INFO L87 Difference]: Start difference. First operand 67 states and 93 transitions. Second operand 14 states. [2020-10-21 22:07:16,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:16,180 INFO L93 Difference]: Finished difference Result 79 states and 104 transitions. [2020-10-21 22:07:16,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-21 22:07:16,181 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:07:16,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:16,181 INFO L225 Difference]: With dead ends: 79 [2020-10-21 22:07:16,182 INFO L226 Difference]: Without dead ends: 66 [2020-10-21 22:07:16,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2020-10-21 22:07:16,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-21 22:07:16,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-21 22:07:16,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-21 22:07:16,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 91 transitions. [2020-10-21 22:07:16,184 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 91 transitions. Word has length 22 [2020-10-21 22:07:16,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:16,185 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 91 transitions. [2020-10-21 22:07:16,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:07:16,185 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2020-10-21 22:07:16,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:16,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:16,185 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] [2020-10-21 22:07:16,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-21 22:07:16,186 INFO L429 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]=== [2020-10-21 22:07:16,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:16,186 INFO L82 PathProgramCache]: Analyzing trace with hash -2098826979, now seen corresponding path program 28 times [2020-10-21 22:07:16,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:16,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515293371] [2020-10-21 22:07:16,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:16,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:16,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515293371] [2020-10-21 22:07:16,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:16,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:07:16,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613123136] [2020-10-21 22:07:16,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:07:16,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:16,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:07:16,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:07:16,798 INFO L87 Difference]: Start difference. First operand 66 states and 91 transitions. Second operand 14 states. [2020-10-21 22:07:17,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:17,496 INFO L93 Difference]: Finished difference Result 66 states and 90 transitions. [2020-10-21 22:07:17,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 22:07:17,496 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:07:17,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:17,497 INFO L225 Difference]: With dead ends: 66 [2020-10-21 22:07:17,497 INFO L226 Difference]: Without dead ends: 54 [2020-10-21 22:07:17,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-10-21 22:07:17,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-21 22:07:17,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-21 22:07:17,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-21 22:07:17,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 77 transitions. [2020-10-21 22:07:17,499 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 77 transitions. Word has length 22 [2020-10-21 22:07:17,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:17,499 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 77 transitions. [2020-10-21 22:07:17,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:07:17,500 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 77 transitions. [2020-10-21 22:07:17,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:17,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:17,500 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] [2020-10-21 22:07:17,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-21 22:07:17,500 INFO L429 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]=== [2020-10-21 22:07:17,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:17,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1088468309, now seen corresponding path program 29 times [2020-10-21 22:07:17,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:17,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934994259] [2020-10-21 22:07:17,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:18,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:18,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934994259] [2020-10-21 22:07:18,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:18,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:07:18,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305995379] [2020-10-21 22:07:18,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:07:18,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:18,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:07:18,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:07:18,092 INFO L87 Difference]: Start difference. First operand 54 states and 77 transitions. Second operand 14 states. [2020-10-21 22:07:18,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:18,791 INFO L93 Difference]: Finished difference Result 72 states and 101 transitions. [2020-10-21 22:07:18,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 22:07:18,791 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:07:18,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:18,792 INFO L225 Difference]: With dead ends: 72 [2020-10-21 22:07:18,792 INFO L226 Difference]: Without dead ends: 72 [2020-10-21 22:07:18,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:07:18,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-21 22:07:18,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2020-10-21 22:07:18,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-21 22:07:18,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 101 transitions. [2020-10-21 22:07:18,794 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 101 transitions. Word has length 22 [2020-10-21 22:07:18,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:18,795 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 101 transitions. [2020-10-21 22:07:18,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:07:18,795 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 101 transitions. [2020-10-21 22:07:18,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:18,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:18,797 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] [2020-10-21 22:07:18,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-21 22:07:18,797 INFO L429 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]=== [2020-10-21 22:07:18,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:18,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1088468264, now seen corresponding path program 4 times [2020-10-21 22:07:18,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:18,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379244020] [2020-10-21 22:07:18,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:19,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:19,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379244020] [2020-10-21 22:07:19,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:19,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-21 22:07:19,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577268099] [2020-10-21 22:07:19,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 22:07:19,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:19,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 22:07:19,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-21 22:07:19,036 INFO L87 Difference]: Start difference. First operand 71 states and 101 transitions. Second operand 9 states. [2020-10-21 22:07:19,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:19,278 INFO L93 Difference]: Finished difference Result 70 states and 99 transitions. [2020-10-21 22:07:19,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-21 22:07:19,279 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-21 22:07:19,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:19,279 INFO L225 Difference]: With dead ends: 70 [2020-10-21 22:07:19,279 INFO L226 Difference]: Without dead ends: 44 [2020-10-21 22:07:19,280 INFO L677 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 [2020-10-21 22:07:19,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-21 22:07:19,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-10-21 22:07:19,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-21 22:07:19,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 62 transitions. [2020-10-21 22:07:19,281 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 62 transitions. Word has length 22 [2020-10-21 22:07:19,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:19,281 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 62 transitions. [2020-10-21 22:07:19,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 22:07:19,281 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 62 transitions. [2020-10-21 22:07:19,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:19,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:19,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:19,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-21 22:07:19,282 INFO L429 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]=== [2020-10-21 22:07:19,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:19,283 INFO L82 PathProgramCache]: Analyzing trace with hash 22133125, now seen corresponding path program 3 times [2020-10-21 22:07:19,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:19,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904543591] [2020-10-21 22:07:19,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:19,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:19,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904543591] [2020-10-21 22:07:19,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:19,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:07:19,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603354763] [2020-10-21 22:07:19,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-21 22:07:19,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:19,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-21 22:07:19,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-10-21 22:07:19,505 INFO L87 Difference]: Start difference. First operand 44 states and 62 transitions. Second operand 13 states. [2020-10-21 22:07:19,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:19,855 INFO L93 Difference]: Finished difference Result 44 states and 61 transitions. [2020-10-21 22:07:19,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:07:19,856 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 22 [2020-10-21 22:07:19,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:19,857 INFO L225 Difference]: With dead ends: 44 [2020-10-21 22:07:19,857 INFO L226 Difference]: Without dead ends: 35 [2020-10-21 22:07:19,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=224, Unknown=0, NotChecked=0, Total=342 [2020-10-21 22:07:19,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-21 22:07:19,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-21 22:07:19,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-21 22:07:19,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 46 transitions. [2020-10-21 22:07:19,859 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 46 transitions. Word has length 22 [2020-10-21 22:07:19,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:19,859 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 46 transitions. [2020-10-21 22:07:19,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-21 22:07:19,859 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2020-10-21 22:07:19,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:19,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:19,860 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] [2020-10-21 22:07:19,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-21 22:07:19,860 INFO L429 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]=== [2020-10-21 22:07:19,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:19,861 INFO L82 PathProgramCache]: Analyzing trace with hash 913881587, now seen corresponding path program 30 times [2020-10-21 22:07:19,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:19,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951647056] [2020-10-21 22:07:19,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:20,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:20,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951647056] [2020-10-21 22:07:20,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:20,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:07:20,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257037511] [2020-10-21 22:07:20,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:07:20,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:20,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:07:20,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:07:20,463 INFO L87 Difference]: Start difference. First operand 35 states and 46 transitions. Second operand 14 states. [2020-10-21 22:07:21,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:21,087 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2020-10-21 22:07:21,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 22:07:21,088 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:07:21,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:21,088 INFO L225 Difference]: With dead ends: 42 [2020-10-21 22:07:21,089 INFO L226 Difference]: Without dead ends: 34 [2020-10-21 22:07:21,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:07:21,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-21 22:07:21,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-21 22:07:21,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-21 22:07:21,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2020-10-21 22:07:21,091 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 22 [2020-10-21 22:07:21,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:21,091 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2020-10-21 22:07:21,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:07:21,091 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2020-10-21 22:07:21,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:07:21,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:21,092 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] [2020-10-21 22:07:21,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-21 22:07:21,092 INFO L429 AbstractCegarLoop]: === Iteration 42 === [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]=== [2020-10-21 22:07:21,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:21,092 INFO L82 PathProgramCache]: Analyzing trace with hash -92005337, now seen corresponding path program 31 times [2020-10-21 22:07:21,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:21,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556419302] [2020-10-21 22:07:21,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:21,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:21,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556419302] [2020-10-21 22:07:21,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:21,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-21 22:07:21,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136230643] [2020-10-21 22:07:21,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 22:07:21,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:21,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 22:07:21,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:07:21,893 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand 14 states. [2020-10-21 22:07:22,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:22,468 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2020-10-21 22:07:22,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-21 22:07:22,469 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-21 22:07:22,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:22,469 INFO L225 Difference]: With dead ends: 33 [2020-10-21 22:07:22,469 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:07:22,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2020-10-21 22:07:22,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:07:22,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:07:22,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:07:22,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:07:22,471 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-10-21 22:07:22,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:22,471 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:07:22,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 22:07:22,471 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:07:22,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:07:22,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-21 22:07:22,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:07:22 BasicIcfg [2020-10-21 22:07:22,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:07:22,476 INFO L168 Benchmark]: Toolchain (without parser) took 79494.04 ms. Allocated memory was 139.5 MB in the beginning and 577.2 MB in the end (delta: 437.8 MB). Free memory was 98.8 MB in the beginning and 167.5 MB in the end (delta: -68.7 MB). Peak memory consumption was 369.1 MB. Max. memory is 7.1 GB. [2020-10-21 22:07:22,477 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 22:07:22,477 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1384.15 ms. Allocated memory was 139.5 MB in the beginning and 236.5 MB in the end (delta: 97.0 MB). Free memory was 97.9 MB in the beginning and 167.7 MB in the end (delta: -69.8 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:07:22,478 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.79 ms. Allocated memory is still 236.5 MB. Free memory was 167.7 MB in the beginning and 164.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:07:22,478 INFO L168 Benchmark]: Boogie Preprocessor took 48.71 ms. Allocated memory is still 236.5 MB. Free memory was 164.8 MB in the beginning and 161.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:07:22,478 INFO L168 Benchmark]: RCFGBuilder took 772.56 ms. Allocated memory is still 236.5 MB. Free memory was 161.9 MB in the beginning and 109.7 MB in the end (delta: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. [2020-10-21 22:07:22,479 INFO L168 Benchmark]: TraceAbstraction took 77197.37 ms. Allocated memory was 236.5 MB in the beginning and 577.2 MB in the end (delta: 340.8 MB). Free memory was 109.7 MB in the beginning and 167.5 MB in the end (delta: -57.8 MB). Peak memory consumption was 282.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:07:22,481 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1384.15 ms. Allocated memory was 139.5 MB in the beginning and 236.5 MB in the end (delta: 97.0 MB). Free memory was 97.9 MB in the beginning and 167.7 MB in the end (delta: -69.8 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 80.79 ms. Allocated memory is still 236.5 MB. Free memory was 167.7 MB in the beginning and 164.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 48.71 ms. Allocated memory is still 236.5 MB. Free memory was 164.8 MB in the beginning and 161.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 772.56 ms. Allocated memory is still 236.5 MB. Free memory was 161.9 MB in the beginning and 109.7 MB in the end (delta: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 77197.37 ms. Allocated memory was 236.5 MB in the beginning and 577.2 MB in the end (delta: 340.8 MB). Free memory was 109.7 MB in the beginning and 167.5 MB in the end (delta: -57.8 MB). Peak memory consumption was 282.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2408 VarBasedMoverChecksPositive, 49 VarBasedMoverChecksNegative, 5 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 8 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 17.4s, 155 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 27.3s, 179 PlacesBefore, 41 PlacesAfterwards, 189 TransitionsBefore, 40 TransitionsAfterwards, 3444 CoEnabledTransitionPairs, 8 FixpointIterations, 116 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 27 ConcurrentYvCompositions, 11 ChoiceCompositions, 237 TotalNumberOfCompositions, 7933 MoverChecksTotal - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1691]: 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, 158 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 77.0s, OverallIterations: 42, TraceHistogramMax: 1, AutomataDifference: 26.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 27.3s, HoareTripleCheckerStatistics: 1035 SDtfs, 1801 SDslu, 4544 SDs, 0 SdLazy, 11406 SolverSat, 879 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 759 GetRequests, 26 SyntacticMatches, 70 SemanticMatches, 663 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1506 ImplicationChecksByTransitivity, 29.5s 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: 0.3s AutomataMinimizationTime, 42 MinimizatonAttempts, 758 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 20.2s InterpolantComputationTime, 857 NumberOfCodeBlocks, 857 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 815 ConstructedInterpolants, 0 QuantifiedInterpolants, 382053 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 42 InterpolantComputations, 42 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...