/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-wmm/safe018_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:10:01,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:10:01,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:10:02,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:10:02,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:10:02,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:10:02,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:10:02,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:10:02,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:10:02,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:10:02,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:10:02,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:10:02,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:10:02,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:10:02,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:10:02,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:10:02,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:10:02,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:10:02,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:10:02,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:10:02,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:10:02,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:10:02,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:10:02,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:10:02,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:10:02,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:10:02,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:10:02,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:10:02,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:10:02,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:10:02,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:10:02,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:10:02,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:10:02,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:10:02,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:10:02,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:10:02,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:10:02,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:10:02,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:10:02,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:10:02,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:10:02,090 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:10:02,117 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:10:02,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:10:02,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:10:02,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:10:02,120 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:10:02,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:10:02,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:10:02,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:10:02,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:10:02,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:10:02,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:10:02,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:10:02,122 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:10:02,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:10:02,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:10:02,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:10:02,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:10:02,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:10:02,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:10:02,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:10:02,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:10:02,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:10:02,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:10:02,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:10:02,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:10:02,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:10:02,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:10:02,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:10:02,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:10:02,532 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:10:02,533 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:10:02,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe018_tso.oepc.i [2020-12-22 11:10:02,618 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed2dbf664/e6b5e4ca806d4d5d8aaae015b0b203ca/FLAG7071bf638 [2020-12-22 11:10:03,297 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:10:03,298 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_tso.oepc.i [2020-12-22 11:10:03,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed2dbf664/e6b5e4ca806d4d5d8aaae015b0b203ca/FLAG7071bf638 [2020-12-22 11:10:03,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed2dbf664/e6b5e4ca806d4d5d8aaae015b0b203ca [2020-12-22 11:10:03,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:10:03,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:10:03,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:10:03,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:10:03,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:10:03,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:10:03" (1/1) ... [2020-12-22 11:10:03,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c8976b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:03, skipping insertion in model container [2020-12-22 11:10:03,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:10:03" (1/1) ... [2020-12-22 11:10:03,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:10:03,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:10:03,844 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_tso.oepc.i[950,963] [2020-12-22 11:10:04,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:10:04,113 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:10:04,130 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_tso.oepc.i[950,963] [2020-12-22 11:10:04,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:10:04,346 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:10:04,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:04 WrapperNode [2020-12-22 11:10:04,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:10:04,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:10:04,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:10:04,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:10:04,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:04" (1/1) ... [2020-12-22 11:10:04,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:04" (1/1) ... [2020-12-22 11:10:04,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:10:04,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:10:04,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:10:04,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:10:04,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:04" (1/1) ... [2020-12-22 11:10:04,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:04" (1/1) ... [2020-12-22 11:10:04,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:04" (1/1) ... [2020-12-22 11:10:04,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:04" (1/1) ... [2020-12-22 11:10:04,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:04" (1/1) ... [2020-12-22 11:10:04,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:04" (1/1) ... [2020-12-22 11:10:04,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:04" (1/1) ... [2020-12-22 11:10:04,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:10:04,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:10:04,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:10:04,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:10:04,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:04" (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 [2020-12-22 11:10:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:10:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:10:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:10:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:10:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:10:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:10:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:10:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:10:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:10:04,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:10:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:10:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:10:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:10:04,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:10:04,601 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 11:10:05,076 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:10:05,076 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:10:05,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:10:05 BoogieIcfgContainer [2020-12-22 11:10:05,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:10:05,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:10:05,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:10:05,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:10:05,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:10:03" (1/3) ... [2020-12-22 11:10:05,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7367d92c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:10:05, skipping insertion in model container [2020-12-22 11:10:05,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:04" (2/3) ... [2020-12-22 11:10:05,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7367d92c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:10:05, skipping insertion in model container [2020-12-22 11:10:05,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:10:05" (3/3) ... [2020-12-22 11:10:05,089 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_tso.oepc.i [2020-12-22 11:10:05,097 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:10:05,097 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:10:05,102 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:10:05,103 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:10:05,144 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,145 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,145 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,145 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,145 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,145 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,146 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,146 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,146 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,146 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,147 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,147 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,147 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,148 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,148 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,149 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,149 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,149 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,149 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,150 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,150 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,150 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,151 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,151 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,151 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,151 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,151 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,152 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,152 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,152 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,152 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,155 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,156 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,156 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,162 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,162 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,162 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,163 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,166 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,166 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,166 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,166 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:05,169 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:10:05,190 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:10:05,216 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:10:05,216 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:10:05,216 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:10:05,217 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:10:05,217 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:10:05,217 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:10:05,217 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:10:05,217 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:10:05,231 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:10:05,233 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 74 transitions, 163 flow [2020-12-22 11:10:05,236 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 74 transitions, 163 flow [2020-12-22 11:10:05,238 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2020-12-22 11:10:05,283 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2020-12-22 11:10:05,283 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:10:05,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-12-22 11:10:05,290 INFO L116 LiptonReduction]: Number of co-enabled transitions 1212 [2020-12-22 11:10:08,129 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-22 11:10:08,253 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 11:10:08,458 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-22 11:10:08,553 INFO L131 LiptonReduction]: Checked pairs total: 2020 [2020-12-22 11:10:08,553 INFO L133 LiptonReduction]: Total number of compositions: 61 [2020-12-22 11:10:08,561 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-12-22 11:10:08,589 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states. [2020-12-22 11:10:08,592 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-12-22 11:10:08,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:10:08,601 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:08,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:08,602 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:08,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:08,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1647941983, now seen corresponding path program 1 times [2020-12-22 11:10:08,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:08,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144667865] [2020-12-22 11:10:08,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:08,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:08,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144667865] [2020-12-22 11:10:08,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:08,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:10:08,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613814538] [2020-12-22 11:10:08,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:10:08,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:08,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:10:08,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:10:08,846 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states. [2020-12-22 11:10:08,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:08,878 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions. [2020-12-22 11:10:08,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:10:08,880 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-22 11:10:08,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:08,908 INFO L225 Difference]: With dead ends: 274 [2020-12-22 11:10:08,908 INFO L226 Difference]: Without dead ends: 226 [2020-12-22 11:10:08,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:10:08,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-12-22 11:10:08,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-12-22 11:10:08,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-12-22 11:10:09,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2020-12-22 11:10:09,003 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2020-12-22 11:10:09,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:09,005 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2020-12-22 11:10:09,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:10:09,005 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-12-22 11:10:09,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:10:09,006 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:09,007 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:09,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:10:09,007 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:09,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:09,008 INFO L82 PathProgramCache]: Analyzing trace with hash -453422130, now seen corresponding path program 1 times [2020-12-22 11:10:09,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:09,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060735062] [2020-12-22 11:10:09,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:09,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:09,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060735062] [2020-12-22 11:10:09,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:09,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:10:09,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958038757] [2020-12-22 11:10:09,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:09,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:09,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:09,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:09,189 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 4 states. [2020-12-22 11:10:09,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:09,251 INFO L93 Difference]: Finished difference Result 268 states and 719 transitions. [2020-12-22 11:10:09,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:10:09,252 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:10:09,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:09,257 INFO L225 Difference]: With dead ends: 268 [2020-12-22 11:10:09,257 INFO L226 Difference]: Without dead ends: 220 [2020-12-22 11:10:09,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:09,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-12-22 11:10:09,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2020-12-22 11:10:09,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-12-22 11:10:09,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 612 transitions. [2020-12-22 11:10:09,306 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 612 transitions. Word has length 9 [2020-12-22 11:10:09,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:09,306 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 612 transitions. [2020-12-22 11:10:09,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:09,306 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 612 transitions. [2020-12-22 11:10:09,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:10:09,308 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:09,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:09,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:10:09,309 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:09,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:09,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1814079141, now seen corresponding path program 1 times [2020-12-22 11:10:09,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:09,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939338712] [2020-12-22 11:10:09,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:09,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:09,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939338712] [2020-12-22 11:10:09,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:09,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:10:09,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744469133] [2020-12-22 11:10:09,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:10:09,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:09,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:10:09,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:09,407 INFO L87 Difference]: Start difference. First operand 220 states and 612 transitions. Second operand 5 states. [2020-12-22 11:10:09,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:09,515 INFO L93 Difference]: Finished difference Result 295 states and 800 transitions. [2020-12-22 11:10:09,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 11:10:09,516 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 11:10:09,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:09,519 INFO L225 Difference]: With dead ends: 295 [2020-12-22 11:10:09,520 INFO L226 Difference]: Without dead ends: 250 [2020-12-22 11:10:09,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:10:09,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-12-22 11:10:09,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 232. [2020-12-22 11:10:09,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-12-22 11:10:09,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 641 transitions. [2020-12-22 11:10:09,542 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 641 transitions. Word has length 10 [2020-12-22 11:10:09,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:09,544 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 641 transitions. [2020-12-22 11:10:09,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:10:09,544 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 641 transitions. [2020-12-22 11:10:09,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:10:09,551 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:09,551 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:09,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:10:09,551 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:09,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:09,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1172176569, now seen corresponding path program 1 times [2020-12-22 11:10:09,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:09,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891808980] [2020-12-22 11:10:09,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:09,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:09,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891808980] [2020-12-22 11:10:09,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:09,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:10:09,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66574199] [2020-12-22 11:10:09,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:10:09,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:09,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:10:09,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:09,731 INFO L87 Difference]: Start difference. First operand 232 states and 641 transitions. Second operand 5 states. [2020-12-22 11:10:09,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:09,768 INFO L93 Difference]: Finished difference Result 250 states and 665 transitions. [2020-12-22 11:10:09,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:10:09,768 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 11:10:09,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:09,773 INFO L225 Difference]: With dead ends: 250 [2020-12-22 11:10:09,773 INFO L226 Difference]: Without dead ends: 214 [2020-12-22 11:10:09,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:10:09,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-12-22 11:10:09,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-12-22 11:10:09,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-12-22 11:10:09,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 581 transitions. [2020-12-22 11:10:09,817 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 581 transitions. Word has length 10 [2020-12-22 11:10:09,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:09,818 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 581 transitions. [2020-12-22 11:10:09,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:10:09,818 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 581 transitions. [2020-12-22 11:10:09,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:10:09,820 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:09,821 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:09,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:10:09,821 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:09,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:09,822 INFO L82 PathProgramCache]: Analyzing trace with hash 329174463, now seen corresponding path program 1 times [2020-12-22 11:10:09,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:09,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509607113] [2020-12-22 11:10:09,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:09,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:09,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509607113] [2020-12-22 11:10:09,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:09,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:10:09,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261078992] [2020-12-22 11:10:09,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:10:09,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:09,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:10:09,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:09,970 INFO L87 Difference]: Start difference. First operand 214 states and 581 transitions. Second operand 5 states. [2020-12-22 11:10:09,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:09,996 INFO L93 Difference]: Finished difference Result 226 states and 595 transitions. [2020-12-22 11:10:09,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:10:09,997 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-22 11:10:09,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:10,000 INFO L225 Difference]: With dead ends: 226 [2020-12-22 11:10:10,001 INFO L226 Difference]: Without dead ends: 202 [2020-12-22 11:10:10,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:10:10,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-12-22 11:10:10,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-12-22 11:10:10,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-12-22 11:10:10,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 543 transitions. [2020-12-22 11:10:10,014 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 543 transitions. Word has length 11 [2020-12-22 11:10:10,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:10,014 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 543 transitions. [2020-12-22 11:10:10,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:10:10,014 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 543 transitions. [2020-12-22 11:10:10,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:10:10,019 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:10,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:10,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:10:10,020 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:10,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:10,020 INFO L82 PathProgramCache]: Analyzing trace with hash 400886096, now seen corresponding path program 1 times [2020-12-22 11:10:10,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:10,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433043610] [2020-12-22 11:10:10,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:10,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:10,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433043610] [2020-12-22 11:10:10,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:10,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:10:10,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504059562] [2020-12-22 11:10:10,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:10:10,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:10,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:10:10,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:10:10,160 INFO L87 Difference]: Start difference. First operand 202 states and 543 transitions. Second operand 6 states. [2020-12-22 11:10:10,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:10,209 INFO L93 Difference]: Finished difference Result 247 states and 648 transitions. [2020-12-22 11:10:10,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:10:10,210 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-22 11:10:10,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:10,211 INFO L225 Difference]: With dead ends: 247 [2020-12-22 11:10:10,211 INFO L226 Difference]: Without dead ends: 106 [2020-12-22 11:10:10,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:10:10,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-12-22 11:10:10,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-12-22 11:10:10,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-12-22 11:10:10,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 258 transitions. [2020-12-22 11:10:10,217 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 258 transitions. Word has length 11 [2020-12-22 11:10:10,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:10,217 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 258 transitions. [2020-12-22 11:10:10,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:10:10,218 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 258 transitions. [2020-12-22 11:10:10,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:10:10,218 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:10,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:10,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:10:10,219 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:10,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:10,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1225814647, now seen corresponding path program 1 times [2020-12-22 11:10:10,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:10,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010564366] [2020-12-22 11:10:10,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:10,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:10,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010564366] [2020-12-22 11:10:10,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:10,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:10:10,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060401911] [2020-12-22 11:10:10,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:10:10,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:10,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:10:10,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:10,274 INFO L87 Difference]: Start difference. First operand 106 states and 258 transitions. Second operand 5 states. [2020-12-22 11:10:10,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:10,321 INFO L93 Difference]: Finished difference Result 148 states and 351 transitions. [2020-12-22 11:10:10,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:10:10,322 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:10:10,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:10,323 INFO L225 Difference]: With dead ends: 148 [2020-12-22 11:10:10,323 INFO L226 Difference]: Without dead ends: 76 [2020-12-22 11:10:10,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:10:10,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-12-22 11:10:10,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-12-22 11:10:10,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-12-22 11:10:10,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 169 transitions. [2020-12-22 11:10:10,328 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 169 transitions. Word has length 12 [2020-12-22 11:10:10,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:10,329 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 169 transitions. [2020-12-22 11:10:10,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:10:10,334 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 169 transitions. [2020-12-22 11:10:10,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:10:10,335 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:10,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:10,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:10:10,335 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:10,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:10,336 INFO L82 PathProgramCache]: Analyzing trace with hash 532831146, now seen corresponding path program 1 times [2020-12-22 11:10:10,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:10,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311841118] [2020-12-22 11:10:10,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:10,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:10,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311841118] [2020-12-22 11:10:10,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:10,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:10:10,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395231121] [2020-12-22 11:10:10,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:10,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:10,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:10,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:10,428 INFO L87 Difference]: Start difference. First operand 76 states and 169 transitions. Second operand 4 states. [2020-12-22 11:10:10,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:10,457 INFO L93 Difference]: Finished difference Result 87 states and 174 transitions. [2020-12-22 11:10:10,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:10:10,462 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-22 11:10:10,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:10,463 INFO L225 Difference]: With dead ends: 87 [2020-12-22 11:10:10,463 INFO L226 Difference]: Without dead ends: 66 [2020-12-22 11:10:10,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:10,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-22 11:10:10,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-12-22 11:10:10,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-12-22 11:10:10,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 133 transitions. [2020-12-22 11:10:10,467 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 133 transitions. Word has length 13 [2020-12-22 11:10:10,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:10,467 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 133 transitions. [2020-12-22 11:10:10,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:10,468 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 133 transitions. [2020-12-22 11:10:10,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:10:10,468 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:10,468 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:10,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:10:10,469 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:10,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:10,470 INFO L82 PathProgramCache]: Analyzing trace with hash -206155871, now seen corresponding path program 1 times [2020-12-22 11:10:10,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:10,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454561465] [2020-12-22 11:10:10,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:10,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:10,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454561465] [2020-12-22 11:10:10,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:10,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:10:10,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653428850] [2020-12-22 11:10:10,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:10:10,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:10,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:10:10,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:10,583 INFO L87 Difference]: Start difference. First operand 66 states and 133 transitions. Second operand 5 states. [2020-12-22 11:10:10,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:10,627 INFO L93 Difference]: Finished difference Result 62 states and 108 transitions. [2020-12-22 11:10:10,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:10:10,628 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-22 11:10:10,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:10,629 INFO L225 Difference]: With dead ends: 62 [2020-12-22 11:10:10,629 INFO L226 Difference]: Without dead ends: 47 [2020-12-22 11:10:10,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:10:10,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-12-22 11:10:10,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-12-22 11:10:10,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-22 11:10:10,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 78 transitions. [2020-12-22 11:10:10,632 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 78 transitions. Word has length 14 [2020-12-22 11:10:10,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:10,633 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 78 transitions. [2020-12-22 11:10:10,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:10:10,633 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 78 transitions. [2020-12-22 11:10:10,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:10:10,635 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:10,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:10,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:10:10,636 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:10,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:10,636 INFO L82 PathProgramCache]: Analyzing trace with hash -2107760638, now seen corresponding path program 1 times [2020-12-22 11:10:10,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:10,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930442766] [2020-12-22 11:10:10,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:10,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:10,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930442766] [2020-12-22 11:10:10,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:10,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:10:10,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558853634] [2020-12-22 11:10:10,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:10:10,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:10,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:10:10,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:10:10,732 INFO L87 Difference]: Start difference. First operand 47 states and 78 transitions. Second operand 6 states. [2020-12-22 11:10:10,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:10,782 INFO L93 Difference]: Finished difference Result 40 states and 62 transitions. [2020-12-22 11:10:10,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:10:10,783 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-22 11:10:10,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:10,784 INFO L225 Difference]: With dead ends: 40 [2020-12-22 11:10:10,784 INFO L226 Difference]: Without dead ends: 34 [2020-12-22 11:10:10,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:10:10,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-22 11:10:10,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-22 11:10:10,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-22 11:10:10,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 52 transitions. [2020-12-22 11:10:10,787 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 52 transitions. Word has length 15 [2020-12-22 11:10:10,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:10,787 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 52 transitions. [2020-12-22 11:10:10,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:10:10,788 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2020-12-22 11:10:10,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 11:10:10,788 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:10,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:10,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 11:10:10,789 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:10,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:10,792 INFO L82 PathProgramCache]: Analyzing trace with hash 202243322, now seen corresponding path program 1 times [2020-12-22 11:10:10,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:10,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920207489] [2020-12-22 11:10:10,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:10,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:10,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920207489] [2020-12-22 11:10:10,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:10,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:10:10,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622770639] [2020-12-22 11:10:10,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:10:10,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:10,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:10:10,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:10,906 INFO L87 Difference]: Start difference. First operand 34 states and 52 transitions. Second operand 5 states. [2020-12-22 11:10:10,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:10,929 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2020-12-22 11:10:10,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:10:10,929 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-12-22 11:10:10,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:10,930 INFO L225 Difference]: With dead ends: 33 [2020-12-22 11:10:10,930 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:10:10,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:10:10,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:10:10,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:10:10,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:10:10,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:10:10,931 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-12-22 11:10:10,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:10,933 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:10:10,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:10:10,935 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:10:10,935 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:10:10,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 11:10:10,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:10:10 BasicIcfg [2020-12-22 11:10:10,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:10:10,941 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:10:10,941 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:10:10,941 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:10:10,941 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:10:05" (3/4) ... [2020-12-22 11:10:10,946 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:10:10,954 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:10:10,954 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:10:10,954 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:10:10,961 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 11:10:10,962 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:10:10,962 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:10:10,962 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:10:11,040 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe018_tso.oepc.i-witness.graphml [2020-12-22 11:10:11,043 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:10:11,045 INFO L168 Benchmark]: Toolchain (without parser) took 7459.85 ms. Allocated memory was 153.1 MB in the beginning and 222.3 MB in the end (delta: 69.2 MB). Free memory was 126.0 MB in the beginning and 191.9 MB in the end (delta: -65.8 MB). Peak memory consumption was 4.3 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:11,045 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 153.1 MB. Free memory is still 126.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:10:11,051 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.38 ms. Allocated memory is still 153.1 MB. Free memory was 125.8 MB in the beginning and 132.6 MB in the end (delta: -6.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:11,051 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.15 ms. Allocated memory is still 153.1 MB. Free memory was 132.6 MB in the beginning and 130.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:11,052 INFO L168 Benchmark]: Boogie Preprocessor took 61.18 ms. Allocated memory is still 153.1 MB. Free memory was 130.5 MB in the beginning and 129.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:11,053 INFO L168 Benchmark]: RCFGBuilder took 584.40 ms. Allocated memory is still 153.1 MB. Free memory was 129.5 MB in the beginning and 107.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:11,053 INFO L168 Benchmark]: TraceAbstraction took 5859.19 ms. Allocated memory was 153.1 MB in the beginning and 222.3 MB in the end (delta: 69.2 MB). Free memory was 107.0 MB in the beginning and 194.5 MB in the end (delta: -87.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:10:11,054 INFO L168 Benchmark]: Witness Printer took 102.65 ms. Allocated memory is still 222.3 MB. Free memory was 194.5 MB in the beginning and 191.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:11,059 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 153.1 MB. Free memory is still 126.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 763.38 ms. Allocated memory is still 153.1 MB. Free memory was 125.8 MB in the beginning and 132.6 MB in the end (delta: -6.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 78.15 ms. Allocated memory is still 153.1 MB. Free memory was 132.6 MB in the beginning and 130.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 61.18 ms. Allocated memory is still 153.1 MB. Free memory was 130.5 MB in the beginning and 129.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 584.40 ms. Allocated memory is still 153.1 MB. Free memory was 129.5 MB in the beginning and 107.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5859.19 ms. Allocated memory was 153.1 MB in the beginning and 222.3 MB in the end (delta: 69.2 MB). Free memory was 107.0 MB in the beginning and 194.5 MB in the end (delta: -87.6 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 102.65 ms. Allocated memory is still 222.3 MB. Free memory was 194.5 MB in the beginning and 191.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 758 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 24 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 53 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.3s, 82 PlacesBefore, 31 PlacesAfterwards, 74 TransitionsBefore, 22 TransitionsAfterwards, 1212 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 61 TotalNumberOfCompositions, 2020 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.7s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 220 SDtfs, 244 SDslu, 367 SDs, 0 SdLazy, 167 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 6005 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...