/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/safe035_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:14:09,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:14:09,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:14:09,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:14:09,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:14:09,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:14:09,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:14:09,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:14:09,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:14:09,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:14:09,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:14:09,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:14:09,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:14:09,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:14:09,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:14:09,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:14:09,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:14:09,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:14:09,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:14:09,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:14:09,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:14:09,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:14:09,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:14:09,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:14:09,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:14:09,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:14:09,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:14:09,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:14:09,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:14:09,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:14:09,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:14:09,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:14:09,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:14:09,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:14:09,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:14:09,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:14:09,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:14:09,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:14:09,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:14:09,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:14:09,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:14:09,536 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:14:09,575 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:14:09,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:14:09,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:14:09,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:14:09,578 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:14:09,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:14:09,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:14:09,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:14:09,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:14:09,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:14:09,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:14:09,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:14:09,580 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:14:09,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:14:09,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:14:09,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:14:09,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:14:09,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:14:09,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:14:09,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:14:09,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:14:09,582 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:14:09,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:14:09,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:14:09,583 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:14:09,583 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:14:09,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:14:10,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:14:10,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:14:10,010 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:14:10,011 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:14:10,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_rmo.oepc.i [2020-12-22 11:14:10,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c02fa15f5/6875c9e4f48c473186b54a5ca412d18b/FLAGca0986f6b [2020-12-22 11:14:11,017 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:14:11,018 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_rmo.oepc.i [2020-12-22 11:14:11,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c02fa15f5/6875c9e4f48c473186b54a5ca412d18b/FLAGca0986f6b [2020-12-22 11:14:11,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c02fa15f5/6875c9e4f48c473186b54a5ca412d18b [2020-12-22 11:14:11,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:14:11,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:14:11,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:14:11,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:14:11,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:14:11,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:14:11" (1/1) ... [2020-12-22 11:14:11,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2193831c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:11, skipping insertion in model container [2020-12-22 11:14:11,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:14:11" (1/1) ... [2020-12-22 11:14:11,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:14:11,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:14:11,474 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/safe035_rmo.oepc.i[950,963] [2020-12-22 11:14:11,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:14:11,672 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:14:11,687 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/safe035_rmo.oepc.i[950,963] [2020-12-22 11:14:11,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:14:11,845 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:14:11,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:11 WrapperNode [2020-12-22 11:14:11,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:14:11,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:14:11,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:14:11,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:14:11,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:11" (1/1) ... [2020-12-22 11:14:11,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:11" (1/1) ... [2020-12-22 11:14:11,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:14:11,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:14:11,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:14:11,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:14:11,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:11" (1/1) ... [2020-12-22 11:14:11,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:11" (1/1) ... [2020-12-22 11:14:11,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:11" (1/1) ... [2020-12-22 11:14:11,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:11" (1/1) ... [2020-12-22 11:14:11,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:11" (1/1) ... [2020-12-22 11:14:11,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:11" (1/1) ... [2020-12-22 11:14:11,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:11" (1/1) ... [2020-12-22 11:14:11,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:14:11,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:14:11,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:14:11,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:14:11,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:11" (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 11:14:12,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:14:12,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:14:12,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:14:12,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:14:12,112 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:14:12,112 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:14:12,113 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:14:12,113 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:14:12,113 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:14:12,113 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:14:12,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:14:12,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:14:12,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:14:12,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:14:12,116 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 11:14:12,570 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:14:12,571 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:14:12,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:14:12 BoogieIcfgContainer [2020-12-22 11:14:12,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:14:12,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:14:12,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:14:12,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:14:12,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:14:11" (1/3) ... [2020-12-22 11:14:12,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a80456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:14:12, skipping insertion in model container [2020-12-22 11:14:12,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:11" (2/3) ... [2020-12-22 11:14:12,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a80456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:14:12, skipping insertion in model container [2020-12-22 11:14:12,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:14:12" (3/3) ... [2020-12-22 11:14:12,587 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_rmo.oepc.i [2020-12-22 11:14:12,596 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:14:12,597 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:14:12,603 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:14:12,604 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:14:12,677 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,678 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,680 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,680 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,681 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,681 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,681 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,681 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,683 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,683 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,684 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,684 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,684 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,685 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,685 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,685 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,686 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,686 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,686 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,686 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,689 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,689 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,689 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,690 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,692 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,692 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,692 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,692 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,693 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,693 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,698 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,699 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,700 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,700 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,711 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,711 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,711 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,712 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,718 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,718 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,718 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,718 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:12,720 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:14:12,747 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:14:12,774 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:14:12,774 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:14:12,774 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:14:12,775 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:14:12,775 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:14:12,775 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:14:12,775 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:14:12,775 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:14:12,791 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:14:12,794 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-22 11:14:12,799 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-22 11:14:12,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2020-12-22 11:14:12,878 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-12-22 11:14:12,878 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:14:12,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2020-12-22 11:14:12,896 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-22 11:14:15,606 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-22 11:14:15,909 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-22 11:14:16,014 INFO L131 LiptonReduction]: Checked pairs total: 2511 [2020-12-22 11:14:16,014 INFO L133 LiptonReduction]: Total number of compositions: 63 [2020-12-22 11:14:16,021 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-12-22 11:14:16,051 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-12-22 11:14:16,053 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-12-22 11:14:16,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:14:16,061 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:16,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:16,062 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:16,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:16,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1857977145, now seen corresponding path program 1 times [2020-12-22 11:14:16,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:16,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684385633] [2020-12-22 11:14:16,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:16,287 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 11:14:16,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684385633] [2020-12-22 11:14:16,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:16,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:14:16,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052827912] [2020-12-22 11:14:16,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:14:16,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:16,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:14:16,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:14:16,323 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-12-22 11:14:16,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:16,376 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-12-22 11:14:16,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:14:16,377 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-22 11:14:16,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:16,396 INFO L225 Difference]: With dead ends: 362 [2020-12-22 11:14:16,396 INFO L226 Difference]: Without dead ends: 298 [2020-12-22 11:14:16,397 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 11:14:16,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-12-22 11:14:16,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-12-22 11:14:16,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-22 11:14:16,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-12-22 11:14:16,479 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-12-22 11:14:16,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:16,481 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-12-22 11:14:16,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:14:16,481 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-12-22 11:14:16,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:14:16,483 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:16,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:16,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:14:16,483 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:16,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:16,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1762722497, now seen corresponding path program 1 times [2020-12-22 11:14:16,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:16,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198322747] [2020-12-22 11:14:16,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:16,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:14:16,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198322747] [2020-12-22 11:14:16,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:16,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:14:16,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683212161] [2020-12-22 11:14:16,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:14:16,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:16,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:14:16,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:14:16,727 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-12-22 11:14:16,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:16,825 INFO L93 Difference]: Finished difference Result 552 states and 1504 transitions. [2020-12-22 11:14:16,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:14:16,827 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:14:16,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:16,834 INFO L225 Difference]: With dead ends: 552 [2020-12-22 11:14:16,834 INFO L226 Difference]: Without dead ends: 382 [2020-12-22 11:14:16,835 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 11:14:16,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-12-22 11:14:16,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 298. [2020-12-22 11:14:16,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-22 11:14:16,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 792 transitions. [2020-12-22 11:14:16,881 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 792 transitions. Word has length 9 [2020-12-22 11:14:16,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:16,882 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 792 transitions. [2020-12-22 11:14:16,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:14:16,882 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 792 transitions. [2020-12-22 11:14:16,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:14:16,884 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:16,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:16,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:14:16,885 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:16,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:16,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1189149087, now seen corresponding path program 1 times [2020-12-22 11:14:16,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:16,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464223880] [2020-12-22 11:14:16,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:16,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:14:16,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464223880] [2020-12-22 11:14:16,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:16,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:14:16,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829658579] [2020-12-22 11:14:16,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:14:16,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:16,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:14:16,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:14:16,970 INFO L87 Difference]: Start difference. First operand 298 states and 792 transitions. Second operand 5 states. [2020-12-22 11:14:17,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:17,046 INFO L93 Difference]: Finished difference Result 338 states and 836 transitions. [2020-12-22 11:14:17,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:14:17,049 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 11:14:17,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:17,052 INFO L225 Difference]: With dead ends: 338 [2020-12-22 11:14:17,053 INFO L226 Difference]: Without dead ends: 222 [2020-12-22 11:14:17,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:14:17,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-12-22 11:14:17,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 182. [2020-12-22 11:14:17,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-12-22 11:14:17,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 468 transitions. [2020-12-22 11:14:17,079 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 468 transitions. Word has length 10 [2020-12-22 11:14:17,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:17,079 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 468 transitions. [2020-12-22 11:14:17,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:14:17,079 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 468 transitions. [2020-12-22 11:14:17,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:14:17,087 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:17,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:17,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:14:17,088 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:17,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:17,090 INFO L82 PathProgramCache]: Analyzing trace with hash 681758540, now seen corresponding path program 1 times [2020-12-22 11:14:17,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:17,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896946315] [2020-12-22 11:14:17,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:17,237 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 11:14:17,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896946315] [2020-12-22 11:14:17,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:17,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:14:17,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128523721] [2020-12-22 11:14:17,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:14:17,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:17,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:14:17,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:14:17,243 INFO L87 Difference]: Start difference. First operand 182 states and 468 transitions. Second operand 3 states. [2020-12-22 11:14:17,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:17,257 INFO L93 Difference]: Finished difference Result 146 states and 331 transitions. [2020-12-22 11:14:17,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:14:17,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-12-22 11:14:17,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:17,259 INFO L225 Difference]: With dead ends: 146 [2020-12-22 11:14:17,260 INFO L226 Difference]: Without dead ends: 146 [2020-12-22 11:14:17,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:14:17,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-12-22 11:14:17,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-12-22 11:14:17,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-12-22 11:14:17,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 331 transitions. [2020-12-22 11:14:17,268 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 331 transitions. Word has length 12 [2020-12-22 11:14:17,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:17,268 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 331 transitions. [2020-12-22 11:14:17,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:14:17,268 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 331 transitions. [2020-12-22 11:14:17,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:14:17,272 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:17,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:17,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:14:17,273 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:17,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:17,275 INFO L82 PathProgramCache]: Analyzing trace with hash -2034044923, now seen corresponding path program 1 times [2020-12-22 11:14:17,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:17,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359799952] [2020-12-22 11:14:17,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:17,389 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 11:14:17,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359799952] [2020-12-22 11:14:17,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:17,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:14:17,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297158353] [2020-12-22 11:14:17,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:14:17,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:17,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:14:17,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:14:17,396 INFO L87 Difference]: Start difference. First operand 146 states and 331 transitions. Second operand 4 states. [2020-12-22 11:14:17,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:17,415 INFO L93 Difference]: Finished difference Result 101 states and 200 transitions. [2020-12-22 11:14:17,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:14:17,415 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-22 11:14:17,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:17,416 INFO L225 Difference]: With dead ends: 101 [2020-12-22 11:14:17,416 INFO L226 Difference]: Without dead ends: 101 [2020-12-22 11:14:17,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:14:17,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-12-22 11:14:17,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2020-12-22 11:14:17,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-22 11:14:17,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 190 transitions. [2020-12-22 11:14:17,421 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 190 transitions. Word has length 13 [2020-12-22 11:14:17,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:17,421 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 190 transitions. [2020-12-22 11:14:17,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:14:17,422 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 190 transitions. [2020-12-22 11:14:17,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:14:17,422 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:17,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:17,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:14:17,423 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:17,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:17,423 INFO L82 PathProgramCache]: Analyzing trace with hash -666358640, now seen corresponding path program 1 times [2020-12-22 11:14:17,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:17,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453513379] [2020-12-22 11:14:17,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:17,509 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 11:14:17,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453513379] [2020-12-22 11:14:17,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:17,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:14:17,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613052661] [2020-12-22 11:14:17,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:14:17,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:17,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:14:17,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:14:17,513 INFO L87 Difference]: Start difference. First operand 97 states and 190 transitions. Second operand 5 states. [2020-12-22 11:14:17,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:17,559 INFO L93 Difference]: Finished difference Result 181 states and 338 transitions. [2020-12-22 11:14:17,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:14:17,560 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-22 11:14:17,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:17,561 INFO L225 Difference]: With dead ends: 181 [2020-12-22 11:14:17,561 INFO L226 Difference]: Without dead ends: 140 [2020-12-22 11:14:17,562 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 11:14:17,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-12-22 11:14:17,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 97. [2020-12-22 11:14:17,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-22 11:14:17,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 186 transitions. [2020-12-22 11:14:17,567 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 186 transitions. Word has length 15 [2020-12-22 11:14:17,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:17,567 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 186 transitions. [2020-12-22 11:14:17,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:14:17,567 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 186 transitions. [2020-12-22 11:14:17,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:14:17,568 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:17,569 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:17,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:14:17,569 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:17,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:17,570 INFO L82 PathProgramCache]: Analyzing trace with hash -574188510, now seen corresponding path program 2 times [2020-12-22 11:14:17,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:17,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357789712] [2020-12-22 11:14:17,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:17,649 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 11:14:17,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357789712] [2020-12-22 11:14:17,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:17,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:14:17,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730673964] [2020-12-22 11:14:17,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:14:17,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:17,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:14:17,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:14:17,652 INFO L87 Difference]: Start difference. First operand 97 states and 186 transitions. Second operand 5 states. [2020-12-22 11:14:17,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:17,681 INFO L93 Difference]: Finished difference Result 77 states and 147 transitions. [2020-12-22 11:14:17,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:14:17,682 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-22 11:14:17,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:17,683 INFO L225 Difference]: With dead ends: 77 [2020-12-22 11:14:17,683 INFO L226 Difference]: Without dead ends: 69 [2020-12-22 11:14:17,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:14:17,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-22 11:14:17,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2020-12-22 11:14:17,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-12-22 11:14:17,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 123 transitions. [2020-12-22 11:14:17,686 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 123 transitions. Word has length 15 [2020-12-22 11:14:17,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:17,687 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 123 transitions. [2020-12-22 11:14:17,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:14:17,687 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 123 transitions. [2020-12-22 11:14:17,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:14:17,688 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:17,688 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:17,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:14:17,688 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:17,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:17,689 INFO L82 PathProgramCache]: Analyzing trace with hash -681441042, now seen corresponding path program 1 times [2020-12-22 11:14:17,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:17,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184010592] [2020-12-22 11:14:17,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:17,742 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 11:14:17,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184010592] [2020-12-22 11:14:17,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:17,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:14:17,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892146753] [2020-12-22 11:14:17,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:14:17,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:17,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:14:17,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:14:17,745 INFO L87 Difference]: Start difference. First operand 65 states and 123 transitions. Second operand 5 states. [2020-12-22 11:14:17,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:17,807 INFO L93 Difference]: Finished difference Result 119 states and 209 transitions. [2020-12-22 11:14:17,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:14:17,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-22 11:14:17,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:17,808 INFO L225 Difference]: With dead ends: 119 [2020-12-22 11:14:17,809 INFO L226 Difference]: Without dead ends: 47 [2020-12-22 11:14:17,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:14:17,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-12-22 11:14:17,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-12-22 11:14:17,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-22 11:14:17,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 76 transitions. [2020-12-22 11:14:17,811 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 76 transitions. Word has length 18 [2020-12-22 11:14:17,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:17,812 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 76 transitions. [2020-12-22 11:14:17,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:14:17,812 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 76 transitions. [2020-12-22 11:14:17,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:14:17,813 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:17,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:17,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:14:17,813 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:17,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:17,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1665896384, now seen corresponding path program 2 times [2020-12-22 11:14:17,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:17,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796610473] [2020-12-22 11:14:17,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:17,869 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 11:14:17,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796610473] [2020-12-22 11:14:17,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:17,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:14:17,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431200434] [2020-12-22 11:14:17,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:14:17,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:17,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:14:17,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:14:17,871 INFO L87 Difference]: Start difference. First operand 47 states and 76 transitions. Second operand 5 states. [2020-12-22 11:14:17,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:17,904 INFO L93 Difference]: Finished difference Result 61 states and 98 transitions. [2020-12-22 11:14:17,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:14:17,905 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-22 11:14:17,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:17,906 INFO L225 Difference]: With dead ends: 61 [2020-12-22 11:14:17,906 INFO L226 Difference]: Without dead ends: 37 [2020-12-22 11:14:17,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 11:14:17,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-22 11:14:17,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-12-22 11:14:17,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-22 11:14:17,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-12-22 11:14:17,909 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-12-22 11:14:17,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:17,909 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-12-22 11:14:17,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:14:17,909 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-12-22 11:14:17,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:14:17,910 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:17,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:17,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:14:17,910 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:17,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:17,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1696595058, now seen corresponding path program 3 times [2020-12-22 11:14:17,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:17,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554978565] [2020-12-22 11:14:17,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:17,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:14:17,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554978565] [2020-12-22 11:14:17,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:17,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:14:17,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603423575] [2020-12-22 11:14:17,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:14:17,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:17,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:14:17,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:14:17,974 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-12-22 11:14:18,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:18,013 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-12-22 11:14:18,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:14:18,014 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-22 11:14:18,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:18,014 INFO L225 Difference]: With dead ends: 36 [2020-12-22 11:14:18,014 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:14:18,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 11:14:18,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:14:18,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:14:18,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:14:18,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:14:18,016 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-12-22 11:14:18,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:18,016 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:14:18,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:14:18,016 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:14:18,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:14:18,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 11:14:18,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:14:18 BasicIcfg [2020-12-22 11:14:18,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:14:18,021 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:14:18,021 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:14:18,022 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:14:18,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:14:12" (3/4) ... [2020-12-22 11:14:18,026 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:14:18,035 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:14:18,035 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:14:18,035 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:14:18,040 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 11:14:18,041 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:14:18,041 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:14:18,041 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:14:18,085 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe035_rmo.oepc.i-witness.graphml [2020-12-22 11:14:18,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:14:18,087 INFO L168 Benchmark]: Toolchain (without parser) took 6854.55 ms. Allocated memory was 155.2 MB in the beginning and 205.5 MB in the end (delta: 50.3 MB). Free memory was 129.5 MB in the beginning and 75.2 MB in the end (delta: 54.3 MB). Peak memory consumption was 106.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:18,087 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 155.2 MB. Free memory is still 129.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:14:18,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 613.45 ms. Allocated memory is still 155.2 MB. Free memory was 129.3 MB in the beginning and 132.1 MB in the end (delta: -2.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:18,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.84 ms. Allocated memory is still 155.2 MB. Free memory was 132.1 MB in the beginning and 130.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:18,089 INFO L168 Benchmark]: Boogie Preprocessor took 30.15 ms. Allocated memory is still 155.2 MB. Free memory was 130.0 MB in the beginning and 128.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:18,090 INFO L168 Benchmark]: RCFGBuilder took 600.20 ms. Allocated memory is still 155.2 MB. Free memory was 128.4 MB in the beginning and 106.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:18,090 INFO L168 Benchmark]: TraceAbstraction took 5442.22 ms. Allocated memory was 155.2 MB in the beginning and 205.5 MB in the end (delta: 50.3 MB). Free memory was 105.9 MB in the beginning and 77.9 MB in the end (delta: 28.0 MB). Peak memory consumption was 78.4 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:18,091 INFO L168 Benchmark]: Witness Printer took 63.85 ms. Allocated memory is still 205.5 MB. Free memory was 77.9 MB in the beginning and 75.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:18,095 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 155.2 MB. Free memory is still 129.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 613.45 ms. Allocated memory is still 155.2 MB. Free memory was 129.3 MB in the beginning and 132.1 MB in the end (delta: -2.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 93.84 ms. Allocated memory is still 155.2 MB. Free memory was 132.1 MB in the beginning and 130.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.15 ms. Allocated memory is still 155.2 MB. Free memory was 130.0 MB in the beginning and 128.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 600.20 ms. Allocated memory is still 155.2 MB. Free memory was 128.4 MB in the beginning and 106.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5442.22 ms. Allocated memory was 155.2 MB in the beginning and 205.5 MB in the end (delta: 50.3 MB). Free memory was 105.9 MB in the beginning and 77.9 MB in the end (delta: 28.0 MB). Peak memory consumption was 78.4 MB. Max. memory is 8.0 GB. * Witness Printer took 63.85 ms. Allocated memory is still 205.5 MB. Free memory was 77.9 MB in the beginning and 75.2 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 845 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 68 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.2s, 83 PlacesBefore, 32 PlacesAfterwards, 75 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 63 TotalNumberOfCompositions, 2511 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, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 212 SDtfs, 169 SDslu, 305 SDs, 0 SdLazy, 126 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 175 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 6162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...